364  
FNUS55 KRIW 211953  
FWFRIW  
 
FIRE WEATHER PLANNING FORECAST FOR WESTERN AND CENTRAL WYOMING  
NATIONAL WEATHER SERVICE RIVERTON WY  
153 PM MDT FRI SEP 21 2018  
 
...RED FLAG WARNING IN EFFECT FROM NOON SATURDAY TO 8 PM MDT  
SUNDAY FOR ZONES 277, 278, 279, 280, 281, 283, 285, 288, 289, 300,  
414, 415, AND 416...  
   
DISCUSSION
 
 
...YELLOWSTONE NP AND TETON DISPATCH AREAS (INCLUDES FIRE WEATHER  
ZONES 140...414...415...AND 416)...  
 
MILD COOL DAY WITH SOME BREEZY WIND WILL BECOME MORE SEASONABLE  
WITH WINDY AND VERY DRY CONDITIONS SATURDAY. A RED FLAG WARNING  
HAS BEEN ISSUED FOR CRITICAL FIRE WEATHER CONDITIONS IN THE 400  
ZONES BOTH SATURDAY AND SUNDAY. ALTHOUGH FUELS ARE CURRENTLY NOT  
CRITICAL IN ZONE 140, ELEVATED FIRE WEATHER CONDITIONS WILL OCCUR  
OVER YNP BOTH DAYS. A WEATHER SYSTEM IN THE PACIFIC NORTHWEST  
WILL INCREASE WEST-SOUTHWEST WIND AND TEMPERATURES, AS WELL AS  
CREATE DRIER SURFACE CONDITIONS BOTH DAYS. THE SYSTEM WILL THEN  
BRING A DRY COLD FRONT FROM THE WEST-NORTHWEST SUNDAY NIGHT.  
EXPECTING BOTH ROOSEVELT AND MARTEN CREEK FIRES TO RESPOND  
ACCORDINGLY.  
   
..CODY DISPATCH AREA (INCLUDES FIRE WEATHER ZONES 275...276
 
 
282...283...285...286...287...288...AND 289)...  
 
FRIDAY'S MILD CONDITIONS WILL BECOME WARMER, WINDIER, AND DRIER  
SATURDAY AND SUNDAY DUE TO A WEATHER SYSTEM IN THE PACIFIC  
NORTHWEST MOVING EASTWARD INTO MONTANA. A RED FLAG WARNING HAS  
BEEN ISSUED FOR ZONES 283, 285, 288, AND 289, THE SOUTHERN HALF OF  
THE DISPATCH AREA DUE TO THE CRITICAL FIRE WEATHER CONDITIONS. THE  
REST OF THE DISPATCH AREA SHOULD SEE MARGINAL CONDITIONS THOUGH. A  
RELATIVELY DRY COLD FRONT WILL PUSH THROUGH THE AREA SUNDAY NIGHT  
FROM THE NORTHWEST TO THE SOUTHEAST.  
   
..CASPER DISPATCH AREA (INCLUDES FIRE WEATHER ZONES 277...278
 
 
279...280...281...285...289...AND 300)...  
 
A COOL BREEZY DAY ON FRIDAY WILL WARM, DRY, AND BECOME WINDIER ON  
BOTH SATURDAY AND SUNDAY AS A WEATHER SYSTEM MOVES FROM THE  
PACIFIC NORTHWEST INTO MONTANA. THE WEATHER CONDITIONS WILL BECOME  
CRITICAL SATURDAY AFTERNOON, THUS A RED FLAG WARNING HAS BEEN  
ISSUED FOR ALL DISPATCH AREA ZONES IN THE RIVERTON WFO AREA. FOR  
ZONE 281, ONLY THE SOUTHERN HALF OF JOHNSON COUNTY SHOULD BE  
CRITICAL. THE WARNING CONTINUES INTO SUNDAY BEFORE A COLD FRONT  
PUSHES THROUGH THE AREA SUNDAY NIGHT. THE FRONT HAS A CHANCE OF  
BRINGING PRECIPITATION TO SOUTHERN WY AND AROUND THE BIGHORNS  
MOUNTAINS.  
   
..THUNDERSTORMS IMPLY STRONG GUSTY AND ERRATIC WINDS
 
   
..HAINES INDEX IS HIGH LEVEL HAINES BOTH DAY AND NIGHT
 
 
WYZ280-221030-  
NATRONA COUNTY/CASPER BLM-  
INCLUDING THE CITIES OF CASPER AND MIDWEST  
153 PM MDT FRI SEP 21 2018  
 
...RED FLAG WARNING IN EFFECT FROM NOON SATURDAY TO 8 PM MDT  
SUNDAY...  
   
THIS AFTERNOON
 
 
SKY/WEATHER.........SUNNY. SMOKE.  
MAX TEMPERATURE.....72-77.  
24 HR TREND......12 DEGREES WARMER.  
MIN HUMIDITY........7-13 PERCENT.  
24 HR TREND......17 PERCENT DRIER.  
20-FOOT WINDS.......SOUTHWEST WINDS AROUND 10 MPH WITH HIGHER  
GUSTS.  
RIDGE TOP WINDS.....SOUTHWEST AROUND 15 MPH.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTHWEST AROUND 15 MPH.  
MIXING HEIGHT.......7200-7800 FT AGL.  
SMOKE DISPERSAL.....VERY GOOD.  
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
TONIGHT
 
 
SKY/WEATHER.........CLEAR. AREAS OF SMOKE IN THE EVENING.  
MIN TEMPERATURE.....42-47.  
24 HR TREND......11 DEGREES WARMER.  
MAX HUMIDITY........49-55 PERCENT.  
24 HR TREND......42 PERCENT DRIER.  
HUMIDITY RECOVERY...MODERATE.  
20-FOOT WINDS.......SOUTHWEST WINDS AROUND 10 MPH WITH GUSTS TO  
AROUND 15 MPH.  
RIDGE TOP WINDS.....SOUTHWEST AROUND 15 MPH.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTHWEST AROUND 15 MPH.  
MIXING HEIGHT.......2200-2800 FT AGL UNTIL 2400, THEN 200 FT AGL.  
SMOKE DISPERSAL.....POOR.  
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
SATURDAY
 
 
SKY/WEATHER.........MOSTLY SUNNY.  
MAX TEMPERATURE.....78-83.  
24 HR TREND......6 DEGREES WARMER.  
MIN HUMIDITY........4-10 PERCENT.  
24 HR TREND......3 PERCENT DRIER.  
20-FOOT WINDS.......SOUTHWEST WINDS 10 TO 15 MPH WITH HIGHER GUSTS  
UNTIL 1200, THEN WEST AROUND 20 MPH WITH GUSTS  
TO AROUND 35 MPH.  
RIDGE TOP WINDS.....SOUTHWEST 15 TO 20 MPH UNTIL 1200, THEN WEST  
AROUND 25 MPH.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTHWEST 15 TO 20 MPH UNTIL 1200, THEN WEST 25  
TO 30 MPH.  
MIXING HEIGHT.......200 FT AGL UNTIL 1200, THEN 11600-12000 FT AGL.  
SMOKE DISPERSAL.....POOR UNTIL 1200, THEN EXCELLENT.  
HAINES INDEX........6 OR HIGH POTENTIAL FOR LARGE PLUME DOMINATED  
FIRE GROWTH.  
   
SATURDAY NIGHT
 
 
SKY/WEATHER.........CLEAR.  
MIN TEMPERATURE.....46-51.  
24 HR TREND......3 DEGREES WARMER.  
MAX HUMIDITY........45-51 PERCENT.  
24 HR TREND......5 PERCENT DRIER.  
HUMIDITY RECOVERY...MODERATE.  
20-FOOT WINDS.......SOUTHWEST WINDS 10 TO 15 MPH AND GUSTY.  
RIDGE TOP WINDS.....SOUTHWEST AROUND 15 MPH.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTHWEST 15 TO 20 MPH.  
MIXING HEIGHT.......400-1600 FT AGL UNTIL 2400, THEN 200 FT AGL.  
SMOKE DISPERSAL.....POOR.  
HAINES INDEX........6 OR HIGH POTENTIAL FOR LARGE PLUME DOMINATED  
FIRE GROWTH.  
   
SUNDAY
 
 
SKY/WEATHER.........MOSTLY SUNNY THEN BECOMING PARTLY CLOUDY.  
MAX TEMPERATURE.....78-83.  
24 HR TREND......UNCHANGED.  
MIN HUMIDITY........8-14 PERCENT.  
24 HR TREND......3 PERCENT WETTER.  
20-FOOT WINDS.......BREEZY. SOUTHWEST WINDS 10 TO 15 MPH WITH GUSTS  
TO AROUND 25 MPH UNTIL 1200, THEN AROUND 25 MPH  
WITH GUSTS TO AROUND 35 MPH.  
RIDGE TOP WINDS.....SOUTHWEST 15 TO 20 MPH UNTIL 1200, THEN AROUND  
30 MPH.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTHWEST AROUND 20 MPH UNTIL 1200, THEN AROUND  
30 MPH.  
MIXING HEIGHT.......0-200 FT AGL UNTIL 1200, THEN 12800-13400 FT  
AGL.  
SMOKE DISPERSAL.....POOR UNTIL 1200, THEN EXCELLENT.  
HAINES INDEX........6 OR HIGH POTENTIAL FOR LARGE PLUME DOMINATED  
FIRE GROWTH.  
 
   
FORECAST DAYS 3 THROUGH 7...
 
   
SUNDAY NIGHT
 
MOSTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS. LOWS  
IN THE LOWER 40S. NORTHWEST WINDS AROUND 10 MPH.    
MONDAY
 
COOLER. PARTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS.  
LOWS IN THE LOWER 40S. HIGHS IN THE MID 60S. NORTHWEST WINDS  
AROUND 10 MPH.    
TUESDAY
 
MOSTLY CLEAR. LOWS IN THE MID 30S. HIGHS IN THE LOWER  
60S. WINDS GENERALLY LESS THAN 10 MPH.    
WEDNESDAY
 
PARTLY CLOUDY. LOWS IN THE UPPER 30S. HIGHS IN THE  
UPPER 60S. NORTHWEST WINDS AROUND 15 MPH.    
THURSDAY
 
PARTLY CLOUDY. LOWS IN THE MID 30S. HIGHS IN THE  
UPPER 60S.    
FRIDAY
 
MOSTLY SUNNY. HIGHS IN THE LOWER 70S.  
 

 
 
WYZ283-221030-  
UPPER WIND RIVER BASIN/WIND RIVER BASIN-  
INCLUDING THE CITIES OF CROWHEART, LANDER, RIVERTON, AND SHOSHONI  
153 PM MDT FRI SEP 21 2018  
 
...RED FLAG WARNING IN EFFECT FROM NOON SATURDAY TO 8 PM MDT  
SUNDAY...  
   
THIS AFTERNOON
 
 
SKY/WEATHER.........SUNNY. SMOKE.  
MAX TEMPERATURE.....69-74.  
24 HR TREND......9 DEGREES WARMER.  
MIN HUMIDITY........13-19 PERCENT.  
24 HR TREND......11 PERCENT DRIER.  
20-FOOT WINDS.......SOUTHWEST WINDS AROUND 10 MPH.  
RIDGE TOP WINDS.....SOUTHWEST AROUND 10 MPH.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....WEST AROUND 15 MPH.  
MIXING HEIGHT.......5800-6800 FT AGL.  
SMOKE DISPERSAL.....GOOD.  
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
TONIGHT
 
 
SKY/WEATHER.........MOSTLY CLEAR. AREAS OF SMOKE IN THE EVENING.  
MIN TEMPERATURE.....42-47.  
24 HR TREND......7 DEGREES WARMER.  
MAX HUMIDITY........45-51 PERCENT.  
24 HR TREND......38 PERCENT DRIER.  
HUMIDITY RECOVERY...MODERATE.  
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 4-7 MPH UNTIL 2100, THEN  
SOUTHWEST AROUND 10 MPH.  
RIDGE TOP WINDS.....SOUTHWEST 10 TO 15 MPH.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTHWEST AROUND 15 MPH.  
MIXING HEIGHT.......1600-2200 FT AGL UNTIL 2400, THEN 200 FT AGL.  
SMOKE DISPERSAL.....POOR.  
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
SATURDAY
 
 
SKY/WEATHER.........MOSTLY SUNNY THEN BECOMING PARTLY CLOUDY THEN  
BECOMING MOSTLY SUNNY.  
MAX TEMPERATURE.....75-80.  
24 HR TREND......6 DEGREES WARMER.  
MIN HUMIDITY........12-18 PERCENT.  
24 HR TREND......3 PERCENT DRIER.  
20-FOOT WINDS.......SOUTHWEST WINDS AROUND 10 MPH UNTIL 0900, THEN  
UPSLOPE/UPVALLEY 5-9 MPH UNTIL 1200, THEN  
SOUTHWEST 10 TO 15 MPH WITH GUSTS TO AROUND 25  
MPH.  
RIDGE TOP WINDS.....SOUTHWEST 10 TO 15 MPH UNTIL 1500, THEN AROUND  
20 MPH.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTHWEST 10 TO 15 MPH UNTIL 1200, THEN AROUND  
25 MPH.  
MIXING HEIGHT.......200 FT AGL UNTIL 1200, THEN 10200-10800 FT AGL.  
SMOKE DISPERSAL.....POOR UNTIL 1200, THEN EXCELLENT.  
HAINES INDEX........6 OR HIGH POTENTIAL FOR LARGE PLUME DOMINATED  
FIRE GROWTH.  
   
SATURDAY NIGHT
 
 
SKY/WEATHER.........MOSTLY CLEAR.  
MIN TEMPERATURE.....44-49.  
24 HR TREND......4 DEGREES WARMER.  
MAX HUMIDITY........46-52 PERCENT.  
24 HR TREND......UNCHANGED.  
HUMIDITY RECOVERY...MODERATE.  
20-FOOT WINDS.......SOUTHWEST WINDS AROUND 10 MPH. GUSTS UP TO 20  
MPH UNTIL 2100.  
RIDGE TOP WINDS.....SOUTHWEST AROUND 15 MPH.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTHWEST AROUND 15 MPH.  
MIXING HEIGHT.......1600-2800 FT AGL UNTIL 2400, THEN 200 FT AGL.  
SMOKE DISPERSAL.....POOR.  
HAINES INDEX........6 OR HIGH POTENTIAL FOR LARGE PLUME DOMINATED  
FIRE GROWTH.  
   
SUNDAY
 
 
SKY/WEATHER.........MOSTLY SUNNY THEN BECOMING PARTLY CLOUDY.  
MAX TEMPERATURE.....72-77.  
24 HR TREND......1 DEGREE COOLER.  
MIN HUMIDITY........15-21 PERCENT.  
24 HR TREND......2 PERCENT WETTER.  
20-FOOT WINDS.......SOUTHWEST WINDS 10 TO 15 MPH WITH GUSTS TO  
AROUND 25 MPH UNTIL 1500, THEN WEST AROUND 20  
MPH WITH GUSTS TO AROUND 30 MPH.  
RIDGE TOP WINDS.....SOUTHWEST 15 TO 20 MPH UNTIL 1500, THEN WEST  
AROUND 25 MPH.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTHWEST 15 TO 20 MPH UNTIL 1200, THEN 25 TO  
30 MPH.  
MIXING HEIGHT.......0-200 FT AGL UNTIL 1200, THEN 12800-13000 FT  
AGL.  
SMOKE DISPERSAL.....POOR UNTIL 1200, THEN EXCELLENT.  
HAINES INDEX........6 OR HIGH POTENTIAL FOR LARGE PLUME DOMINATED  
FIRE GROWTH.  
 
   
FORECAST DAYS 3 THROUGH 7...
 
   
SUNDAY THROUGH MONDAY
 
PARTLY CLOUDY. LOWS IN THE LOWER 40S.  
HIGHS 69 TO 74. NORTH WINDS AROUND 10 MPH.    
TUESDAY
 
MOSTLY CLEAR. LOWS IN THE MID 30S. HIGHS IN THE LOWER  
60S. WINDS GENERALLY LESS THAN 10 MPH.    
WEDNESDAY
 
MOSTLY CLEAR. LOWS IN THE UPPER 30S. HIGHS IN THE  
LOWER 70S. NORTHWEST WINDS AROUND 10 MPH.    
THURSDAY
 
PARTLY CLOUDY. LOWS IN THE MID 30S. HIGHS IN THE  
UPPER 60S.    
FRIDAY
 
MOSTLY SUNNY. HIGHS IN THE MID 70S.  
 

 
 
WYZ285-221030-  
SOUTH BIGHORN MOUNTAINS-  
153 PM MDT FRI SEP 21 2018  
 
...RED FLAG WARNING IN EFFECT FROM NOON SATURDAY TO 8 PM MDT  
SUNDAY...  
   
THIS AFTERNOON
 
 
SKY/WEATHER.........SUNNY.  
MAX TEMPERATURE.....64-69.  
24 HR TREND......14 DEGREES WARMER.  
MIN HUMIDITY........13-19 PERCENT.  
24 HR TREND......35 PERCENT DRIER.  
20-FOOT WINDS.......SOUTHWEST WINDS AROUND 10 MPH WITH HIGHER  
GUSTS.  
RIDGE TOP WINDS.....SOUTHWEST AROUND 15 MPH.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....WEST AROUND 15 MPH.  
MIXING HEIGHT.......6200-7000 FT AGL.  
SMOKE DISPERSAL.....GOOD.  
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
TONIGHT
 
 
SKY/WEATHER.........MOSTLY CLEAR.  
MIN TEMPERATURE.....45-50.  
24 HR TREND......10 DEGREES WARMER.  
MAX HUMIDITY........35-41 PERCENT.  
24 HR TREND......42 PERCENT DRIER.  
HUMIDITY RECOVERY...POOR.  
20-FOOT WINDS.......SOUTHWEST WINDS AROUND 10 MPH WITH GUSTS TO  
AROUND 15 MPH.  
RIDGE TOP WINDS.....SOUTHWEST AROUND 15 MPH.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTHWEST AROUND 15 MPH.  
MIXING HEIGHT.......200-2000 FT AGL.  
SMOKE DISPERSAL.....POOR.  
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
SATURDAY
 
 
SKY/WEATHER.........MOSTLY SUNNY.  
MAX TEMPERATURE.....71-76.  
24 HR TREND......7 DEGREES WARMER.  
MIN HUMIDITY........10-16 PERCENT.  
24 HR TREND......4 PERCENT DRIER.  
20-FOOT WINDS.......WEST WINDS 15 TO 20 MPH. GUSTS UP TO 20 MPH  
UNTIL 1200, THEN 30 MPH.  
RIDGE TOP WINDS.....SOUTHWEST 15 TO 20 MPH UNTIL 1200, THEN WEST  
AROUND 25 MPH.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTHWEST 15 TO 20 MPH UNTIL 1200, THEN WEST 25  
TO 30 MPH.  
MIXING HEIGHT.......200 FT AGL UNTIL 1200, THEN 8800-10000 FT AGL.  
SMOKE DISPERSAL.....POOR UNTIL 1200, THEN EXCELLENT.  
HAINES INDEX........6 OR HIGH POTENTIAL FOR LARGE PLUME DOMINATED  
FIRE GROWTH.  
   
SATURDAY NIGHT
 
 
SKY/WEATHER.........MOSTLY CLEAR.  
MIN TEMPERATURE.....46-51.  
24 HR TREND......3 DEGREES WARMER.  
MAX HUMIDITY........29-35 PERCENT.  
24 HR TREND......7 PERCENT DRIER.  
HUMIDITY RECOVERY...POOR.  
20-FOOT WINDS.......SOUTHWEST WINDS 10 TO 15 MPH AND GUSTY.  
RIDGE TOP WINDS.....SOUTHWEST AROUND 15 MPH.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTHWEST 15 TO 20 MPH.  
MIXING HEIGHT.......1000-1800 FT AGL UNTIL 2400, THEN 200 FT AGL.  
SMOKE DISPERSAL.....POOR.  
HAINES INDEX........6 OR HIGH POTENTIAL FOR LARGE PLUME DOMINATED  
FIRE GROWTH.  
   
SUNDAY
 
 
SKY/WEATHER.........MOSTLY SUNNY THEN BECOMING PARTLY CLOUDY THEN  
BECOMING MOSTLY CLOUDY.  
MAX TEMPERATURE.....70-75.  
24 HR TREND......1 DEGREE COOLER.  
MIN HUMIDITY........13-19 PERCENT.  
24 HR TREND......4 PERCENT WETTER.  
20-FOOT WINDS.......WEST WINDS 15 TO 20 MPH. 30 MPH AFTER 0900.  
RIDGE TOP WINDS.....SOUTHWEST 15 TO 20 MPH UNTIL 1200, THEN WEST  
AROUND 25 MPH.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTHWEST AROUND 20 MPH UNTIL 1200, THEN AROUND  
30 MPH.  
MIXING HEIGHT.......200 FT AGL UNTIL 1200, THEN 11000-12400 FT AGL.  
SMOKE DISPERSAL.....POOR UNTIL 1200, THEN EXCELLENT.  
HAINES INDEX........6 OR HIGH POTENTIAL FOR LARGE PLUME DOMINATED  
FIRE GROWTH.  
 
   
FORECAST DAYS 3 THROUGH 7...
 
   
SUNDAY NIGHT
 
MOSTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AFTER  
MIDNIGHT. LOWS IN THE LOWER 40S. NORTHWEST WINDS AROUND 10 MPH.    
MONDAY
 
COOLER. PARTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS AND  
ISOLATED THUNDERSTORMS. LOWS IN THE LOWER 40S. HIGHS IN THE MID  
50S. NORTHWEST WINDS AROUND 10 MPH.    
TUESDAY
 
MOSTLY CLEAR. LOWS IN THE UPPER 30S. HIGHS IN THE MID  
50S. NORTHWEST WINDS AROUND 10 MPH.    
WEDNESDAY
 
PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS. LOWS IN THE  
UPPER 30S. HIGHS IN THE LOWER 60S. NORTHWEST WINDS AROUND 10 MPH.   
THURSDAY
 
PARTLY CLOUDY. LOWS IN THE MID 30S. HIGHS AROUND 60.    
FRIDAY
 
MOSTLY SUNNY. HIGHS IN THE MID 60S.  
 

 
 
WYZ281-221030-  
JOHNSON COUNTY/CASPER BLM-  
INCLUDING THE CITIES OF BUFFALO AND KAYCEE  
153 PM MDT FRI SEP 21 2018  
 
...RED FLAG WARNING IN EFFECT FROM NOON SATURDAY TO 8 PM MDT  
SUNDAY...  
   
THIS AFTERNOON
 
 
SKY/WEATHER.........SUNNY.  
MAX TEMPERATURE.....67-72.  
24 HR TREND......14 DEGREES WARMER.  
MIN HUMIDITY........18-24 PERCENT.  
24 HR TREND......32 PERCENT DRIER.  
20-FOOT WINDS.......SOUTH WINDS AROUND 10 MPH WITH HIGHER GUSTS.  
RIDGE TOP WINDS.....SOUTH AROUND 15 MPH.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTHWEST AROUND 15 MPH.  
MIXING HEIGHT.......6000-7000 FT AGL.  
SMOKE DISPERSAL.....GOOD TO VERY GOOD.  
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED  
FIRE GROWTH.  
   
TONIGHT
 
 
SKY/WEATHER.........MOSTLY CLEAR.  
MIN TEMPERATURE.....46-51.  
24 HR TREND......10 DEGREES WARMER.  
MAX HUMIDITY........57-63 PERCENT.  
24 HR TREND......31 PERCENT DRIER.  
HUMIDITY RECOVERY...GOOD.  
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 4-7 MPH UNTIL 2100, THEN  
SOUTHWEST AROUND 10 MPH UNTIL 2400, THEN  
DOWNSLOPE/DOWNVALLEY 4-7 MPH UNTIL 0300, THEN  
SOUTHWEST AROUND 10 MPH.  
RIDGE TOP WINDS.....SOUTHWEST 10 TO 15 MPH.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTHWEST 10 TO 15 MPH.  
MIXING HEIGHT.......200-1600 FT AGL.  
SMOKE DISPERSAL.....POOR.  
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
SATURDAY
 
 
SKY/WEATHER.........MOSTLY SUNNY.  
MAX TEMPERATURE.....75-80.  
24 HR TREND......8 DEGREES WARMER.  
MIN HUMIDITY........10-16 PERCENT.  
24 HR TREND......6 PERCENT DRIER.  
20-FOOT WINDS.......WEST WINDS 10 TO 15 MPH. GUSTS UP TO 15 MPH  
UNTIL 1200, THEN 25 MPH.  
RIDGE TOP WINDS.....WEST 15 TO 20 MPH.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTHWEST AROUND 15 MPH UNTIL 1200, THEN WEST  
AROUND 25 MPH.  
MIXING HEIGHT.......200 FT AGL UNTIL 1200, THEN 9400-10600 FT AGL.  
SMOKE DISPERSAL.....POOR UNTIL 1200, THEN EXCELLENT.  
HAINES INDEX........6 OR HIGH POTENTIAL FOR LARGE PLUME DOMINATED  
FIRE GROWTH.  
   
SATURDAY NIGHT
 
 
SKY/WEATHER.........MOSTLY CLEAR.  
MIN TEMPERATURE.....48-53.  
24 HR TREND......1 DEGREE WARMER.  
MAX HUMIDITY........53-59 PERCENT.  
24 HR TREND......6 PERCENT DRIER.  
HUMIDITY RECOVERY...MODERATE.  
20-FOOT WINDS.......WEST WINDS AROUND 10 MPH UNTIL 2100, THEN  
DOWNSLOPE/DOWNVALLEY 4-7 MPH UNTIL 2400, THEN  
SOUTHWEST AROUND 10 MPH. GUSTS UP TO 15 MPH.  
RIDGE TOP WINDS.....SOUTHWEST 10 TO 15 MPH.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTHWEST AROUND 15 MPH.  
MIXING HEIGHT.......200-400 FT AGL UNTIL 2400, THEN 200 FT AGL.  
SMOKE DISPERSAL.....POOR.  
HAINES INDEX........6 OR HIGH POTENTIAL FOR LARGE PLUME DOMINATED  
FIRE GROWTH.  
   
SUNDAY
 
 
SKY/WEATHER.........MOSTLY SUNNY THEN BECOMING PARTLY CLOUDY THEN  
BECOMING MOSTLY CLOUDY.  
MAX TEMPERATURE.....73-78.  
24 HR TREND......2 DEGREES COOLER.  
MIN HUMIDITY........20-26 PERCENT.  
24 HR TREND......6 PERCENT WETTER.  
20-FOOT WINDS.......WEST WINDS 10 TO 15 MPH WITH GUSTS TO AROUND 25  
MPH.  
RIDGE TOP WINDS.....WEST 15 TO 20 MPH.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTHWEST 15 TO 20 MPH UNTIL 1200, THEN WEST 25  
TO 30 MPH.  
MIXING HEIGHT.......200 FT AGL UNTIL 1200, THEN 8000-10000 FT AGL.  
SMOKE DISPERSAL.....POOR UNTIL 1200, THEN EXCELLENT.  
HAINES INDEX........6 OR HIGH POTENTIAL FOR LARGE PLUME DOMINATED  
FIRE GROWTH.  
 
   
FORECAST DAYS 3 THROUGH 7...
 
   
SUNDAY NIGHT
 
MOSTLY CLOUDY. LOWS IN THE LOWER 40S. NORTH WINDS  
AROUND 10 MPH.    
MONDAY
 
COOLER. MOSTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS AND  
ISOLATED THUNDERSTORMS. LOWS IN THE LOWER 40S. HIGHS AROUND 60.  
NORTH WINDS AROUND 10 MPH.    
TUESDAY
 
PARTLY CLOUDY. LOWS IN THE UPPER 30S. HIGHS AROUND 60.  
NORTH WINDS AROUND 10 MPH.    
WEDNESDAY
 
PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS. LOWS IN THE  
UPPER 30S. HIGHS IN THE UPPER 60S. NORTHWEST WINDS AROUND 15 MPH.   
THURSDAY
 
PARTLY CLOUDY. LOWS IN THE MID 30S. HIGHS IN THE  
LOWER 60S.    
FRIDAY
 
MOSTLY SUNNY. HIGHS AROUND 70.  
 

 
 
WYZ282-221030-  
SOUTH BIG HORN BASIN/WORLAND BLM-  
INCLUDING THE CITIES OF TEN SLEEP, THERMOPOLIS, AND WORLAND  
153 PM MDT FRI SEP 21 2018  
   
THIS AFTERNOON
 
 
SKY/WEATHER.........SUNNY.  
MAX TEMPERATURE.....65-70.  
24 HR TREND......13 DEGREES WARMER.  
MIN HUMIDITY........14-20 PERCENT.  
24 HR TREND......30 PERCENT DRIER.  
20-FOOT WINDS.......SOUTHEAST WINDS AROUND 10 MPH.  
RIDGE TOP WINDS.....SOUTHEAST AROUND 15 MPH.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTHWEST AROUND 15 MPH.  
MIXING HEIGHT.......5200-6000 FT AGL.  
SMOKE DISPERSAL.....FAIR TO GOOD.  
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED  
FIRE GROWTH.  
   
TONIGHT
 
 
SKY/WEATHER.........MOSTLY CLEAR.  
MIN TEMPERATURE.....42-47.  
24 HR TREND......8 DEGREES WARMER.  
MAX HUMIDITY........51-57 PERCENT.  
24 HR TREND......33 PERCENT DRIER.  
HUMIDITY RECOVERY...MODERATE.  
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 4-7 MPH. GUSTS UP TO 10  
MPH.  
RIDGE TOP WINDS.....EAST AROUND 10 MPH UNTIL 2100, THEN SOUTH.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTH AROUND 10 MPH.  
MIXING HEIGHT.......200-1800 FT AGL.  
SMOKE DISPERSAL.....POOR.  
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
SATURDAY
 
 
SKY/WEATHER.........MOSTLY SUNNY THEN BECOMING PARTLY CLOUDY THEN  
BECOMING MOSTLY SUNNY THEN BECOMING PARTLY  
CLOUDY THEN BECOMING MOSTLY SUNNY.  
MAX TEMPERATURE.....73-78.  
24 HR TREND......8 DEGREES WARMER.  
MIN HUMIDITY........10-16 PERCENT.  
24 HR TREND......4 PERCENT DRIER.  
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH UNTIL 1200, THEN  
SOUTHWEST 10 TO 15 MPH WITH HIGHER GUSTS.  
RIDGE TOP WINDS.....SOUTHWEST 10 TO 15 MPH.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTH AROUND 10 MPH UNTIL 1200, THEN SOUTHWEST  
AROUND 20 MPH.  
MIXING HEIGHT.......0-200 FT AGL UNTIL 1200, THEN 8800-10000 FT  
AGL.  
SMOKE DISPERSAL.....POOR UNTIL 1200, THEN VERY GOOD TO EXCELLENT.  
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
SATURDAY NIGHT
 
 
SKY/WEATHER.........PARTLY CLOUDY.  
MIN TEMPERATURE.....44-49.  
24 HR TREND......2 DEGREES WARMER.  
MAX HUMIDITY........47-53 PERCENT.  
24 HR TREND......2 PERCENT DRIER.  
HUMIDITY RECOVERY...MODERATE.  
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 4-7 MPH.  
RIDGE TOP WINDS.....SOUTH AROUND 10 MPH.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTH 10 TO 15 MPH.  
MIXING HEIGHT.......200-800 FT AGL UNTIL 2400, THEN 200 FT AGL.  
SMOKE DISPERSAL.....POOR.  
HAINES INDEX........6 OR HIGH POTENTIAL FOR LARGE PLUME DOMINATED  
FIRE GROWTH.  
   
SUNDAY
 
 
SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY CLOUDY.  
MAX TEMPERATURE.....71-76.  
24 HR TREND......2 DEGREES COOLER.  
MIN HUMIDITY........14-20 PERCENT.  
24 HR TREND......5 PERCENT WETTER.  
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH UNTIL 1200, THEN WEST  
AROUND 10 MPH WITH HIGHER GUSTS.  
RIDGE TOP WINDS.....SOUTHWEST AROUND 10 MPH UNTIL 1200, THEN WEST.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTHWEST 15 TO 20 MPH UNTIL 1200, THEN WEST 20  
TO 25 MPH.  
MIXING HEIGHT.......200 FT AGL UNTIL 1200, THEN 7400-9400 FT AGL.  
SMOKE DISPERSAL.....POOR UNTIL 1200, THEN VERY GOOD TO EXCELLENT.  
HAINES INDEX........6 OR HIGH POTENTIAL FOR LARGE PLUME DOMINATED  
FIRE GROWTH.  
 
   
FORECAST DAYS 3 THROUGH 7...
 
   
SUNDAY NIGHT
 
MOSTLY CLOUDY. LOWS IN THE LOWER 40S. NORTHWEST  
WINDS AROUND 10 MPH.    
MONDAY
 
COOLER. PARTLY CLOUDY. LOWS IN THE LOWER 40S. HIGHS IN  
THE LOWER 60S. NORTH WINDS AROUND 10 MPH.    
TUESDAY
 
MOSTLY CLEAR. LOWS IN THE MID 30S. HIGHS AROUND 60.  
WINDS GENERALLY LESS THAN 10 MPH.    
WEDNESDAY
 
PARTLY CLOUDY. LOWS IN THE UPPER 30S. HIGHS IN THE  
UPPER 60S. NORTHWEST WINDS AROUND 10 MPH.    
THURSDAY
 
PARTLY CLOUDY. LOWS IN THE MID 30S. HIGHS IN THE MID  
60S.    
FRIDAY
 
MOSTLY SUNNY. HIGHS IN THE LOWER 70S.  
 

 
 
WYZ275-221030-  
NORTH BIG HORN BASIN/WORLAND BLM-  
INCLUDING THE CITIES OF GREYBULL, LOVELL, AND POWELL  
153 PM MDT FRI SEP 21 2018  
   
THIS AFTERNOON
 
 
SKY/WEATHER.........MOSTLY SUNNY.  
MAX TEMPERATURE.....63-68.  
24 HR TREND......11 DEGREES WARMER.  
MIN HUMIDITY........17-23 PERCENT.  
24 HR TREND......21 PERCENT DRIER.  
20-FOOT WINDS.......SOUTHEAST WINDS AROUND 10 MPH AND GUSTY.  
RIDGE TOP WINDS.....SOUTHEAST AROUND 15 MPH.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTHWEST AROUND 15 MPH.  
MIXING HEIGHT.......3800-4400 FT AGL.  
SMOKE DISPERSAL.....FAIR TO GOOD.  
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED  
FIRE GROWTH.  
   
TONIGHT
 
 
SKY/WEATHER.........MOSTLY CLEAR.  
MIN TEMPERATURE.....43-48.  
24 HR TREND......9 DEGREES WARMER.  
MAX HUMIDITY........52-58 PERCENT.  
24 HR TREND......34 PERCENT DRIER.  
HUMIDITY RECOVERY...MODERATE.  
20-FOOT WINDS.......SOUTHEAST WINDS AROUND 10 MPH.  
RIDGE TOP WINDS.....SOUTHEAST 10 TO 15 MPH.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTHWEST AROUND 20 MPH UNTIL 2100, THEN  
SOUTHEAST.  
MIXING HEIGHT.......200-1200 FT AGL.  
SMOKE DISPERSAL.....POOR.  
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
SATURDAY
 
 
SKY/WEATHER.........MOSTLY SUNNY THEN BECOMING PARTLY CLOUDY.  
MAX TEMPERATURE.....70-75.  
24 HR TREND......7 DEGREES WARMER.  
MIN HUMIDITY........14-20 PERCENT.  
24 HR TREND......3 PERCENT DRIER.  
20-FOOT WINDS.......SOUTHEAST WINDS 10 TO 15 MPH. 20 MPH AFTER  
1200.  
RIDGE TOP WINDS.....SOUTHEAST AROUND 15 MPH.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTHWEST 15 TO 20 MPH.  
MIXING HEIGHT.......200 FT AGL UNTIL 1200, THEN 4400-6400 FT AGL.  
SMOKE DISPERSAL.....POOR UNTIL 1200, THEN GOOD TO VERY GOOD.  
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
SATURDAY NIGHT
 
 
SKY/WEATHER.........PARTLY CLOUDY.  
MIN TEMPERATURE.....44-49.  
24 HR TREND......2 DEGREES WARMER.  
MAX HUMIDITY........52-58 PERCENT.  
24 HR TREND......UNCHANGED.  
HUMIDITY RECOVERY...MODERATE.  
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 4-7 MPH.  
RIDGE TOP WINDS.....SOUTH AROUND 10 MPH.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTH 10 TO 15 MPH.  
MIXING HEIGHT.......200 FT AGL UNTIL 2400, THEN 200 FT AGL.  
SMOKE DISPERSAL.....POOR.  
HAINES INDEX........6 OR HIGH POTENTIAL FOR LARGE PLUME DOMINATED  
FIRE GROWTH.  
   
SUNDAY
 
 
SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY CLOUDY.  
MAX TEMPERATURE.....65-70.  
24 HR TREND......6 DEGREES COOLER.  
MIN HUMIDITY........20-26 PERCENT.  
24 HR TREND......7 PERCENT WETTER.  
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH UNTIL 1500, THEN  
NORTHWEST AROUND 10 MPH AND GUSTY.  
RIDGE TOP WINDS.....SOUTH AROUND 10 MPH UNTIL 1200, THEN NORTHWEST.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTHWEST AROUND 15 MPH UNTIL 1500, THEN WEST.  
MIXING HEIGHT.......200-400 FT AGL UNTIL 1200, THEN 2600-3800 FT  
AGL.  
SMOKE DISPERSAL.....POOR.  
HAINES INDEX........6 OR HIGH POTENTIAL FOR LARGE PLUME DOMINATED  
FIRE GROWTH.  
 
   
FORECAST DAYS 3 THROUGH 7...
 
   
SUNDAY NIGHT
 
MOSTLY CLOUDY. SLIGHT CHANCE OF SHOWERS IN THE  
EVENING. LOWS IN THE LOWER 40S. NORTHWEST WINDS AROUND 10 MPH.    
MONDAY
 
COOLER. PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS. LOWS  
IN THE LOWER 40S. HIGHS IN THE UPPER 50S. NORTHWEST WINDS AROUND  
10 MPH.    
TUESDAY
 
MOSTLY CLEAR. LOWS IN THE UPPER 30S. HIGHS IN THE  
UPPER 50S. WINDS GENERALLY LESS THAN 10 MPH.    
WEDNESDAY
 
PARTLY CLOUDY. LOWS IN THE UPPER 30S. HIGHS IN THE  
MID 60S. NORTH WINDS AROUND 10 MPH.    
THURSDAY THROUGH FRIDAY
 
PARTLY CLOUDY. LOWS IN THE MID 30S.  
HIGHS 63 TO 68.  
 

 
 
WYZ276-221030-  
CODY FOOTHILLS-  
INCLUDING THE CITIES OF CLARK, CODY, AND MEETEETSE  
153 PM MDT FRI SEP 21 2018  
   
THIS AFTERNOON
 
 
SKY/WEATHER.........MOSTLY SUNNY THEN BECOMING PARTLY CLOUDY THEN  
BECOMING MOSTLY SUNNY.  
MAX TEMPERATURE.....66-71.  
24 HR TREND......10 DEGREES WARMER.  
MIN HUMIDITY........15-21 PERCENT.  
24 HR TREND......17 PERCENT DRIER.  
20-FOOT WINDS.......SOUTH WINDS AROUND 10 MPH AND GUSTY.  
RIDGE TOP WINDS.....SOUTH AROUND 15 MPH.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTHWEST AROUND 20 MPH.  
MIXING HEIGHT.......6400-7800 FT AGL.  
SMOKE DISPERSAL.....GOOD TO VERY GOOD.  
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED  
FIRE GROWTH.  
   
TONIGHT
 
 
SKY/WEATHER.........MOSTLY CLEAR.  
MIN TEMPERATURE.....45-50.  
24 HR TREND......12 DEGREES WARMER.  
MAX HUMIDITY........52-58 PERCENT.  
24 HR TREND......41 PERCENT DRIER.  
HUMIDITY RECOVERY...MODERATE.  
20-FOOT WINDS.......SOUTHWEST WINDS AROUND 10 MPH WITH GUSTS TO  
AROUND 15 MPH.  
RIDGE TOP WINDS.....SOUTHWEST AROUND 15 MPH.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTHWEST 15 TO 20 MPH.  
MIXING HEIGHT.......1800-2600 FT AGL UNTIL 2400, THEN 200 FT AGL.  
SMOKE DISPERSAL.....POOR.  
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
SATURDAY
 
 
SKY/WEATHER.........MOSTLY SUNNY THEN BECOMING PARTLY CLOUDY.  
MAX TEMPERATURE.....72-77.  
24 HR TREND......6 DEGREES WARMER.  
MIN HUMIDITY........14-20 PERCENT.  
24 HR TREND......5 PERCENT DRIER.  
20-FOOT WINDS.......SOUTHWEST WINDS 10 TO 15 MPH. GUSTS UP TO 20  
MPH UNTIL 1500, THEN 25 MPH.  
RIDGE TOP WINDS.....SOUTHWEST 15 TO 20 MPH.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTHWEST AROUND 15 MPH UNTIL 1200, THEN WEST  
25 TO 30 MPH.  
MIXING HEIGHT.......200 FT AGL UNTIL 1200, THEN 10600-11200 FT AGL.  
SMOKE DISPERSAL.....POOR UNTIL 1200, THEN EXCELLENT.  
HAINES INDEX........6 OR HIGH POTENTIAL FOR LARGE PLUME DOMINATED  
FIRE GROWTH.  
   
SATURDAY NIGHT
 
 
SKY/WEATHER.........PARTLY CLOUDY.  
MIN TEMPERATURE.....43-48.  
24 HR TREND......1 DEGREE COOLER.  
MAX HUMIDITY........56-62 PERCENT.  
24 HR TREND......8 PERCENT WETTER.  
HUMIDITY RECOVERY...MODERATE.  
20-FOOT WINDS.......SOUTHWEST WINDS AROUND 10 MPH UNTIL 2100, THEN  
DOWNSLOPE/DOWNVALLEY 4-7 MPH UNTIL 2400, THEN  
SOUTHWEST AROUND 10 MPH UNTIL 0300, THEN  
DOWNSLOPE/DOWNVALLEY 4-7 MPH. GUSTS UP TO 15  
MPH.  
RIDGE TOP WINDS.....WEST 10 TO 15 MPH.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....WEST 15 TO 20 MPH.  
MIXING HEIGHT.......200-1200 FT AGL UNTIL 2400, THEN 200 FT AGL.  
SMOKE DISPERSAL.....POOR.  
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
SUNDAY
 
 
SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY CLOUDY.  
MAX TEMPERATURE.....67-72.  
24 HR TREND......6 DEGREES COOLER.  
MIN HUMIDITY........19-25 PERCENT.  
24 HR TREND......7 PERCENT WETTER.  
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH UNTIL 1200, THEN  
NORTHWEST 10 TO 15 MPH WITH HIGHER GUSTS.  
RIDGE TOP WINDS.....NORTHWEST 10 TO 15 MPH UNTIL 1500, THEN AROUND  
20 MPH.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....WEST AROUND 15 MPH UNTIL 1200, THEN AROUND 25  
MPH.  
MIXING HEIGHT.......200 FT AGL UNTIL 1200, THEN 9200-11200 FT AGL.  
SMOKE DISPERSAL.....POOR UNTIL 1200, THEN EXCELLENT.  
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
 
   
FORECAST DAYS 3 THROUGH 7...
 
   
SUNDAY NIGHT
 
MOSTLY CLOUDY. SLIGHT CHANCE OF SHOWERS IN THE  
EVENING. LOWS IN THE UPPER 30S. NORTHWEST WINDS AROUND 10 MPH.    
MONDAY
 
COOLER. PARTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS.  
LOWS IN THE UPPER 30S. HIGHS IN THE MID 50S. NORTH WINDS AROUND  
10 MPH.    
TUESDAY THROUGH WEDNESDAY
 
PARTLY CLOUDY. LOWS 35 TO 40. HIGHS  
56 TO 61. NORTHWEST WINDS AROUND 10 MPH.    
THURSDAY THROUGH FRIDAY
 
PARTLY CLOUDY. LOWS IN THE MID 30S.  
HIGHS 59 TO 64.  
 

 
 
WYZ287-221030-  
OWL CREEK MOUNTAINS-  
153 PM MDT FRI SEP 21 2018  
   
THIS AFTERNOON
 
 
SKY/WEATHER.........SUNNY.  
MAX TEMPERATURE.....65-70.  
24 HR TREND......13 DEGREES WARMER.  
MIN HUMIDITY........11-17 PERCENT.  
24 HR TREND......37 PERCENT DRIER.  
20-FOOT WINDS.......SOUTHWEST WINDS AROUND 10 MPH AND GUSTY.  
RIDGE TOP WINDS.....SOUTH AROUND 15 MPH.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTHWEST AROUND 15 MPH.  
MIXING HEIGHT.......6600-7600 FT AGL.  
SMOKE DISPERSAL.....GOOD TO VERY GOOD.  
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED  
FIRE GROWTH.  
   
TONIGHT
 
 
SKY/WEATHER.........MOSTLY CLEAR.  
MIN TEMPERATURE.....45-50.  
24 HR TREND......11 DEGREES WARMER.  
MAX HUMIDITY........37-43 PERCENT.  
24 HR TREND......51 PERCENT DRIER.  
HUMIDITY RECOVERY...POOR.  
20-FOOT WINDS.......SOUTHWEST WINDS AROUND 10 MPH WITH GUSTS TO  
AROUND 15 MPH.  
RIDGE TOP WINDS.....SOUTHWEST AROUND 15 MPH.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTHWEST AROUND 15 MPH.  
MIXING HEIGHT.......2000-2600 FT AGL UNTIL 2400, THEN 200 FT AGL.  
SMOKE DISPERSAL.....POOR.  
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
SATURDAY
 
 
SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY SUNNY.  
MAX TEMPERATURE.....72-77.  
24 HR TREND......6 DEGREES WARMER.  
MIN HUMIDITY........10-16 PERCENT.  
24 HR TREND......3 PERCENT DRIER.  
20-FOOT WINDS.......SOUTHWEST WINDS 10 TO 15 MPH. GUSTS UP TO 15  
MPH UNTIL 1200, THEN 25 MPH.  
RIDGE TOP WINDS.....SOUTHWEST 15 TO 20 MPH.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTHWEST AROUND 15 MPH UNTIL 1200, THEN WEST  
AROUND 25 MPH.  
MIXING HEIGHT.......200 FT AGL UNTIL 1200, THEN 9400-10200 FT AGL.  
SMOKE DISPERSAL.....POOR UNTIL 1200, THEN EXCELLENT.  
HAINES INDEX........6 OR HIGH POTENTIAL FOR LARGE PLUME DOMINATED  
FIRE GROWTH.  
   
SATURDAY NIGHT
 
 
SKY/WEATHER.........MOSTLY CLEAR.  
MIN TEMPERATURE.....45-50.  
24 HR TREND......1 DEGREE WARMER.  
MAX HUMIDITY........35-41 PERCENT.  
24 HR TREND......2 PERCENT DRIER.  
HUMIDITY RECOVERY...POOR.  
20-FOOT WINDS.......SOUTHWEST WINDS AROUND 10 MPH AND GUSTY.  
RIDGE TOP WINDS.....SOUTHWEST AROUND 15 MPH.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTHWEST AROUND 15 MPH.  
MIXING HEIGHT.......600-1400 FT AGL UNTIL 2400, THEN 200 FT AGL.  
SMOKE DISPERSAL.....POOR.  
HAINES INDEX........6 OR HIGH POTENTIAL FOR LARGE PLUME DOMINATED  
FIRE GROWTH.  
   
SUNDAY
 
 
SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY CLOUDY.  
MAX TEMPERATURE.....69-74.  
24 HR TREND......3 DEGREES COOLER.  
MIN HUMIDITY........14-20 PERCENT.  
24 HR TREND......4 PERCENT WETTER.  
20-FOOT WINDS.......WEST WINDS 10 TO 15 MPH. GUSTS UP TO 20 MPH  
UNTIL 1500, THEN 25 MPH.  
RIDGE TOP WINDS.....WEST 15 TO 20 MPH.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTHWEST 15 TO 20 MPH UNTIL 1200, THEN WEST  
AROUND 25 MPH.  
MIXING HEIGHT.......0-200 FT AGL UNTIL 1200, THEN 12800-13400 FT  
AGL.  
SMOKE DISPERSAL.....POOR UNTIL 1200, THEN EXCELLENT.  
HAINES INDEX........6 OR HIGH POTENTIAL FOR LARGE PLUME DOMINATED  
FIRE GROWTH.  
 
   
FORECAST DAYS 3 THROUGH 7...
 
   
SUNDAY NIGHT
 
PARTLY CLOUDY. LOWS IN THE LOWER 40S. NORTHWEST  
WINDS AROUND 10 MPH.    
MONDAY
 
COOLER. PARTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS.  
LOWS IN THE LOWER 40S. HIGHS IN THE UPPER 50S. NORTH WINDS AROUND  
10 MPH.    
TUESDAY
 
MOSTLY CLEAR. LOWS IN THE UPPER 30S. HIGHS IN THE MID  
50S. WINDS GENERALLY LESS THAN 10 MPH.    
WEDNESDAY
 
MOSTLY CLEAR. LOWS IN THE UPPER 30S. HIGHS IN THE  
MID 60S. NORTHWEST WINDS AROUND 10 MPH.    
THURSDAY
 
PARTLY CLOUDY. LOWS IN THE UPPER 30S. HIGHS IN THE  
LOWER 60S.    
FRIDAY
 
MOSTLY SUNNY. HIGHS IN THE MID 60S.  
 

 
 
WYZ286-221030-  
ABSAROKA MOUNTAINS/NORTH SHOSHONE NF-  
INCLUDING THE CITY OF PAHASKA  
153 PM MDT FRI SEP 21 2018  
   
THIS AFTERNOON
 
 
SKY/WEATHER.........MOSTLY SUNNY.  
MAX TEMPERATURE.....59-64.  
24 HR TREND......9 DEGREES WARMER.  
MIN HUMIDITY........19-25 PERCENT.  
24 HR TREND......14 PERCENT DRIER.  
20-FOOT WINDS.......WEST WINDS AROUND 15 MPH WITH GUSTS TO AROUND  
25 MPH.  
RIDGE TOP WINDS.....WEST AROUND 20 MPH.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....WEST AROUND 25 MPH.  
MIXING HEIGHT.......6600-7400 FT AGL.  
SMOKE DISPERSAL.....VERY GOOD.  
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED  
FIRE GROWTH.  
   
TONIGHT
 
 
SKY/WEATHER.........MOSTLY CLEAR.  
MIN TEMPERATURE.....38-43.  
24 HR TREND......8 DEGREES WARMER.  
MAX HUMIDITY........48-54 PERCENT.  
24 HR TREND......20 PERCENT DRIER.  
HUMIDITY RECOVERY...MODERATE.  
20-FOOT WINDS.......WEST WINDS 10 TO 15 MPH AND GUSTY.  
RIDGE TOP WINDS.....WEST 15 TO 20 MPH.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....WEST AROUND 25 MPH UNTIL 2100, THEN 15 TO 20  
MPH.  
MIXING HEIGHT.......2600-3000 FT AGL UNTIL 2400, THEN 200 FT AGL.  
SMOKE DISPERSAL.....POOR.  
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
SATURDAY
 
 
SKY/WEATHER.........MOSTLY SUNNY THEN BECOMING PARTLY CLOUDY THEN  
BECOMING MOSTLY SUNNY.  
MAX TEMPERATURE.....63-68.  
24 HR TREND......5 DEGREES WARMER.  
MIN HUMIDITY........15-21 PERCENT.  
24 HR TREND......3 PERCENT DRIER.  
20-FOOT WINDS.......WEST WINDS 15 TO 20 MPH. GUSTS UP TO 20 MPH  
UNTIL 1200, THEN 35 MPH.  
RIDGE TOP WINDS.....WEST 20 TO 25 MPH.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....WEST AROUND 20 MPH UNTIL 1200, THEN AROUND 30  
MPH.  
MIXING HEIGHT.......200 FT AGL UNTIL 1200, THEN 8200-9000 FT AGL.  
SMOKE DISPERSAL.....POOR UNTIL 1200, THEN EXCELLENT.  
HAINES INDEX........6 OR HIGH POTENTIAL FOR LARGE PLUME DOMINATED  
FIRE GROWTH.  
   
SATURDAY NIGHT
 
 
SKY/WEATHER.........PARTLY CLOUDY.  
MIN TEMPERATURE.....39-44.  
24 HR TREND......2 DEGREES WARMER.  
MAX HUMIDITY........45-51 PERCENT.  
24 HR TREND......1 PERCENT DRIER.  
HUMIDITY RECOVERY...MODERATE.  
20-FOOT WINDS.......WEST WINDS 10 TO 15 MPH AND GUSTY.  
RIDGE TOP WINDS.....WEST AROUND 15 MPH.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....WEST AROUND 30 MPH UNTIL 2100, THEN SOUTHWEST  
15 TO 20 MPH.  
MIXING HEIGHT.......2600-3600 FT AGL UNTIL 2400, THEN 200 FT AGL.  
SMOKE DISPERSAL.....FAIR TO GOOD UNTIL 2400, THEN POOR.  
HAINES INDEX........6 OR HIGH POTENTIAL FOR LARGE PLUME DOMINATED  
FIRE GROWTH.  
   
SUNDAY
 
 
SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY CLOUDY.  
SLIGHT CHANCE OF RAIN SHOWERS IN THE AFTERNOON.  
SLIGHT CHANCE OF THUNDERSTORMS LATE IN THE  
AFTERNOON. CHANCE OF PRECIPITATION 20 PERCENT.  
MAX TEMPERATURE.....57-62.  
24 HR TREND......5 DEGREES COOLER.  
MIN HUMIDITY........21-27 PERCENT.  
24 HR TREND......5 PERCENT WETTER.  
20-FOOT WINDS.......WEST WINDS AROUND 10 MPH WITH HIGHER GUSTS  
UNTIL 1200, THEN AROUND 20 MPH WITH GUSTS TO  
AROUND 30 MPH.  
RIDGE TOP WINDS.....WEST AROUND 15 MPH UNTIL 1200, THEN AROUND 25  
MPH.  
LAL.................1 UNTIL 1200, THEN 2.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTHWEST AROUND 15 MPH UNTIL 1200, THEN WEST  
AROUND 30 MPH.  
MIXING HEIGHT.......200-400 FT AGL UNTIL 1200, THEN 10200-11200 FT  
AGL.  
SMOKE DISPERSAL.....POOR UNTIL 1200, THEN EXCELLENT.  
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
 
   
FORECAST DAYS 3 THROUGH 7...
 
   
SUNDAY NIGHT
 
PARTLY CLOUDY. CHANCE OF SNOW SHOWERS, SLIGHT  
CHANCE OF SHOWERS AND THUNDERSTORMS IN THE EVENING, THEN SLIGHT  
CHANCE OF SNOW SHOWERS AFTER MIDNIGHT. LOWS IN THE MID 30S. WEST  
WINDS AROUND 10 MPH.    
MONDAY
 
COOLER. PARTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS,  
SNOW SHOWERS AND ISOLATED THUNDERSTORMS. LOWS IN THE MID 30S.  
HIGHS IN THE UPPER 40S. NORTHWEST WINDS AROUND 10 MPH.    
TUESDAY
 
MOSTLY CLEAR. LOWS IN THE LOWER 30S. HIGHS IN THE  
LOWER 50S. WINDS GENERALLY LESS THAN 10 MPH.    
WEDNESDAY
 
PARTLY CLOUDY. LOWS IN THE LOWER 30S. HIGHS IN THE  
UPPER 50S. NORTHWEST WINDS AROUND 10 MPH.    
THURSDAY
 
PARTLY CLOUDY. LOWS IN THE LOWER 30S. HIGHS IN THE  
MID 50S.    
FRIDAY
 
MOSTLY SUNNY. HIGHS IN THE UPPER 50S.  
 

 
 
WYZ140-221030-  
YELLOWSTONE NATIONAL PARK-  
INCLUDING THE CITIES OF LAKE, MAMMOTH, AND OLD FAITHFUL  
153 PM MDT FRI SEP 21 2018  
   
THIS AFTERNOON
 
 
SKY/WEATHER.........MOSTLY SUNNY.  
MAX TEMPERATURE.....59-64.  
24 HR TREND......8 DEGREES WARMER.  
MIN HUMIDITY........17-23 PERCENT.  
24 HR TREND......12 PERCENT DRIER.  
20-FOOT WINDS.......SOUTHWEST WINDS AROUND 15 MPH WITH HIGHER  
GUSTS.  
RIDGE TOP WINDS.....SOUTHWEST AROUND 20 MPH.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTHWEST AROUND 25 MPH.  
MIXING HEIGHT.......5200-6000 FT AGL.  
SMOKE DISPERSAL.....VERY GOOD.  
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED  
FIRE GROWTH.  
   
TONIGHT
 
 
SKY/WEATHER.........MOSTLY CLEAR.  
MIN TEMPERATURE.....28-33.  
24 HR TREND......4 DEGREES WARMER.  
MAX HUMIDITY........63-69 PERCENT.  
24 HR TREND......13 PERCENT DRIER.  
HUMIDITY RECOVERY...GOOD.  
20-FOOT WINDS.......SOUTH WINDS AROUND 10 MPH. GUSTS UP TO 20 MPH  
UNTIL 2100.  
RIDGE TOP WINDS.....SOUTH AROUND 15 MPH.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTH 15 TO 20 MPH.  
MIXING HEIGHT.......2000-2200 FT AGL UNTIL 2400, THEN 200 FT AGL.  
SMOKE DISPERSAL.....POOR.  
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED  
FIRE GROWTH.  
   
SATURDAY
 
 
SKY/WEATHER.........MOSTLY SUNNY THEN BECOMING PARTLY CLOUDY.  
WIDESPREAD FROST EARLY IN THE MORNING.  
MAX TEMPERATURE.....63-68.  
24 HR TREND......5 DEGREES WARMER.  
MIN HUMIDITY........18-24 PERCENT.  
24 HR TREND......4 PERCENT DRIER.  
20-FOOT WINDS.......SOUTH WINDS AROUND 10 MPH AND GUSTY UNTIL 1200,  
THEN SOUTHWEST AROUND 20 MPH WITH GUSTS TO  
AROUND 35 MPH.  
RIDGE TOP WINDS.....SOUTH AROUND 15 MPH UNTIL 1200, THEN SOUTHWEST  
AROUND 25 MPH.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTH AROUND 15 MPH UNTIL 1200, THEN SOUTHWEST  
AROUND 30 MPH.  
MIXING HEIGHT.......200 FT AGL UNTIL 1200, THEN 7800-8200 FT AGL.  
SMOKE DISPERSAL.....POOR UNTIL 1200, THEN EXCELLENT.  
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
SATURDAY NIGHT
 
 
SKY/WEATHER.........PARTLY CLOUDY.  
MIN TEMPERATURE.....33-38.  
24 HR TREND......6 DEGREES WARMER.  
MAX HUMIDITY........61-67 PERCENT.  
24 HR TREND......6 PERCENT DRIER.  
HUMIDITY RECOVERY...GOOD.  
20-FOOT WINDS.......SOUTHWEST WINDS 10 TO 15 MPH AND GUSTY UNTIL  
0300, THEN DOWNSLOPE/DOWNVALLEY 4-7 MPH.  
RIDGE TOP WINDS.....SOUTHWEST 15 TO 20 MPH UNTIL 0300, THEN SOUTH  
AROUND 10 MPH.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTHWEST AROUND 30 MPH UNTIL 2100. SOUTH  
AROUND 10 MPH AFTER 0300.  
MIXING HEIGHT.......2400-3000 FT AGL UNTIL 2400, THEN 200 FT AGL.  
SMOKE DISPERSAL.....FAIR TO GOOD UNTIL 2400, THEN POOR.  
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
SUNDAY
 
 
SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY CLOUDY.  
SLIGHT CHANCE OF RAIN SHOWERS IN THE AFTERNOON.  
SLIGHT CHANCE OF THUNDERSTORMS LATE IN THE  
AFTERNOON. CHANCE OF PRECIPITATION 20 PERCENT.  
MAX TEMPERATURE.....55-60.  
24 HR TREND......7 DEGREES COOLER.  
MIN HUMIDITY........24-30 PERCENT.  
24 HR TREND......6 PERCENT WETTER.  
20-FOOT WINDS.......SOUTHWEST WINDS 10 TO 15 MPH. GUSTS UP TO 15  
MPH UNTIL 1200, THEN 25 MPH.  
RIDGE TOP WINDS.....SOUTHWEST 15 TO 20 MPH.  
LAL.................1 UNTIL 1200, THEN 2.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTHWEST 15 TO 20 MPH UNTIL 1200, THEN AROUND  
30 MPH.  
MIXING HEIGHT.......200-400 FT AGL UNTIL 1200, THEN 8400-9600 FT  
AGL.  
SMOKE DISPERSAL.....POOR UNTIL 1200, THEN EXCELLENT.  
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
 
   
FORECAST DAYS 3 THROUGH 7...
 
   
SUNDAY NIGHT
 
MOSTLY CLOUDY. CHANCE OF SHOWERS, SNOW SHOWERS  
AND SLIGHT CHANCE OF THUNDERSTORMS IN THE EVENING, THEN SLIGHT  
CHANCE OF SNOW SHOWERS AFTER MIDNIGHT. LOWS IN THE UPPER 20S.  
WINDS GENERALLY LESS THAN 10 MPH.    
MONDAY
 
PARTLY CLOUDY. LOWS IN THE UPPER 20S. HIGHS IN THE  
UPPER 40S. WEST WINDS AROUND 10 MPH.    
TUESDAY THROUGH WEDNESDAY
 
MOSTLY CLEAR. LOWS 24 TO 29. HIGHS  
53 TO 58. WEST WINDS AROUND 10 MPH.    
THURSDAY THROUGH FRIDAY
 
MOSTLY CLEAR. LOWS IN THE UPPER 20S.  
HIGHS 56 TO 61.  
 

 
 
WYZ415-221030-  
NORTH ZONE BRIDGER TETON NF AND GRAND TETON NP-  
INCLUDING THE CITIES OF JACKSON AND MORAN  
153 PM MDT FRI SEP 21 2018  
 
...RED FLAG WARNING IN EFFECT FROM NOON SATURDAY TO 8 PM MDT  
SUNDAY...  
   
THIS AFTERNOON
 
 
SKY/WEATHER.........SUNNY.  
MAX TEMPERATURE.....59-64.  
24 HR TREND......7 DEGREES WARMER.  
MIN HUMIDITY........17-23 PERCENT.  
24 HR TREND......8 PERCENT DRIER.  
20-FOOT WINDS.......SOUTHWEST WINDS AROUND 15 MPH WITH HIGHER  
GUSTS.  
RIDGE TOP WINDS.....SOUTHWEST AROUND 15 MPH.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTHWEST AROUND 20 MPH.  
MIXING HEIGHT.......6800-7600 FT AGL.  
SMOKE DISPERSAL.....VERY GOOD.  
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED  
FIRE GROWTH.  
   
TONIGHT
 
 
SKY/WEATHER.........MOSTLY CLEAR.  
MIN TEMPERATURE.....30-35.  
24 HR TREND......5 DEGREES WARMER.  
MAX HUMIDITY........60-66 PERCENT.  
24 HR TREND......11 PERCENT DRIER.  
HUMIDITY RECOVERY...GOOD.  
20-FOOT WINDS.......WEST WINDS AROUND 10 MPH UNTIL 2100, THEN  
DOWNSLOPE/DOWNVALLEY 4-7 MPH UNTIL 2400, THEN  
SOUTH AROUND 10 MPH UNTIL 0300, THEN  
DOWNSLOPE/DOWNVALLEY 4-7 MPH. GUSTS UP TO 15  
MPH.  
RIDGE TOP WINDS.....SOUTH 10 TO 15 MPH.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTHWEST AROUND 20 MPH UNTIL 2100, THEN SOUTH  
10 TO 15 MPH.  
MIXING HEIGHT.......3000-3400 FT AGL UNTIL 2400, THEN 200 FT AGL.  
SMOKE DISPERSAL.....POOR.  
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
SATURDAY
 
 
SKY/WEATHER.........MOSTLY SUNNY.  
MAX TEMPERATURE.....64-69.  
24 HR TREND......5 DEGREES WARMER.  
MIN HUMIDITY........16-22 PERCENT.  
24 HR TREND......3 PERCENT DRIER.  
20-FOOT WINDS.......SOUTHWEST WINDS 10 TO 15 MPH WITH GUSTS TO  
AROUND 25 MPH UNTIL 1500, THEN AROUND 20 MPH  
WITH GUSTS TO AROUND 30 MPH.  
RIDGE TOP WINDS.....SOUTHWEST 15 TO 20 MPH UNTIL 1500, THEN AROUND  
25 MPH.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTH AROUND 15 MPH UNTIL 1200, THEN SOUTHWEST  
25 TO 30 MPH.  
MIXING HEIGHT.......0-200 FT AGL UNTIL 1200, THEN 9000-10000 FT  
AGL.  
SMOKE DISPERSAL.....POOR UNTIL 1200, THEN EXCELLENT.  
HAINES INDEX........6 OR HIGH POTENTIAL FOR LARGE PLUME DOMINATED  
FIRE GROWTH.  
   
SATURDAY NIGHT
 
 
SKY/WEATHER.........PARTLY CLOUDY.  
MIN TEMPERATURE.....36-41.  
24 HR TREND......6 DEGREES WARMER.  
MAX HUMIDITY........59-65 PERCENT.  
24 HR TREND......3 PERCENT DRIER.  
HUMIDITY RECOVERY...GOOD.  
20-FOOT WINDS.......SOUTHWEST WINDS AROUND 10 MPH AND GUSTY UNTIL  
2100, THEN DOWNSLOPE/DOWNVALLEY 4-7 MPH UNTIL  
2400, THEN SOUTH AROUND 10 MPH.  
RIDGE TOP WINDS.....SOUTH 10 TO 15 MPH.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....WEST AROUND 30 MPH UNTIL 2100, THEN SOUTH  
AROUND 15 MPH.  
MIXING HEIGHT.......3800-4600 FT AGL UNTIL 2400, THEN 200 FT AGL.  
SMOKE DISPERSAL.....GOOD UNTIL 2400, THEN POOR.  
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
SUNDAY
 
 
SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY CLOUDY.  
MAX TEMPERATURE.....59-64.  
24 HR TREND......6 DEGREES COOLER.  
MIN HUMIDITY........22-28 PERCENT.  
24 HR TREND......6 PERCENT WETTER.  
20-FOOT WINDS.......SOUTHWEST WINDS 10 TO 15 MPH. GUSTS UP TO 15  
MPH UNTIL 1200, THEN 25 MPH.  
RIDGE TOP WINDS.....SOUTHWEST 15 TO 20 MPH.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTHWEST AROUND 15 MPH UNTIL 1200, THEN 25 TO  
30 MPH.  
MIXING HEIGHT.......200-400 FT AGL UNTIL 1200, THEN 10400-11400 FT  
AGL.  
SMOKE DISPERSAL.....POOR UNTIL 1200, THEN EXCELLENT.  
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
 
   
FORECAST DAYS 3 THROUGH 7...
 
   
SUNDAY THROUGH MONDAY
 
PARTLY CLOUDY. LOWS IN THE LOWER 30S.  
HIGHS 54 TO 59. WEST WINDS AROUND 10 MPH.    
TUESDAY THROUGH WEDNESDAY
 
MOSTLY CLEAR. LOWS IN THE UPPER 20S.  
HIGHS 55 TO 60. WEST WINDS AROUND 10 MPH.    
THURSDAY THROUGH FRIDAY
 
MOSTLY CLEAR. LOWS AROUND 30. HIGHS  
59 TO 64.  
 

 
 
WYZ416-221030-  
WEST WIND RIVER MOUNTAINS/EAST ZONE BRIDGER TETON NF-  
153 PM MDT FRI SEP 21 2018  
 
...RED FLAG WARNING IN EFFECT FROM NOON SATURDAY TO 8 PM MDT  
SUNDAY...  
   
THIS AFTERNOON
 
 
SKY/WEATHER.........MOSTLY SUNNY. SMOKE.  
MAX TEMPERATURE.....56-61.  
24 HR TREND......6 DEGREES WARMER.  
MIN HUMIDITY........12-18 PERCENT.  
24 HR TREND......5 PERCENT DRIER.  
20-FOOT WINDS.......SOUTHWEST WINDS AROUND 15 MPH WITH HIGHER  
GUSTS.  
RIDGE TOP WINDS.....SOUTHWEST AROUND 20 MPH.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....WEST AROUND 20 MPH.  
MIXING HEIGHT.......5800-6400 FT AGL.  
SMOKE DISPERSAL.....GOOD TO VERY GOOD.  
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED  
FIRE GROWTH.  
   
TONIGHT
 
 
SKY/WEATHER.........MOSTLY CLEAR. AREAS OF SMOKE IN THE EVENING.  
MIN TEMPERATURE.....34-39.  
24 HR TREND......9 DEGREES WARMER.  
MAX HUMIDITY........44-50 PERCENT.  
24 HR TREND......6 PERCENT DRIER.  
HUMIDITY RECOVERY...MODERATE.  
20-FOOT WINDS.......WEST WINDS AROUND 10 MPH UNTIL 2100, THEN  
DOWNSLOPE/DOWNVALLEY 4-7 MPH. GUSTS UP TO 15  
MPH.  
RIDGE TOP WINDS.....SOUTHWEST 10 TO 15 MPH.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTHWEST AROUND 20 MPH UNTIL 2100, THEN AROUND  
10 MPH.  
MIXING HEIGHT.......2000-2600 FT AGL UNTIL 2400, THEN 200 FT AGL.  
SMOKE DISPERSAL.....POOR.  
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
SATURDAY
 
 
SKY/WEATHER.........MOSTLY SUNNY.  
MAX TEMPERATURE.....61-66.  
24 HR TREND......5 DEGREES WARMER.  
MIN HUMIDITY........16-22 PERCENT.  
24 HR TREND......2 PERCENT DRIER.  
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH UNTIL 0900. WINDS  
SOUTHWEST AROUND 20 MPH WITH GUSTS TO AROUND 35  
MPH AFTER 1200.  
RIDGE TOP WINDS.....SOUTHWEST 10 TO 15 MPH UNTIL 1200, THEN 20 TO  
25 MPH.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTHWEST 10 TO 15 MPH UNTIL 1200, THEN 25 TO  
30 MPH.  
MIXING HEIGHT.......200-400 FT AGL UNTIL 1200, THEN 8800-9400 FT  
AGL.  
SMOKE DISPERSAL.....POOR UNTIL 1200, THEN EXCELLENT.  
HAINES INDEX........6 OR HIGH POTENTIAL FOR LARGE PLUME DOMINATED  
FIRE GROWTH.  
   
SATURDAY NIGHT
 
 
SKY/WEATHER.........MOSTLY CLEAR.  
MIN TEMPERATURE.....36-41.  
24 HR TREND......3 DEGREES WARMER.  
MAX HUMIDITY........48-54 PERCENT.  
24 HR TREND......4 PERCENT WETTER.  
HUMIDITY RECOVERY...MODERATE.  
20-FOOT WINDS.......SOUTHWEST WINDS 10 TO 15 MPH. GUSTS UP TO 20  
MPH UNTIL 2100.  
RIDGE TOP WINDS.....SOUTHWEST 15 TO 20 MPH.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....WEST AROUND 25 MPH UNTIL 2100, THEN SOUTHWEST  
AROUND 15 MPH.  
MIXING HEIGHT.......3600-4200 FT AGL UNTIL 2400, THEN 200 FT AGL.  
SMOKE DISPERSAL.....FAIR TO GOOD UNTIL 2400, THEN POOR.  
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
SUNDAY
 
 
SKY/WEATHER.........MOSTLY SUNNY THEN BECOMING PARTLY CLOUDY THEN  
BECOMING MOSTLY CLOUDY.  
MAX TEMPERATURE.....58-63.  
24 HR TREND......3 DEGREES COOLER.  
MIN HUMIDITY........21-27 PERCENT.  
24 HR TREND......5 PERCENT WETTER.  
20-FOOT WINDS.......SOUTHWEST WINDS AROUND 10 MPH WITH HIGHER GUSTS  
UNTIL 1200, THEN AROUND 20 MPH WITH GUSTS TO  
AROUND 35 MPH.  
RIDGE TOP WINDS.....SOUTHWEST AROUND 15 MPH UNTIL 1200, THEN AROUND  
25 MPH.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTHWEST AROUND 15 MPH UNTIL 1200, THEN AROUND  
30 MPH.  
MIXING HEIGHT.......400 FT AGL UNTIL 1200, THEN 10400-11000 FT AGL.  
SMOKE DISPERSAL.....POOR UNTIL 1200, THEN EXCELLENT.  
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
 
   
FORECAST DAYS 3 THROUGH 7...
 
   
SUNDAY NIGHT
 
PARTLY CLOUDY. LOWS IN THE LOWER 30S. WEST WINDS  
AROUND 10 MPH.    
MONDAY THROUGH TUESDAY
 
MOSTLY CLEAR. LOWS 27 TO 32. HIGHS IN  
THE LOWER 50S. WEST WINDS AROUND 10 MPH.    
WEDNESDAY
 
MOSTLY CLEAR. LOWS IN THE UPPER 20S. HIGHS IN THE  
UPPER 50S. WEST WINDS AROUND 10 MPH.    
THURSDAY THROUGH FRIDAY
 
MOSTLY CLEAR. LOWS AROUND 30. HIGHS  
58 TO 63.  
 

 
 
WYZ288-221030-  
EAST WIND RIVER MOUNTAINS/SOUTH SHOSHONE NF-  
INCLUDING THE CITIES OF DUBOIS AND SOUTH PASS  
153 PM MDT FRI SEP 21 2018  
 
...RED FLAG WARNING IN EFFECT FROM NOON SATURDAY TO 8 PM MDT  
SUNDAY...  
   
THIS AFTERNOON
 
 
SKY/WEATHER.........MOSTLY SUNNY. SMOKE.  
MAX TEMPERATURE.....60-65.  
24 HR TREND......7 DEGREES WARMER.  
MIN HUMIDITY........11-17 PERCENT.  
24 HR TREND......3 PERCENT DRIER.  
20-FOOT WINDS.......WEST WINDS AROUND 15 MPH WITH GUSTS TO AROUND  
25 MPH.  
RIDGE TOP WINDS.....WEST AROUND 20 MPH.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....WEST AROUND 20 MPH.  
MIXING HEIGHT.......6400-7200 FT AGL.  
SMOKE DISPERSAL.....VERY GOOD.  
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
TONIGHT
 
 
SKY/WEATHER.........MOSTLY CLEAR. AREAS OF SMOKE IN THE EVENING.  
MIN TEMPERATURE.....38-43.  
24 HR TREND......9 DEGREES WARMER.  
MAX HUMIDITY........37-43 PERCENT.  
24 HR TREND......12 PERCENT DRIER.  
HUMIDITY RECOVERY...POOR.  
20-FOOT WINDS.......WEST WINDS 10 TO 15 MPH AND GUSTY.  
RIDGE TOP WINDS.....WEST 15 TO 20 MPH.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTHWEST 15 TO 20 MPH.  
MIXING HEIGHT.......2200-2800 FT AGL UNTIL 2400, THEN 200 FT AGL.  
SMOKE DISPERSAL.....POOR.  
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
SATURDAY
 
 
SKY/WEATHER.........MOSTLY SUNNY.  
MAX TEMPERATURE.....66-71.  
24 HR TREND......5 DEGREES WARMER.  
MIN HUMIDITY........11-17 PERCENT.  
24 HR TREND......1 PERCENT DRIER.  
20-FOOT WINDS.......SOUTHWEST WINDS 15 TO 20 MPH. GUSTS UP TO 20  
MPH UNTIL 1200, THEN 35 MPH.  
RIDGE TOP WINDS.....SOUTHWEST 20 TO 25 MPH.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTHWEST AROUND 20 MPH UNTIL 1200, THEN WEST  
AROUND 30 MPH.  
MIXING HEIGHT.......200-400 FT AGL UNTIL 1200, THEN 8800-9800 FT  
AGL.  
SMOKE DISPERSAL.....POOR UNTIL 1200, THEN EXCELLENT.  
HAINES INDEX........6 OR HIGH POTENTIAL FOR LARGE PLUME DOMINATED  
FIRE GROWTH.  
   
SATURDAY NIGHT
 
 
SKY/WEATHER.........MOSTLY CLEAR.  
MIN TEMPERATURE.....40-45.  
24 HR TREND......2 DEGREES WARMER.  
MAX HUMIDITY........43-49 PERCENT.  
24 HR TREND......6 PERCENT WETTER.  
HUMIDITY RECOVERY...MODERATE.  
20-FOOT WINDS.......SOUTHWEST WINDS 10 TO 15 MPH. GUSTS UP TO 25  
MPH UNTIL 2400.  
RIDGE TOP WINDS.....SOUTHWEST 15 TO 20 MPH.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....WEST AROUND 25 MPH UNTIL 2100, THEN SOUTHWEST  
AROUND 15 MPH.  
MIXING HEIGHT.......4000-4400 FT AGL UNTIL 2400, THEN 200 FT AGL.  
SMOKE DISPERSAL.....GOOD UNTIL 2400, THEN POOR.  
HAINES INDEX........6 OR HIGH POTENTIAL FOR LARGE PLUME DOMINATED  
FIRE GROWTH.  
   
SUNDAY
 
 
SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY SUNNY THEN  
BECOMING PARTLY CLOUDY.  
MAX TEMPERATURE.....63-68.  
24 HR TREND......2 DEGREES COOLER.  
MIN HUMIDITY........16-22 PERCENT.  
24 HR TREND......4 PERCENT WETTER.  
20-FOOT WINDS.......BREEZY. SOUTHWEST WINDS 15 TO 20 MPH WITH GUSTS  
TO AROUND 35 MPH UNTIL 1500, THEN WEST AROUND  
25 MPH WITH GUSTS TO AROUND 40 MPH.  
RIDGE TOP WINDS.....SOUTHWEST 20 TO 25 MPH UNTIL 1500, THEN WEST  
AROUND 30 MPH.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTHWEST 20 TO 25 MPH UNTIL 1200, THEN AROUND  
30 MPH.  
MIXING HEIGHT.......400-600 FT AGL UNTIL 1200, THEN 10600-11400 FT  
AGL.  
SMOKE DISPERSAL.....POOR UNTIL 1200, THEN EXCELLENT.  
HAINES INDEX........6 OR HIGH POTENTIAL FOR LARGE PLUME DOMINATED  
FIRE GROWTH.  
 
   
FORECAST DAYS 3 THROUGH 7...
 
   
SUNDAY NIGHT
 
PARTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS. LOWS  
IN THE MID 30S. WEST WINDS AROUND 10 MPH.    
MONDAY THROUGH TUESDAY
 
MOSTLY CLEAR. LOWS 32 TO 37. HIGHS IN  
THE MID 50S. WEST WINDS AROUND 10 MPH.    
WEDNESDAY
 
MOSTLY CLEAR. LOWS IN THE MID 30S. HIGHS IN THE  
LOWER 60S. NORTHWEST WINDS AROUND 10 MPH.    
THURSDAY THROUGH FRIDAY
 
MOSTLY CLEAR. LOWS 32 TO 37. HIGHS  
59 TO 64.  
 

 
 
WYZ414-221030-  
SALT AND WYOMING RANGES/WEST ZONE BRIDGER TETON NF-  
INCLUDING THE CITY OF AFTON  
153 PM MDT FRI SEP 21 2018  
 
...RED FLAG WARNING IN EFFECT FROM NOON SATURDAY TO 8 PM MDT  
SUNDAY...  
   
THIS AFTERNOON
 
 
SKY/WEATHER.........MOSTLY SUNNY. SMOKE.  
MAX TEMPERATURE.....62-67.  
24 HR TREND......7 DEGREES WARMER.  
MIN HUMIDITY........10-16 PERCENT.  
24 HR TREND......3 PERCENT DRIER.  
20-FOOT WINDS.......WEST WINDS AROUND 10 MPH WITH HIGHER GUSTS.  
RIDGE TOP WINDS.....WEST AROUND 15 MPH.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTHWEST AROUND 15 MPH.  
MIXING HEIGHT.......7600-8200 FT AGL.  
SMOKE DISPERSAL.....VERY GOOD.  
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
TONIGHT
 
 
SKY/WEATHER.........MOSTLY CLEAR. AREAS OF SMOKE IN THE EVENING.  
MIN TEMPERATURE.....27-32.  
24 HR TREND......7 DEGREES WARMER.  
MAX HUMIDITY........55-61 PERCENT.  
24 HR TREND......8 PERCENT DRIER.  
HUMIDITY RECOVERY...MODERATE.  
20-FOOT WINDS.......SOUTH WINDS AROUND 10 MPH. GUSTS UP TO 15 MPH.  
RIDGE TOP WINDS.....SOUTH AROUND 15 MPH.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTH AROUND 15 MPH.  
MIXING HEIGHT.......3000-3200 FT AGL UNTIL 2400, THEN 200 FT AGL.  
SMOKE DISPERSAL.....POOR.  
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
SATURDAY
 
 
SKY/WEATHER.........MOSTLY SUNNY.  
MAX TEMPERATURE.....66-71.  
24 HR TREND......5 DEGREES WARMER.  
MIN HUMIDITY........9-15 PERCENT.  
24 HR TREND......2 PERCENT DRIER.  
20-FOOT WINDS.......SOUTHWEST WINDS 10 TO 15 MPH WITH GUSTS TO  
AROUND 25 MPH UNTIL 1500, THEN WEST AROUND 20  
MPH WITH GUSTS TO AROUND 30 MPH.  
RIDGE TOP WINDS.....SOUTHWEST 15 TO 20 MPH UNTIL 1500, THEN WEST  
AROUND 25 MPH.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTH AROUND 15 MPH UNTIL 1200, THEN SOUTHWEST  
20 TO 25 MPH.  
MIXING HEIGHT.......200 FT AGL UNTIL 1200, THEN 10000-10600 FT AGL.  
SMOKE DISPERSAL.....POOR UNTIL 1200, THEN EXCELLENT.  
HAINES INDEX........6 OR HIGH POTENTIAL FOR LARGE PLUME DOMINATED  
FIRE GROWTH.  
   
SATURDAY NIGHT
 
 
SKY/WEATHER.........MOSTLY CLEAR.  
MIN TEMPERATURE.....34-39.  
24 HR TREND......5 DEGREES WARMER.  
MAX HUMIDITY........60-66 PERCENT.  
24 HR TREND......4 PERCENT WETTER.  
HUMIDITY RECOVERY...GOOD.  
20-FOOT WINDS.......SOUTHWEST WINDS AROUND 15 MPH AND GUSTY UNTIL  
2100, THEN DOWNSLOPE/DOWNVALLEY 4-7 MPH UNTIL  
2400, THEN SOUTH AROUND 10 MPH.  
RIDGE TOP WINDS.....SOUTH 10 TO 15 MPH.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....WEST AROUND 25 MPH UNTIL 2100, THEN SOUTH 10 TO  
15 MPH.  
MIXING HEIGHT.......4200-4600 FT AGL UNTIL 2400, THEN 200 FT AGL.  
SMOKE DISPERSAL.....GOOD UNTIL 2400, THEN POOR.  
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
SUNDAY
 
 
SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY SUNNY THEN  
BECOMING PARTLY CLOUDY.  
MAX TEMPERATURE.....61-66.  
24 HR TREND......4 DEGREES COOLER.  
MIN HUMIDITY........16-22 PERCENT.  
24 HR TREND......5 PERCENT WETTER.  
20-FOOT WINDS.......SOUTHWEST WINDS 10 TO 15 MPH WITH GUSTS TO  
AROUND 25 MPH UNTIL 1500, THEN WEST AROUND 20  
MPH WITH GUSTS TO AROUND 30 MPH.  
RIDGE TOP WINDS.....SOUTHWEST 15 TO 20 MPH UNTIL 1500, THEN WEST  
AROUND 25 MPH.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTHWEST 15 TO 20 MPH UNTIL 1200, THEN 25 TO  
30 MPH.  
MIXING HEIGHT.......200-400 FT AGL UNTIL 1200, THEN 11000-11400 FT  
AGL.  
SMOKE DISPERSAL.....POOR UNTIL 1200, THEN EXCELLENT.  
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
 
   
FORECAST DAYS 3 THROUGH 7...
 
   
SUNDAY NIGHT
 
PARTLY CLOUDY. LOWS IN THE LOWER 30S. WEST WINDS  
AROUND 10 MPH.    
MONDAY
 
MOSTLY CLEAR. LOWS IN THE LOWER 30S. HIGHS IN THE MID  
50S. WEST WINDS AROUND 10 MPH.    
TUESDAY
 
CLEAR. LOWS IN THE UPPER 20S. HIGHS IN THE UPPER 50S.  
WINDS GENERALLY LESS THAN 10 MPH.    
WEDNESDAY
 
MOSTLY CLEAR. LOWS IN THE UPPER 20S. HIGHS IN THE  
MID 60S. WEST WINDS AROUND 10 MPH.    
THURSDAY THROUGH FRIDAY
 
MOSTLY CLEAR. LOWS IN THE LOWER 30S.  
HIGHS 62 TO 67.  
 

 
 
WYZ278-221030-  
UPPER GREEN RIVER BASIN/ROCK SPRINGS BLM-  
INCLUDING THE CITIES OF BIG PINEY, FARSON, AND PINEDALE  
153 PM MDT FRI SEP 21 2018  
 
...RED FLAG WARNING IN EFFECT FROM NOON SATURDAY TO 8 PM MDT  
SUNDAY...  
   
THIS AFTERNOON
 
 
SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY SUNNY.  
SMOKE.  
MAX TEMPERATURE.....63-68.  
24 HR TREND......8 DEGREES WARMER.  
MIN HUMIDITY........9-15 PERCENT.  
24 HR TREND......2 PERCENT DRIER.  
20-FOOT WINDS.......SOUTHWEST WINDS AROUND 10 MPH WITH HIGHER  
GUSTS.  
RIDGE TOP WINDS.....SOUTHWEST AROUND 15 MPH.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....WEST AROUND 15 MPH.  
MIXING HEIGHT.......6800-8000 FT AGL.  
SMOKE DISPERSAL.....GOOD.  
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
TONIGHT
 
 
SKY/WEATHER.........MOSTLY CLEAR. AREAS OF SMOKE IN THE EVENING.  
MIN TEMPERATURE.....29-34.  
24 HR TREND......4 DEGREES WARMER.  
MAX HUMIDITY........54-60 PERCENT.  
24 HR TREND......5 PERCENT DRIER.  
HUMIDITY RECOVERY...MODERATE.  
20-FOOT WINDS.......WEST WINDS AROUND 10 MPH WITH GUSTS TO AROUND  
15 MPH UNTIL 2100, THEN DOWNSLOPE/DOWNVALLEY  
4-7 MPH.  
RIDGE TOP WINDS.....WEST 10 TO 15 MPH UNTIL 2400, THEN NORTH.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....WEST AROUND 15 MPH UNTIL 2100, THEN NORTH.  
MIXING HEIGHT.......3000-3600 FT AGL UNTIL 2400, THEN 200 FT AGL.  
SMOKE DISPERSAL.....POOR.  
HAINES INDEX........6 OR HIGH POTENTIAL FOR LARGE PLUME DOMINATED  
FIRE GROWTH.  
   
SATURDAY
 
 
SKY/WEATHER.........MOSTLY SUNNY.  
MAX TEMPERATURE.....68-73.  
24 HR TREND......5 DEGREES WARMER.  
MIN HUMIDITY........9-15 PERCENT.  
24 HR TREND......1 PERCENT DRIER.  
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH UNTIL 1200, THEN  
SOUTHWEST 15 TO 20 MPH WITH GUSTS TO AROUND 35  
MPH.  
RIDGE TOP WINDS.....NORTHEAST AROUND 10 MPH UNTIL 0900, THEN SOUTH  
UNTIL 1200, THEN SOUTHWEST 20 TO 25 MPH.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....EAST AROUND 10 MPH UNTIL 1200, THEN SOUTHWEST  
20 TO 25 MPH.  
MIXING HEIGHT.......0-200 FT AGL UNTIL 1200, THEN 11200-11800 FT  
AGL.  
SMOKE DISPERSAL.....POOR UNTIL 1200, THEN EXCELLENT.  
HAINES INDEX........6 OR HIGH POTENTIAL FOR LARGE PLUME DOMINATED  
FIRE GROWTH.  
   
SATURDAY NIGHT
 
 
SKY/WEATHER.........MOSTLY CLEAR.  
MIN TEMPERATURE.....34-39.  
24 HR TREND......9 DEGREES WARMER.  
MAX HUMIDITY........57-63 PERCENT.  
24 HR TREND......UNCHANGED.  
HUMIDITY RECOVERY...GOOD.  
20-FOOT WINDS.......WEST WINDS AROUND 15 MPH AND GUSTY UNTIL 2100,  
THEN DOWNSLOPE/DOWNVALLEY 4-7 MPH.  
RIDGE TOP WINDS.....WEST AROUND 20 MPH UNTIL 2100, THEN AROUND 10  
MPH UNTIL 2400, THEN SOUTH.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....WEST 15 TO 20 MPH UNTIL 2400, THEN SOUTHEAST  
AROUND 10 MPH.  
MIXING HEIGHT.......4800-5000 FT AGL UNTIL 2400, THEN 200 FT AGL.  
SMOKE DISPERSAL.....GOOD UNTIL 2400, THEN POOR.  
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
SUNDAY
 
 
SKY/WEATHER.........MOSTLY SUNNY THEN BECOMING PARTLY CLOUDY.  
MAX TEMPERATURE.....66-71.  
24 HR TREND......3 DEGREES COOLER.  
MIN HUMIDITY........13-19 PERCENT.  
24 HR TREND......3 PERCENT WETTER.  
20-FOOT WINDS.......BREEZY. SOUTHWEST WINDS AROUND 10 MPH AND GUSTY  
UNTIL 1200, THEN WEST 20 TO 25 MPH WITH GUSTS  
TO AROUND 40 MPH.  
RIDGE TOP WINDS.....SOUTHWEST AROUND 15 MPH UNTIL 1200, THEN WEST  
25 TO 30 MPH.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTH AROUND 15 MPH UNTIL 1200, THEN SOUTHWEST  
25 TO 30 MPH.  
MIXING HEIGHT.......200 FT AGL UNTIL 1200, THEN 12400-13000 FT AGL.  
SMOKE DISPERSAL.....POOR UNTIL 1200, THEN EXCELLENT.  
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
 
   
FORECAST DAYS 3 THROUGH 7...
 
   
SUNDAY NIGHT
 
PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS IN THE  
EVENING. LOWS IN THE LOWER 30S. NORTHWEST WINDS AROUND 10 MPH.    
MONDAY THROUGH TUESDAY
 
MOSTLY CLEAR. LOWS 27 TO 32. HIGHS  
61 TO 66. NORTHWEST WINDS AROUND 10 MPH.    
WEDNESDAY
 
MOSTLY CLEAR. LOWS IN THE UPPER 20S. HIGHS AROUND  
70. NORTHWEST WINDS AROUND 10 MPH.    
THURSDAY
 
MOSTLY CLEAR. LOWS IN THE UPPER 20S. HIGHS IN THE  
UPPER 60S.    
FRIDAY
 
SUNNY. HIGHS IN THE LOWER 70S.  
 

 
 
WYZ277-221030-  
LINCOLN AND UINTA COUNTIES/LOWER ELEVATIONS-  
INCLUDING THE CITIES OF EVANSTON, FORT BRIDGER, AND KEMMERER  
153 PM MDT FRI SEP 21 2018  
 
...RED FLAG WARNING IN EFFECT FROM NOON SATURDAY TO 8 PM MDT  
SUNDAY...  
   
THIS AFTERNOON
 
 
SKY/WEATHER.........SUNNY.  
MAX TEMPERATURE.....66-71.  
24 HR TREND......9 DEGREES WARMER.  
MIN HUMIDITY........7-13 PERCENT.  
24 HR TREND......2 PERCENT DRIER.  
20-FOOT WINDS.......WEST WINDS AROUND 10 MPH WITH HIGHER GUSTS.  
RIDGE TOP WINDS.....WEST AROUND 15 MPH.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....WEST AROUND 15 MPH.  
MIXING HEIGHT.......8000-8600 FT AGL.  
SMOKE DISPERSAL.....GOOD TO VERY GOOD.  
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
TONIGHT
 
 
SKY/WEATHER.........CLEAR.  
MIN TEMPERATURE.....33-38.  
24 HR TREND......7 DEGREES WARMER.  
MAX HUMIDITY........44-50 PERCENT.  
24 HR TREND......7 PERCENT DRIER.  
HUMIDITY RECOVERY...MODERATE.  
20-FOOT WINDS.......WEST WINDS AROUND 10 MPH AND GUSTY UNTIL 2100,  
THEN DOWNSLOPE/DOWNVALLEY 4-7 MPH.  
RIDGE TOP WINDS.....WEST 10 TO 15 MPH.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....WEST 10 TO 15 MPH.  
MIXING HEIGHT.......3400-3800 FT AGL UNTIL 2400, THEN 0-200 FT AGL.  
SMOKE DISPERSAL.....POOR.  
HAINES INDEX........6 OR HIGH POTENTIAL FOR LARGE PLUME DOMINATED  
FIRE GROWTH.  
   
SATURDAY
 
 
SKY/WEATHER.........MOSTLY SUNNY.  
MAX TEMPERATURE.....70-75.  
24 HR TREND......5 DEGREES WARMER.  
MIN HUMIDITY........7-13 PERCENT.  
24 HR TREND......UNCHANGED.  
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH UNTIL 0900. WINDS  
SOUTHWEST AROUND 20 MPH WITH GUSTS TO AROUND 35  
MPH AFTER 1200.  
RIDGE TOP WINDS.....SOUTHWEST AROUND 10 MPH UNTIL 1200, THEN 20 TO  
25 MPH.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTH AROUND 10 MPH UNTIL 0900, THEN SOUTHEAST  
UNTIL 1200, THEN SOUTHWEST AROUND 25 MPH.  
MIXING HEIGHT.......200 FT AGL UNTIL 1200, THEN 11200-11600 FT AGL.  
SMOKE DISPERSAL.....POOR UNTIL 1200, THEN EXCELLENT.  
HAINES INDEX........6 OR HIGH POTENTIAL FOR LARGE PLUME DOMINATED  
FIRE GROWTH.  
   
SATURDAY NIGHT
 
 
SKY/WEATHER.........MOSTLY CLEAR.  
MIN TEMPERATURE.....37-42.  
24 HR TREND......5 DEGREES WARMER.  
MAX HUMIDITY........55-61 PERCENT.  
24 HR TREND......6 PERCENT WETTER.  
HUMIDITY RECOVERY...MODERATE.  
20-FOOT WINDS.......WEST WINDS AROUND 15 MPH AND GUSTY UNTIL 2100,  
THEN DOWNSLOPE/DOWNVALLEY 4-7 MPH UNTIL 2400,  
THEN SOUTHWEST AROUND 10 MPH WITH GUSTS TO  
AROUND 15 MPH.  
RIDGE TOP WINDS.....WEST AROUND 20 MPH UNTIL 2100, THEN SOUTHWEST  
10 TO 15 MPH.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....WEST AROUND 25 MPH UNTIL 2100, THEN SOUTHWEST  
AROUND 15 MPH.  
MIXING HEIGHT.......4200-4400 FT AGL UNTIL 2400, THEN 200 FT AGL.  
SMOKE DISPERSAL.....GOOD UNTIL 2400, THEN POOR.  
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
SUNDAY
 
 
SKY/WEATHER.........MOSTLY SUNNY THEN BECOMING PARTLY CLOUDY.  
MAX TEMPERATURE.....68-73.  
24 HR TREND......3 DEGREES COOLER.  
MIN HUMIDITY........11-17 PERCENT.  
24 HR TREND......3 PERCENT WETTER.  
20-FOOT WINDS.......BREEZY. SOUTHWEST WINDS 10 TO 15 MPH WITH  
HIGHER GUSTS UNTIL 1200, THEN WEST 20 TO 25 MPH  
WITH GUSTS TO AROUND 40 MPH.  
RIDGE TOP WINDS.....SOUTHWEST AROUND 15 MPH UNTIL 1200, THEN WEST  
25 TO 30 MPH.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTHWEST 15 TO 20 MPH UNTIL 1200, THEN AROUND  
30 MPH.  
MIXING HEIGHT.......200 FT AGL UNTIL 1200, THEN 12000-12400 FT AGL.  
SMOKE DISPERSAL.....POOR UNTIL 1200, THEN EXCELLENT.  
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
 
   
FORECAST DAYS 3 THROUGH 7...
 
   
SUNDAY NIGHT
 
PARTLY CLOUDY. LOWS IN THE LOWER 30S. NORTHWEST  
WINDS AROUND 10 MPH.    
MONDAY
 
COOLER. MOSTLY CLEAR. LOWS IN THE LOWER 30S. HIGHS IN  
THE LOWER 60S. NORTHWEST WINDS AROUND 10 MPH.    
TUESDAY
 
CLEAR. LOWS IN THE UPPER 20S. HIGHS IN THE MID 60S.  
WINDS GENERALLY LESS THAN 10 MPH.    
WEDNESDAY
 
MOSTLY CLEAR. LOWS IN THE UPPER 20S. HIGHS IN THE  
LOWER 70S. WEST WINDS AROUND 10 MPH.    
THURSDAY THROUGH FRIDAY
 
CLEAR. LOWS IN THE LOWER 30S. HIGHS  
69 TO 74.  
 

 
 
WYZ279-221030-  
SWEETWATER COUNTY/ROCK SPRINGS BLM/FLAMING GORGE NRA-  
INCLUDING THE CITIES OF GREEN RIVER, ROCK SPRINGS, AND WAMSUTTER  
153 PM MDT FRI SEP 21 2018  
 
...RED FLAG WARNING IN EFFECT FROM NOON SATURDAY TO 8 PM MDT  
SUNDAY...  
   
THIS AFTERNOON
 
 
SKY/WEATHER.........SUNNY.  
MAX TEMPERATURE.....69-74.  
24 HR TREND......7 DEGREES WARMER.  
MIN HUMIDITY........11-17 PERCENT.  
24 HR TREND......1 PERCENT DRIER.  
20-FOOT WINDS.......WEST WINDS AROUND 10 MPH WITH HIGHER GUSTS.  
RIDGE TOP WINDS.....WEST AROUND 15 MPH.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....WEST AROUND 15 MPH.  
MIXING HEIGHT.......7200-7800 FT AGL.  
SMOKE DISPERSAL.....GOOD TO VERY GOOD.  
HAINES INDEX........6 OR HIGH POTENTIAL FOR LARGE PLUME DOMINATED  
FIRE GROWTH.  
   
TONIGHT
 
 
SKY/WEATHER.........CLEAR.  
MIN TEMPERATURE.....36-41.  
24 HR TREND......7 DEGREES WARMER.  
MAX HUMIDITY........36-42 PERCENT.  
24 HR TREND......6 PERCENT DRIER.  
HUMIDITY RECOVERY...POOR.  
20-FOOT WINDS.......WEST WINDS AROUND 10 MPH UNTIL 2100, THEN  
DOWNSLOPE/DOWNVALLEY 4-7 MPH UNTIL 2400, THEN  
SOUTHWEST AROUND 10 MPH UNTIL 0300, THEN  
DOWNSLOPE/DOWNVALLEY 4-7 MPH. GUSTS UP TO 15  
MPH.  
RIDGE TOP WINDS.....SOUTHWEST 10 TO 15 MPH.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTHWEST 10 TO 15 MPH.  
MIXING HEIGHT.......2800-3400 FT AGL UNTIL 2400, THEN 200 FT AGL.  
SMOKE DISPERSAL.....POOR.  
HAINES INDEX........6 OR HIGH POTENTIAL FOR LARGE PLUME DOMINATED  
FIRE GROWTH.  
   
SATURDAY
 
 
SKY/WEATHER.........SUNNY.  
MAX TEMPERATURE.....72-77.  
24 HR TREND......4 DEGREES WARMER.  
MIN HUMIDITY........14-20 PERCENT.  
24 HR TREND......UNCHANGED.  
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH UNTIL 0900. WINDS  
SOUTHWEST AROUND 20 MPH WITH GUSTS TO AROUND 30  
MPH AFTER 1500.  
RIDGE TOP WINDS.....SOUTH 10 TO 15 MPH UNTIL 1200, THEN SOUTHWEST  
20 TO 25 MPH.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTH 10 TO 15 MPH UNTIL 1200, THEN SOUTHWEST  
20 TO 25 MPH.  
MIXING HEIGHT.......200 FT AGL UNTIL 1200, THEN 11400-11800 FT AGL.  
SMOKE DISPERSAL.....POOR UNTIL 1200, THEN EXCELLENT.  
HAINES INDEX........6 OR HIGH POTENTIAL FOR LARGE PLUME DOMINATED  
FIRE GROWTH.  
   
SATURDAY NIGHT
 
 
SKY/WEATHER.........MOSTLY CLEAR.  
MIN TEMPERATURE.....43-48.  
24 HR TREND......4 DEGREES WARMER.  
MAX HUMIDITY........37-43 PERCENT.  
24 HR TREND......4 PERCENT WETTER.  
HUMIDITY RECOVERY...POOR.  
20-FOOT WINDS.......SOUTH WINDS 10 TO 15 MPH. GUSTS UP TO 25 MPH  
UNTIL 2100, THEN 15 MPH.  
RIDGE TOP WINDS.....SOUTHWEST 15 TO 20 MPH UNTIL 2400, THEN SOUTH  
10 TO 15 MPH.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTHWEST 15 TO 20 MPH UNTIL 2400, THEN SOUTH  
10 TO 15 MPH.  
MIXING HEIGHT.......4200-5000 FT AGL UNTIL 2400, THEN 200 FT AGL.  
SMOKE DISPERSAL.....FAIR TO GOOD UNTIL 2400, THEN POOR.  
HAINES INDEX........6 OR HIGH POTENTIAL FOR LARGE PLUME DOMINATED  
FIRE GROWTH.  
   
SUNDAY
 
 
SKY/WEATHER.........MOSTLY SUNNY THEN BECOMING PARTLY CLOUDY.  
SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS LATE  
IN THE AFTERNOON. CHANCE OF PRECIPITATION 20  
PERCENT.  
MAX TEMPERATURE.....70-75.  
24 HR TREND......1 DEGREE COOLER.  
MIN HUMIDITY........19-25 PERCENT.  
24 HR TREND......5 PERCENT WETTER.  
20-FOOT WINDS.......BREEZY. SOUTHWEST WINDS 10 TO 15 MPH WITH GUSTS  
TO AROUND 25 MPH UNTIL 1200, THEN 20 TO 25 MPH  
WITH GUSTS TO AROUND 35 MPH.  
RIDGE TOP WINDS.....SOUTHWEST 15 TO 20 MPH UNTIL 1200, THEN AROUND  
30 MPH.  
LAL.................1 UNTIL 1200, THEN 2.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTHWEST 15 TO 20 MPH UNTIL 1200, THEN AROUND  
30 MPH.  
MIXING HEIGHT.......0-200 FT AGL UNTIL 1200, THEN 11600-12200 FT  
AGL.  
SMOKE DISPERSAL.....POOR UNTIL 1200, THEN EXCELLENT.  
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
 
   
FORECAST DAYS 3 THROUGH 7...
 
   
SUNDAY NIGHT
 
MOSTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS IN THE EVENING, THEN CHANCE OF SHOWERS AFTER  
MIDNIGHT. LOWS IN THE LOWER 40S. WEST WINDS AROUND 10 MPH.    
MONDAY
 
MOSTLY CLEAR. LOWS IN THE LOWER 40S. HIGHS IN THE MID  
60S. WEST WINDS AROUND 15 MPH.    
TUESDAY
 
CLEAR. LOWS IN THE LOWER 30S. HIGHS IN THE MID 60S.  
WINDS GENERALLY LESS THAN 10 MPH.    
WEDNESDAY
 
MOSTLY CLEAR. LOWS IN THE MID 30S. HIGHS IN THE  
LOWER 70S. WEST WINDS AROUND 15 MPH.    
THURSDAY
 
MOSTLY CLEAR. LOWS IN THE MID 30S. HIGHS IN THE LOWER  
70S.    
FRIDAY
 
SUNNY. HIGHS IN THE MID 70S.  
 

 
 
WYZ289-221030-  
GRANITE/GREEN/FERRIS/RATTLESNAKE MOUNTAINS-  
INCLUDING THE CITY OF JEFFREY CITY  
153 PM MDT FRI SEP 21 2018  
 
...RED FLAG WARNING IN EFFECT FROM NOON SATURDAY TO 8 PM MDT  
SUNDAY...  
   
THIS AFTERNOON
 
 
SKY/WEATHER.........SUNNY. SMOKE.  
MAX TEMPERATURE.....68-73.  
24 HR TREND......8 DEGREES WARMER.  
MIN HUMIDITY........8-14 PERCENT.  
24 HR TREND......3 PERCENT DRIER.  
20-FOOT WINDS.......WEST WINDS AROUND 15 MPH WITH GUSTS TO AROUND  
25 MPH.  
RIDGE TOP WINDS.....SOUTHWEST AROUND 20 MPH.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....WEST AROUND 20 MPH.  
MIXING HEIGHT.......7200-7800 FT AGL.  
SMOKE DISPERSAL.....VERY GOOD.  
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
TONIGHT
 
 
SKY/WEATHER.........MOSTLY CLEAR. AREAS OF SMOKE IN THE EVENING.  
MIN TEMPERATURE.....40-45.  
24 HR TREND......9 DEGREES WARMER.  
MAX HUMIDITY........44-50 PERCENT.  
24 HR TREND......32 PERCENT DRIER.  
HUMIDITY RECOVERY...MODERATE.  
20-FOOT WINDS.......SOUTHWEST WINDS AROUND 10 MPH. GUSTS UP TO 20  
MPH UNTIL 2100, THEN 15 MPH.  
RIDGE TOP WINDS.....SOUTHWEST AROUND 15 MPH.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTHWEST AROUND 15 MPH.  
MIXING HEIGHT.......2600-3000 FT AGL UNTIL 2400, THEN 200 FT AGL.  
SMOKE DISPERSAL.....POOR.  
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
SATURDAY
 
 
SKY/WEATHER.........MOSTLY SUNNY.  
MAX TEMPERATURE.....73-78.  
24 HR TREND......5 DEGREES WARMER.  
MIN HUMIDITY........9-15 PERCENT.  
24 HR TREND......1 PERCENT DRIER.  
20-FOOT WINDS.......SOUTHWEST WINDS 10 TO 15 MPH WITH HIGHER GUSTS  
UNTIL 1200, THEN AROUND 20 MPH WITH GUSTS TO  
AROUND 35 MPH.  
RIDGE TOP WINDS.....SOUTHWEST AROUND 15 MPH UNTIL 1200, THEN AROUND  
25 MPH.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTHWEST AROUND 15 MPH UNTIL 1200, THEN WEST  
25 TO 30 MPH.  
MIXING HEIGHT.......200 FT AGL UNTIL 1200, THEN 11000-11400 FT AGL.  
SMOKE DISPERSAL.....POOR UNTIL 1200, THEN EXCELLENT.  
HAINES INDEX........6 OR HIGH POTENTIAL FOR LARGE PLUME DOMINATED  
FIRE GROWTH.  
   
SATURDAY NIGHT
 
 
SKY/WEATHER.........MOSTLY CLEAR.  
MIN TEMPERATURE.....44-49.  
24 HR TREND......3 DEGREES WARMER.  
MAX HUMIDITY........46-52 PERCENT.  
24 HR TREND......UNCHANGED.  
HUMIDITY RECOVERY...MODERATE.  
20-FOOT WINDS.......SOUTHWEST WINDS 10 TO 15 MPH. GUSTS UP TO 25  
MPH UNTIL 2100, THEN 15 MPH.  
RIDGE TOP WINDS.....SOUTHWEST 15 TO 20 MPH.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTHWEST AROUND 25 MPH UNTIL 2100, THEN AROUND  
15 MPH.  
MIXING HEIGHT.......3800-5000 FT AGL UNTIL 2400, THEN 200 FT AGL.  
SMOKE DISPERSAL.....GOOD UNTIL 2400, THEN POOR.  
HAINES INDEX........6 OR HIGH POTENTIAL FOR LARGE PLUME DOMINATED  
FIRE GROWTH.  
   
SUNDAY
 
 
SKY/WEATHER.........MOSTLY SUNNY THEN BECOMING PARTLY CLOUDY.  
MAX TEMPERATURE.....73-78.  
24 HR TREND......UNCHANGED.  
MIN HUMIDITY........13-19 PERCENT.  
24 HR TREND......4 PERCENT WETTER.  
20-FOOT WINDS.......BREEZY. SOUTHWEST WINDS 10 TO 15 MPH WITH GUSTS  
TO AROUND 25 MPH UNTIL 1200, THEN AROUND 25 MPH  
WITH GUSTS TO AROUND 40 MPH.  
RIDGE TOP WINDS.....SOUTHWEST 15 TO 20 MPH UNTIL 1200, THEN AROUND  
30 MPH.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTHWEST 20 TO 25 MPH UNTIL 1200, THEN AROUND  
30 MPH.  
MIXING HEIGHT.......0-200 FT AGL UNTIL 1200, THEN 12000-12200 FT  
AGL.  
SMOKE DISPERSAL.....POOR UNTIL 1200, THEN EXCELLENT.  
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
 
   
FORECAST DAYS 3 THROUGH 7...
 
   
SUNDAY NIGHT
 
MOSTLY CLOUDY. SLIGHT CHANCE OF SHOWERS IN THE  
EVENING, THEN CHANCE OF SHOWERS AFTER MIDNIGHT. LOWS IN THE LOWER  
40S. WEST WINDS AROUND 10 MPH.    
MONDAY
 
COOLER. PARTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS.  
LOWS IN THE LOWER 40S. HIGHS IN THE MID 60S. NORTHWEST WINDS  
AROUND 10 MPH.    
TUESDAY
 
MOSTLY CLEAR. LOWS IN THE LOWER 30S. HIGHS IN THE  
LOWER 60S. WINDS GENERALLY LESS THAN 10 MPH.    
WEDNESDAY
 
MOSTLY CLEAR. LOWS IN THE MID 30S. HIGHS IN THE  
LOWER 70S. WEST WINDS AROUND 15 MPH.    
THURSDAY THROUGH FRIDAY
 
MOSTLY CLEAR. LOWS IN THE MID 30S.  
HIGHS 69 TO 74.  
 

 
 
WYZ300-221030-  
CASPER MOUNTAIN-  
153 PM MDT FRI SEP 21 2018  
 
...RED FLAG WARNING IN EFFECT FROM NOON SATURDAY TO 8 PM MDT  
SUNDAY...  
   
THIS AFTERNOON
 
 
SKY/WEATHER.........SUNNY. SMOKE.  
MAX TEMPERATURE.....67-72.  
24 HR TREND......8 DEGREES WARMER.  
MIN HUMIDITY........7-13 PERCENT.  
24 HR TREND......16 PERCENT DRIER.  
20-FOOT WINDS.......SOUTHWEST WINDS AROUND 15 MPH WITH HIGHER  
GUSTS.  
RIDGE TOP WINDS.....SOUTHWEST AROUND 15 MPH.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTHWEST AROUND 20 MPH.  
MIXING HEIGHT.......6600-7000 FT AGL.  
SMOKE DISPERSAL.....VERY GOOD.  
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
TONIGHT
 
 
SKY/WEATHER.........CLEAR. AREAS OF SMOKE IN THE EVENING.  
MIN TEMPERATURE.....43-48.  
24 HR TREND......12 DEGREES WARMER.  
MAX HUMIDITY........40-46 PERCENT.  
24 HR TREND......42 PERCENT DRIER.  
HUMIDITY RECOVERY...MODERATE.  
20-FOOT WINDS.......SOUTH WINDS AROUND 10 MPH AND GUSTY.  
RIDGE TOP WINDS.....SOUTH AROUND 15 MPH.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTH AROUND 15 MPH.  
MIXING HEIGHT.......2000-2400 FT AGL UNTIL 2400, THEN 200 FT AGL.  
SMOKE DISPERSAL.....POOR.  
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
SATURDAY
 
 
SKY/WEATHER.........SUNNY.  
MAX TEMPERATURE.....73-78.  
24 HR TREND......6 DEGREES WARMER.  
MIN HUMIDITY........5-11 PERCENT.  
24 HR TREND......2 PERCENT DRIER.  
20-FOOT WINDS.......BREEZY. SOUTHWEST WINDS 15 TO 20 MPH WITH GUSTS  
TO AROUND 35 MPH UNTIL 1500, THEN WEST AROUND  
25 MPH WITH GUSTS TO AROUND 35 MPH.  
RIDGE TOP WINDS.....SOUTHWEST 20 TO 25 MPH UNTIL 1500, THEN WEST  
AROUND 30 MPH.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTHWEST AROUND 20 MPH UNTIL 1200, THEN WEST  
AROUND 30 MPH.  
MIXING HEIGHT.......200 FT AGL UNTIL 1200, THEN 10400-10800 FT AGL.  
SMOKE DISPERSAL.....POOR UNTIL 1200, THEN EXCELLENT.  
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
SATURDAY NIGHT
 
 
SKY/WEATHER.........CLEAR.  
MIN TEMPERATURE.....46-51.  
24 HR TREND......3 DEGREES WARMER.  
MAX HUMIDITY........29-35 PERCENT.  
24 HR TREND......10 PERCENT DRIER.  
HUMIDITY RECOVERY...POOR.  
20-FOOT WINDS.......SOUTHWEST WINDS 10 TO 15 MPH. GUSTS UP TO 25  
MPH UNTIL 2100, THEN 15 MPH.  
RIDGE TOP WINDS.....SOUTHWEST 15 TO 20 MPH.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTHWEST 15 TO 20 MPH.  
MIXING HEIGHT.......200-1000 FT AGL UNTIL 2400, THEN 200 FT AGL.  
SMOKE DISPERSAL.....POOR.  
HAINES INDEX........6 OR HIGH POTENTIAL FOR LARGE PLUME DOMINATED  
FIRE GROWTH.  
   
SUNDAY
 
 
SKY/WEATHER.........MOSTLY SUNNY THEN BECOMING PARTLY CLOUDY.  
MAX TEMPERATURE.....74-79.  
24 HR TREND......UNCHANGED.  
MIN HUMIDITY........11-17 PERCENT.  
24 HR TREND......5 PERCENT WETTER.  
20-FOOT WINDS.......BREEZY. SOUTHWEST WINDS 15 TO 20 MPH WITH GUSTS  
TO AROUND 30 MPH UNTIL 1200, THEN AROUND 25 MPH  
WITH GUSTS TO AROUND 35 MPH.  
RIDGE TOP WINDS.....SOUTHWEST 20 TO 25 MPH UNTIL 1200, THEN AROUND  
30 MPH.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTHWEST 20 TO 25 MPH UNTIL 1200, THEN AROUND  
30 MPH.  
MIXING HEIGHT.......200 FT AGL UNTIL 1200, THEN 10600-11000 FT AGL.  
SMOKE DISPERSAL.....POOR UNTIL 1200, THEN EXCELLENT.  
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
 
   
FORECAST DAYS 3 THROUGH 7...
 
   
SUNDAY NIGHT
 
MOSTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS IN THE EVENING, THEN CHANCE OF SHOWERS AFTER  
MIDNIGHT. LOWS IN THE MID 40S. WEST WINDS AROUND 15 MPH.    
MONDAY
 
COOLER. PARTLY CLOUDY WITH CHANCE OF SHOWERS. LOWS IN  
THE MID 40S. HIGHS AROUND 60. NORTHWEST WINDS AROUND 10 MPH.    
TUESDAY
 
PARTLY CLOUDY. LOWS IN THE UPPER 30S. HIGHS IN THE MID  
50S. NORTHWEST WINDS AROUND 10 MPH.    
WEDNESDAY
 
PARTLY CLOUDY. LOWS IN THE UPPER 30S. HIGHS IN THE  
MID 60S. NORTHWEST WINDS AROUND 15 MPH.    
THURSDAY
 
PARTLY CLOUDY. LOWS IN THE MID 30S. HIGHS IN THE MID  
60S.    
FRIDAY
 
MOSTLY SUNNY. HIGHS IN THE UPPER 60S.  
 

 
 
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