993  
FNUS55 KRIW 240853  
FWFRIW  
 
FIRE WEATHER PLANNING FORECAST FOR WESTERN AND CENTRAL WYOMING  
NATIONAL WEATHER SERVICE RIVERTON WY  
253 AM MDT SUN OCT 24 2021  
   
DISCUSSION
 
 
...YELLOWSTONE NP AND TETON DISPATCH AREAS (INCLUDES FIRE WEATHER  
ZONES 140...414...415...AND 416)...  
 
A MAINLY DRY TODAY THROUGH ABOUT 3 PM WITH SLIGHTLY WARMER  
TEMPERATURES. A SLIGHT BREEZE MAINLY FROM THE SOUTH IS EXPECTED  
THIS AFTERNOON. SMOKE DISPERSAL THIS AFTERNOON IS EXPECTED TO BE  
FAIR TO GOOD. A STORM SYSTEM WILL BEGIN TO PUSH INTO THE AREA LATE  
THIS AFTERNOON AND EVENING. MOUNTAIN SNOW AND VALLEY RAIN ARE  
LIKELY ACROSS THE ENTIRE AREA THIS EVENING SHIFTING NORTHWARD  
AFTER MIDNIGHT IMPACTING ZONE 140 AND THE NORTHERN SECTIONS OF  
ZONE 415. PRECIPITATION AMOUNTS LOOK TO RANGE BETWEEN A TENTH TO A  
QUARTER INCH OF RAIN (MELTED SNOW) IN MOST LOCATIONS. SNOW LEVELS  
ARE EXPECTED GENERALLY BE ABOVE 8000-8500 FEET. HEAVIER  
PRECIPITATION IS EXPECTED TO OCCUR MONDAY NIGHT WITH MOUNTAIN  
SNOW, AND VALLEY RAIN CHANGING TO SNOW LATE.  
   
..CODY DISPATCH AREA (INCLUDES FIRE WEATHER ZONES 275...276
 
 
282...283...285...286...287...288...AND 289)...  
 
DRY, SEASONABLE WITH A SLIGHT BREEZE MAINLY FROM THE SOUTH. SMOKE  
DISPERSAL WILL GENERALLY BE FAIR TO GOOD THIS AFTERNOON. MUCH  
WARMER AND WINDIER CONDITIONS ON MONDAY, BUT RELATIVE HUMIDITY  
WILL NOT REACH CRITICAL FIRE WEATHER THRESHOLDS. A STORM SYSTEM  
WILL IMPACT THE AREA LATE MONDAY NIGHT INTO TUESDAY WITH A GOOD  
SHOT OF VALLEY RAIN AND MOUNTAIN SNOW. OVERALL PRECIPITATION LOOKS  
TO BE ON THE LIGHT SIDE, BUT LOW END WETTING RAIN IS POSSIBLE.  
   
..CASPER DISPATCH AREA (INCLUDES FIRE WEATHER ZONES 277...278
 
 
279...280...281...285...289...AND 300)...  
 
DRY, SEASONABLE WITH BREEZY SOUTHWEST WINDS MAINLY FROM ZONE 279  
NORTHEAST INTO ZONE 280. SMOKE DISPERSAL WILL GENERALLY BE GOOD  
THIS AFTERNOON WITH RELATIVE HUMIDITY GENERALLY BETWEEN 30 AND 40  
PERCENT IN THE LOWER ELEVATIONS. MONDAY WILL BE MUCH WARMER WITH  
WINDY TO STRONG SOUTH TO SOUTHWEST WINDS. HOWEVER, MINIMUM  
RELATIVE HUMIDITY IS EXPECTED TO BE 25 TO 30 PERCENT IN THE LOWER  
ELEVATIONS AND SLIGHTLY HIGHER IN THE MOUNTAINS. A STORM SYSTEM  
WILL IMPACT THE AREA LATE MONDAY NIGHT INTO TUESDAY WITH A GOOD  
SHOT OF VALLEY RAIN AND MOUNTAIN SNOW. OVERALL PRECIPITATION LOOKS  
TO BE ON THE LIGHT SIDE, BUT LOW END WETTING RAIN IS POSSIBLE.  
   
..THUNDERSTORMS IMPLY STRONG GUSTY AND ERRATIC WINDS
 
   
..HAINES INDEX IS HIGH LEVEL HAINES BOTH DAY AND NIGHT
 
 
WYZ280-242245-  
NATRONA COUNTY/CASPER BLM-  
INCLUDING THE CITIES OF CASPER AND MIDWEST  
253 AM MDT SUN OCT 24 2021  
 
...HIGH WIND WATCH IN EFFECT FROM MONDAY MORNING THROUGH MONDAY  
EVENING...  
   
TODAY
 
 
SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY SUNNY.  
MAX TEMPERATURE.....52-57.  
24 HR TREND......1 DEGREE COOLER.  
MIN HUMIDITY........33-39 PERCENT.  
24 HR TREND......4 PERCENT DRIER.  
20-FOOT WINDS.......WEST WINDS 10 TO 15 MPH. GUSTS UP TO 20 MPH  
UNTIL 1200, THEN 25 MPH.  
RIDGE TOP WINDS.....WEST 15 TO 20 MPH.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....WEST 15 TO 20 MPH.  
MIXING HEIGHT.......600-800 FT AGL UNTIL 1200, THEN 3400-4800 FT  
AGL.  
SMOKE DISPERSAL.....POOR UNTIL 1200, THEN GOOD.  
HAINES INDEX........2.  
   
TONIGHT
 
 
SKY/WEATHER.........PARTLY CLOUDY.  
MIN TEMPERATURE.....41-46.  
24 HR TREND......6 DEGREES WARMER.  
MAX HUMIDITY........64-70 PERCENT.  
24 HR TREND......24 PERCENT DRIER.  
HUMIDITY RECOVERY...GOOD.  
20-FOOT WINDS.......SOUTH WINDS 15 TO 20 MPH. GUSTS UP TO 25 MPH  
UNTIL 0300, THEN 30 MPH.  
RIDGE TOP WINDS.....SOUTH 15 TO 20 MPH UNTIL 0300, THEN SOUTHWEST  
AROUND 25 MPH.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTHWEST 20 TO 25 MPH.  
MIXING HEIGHT.......600-1200 FT AGL.  
SMOKE DISPERSAL.....POOR.  
HAINES INDEX........2.  
   
MONDAY
 
 
SKY/WEATHER.........PARTLY CLOUDY.  
MAX TEMPERATURE.....66-71.  
24 HR TREND......15 DEGREES WARMER.  
MIN HUMIDITY........25-31 PERCENT.  
24 HR TREND......7 PERCENT DRIER.  
20-FOOT WINDS.......WINDY. SOUTHWEST WINDS 20 TO 25 MPH WITH GUSTS  
TO AROUND 40 MPH UNTIL 1200, THEN 25 TO 30 MPH  
WITH GUSTS TO AROUND 45 MPH.  
RIDGE TOP WINDS.....SOUTHWEST 25 TO 30 MPH UNTIL 1200, THEN 30 TO  
35 MPH.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTHWEST 30 TO 35 MPH.  
MIXING HEIGHT.......800-2800 FT AGL UNTIL 1500, THEN 4200-4400 FT  
AGL.  
SMOKE DISPERSAL.....POOR UNTIL 1200, THEN GOOD TO VERY GOOD.  
HAINES INDEX........3.  
 
   
FORECAST DAYS 3 THROUGH 7...
 
   
MONDAY NIGHT
 
PARTLY CLOUDY. ISOLATED SHOWERS AFTER MIDNIGHT.  
LOWS IN THE LOWER 40S. SOUTHWEST WINDS AROUND 20 MPH.    
TUESDAY
 
MUCH COOLER. MOSTLY CLOUDY. NUMEROUS SHOWERS. LOWS IN  
THE LOWER 30S. HIGHS IN THE UPPER 40S. WEST WINDS AROUND 15 MPH.    
WEDNESDAY THROUGH THURSDAY
 
MOSTLY CLEAR. LOWS 33 TO 38. HIGHS  
52 TO 57. WEST WINDS AROUND 15 MPH.    
FRIDAY
 
MOSTLY CLEAR. LOWS IN THE UPPER 30S. HIGHS IN THE LOWER  
60S.    
SATURDAY
 
PARTLY CLOUDY. HIGHS IN THE LOWER 50S.  
 

 
 
WYZ283-242245-  
UPPER WIND RIVER BASIN/WIND RIVER BASIN-  
INCLUDING THE CITIES OF CROWHEART, LANDER, RIVERTON, AND SHOSHONI  
253 AM MDT SUN OCT 24 2021  
   
TODAY
 
 
SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY SUNNY THEN  
BECOMING PARTLY CLOUDY.  
MAX TEMPERATURE.....49-54.  
24 HR TREND......2 DEGREES WARMER.  
MIN HUMIDITY........37-43 PERCENT.  
24 HR TREND......14 PERCENT DRIER.  
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH UNTIL 1200, THEN SOUTH  
10 TO 15 MPH WITH HIGHER GUSTS.  
RIDGE TOP WINDS.....SOUTHWEST AROUND 10 MPH UNTIL 1200, THEN SOUTH  
15 TO 20 MPH.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTHWEST 10 TO 15 MPH UNTIL 1500, THEN AROUND  
20 MPH.  
MIXING HEIGHT.......400-600 FT AGL UNTIL 1200, THEN 2600-3400 FT  
AGL.  
SMOKE DISPERSAL.....POOR TO FAIR.  
HAINES INDEX........2.  
   
TONIGHT
 
 
SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY CLOUDY THEN  
BECOMING PARTLY CLOUDY.  
MIN TEMPERATURE.....37-42.  
24 HR TREND......5 DEGREES WARMER.  
MAX HUMIDITY........71-77 PERCENT.  
24 HR TREND......15 PERCENT DRIER.  
HUMIDITY RECOVERY...EXCELLENT.  
20-FOOT WINDS.......SOUTH WINDS AROUND 15 MPH AND GUSTY.  
RIDGE TOP WINDS.....SOUTH AROUND 20 MPH.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTHWEST 15 TO 20 MPH.  
MIXING HEIGHT.......600-1000 FT AGL.  
SMOKE DISPERSAL.....POOR.  
HAINES INDEX........2.  
   
MONDAY
 
 
SKY/WEATHER.........PARTLY CLOUDY.  
MAX TEMPERATURE.....59-64.  
24 HR TREND......12 DEGREES WARMER.  
MIN HUMIDITY........35-41 PERCENT.  
24 HR TREND......3 PERCENT DRIER.  
20-FOOT WINDS.......BREEZY. SOUTHWEST WINDS 15 TO 20 MPH WITH GUSTS  
TO AROUND 30 MPH UNTIL 1200, THEN SOUTH AROUND  
25 MPH WITH GUSTS TO AROUND 40 MPH.  
RIDGE TOP WINDS.....SOUTHWEST 20 TO 25 MPH UNTIL 1200, THEN SOUTH  
AROUND 30 MPH.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTHWEST 20 TO 25 MPH UNTIL 1200, THEN SOUTH  
AROUND 30 MPH.  
MIXING HEIGHT.......600-2400 FT AGL UNTIL 1500, THEN 4200-5000 FT  
AGL.  
SMOKE DISPERSAL.....POOR TO FAIR UNTIL 1500, THEN VERY GOOD.  
HAINES INDEX........2.  
 
   
FORECAST DAYS 3 THROUGH 7...
 
   
MONDAY NIGHT
 
MOSTLY CLOUDY. ISOLATED SHOWERS IN THE EVENING,  
THEN SCATTERED SHOWERS AFTER MIDNIGHT. LOWS IN THE UPPER 30S.  
SOUTHWEST WINDS AROUND 15 MPH.    
TUESDAY
 
COOLER. PARTLY CLOUDY. NUMEROUS SHOWERS AND SLIGHT  
CHANCE OF SNOW SHOWERS. LOWS IN THE LOWER 30S. HIGHS IN THE UPPER  
40S. WEST WINDS AROUND 15 MPH.    
WEDNESDAY
 
MOSTLY CLEAR. SLIGHT CHANCE OF SHOWERS AND SNOW  
SHOWERS. LOWS IN THE LOWER 30S. HIGHS IN THE LOWER 50S. WEST  
WINDS AROUND 15 MPH.    
THURSDAY
 
MOSTLY CLEAR. LOWS IN THE MID 30S. HIGHS IN THE MID  
50S. WEST WINDS AROUND 10 MPH.    
FRIDAY THROUGH SATURDAY
 
PARTLY CLOUDY. LOWS IN THE MID 30S.  
HIGHS 54 TO 59.  
 

 
 
WYZ285-242245-  
SOUTH BIGHORN MOUNTAINS-  
253 AM MDT SUN OCT 24 2021  
   
TODAY
 
 
SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY SUNNY THEN  
BECOMING PARTLY CLOUDY.  
MAX TEMPERATURE.....45-50.  
24 HR TREND......2 DEGREES COOLER.  
MIN HUMIDITY........40-46 PERCENT.  
24 HR TREND......2 PERCENT WETTER.  
20-FOOT WINDS.......SOUTHWEST WINDS 10 TO 15 MPH WITH HIGHER GUSTS.  
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.......400-600 FT AGL UNTIL 1200, THEN 3000-4000 FT  
AGL.  
SMOKE DISPERSAL.....POOR TO FAIR.  
HAINES INDEX........2.  
   
TONIGHT
 
 
SKY/WEATHER.........PARTLY CLOUDY.  
MIN TEMPERATURE.....36-41.  
24 HR TREND......7 DEGREES WARMER.  
MAX HUMIDITY........64-70 PERCENT.  
24 HR TREND......27 PERCENT DRIER.  
HUMIDITY RECOVERY...GOOD.  
20-FOOT WINDS.......SOUTHWEST WINDS 15 TO 20 MPH WITH GUSTS TO  
AROUND 30 MPH.  
RIDGE TOP WINDS.....SOUTHWEST 20 TO 25 MPH.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTHWEST 20 TO 25 MPH.  
MIXING HEIGHT.......600-1000 FT AGL.  
SMOKE DISPERSAL.....POOR.  
HAINES INDEX........2.  
   
MONDAY
 
 
SKY/WEATHER.........PARTLY CLOUDY.  
MAX TEMPERATURE.....58-63.  
24 HR TREND......14 DEGREES WARMER.  
MIN HUMIDITY........35-41 PERCENT.  
24 HR TREND......4 PERCENT DRIER.  
20-FOOT WINDS.......WINDY. SOUTHWEST WINDS 20 TO 25 MPH WITH GUSTS  
TO AROUND 35 MPH UNTIL 1200, THEN 25 TO 30 MPH  
WITH GUSTS TO AROUND 40 MPH.  
RIDGE TOP WINDS.....SOUTHWEST 25 TO 30 MPH UNTIL 1200, THEN 30 TO  
35 MPH.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTHWEST 25 TO 30 MPH UNTIL 1200, THEN AROUND  
35 MPH.  
MIXING HEIGHT.......600-2200 FT AGL UNTIL 1500, THEN 4200-4600 FT  
AGL.  
SMOKE DISPERSAL.....POOR TO FAIR UNTIL 1500, THEN VERY GOOD.  
HAINES INDEX........2.  
 
   
FORECAST DAYS 3 THROUGH 7...
 
   
MONDAY NIGHT
 
MOSTLY CLOUDY. SCATTERED SHOWERS AFTER MIDNIGHT.  
LOWS IN THE MID 30S. SOUTHWEST WINDS AROUND 20 MPH.    
TUESDAY
 
MUCH COLDER. PARTLY CLOUDY. SHOWERS AND NUMEROUS SNOW  
SHOWERS. LOWS IN THE UPPER 20S. HIGHS AROUND 40. WEST WINDS  
AROUND 15 MPH.    
WEDNESDAY THROUGH THURSDAY
 
MOSTLY CLEAR. LOWS 31 TO 36. HIGHS  
45 TO 50. WEST WINDS 10 TO 15 MPH.    
FRIDAY
 
MOSTLY CLEAR. LOWS IN THE UPPER 30S. HIGHS IN THE MID  
50S.    
SATURDAY
 
PARTLY CLOUDY. HIGHS IN THE UPPER 40S.  
 

 
 
WYZ281-242245-  
JOHNSON COUNTY/CASPER BLM-  
INCLUDING THE CITIES OF BUFFALO AND KAYCEE  
253 AM MDT SUN OCT 24 2021  
   
TODAY
 
 
SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY SUNNY.  
MAX TEMPERATURE.....52-57.  
24 HR TREND......1 DEGREE COOLER.  
MIN HUMIDITY........32-38 PERCENT.  
24 HR TREND......4 PERCENT DRIER.  
20-FOOT WINDS.......SOUTH WINDS AROUND 10 MPH. GUSTS UP TO 15 MPH  
UNTIL 1500, THEN 20 MPH.  
RIDGE TOP WINDS.....SOUTH 10 TO 15 MPH.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTHWEST 10 TO 15 MPH.  
MIXING HEIGHT.......400-600 FT AGL UNTIL 1200, THEN 3200-5000 FT  
AGL.  
SMOKE DISPERSAL.....POOR UNTIL 1500, THEN GOOD.  
HAINES INDEX........2.  
   
TONIGHT
 
 
SKY/WEATHER.........PARTLY CLOUDY.  
MIN TEMPERATURE.....40-45.  
24 HR TREND......6 DEGREES WARMER.  
MAX HUMIDITY........60-66 PERCENT.  
24 HR TREND......28 PERCENT DRIER.  
HUMIDITY RECOVERY...GOOD.  
20-FOOT WINDS.......SOUTH WINDS 10 TO 15 MPH AND GUSTY.  
RIDGE TOP WINDS.....SOUTH 15 TO 20 MPH.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTH 15 TO 20 MPH.  
MIXING HEIGHT.......400-800 FT AGL.  
SMOKE DISPERSAL.....POOR.  
HAINES INDEX........3.  
   
MONDAY
 
 
SKY/WEATHER.........MOSTLY CLOUDY THEN BECOMING PARTLY CLOUDY.  
MAX TEMPERATURE.....65-70.  
24 HR TREND......13 DEGREES WARMER.  
MIN HUMIDITY........30-36 PERCENT.  
24 HR TREND......4 PERCENT DRIER.  
20-FOOT WINDS.......WINDY. SOUTH WINDS AROUND 15 MPH WITH GUSTS TO  
AROUND 25 MPH UNTIL 0900, THEN 25 TO 30 MPH  
WITH GUSTS TO AROUND 40 MPH.  
RIDGE TOP WINDS.....SOUTH AROUND 20 MPH UNTIL 0900, THEN 30 TO 35  
MPH.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTHWEST AROUND 20 MPH UNTIL 0900, THEN SOUTH  
30 TO 35 MPH.  
MIXING HEIGHT.......600-2000 FT AGL UNTIL 1500, THEN 3400-4000 FT  
AGL.  
SMOKE DISPERSAL.....POOR TO FAIR UNTIL 1500, THEN GOOD TO VERY  
GOOD.  
HAINES INDEX........3.  
 
   
FORECAST DAYS 3 THROUGH 7...
 
   
MONDAY NIGHT
 
MOSTLY CLOUDY. SCATTERED SHOWERS AFTER MIDNIGHT.  
LOWS AROUND 40. SOUTHWEST WINDS AROUND 15 MPH.    
TUESDAY
 
COOLER. MOSTLY CLOUDY. SHOWERS. LOWS IN THE LOWER 30S.  
HIGHS IN THE UPPER 40S. NORTHWEST WINDS AROUND 15 MPH.    
WEDNESDAY THROUGH THURSDAY
 
MOSTLY CLEAR. LOWS 33 TO 38. HIGHS  
IN THE MID 50S. WEST WINDS 10 TO 15 MPH.    
FRIDAY
 
MOSTLY CLEAR. LOWS AROUND 40. HIGHS IN THE MID 60S.    
SATURDAY
 
COOLER. PARTLY CLOUDY. HIGHS IN THE MID 50S.  
 

 
 
WYZ282-242245-  
SOUTH BIG HORN BASIN/WORLAND BLM-  
INCLUDING THE CITIES OF TEN SLEEP, THERMOPOLIS, AND WORLAND  
253 AM MDT SUN OCT 24 2021  
   
TODAY
 
 
SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY SUNNY THEN  
BECOMING PARTLY CLOUDY.  
MAX TEMPERATURE.....47-52.  
24 HR TREND......3 DEGREES WARMER.  
MIN HUMIDITY........39-45 PERCENT.  
24 HR TREND......9 PERCENT DRIER.  
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH UNTIL 1200, THEN SOUTH  
10 TO 15 MPH WITH HIGHER GUSTS.  
RIDGE TOP WINDS.....SOUTH 10 TO 15 MPH.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTH 10 TO 15 MPH.  
MIXING HEIGHT.......400-600 FT AGL UNTIL 1200, THEN 2800-4200 FT  
AGL.  
SMOKE DISPERSAL.....POOR TO FAIR.  
HAINES INDEX........2.  
   
TONIGHT
 
 
SKY/WEATHER.........MOSTLY CLOUDY THEN BECOMING PARTLY CLOUDY.  
MIN TEMPERATURE.....36-41.  
24 HR TREND......6 DEGREES WARMER.  
MAX HUMIDITY........71-77 PERCENT.  
24 HR TREND......17 PERCENT DRIER.  
HUMIDITY RECOVERY...EXCELLENT.  
20-FOOT WINDS.......SOUTHEAST WINDS AROUND 10 MPH WITH GUSTS TO  
AROUND 15 MPH.  
RIDGE TOP WINDS.....SOUTHEAST AROUND 15 MPH.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTH AROUND 15 MPH.  
MIXING HEIGHT.......400-800 FT AGL.  
SMOKE DISPERSAL.....POOR.  
HAINES INDEX........2.  
   
MONDAY
 
 
SKY/WEATHER.........MOSTLY CLOUDY THEN BECOMING PARTLY CLOUDY.  
MAX TEMPERATURE.....61-66.  
24 HR TREND......11 DEGREES WARMER.  
MIN HUMIDITY........36-42 PERCENT.  
24 HR TREND......1 PERCENT DRIER.  
20-FOOT WINDS.......SOUTH WINDS 10 TO 15 MPH WITH HIGHER GUSTS  
UNTIL 1200, THEN AROUND 20 MPH WITH GUSTS TO  
AROUND 30 MPH.  
RIDGE TOP WINDS.....SOUTH 15 TO 20 MPH UNTIL 1200, THEN AROUND 25  
MPH.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTH 15 TO 20 MPH UNTIL 1200, THEN AROUND 25  
MPH.  
MIXING HEIGHT.......400-1800 FT AGL UNTIL 1500, THEN 4400-4800 FT  
AGL.  
SMOKE DISPERSAL.....POOR UNTIL 1500, THEN GOOD TO VERY GOOD.  
HAINES INDEX........2.  
 
   
FORECAST DAYS 3 THROUGH 7...
 
   
MONDAY NIGHT
 
MOSTLY CLOUDY. SCATTERED SHOWERS AFTER MIDNIGHT.  
LOWS IN THE UPPER 30S. SOUTHWEST WINDS AROUND 15 MPH.    
TUESDAY
 
COOLER. PARTLY CLOUDY. NUMEROUS SHOWERS. LOWS IN THE  
LOWER 30S. HIGHS IN THE UPPER 40S. WEST WINDS AROUND 10 MPH.    
WEDNESDAY
 
MOSTLY CLEAR. SLIGHT CHANCE OF SNOW SHOWERS. LOWS IN  
THE LOWER 30S. HIGHS IN THE MID 50S. WEST WINDS AROUND 10 MPH.    
THURSDAY
 
MOSTLY CLEAR. LOWS IN THE MID 30S. HIGHS IN THE MID  
50S. WINDS GENERALLY LESS THAN 10 MPH.    
FRIDAY
 
PARTLY CLOUDY. LOWS IN THE UPPER 30S. HIGHS AROUND 60.    
SATURDAY
 
PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS IN THE  
AFTERNOON. HIGHS IN THE MID 50S.  
 

 
 
WYZ275-242245-  
NORTH BIG HORN BASIN/WORLAND BLM-  
INCLUDING THE CITIES OF GREYBULL, LOVELL, AND POWELL  
253 AM MDT SUN OCT 24 2021  
   
TODAY
 
 
SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY SUNNY THEN  
BECOMING PARTLY CLOUDY.  
MAX TEMPERATURE.....45-50.  
24 HR TREND......1 DEGREE WARMER.  
MIN HUMIDITY........40-46 PERCENT.  
24 HR TREND......2 PERCENT WETTER.  
20-FOOT WINDS.......SOUTHEAST WINDS 10 TO 15 MPH. GUSTS UP TO 15  
MPH UNTIL 1200, THEN 25 MPH.  
RIDGE TOP WINDS.....SOUTHEAST 15 TO 20 MPH.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTH 15 TO 20 MPH.  
MIXING HEIGHT.......400-600 FT AGL UNTIL 1200, THEN 2600-4200 FT  
AGL.  
SMOKE DISPERSAL.....POOR TO FAIR.  
HAINES INDEX........2.  
   
TONIGHT
 
 
SKY/WEATHER.........PARTLY CLOUDY.  
MIN TEMPERATURE.....36-41.  
24 HR TREND......6 DEGREES WARMER.  
MAX HUMIDITY........64-70 PERCENT.  
24 HR TREND......20 PERCENT DRIER.  
HUMIDITY RECOVERY...GOOD.  
20-FOOT WINDS.......SOUTHEAST WINDS 10 TO 15 MPH AND GUSTY.  
RIDGE TOP WINDS.....SOUTHEAST 15 TO 20 MPH.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTHEAST 15 TO 20 MPH.  
MIXING HEIGHT.......400-1000 FT AGL.  
SMOKE DISPERSAL.....POOR.  
HAINES INDEX........2.  
   
MONDAY
 
 
SKY/WEATHER.........MOSTLY CLOUDY THEN BECOMING PARTLY CLOUDY THEN  
BECOMING MOSTLY CLOUDY.  
MAX TEMPERATURE.....58-63.  
24 HR TREND......9 DEGREES WARMER.  
MIN HUMIDITY........36-42 PERCENT.  
24 HR TREND......1 PERCENT DRIER.  
20-FOOT WINDS.......SOUTHEAST WINDS 15 TO 20 MPH. GUSTS UP TO 25  
MPH UNTIL 1200, THEN 30 MPH.  
RIDGE TOP WINDS.....SOUTHEAST 15 TO 20 MPH UNTIL 1200, THEN SOUTH  
AROUND 25 MPH.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTH 20 TO 25 MPH.  
MIXING HEIGHT.......600-1800 FT AGL UNTIL 1500, THEN 3600-4000 FT  
AGL.  
SMOKE DISPERSAL.....POOR UNTIL 1500, THEN GOOD.  
HAINES INDEX........3.  
 
   
FORECAST DAYS 3 THROUGH 7...
 
   
MONDAY NIGHT
 
CLOUDY. ISOLATED SHOWERS IN THE EVENING, THEN  
SCATTERED SHOWERS AFTER MIDNIGHT. LOWS IN THE UPPER 30S.  
SOUTHWEST WINDS AROUND 15 MPH.    
TUESDAY
 
COOLER. PARTLY CLOUDY. NUMEROUS SHOWERS. LOWS IN THE  
LOWER 30S. HIGHS IN THE LOWER 50S. NORTHWEST WINDS AROUND 15 MPH.   
WEDNESDAY
 
PARTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS AND SNOW  
SHOWERS. LOWS IN THE MID 30S. HIGHS IN THE MID 50S. WEST WINDS  
AROUND 10 MPH.    
THURSDAY
 
MOSTLY CLEAR. LOWS IN THE UPPER 30S. HIGHS IN THE MID  
50S. SOUTH WINDS AROUND 10 MPH.    
FRIDAY
 
PARTLY CLOUDY. LOWS IN THE UPPER 30S. HIGHS IN THE  
UPPER 50S.    
SATURDAY
 
PARTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS. HIGHS IN  
THE LOWER 50S.  
 

 
 
WYZ276-242245-  
CODY FOOTHILLS-  
INCLUDING THE CITIES OF CLARK, CODY, AND MEETEETSE  
253 AM MDT SUN OCT 24 2021  
   
TODAY
 
 
SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY SUNNY THEN  
BECOMING PARTLY CLOUDY.  
MAX TEMPERATURE.....52-57.  
24 HR TREND......4 DEGREES WARMER.  
MIN HUMIDITY........29-35 PERCENT.  
24 HR TREND......1 PERCENT DRIER.  
20-FOOT WINDS.......SOUTH WINDS 10 TO 15 MPH. GUSTS UP TO 20 MPH  
UNTIL 1500, THEN 25 MPH.  
RIDGE TOP WINDS.....SOUTH 15 TO 20 MPH.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTHWEST 15 TO 20 MPH.  
MIXING HEIGHT.......400-800 FT AGL UNTIL 1200, THEN 3400-4400 FT  
AGL.  
SMOKE DISPERSAL.....POOR UNTIL 1200, THEN FAIR TO GOOD.  
HAINES INDEX........3.  
   
TONIGHT
 
 
SKY/WEATHER.........MOSTLY CLOUDY.  
MIN TEMPERATURE.....40-45.  
24 HR TREND......7 DEGREES WARMER.  
MAX HUMIDITY........59-65 PERCENT.  
24 HR TREND......16 PERCENT DRIER.  
HUMIDITY RECOVERY...GOOD.  
20-FOOT WINDS.......SOUTH WINDS 10 TO 15 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.......600-1000 FT AGL.  
SMOKE DISPERSAL.....POOR.  
HAINES INDEX........2.  
   
MONDAY
 
 
SKY/WEATHER.........PARTLY CLOUDY.  
MAX TEMPERATURE.....61-66.  
24 HR TREND......9 DEGREES WARMER.  
MIN HUMIDITY........31-37 PERCENT.  
24 HR TREND......UNCHANGED.  
20-FOOT WINDS.......SOUTH WINDS 10 TO 15 MPH. GUSTS UP TO 20 MPH  
UNTIL 1500, THEN 25 MPH.  
RIDGE TOP WINDS.....SOUTH 15 TO 20 MPH UNTIL 1500, THEN AROUND 25  
MPH.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTH 15 TO 20 MPH UNTIL 1500, THEN AROUND 25  
MPH.  
MIXING HEIGHT.......600-800 FT AGL UNTIL 1200, THEN 2400-4200 FT  
AGL.  
SMOKE DISPERSAL.....POOR TO FAIR UNTIL 1500, THEN GOOD.  
HAINES INDEX........2.  
 
   
FORECAST DAYS 3 THROUGH 7...
 
   
MONDAY NIGHT
 
MOSTLY CLOUDY. SCATTERED SHOWERS IN THE EVENING,  
THEN NUMEROUS SHOWERS AFTER MIDNIGHT. LOWS IN THE UPPER 30S. WEST  
WINDS AROUND 15 MPH.    
TUESDAY
 
COOLER. PARTLY CLOUDY. NUMEROUS SHOWERS AND SNOW  
SHOWERS. LOWS IN THE MID 30S. HIGHS IN THE UPPER 40S. WEST WINDS  
AROUND 15 MPH.    
WEDNESDAY
 
PARTLY CLOUDY WITH CHANCE OF SNOW SHOWERS AND  
SHOWERS. LOWS IN THE MID 30S. HIGHS IN THE LOWER 50S. WEST WINDS  
AROUND 15 MPH.    
THURSDAY
 
PARTLY CLOUDY. LOWS AROUND 40. HIGHS IN THE MID 50S.  
SOUTHWEST WINDS AROUND 10 MPH.    
FRIDAY
 
PARTLY CLOUDY. LOWS IN THE UPPER 30S. HIGHS AROUND 60.    
SATURDAY
 
COOLER. PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND  
SNOW SHOWERS IN THE MORNING, THEN SLIGHT CHANCE OF SHOWERS IN THE  
AFTERNOON. HIGHS IN THE UPPER 40S.  
 

 
 
WYZ287-242245-  
OWL CREEK MOUNTAINS-  
253 AM MDT SUN OCT 24 2021  
   
TODAY
 
 
SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY SUNNY THEN  
BECOMING PARTLY CLOUDY.  
MAX TEMPERATURE.....45-50.  
24 HR TREND......UNCHANGED.  
MIN HUMIDITY........40-46 PERCENT.  
24 HR TREND......UNCHANGED.  
20-FOOT WINDS.......SOUTH WINDS 10 TO 15 MPH. GUSTS UP TO 15 MPH  
UNTIL 1200, THEN 25 MPH.  
RIDGE TOP WINDS.....SOUTH 15 TO 20 MPH.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTHWEST 15 TO 20 MPH.  
MIXING HEIGHT.......400-600 FT AGL UNTIL 1200, THEN 2600-3200 FT  
AGL.  
SMOKE DISPERSAL.....POOR TO FAIR.  
HAINES INDEX........2.  
   
TONIGHT
 
 
SKY/WEATHER.........MOSTLY CLOUDY THEN BECOMING PARTLY CLOUDY.  
MIN TEMPERATURE.....37-42.  
24 HR TREND......6 DEGREES WARMER.  
MAX HUMIDITY........67-73 PERCENT.  
24 HR TREND......27 PERCENT DRIER.  
HUMIDITY RECOVERY...GOOD.  
20-FOOT WINDS.......SOUTH WINDS AROUND 15 MPH AND GUSTY.  
RIDGE TOP WINDS.....SOUTH 15 TO 20 MPH.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTH 15 TO 20 MPH.  
MIXING HEIGHT.......400-800 FT AGL.  
SMOKE DISPERSAL.....POOR.  
HAINES INDEX........2.  
   
MONDAY
 
 
SKY/WEATHER.........PARTLY CLOUDY.  
MAX TEMPERATURE.....59-64.  
24 HR TREND......13 DEGREES WARMER.  
MIN HUMIDITY........35-41 PERCENT.  
24 HR TREND......4 PERCENT DRIER.  
20-FOOT WINDS.......BREEZY. SOUTH WINDS AROUND 15 MPH WITH GUSTS TO  
AROUND 25 MPH UNTIL 1200, THEN 20 TO 25 MPH  
WITH GUSTS TO AROUND 30 MPH.  
RIDGE TOP WINDS.....SOUTH 15 TO 20 MPH UNTIL 1200, THEN AROUND 30  
MPH.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTH 15 TO 20 MPH UNTIL 1200, THEN 30 TO 35  
MPH.  
MIXING HEIGHT.......400-2200 FT AGL UNTIL 1500, THEN 4000-4400 FT  
AGL.  
SMOKE DISPERSAL.....POOR UNTIL 1500, THEN VERY GOOD.  
HAINES INDEX........2.  
 
   
FORECAST DAYS 3 THROUGH 7...
 
   
MONDAY NIGHT
 
MOSTLY CLOUDY. SCATTERED SHOWERS IN THE EVENING,  
THEN NUMEROUS SHOWERS AFTER MIDNIGHT. LOWS IN THE MID 30S.  
SOUTHWEST WINDS AROUND 15 MPH.    
TUESDAY
 
MUCH COLDER. PARTLY CLOUDY. NUMEROUS SHOWERS AND SNOW  
SHOWERS. LOWS IN THE LOWER 30S. HIGHS IN THE LOWER 40S. NORTHWEST  
WINDS AROUND 10 MPH.    
WEDNESDAY
 
PARTLY CLOUDY WITH CHANCE OF SNOW SHOWERS AND SLIGHT  
CHANCE OF SHOWERS. LOWS IN THE LOWER 30S. HIGHS IN THE UPPER 40S.  
WEST WINDS AROUND 15 MPH.    
THURSDAY
 
MOSTLY CLEAR. LOWS IN THE MID 30S. HIGHS IN THE LOWER  
50S. SOUTHWEST WINDS AROUND 10 MPH.    
FRIDAY
 
PARTLY CLOUDY. LOWS IN THE UPPER 30S. HIGHS IN THE MID  
50S.    
SATURDAY
 
PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS IN THE  
AFTERNOON. HIGHS IN THE UPPER 40S.  
 

 
 
WYZ286-242245-  
ABSAROKA MOUNTAINS/NORTH SHOSHONE NF-  
INCLUDING THE CITY OF PAHASKA  
253 AM MDT SUN OCT 24 2021  
   
TODAY
 
 
SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY CLOUDY.  
SCATTERED SNOW SHOWERS EARLY IN THE MORNING.  
CHANCE OF SNOW 40 PERCENT.  
MAX TEMPERATURE.....43-48.  
24 HR TREND......2 DEGREES WARMER.  
MIN HUMIDITY........45-51 PERCENT.  
24 HR TREND......4 PERCENT DRIER.  
20-FOOT WINDS.......SOUTHWEST WINDS AROUND 15 MPH WITH GUSTS TO  
AROUND 25 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.......600-1200 FT AGL UNTIL 1200, THEN 2800-3600 FT  
AGL.  
SMOKE DISPERSAL.....POOR TO FAIR.  
HAINES INDEX........2.  
   
TONIGHT
 
 
SKY/WEATHER.........MOSTLY CLOUDY. SCATTERED RAIN SHOWERS AND SNOW  
SHOWERS. CHANCE OF PRECIPITATION 50 PERCENT.  
MIN TEMPERATURE.....34-39.  
24 HR TREND......7 DEGREES WARMER.  
MAX HUMIDITY........74-80 PERCENT.  
24 HR TREND......11 PERCENT DRIER.  
HUMIDITY RECOVERY...EXCELLENT.  
20-FOOT WINDS.......SOUTHWEST 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.....SOUTHWEST 20 TO 25 MPH.  
MIXING HEIGHT.......800-1400 FT AGL.  
SMOKE DISPERSAL.....POOR.  
HAINES INDEX........2.  
   
MONDAY
 
 
SKY/WEATHER.........MOSTLY CLOUDY. SCATTERED RAIN SHOWERS AND SNOW  
SHOWERS. CHANCE OF PRECIPITATION 50 PERCENT.  
MAX TEMPERATURE.....49-54.  
24 HR TREND......9 DEGREES WARMER.  
MIN HUMIDITY........55-61 PERCENT.  
24 HR TREND......4 PERCENT WETTER.  
20-FOOT WINDS.......BREEZY. SOUTHWEST WINDS 20 TO 25 MPH. GUSTS UP  
TO 35 MPH UNTIL 1200, THEN 40 MPH.  
RIDGE TOP WINDS.....SOUTHWEST 25 TO 30 MPH.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT UNTIL 1200, THEN 10 PERCENT.  
TRANSPORT WINDS.....SOUTHWEST 30 TO 35 MPH.  
MIXING HEIGHT.......1200-3200 FT AGL UNTIL 1500, THEN 3200-3600 FT  
AGL.  
SMOKE DISPERSAL.....POOR UNTIL 1200, THEN GOOD TO VERY GOOD.  
HAINES INDEX........2.  
 
   
FORECAST DAYS 3 THROUGH 7...
 
   
MONDAY NIGHT
 
SHOWERS AND SNOW SHOWERS. LOWS IN THE LOWER 30S.  
WEST WINDS AROUND 15 MPH.    
TUESDAY
 
COLDER. MOSTLY CLOUDY. NUMEROUS SNOW SHOWERS. LOWS IN  
THE MID 20S. HIGHS IN THE UPPER 30S. WEST WINDS AROUND 15 MPH.    
WEDNESDAY
 
PARTLY CLOUDY. CHANCE OF SNOW SHOWERS. LOWS IN THE  
UPPER 20S. HIGHS IN THE UPPER 30S. WEST WINDS AROUND 20 MPH.    
THURSDAY
 
PARTLY CLOUDY. LOWS IN THE LOWER 30S. HIGHS IN THE  
MID 40S. WEST WINDS AROUND 15 MPH.    
FRIDAY
 
PARTLY CLOUDY WITH SLIGHT CHANCE OF SNOW SHOWERS. LOWS  
IN THE LOWER 30S. HIGHS IN THE UPPER 40S.    
SATURDAY
 
PARTLY CLOUDY. SLIGHT CHANCE OF SNOW SHOWERS IN THE  
MORNING, THEN CHANCE OF SNOW SHOWERS AND SLIGHT CHANCE OF SHOWERS  
IN THE AFTERNOON. HIGHS AROUND 40.  
 

 
 
WYZ140-242245-  
YELLOWSTONE NATIONAL PARK-  
INCLUDING THE CITIES OF LAKE, MAMMOTH, AND OLD FAITHFUL  
253 AM MDT SUN OCT 24 2021  
   
TODAY
 
 
SKY/WEATHER.........MOSTLY CLOUDY. SCATTERED SNOW SHOWERS THROUGH  
THE DAY. SCATTERED RAIN SHOWERS IN THE  
AFTERNOON. CHANCE OF PRECIPITATION 50 PERCENT.  
MAX TEMPERATURE.....38-43.  
24 HR TREND......4 DEGREES WARMER.  
MIN HUMIDITY........61-67 PERCENT.  
24 HR TREND......2 PERCENT DRIER.  
20-FOOT WINDS.......SOUTH WINDS 15 TO 20 MPH. GUSTS UP TO 25 MPH  
UNTIL 1500, THEN 30 MPH.  
RIDGE TOP WINDS.....SOUTH 15 TO 20 MPH UNTIL 1200, THEN SOUTHWEST  
AROUND 25 MPH.  
LAL.................1.  
CHC OF WETTING RAIN.10 PERCENT UNTIL 1200, THEN ZERO PERCENT.  
TRANSPORT WINDS.....SOUTH 15 TO 20 MPH UNTIL 1200, THEN SOUTHWEST  
AROUND 25 MPH.  
MIXING HEIGHT.......1200-1600 FT AGL UNTIL 1200, THEN 3200-3600 FT  
AGL.  
SMOKE DISPERSAL.....FAIR TO GOOD.  
HAINES INDEX........2.  
   
TONIGHT
 
 
SKY/WEATHER.........CLOUDY. SCATTERED SNOW SHOWERS AND RAIN SHOWERS  
EARLY IN THE EVENING, THEN NUMEROUS SNOW  
SHOWERS IN THE LATE EVENING AND EARLY MORNING.  
NUMEROUS RAIN SHOWERS IN THE LATE EVENING AND  
OVERNIGHT. NO SNOW ACCUMULATION. CHANCE OF  
PRECIPITATION 70 PERCENT.  
MIN TEMPERATURE.....34-39.  
24 HR TREND......7 DEGREES WARMER.  
MAX HUMIDITY........85-91 PERCENT.  
24 HR TREND......8 PERCENT DRIER.  
HUMIDITY RECOVERY...EXCELLENT.  
20-FOOT WINDS.......SOUTH WINDS 15 TO 20 MPH WITH GUSTS TO AROUND  
30 MPH.  
RIDGE TOP WINDS.....SOUTH 20 TO 25 MPH.  
LAL.................1.  
CHC OF WETTING RAIN.30 PERCENT UNTIL 2400, THEN 50 PERCENT.  
TRANSPORT WINDS.....SOUTH 20 TO 25 MPH UNTIL 0300, THEN AROUND 30  
MPH.  
MIXING HEIGHT.......1200-1800 FT AGL.  
SMOKE DISPERSAL.....POOR.  
HAINES INDEX........2.  
   
MONDAY
 
 
SKY/WEATHER.........CLOUDY. SCATTERED SNOW SHOWERS EARLY IN THE  
MORNING. NUMEROUS RAIN SHOWERS UNTIL LATE  
AFTERNOON, THEN RAIN SHOWERS LATE IN THE  
AFTERNOON. NO SNOW ACCUMULATION. CHANCE OF  
PRECIPITATION 90 PERCENT.  
MAX TEMPERATURE.....43-48.  
24 HR TREND......5 DEGREES WARMER.  
MIN HUMIDITY........68-74 PERCENT.  
24 HR TREND......12 PERCENT WETTER.  
20-FOOT WINDS.......BREEZY. SOUTH WINDS 20 TO 25 MPH WITH GUSTS TO  
AROUND 35 MPH UNTIL 1500, THEN SOUTHWEST AROUND  
15 MPH WITH GUSTS TO AROUND 25 MPH.  
RIDGE TOP WINDS.....SOUTH 25 TO 30 MPH.  
LAL.................1.  
CHC OF WETTING RAIN.55 PERCENT UNTIL 1200, THEN 70 PERCENT.  
TRANSPORT WINDS.....SOUTH AROUND 30 MPH.  
MIXING HEIGHT.......1400-2400 FT AGL.  
SMOKE DISPERSAL.....FAIR TO GOOD.  
HAINES INDEX........2.  
 
   
FORECAST DAYS 3 THROUGH 7...
 
   
MONDAY NIGHT
 
SNOW SHOWERS AND SHOWERS IN THE EVENING, THEN  
SNOW SHOWERS AFTER MIDNIGHT. LOWS IN THE UPPER 20S. SOUTHWEST  
WINDS AROUND 10 MPH.    
TUESDAY
 
COLDER. MOSTLY CLOUDY WITH NUMEROUS SNOW SHOWERS. LOWS  
IN THE MID 20S. HIGHS IN THE MID 30S. WEST WINDS AROUND 15 MPH.    
WEDNESDAY
 
MOSTLY CLOUDY WITH CHANCE OF SNOW SHOWERS. LOWS IN  
THE MID 20S. HIGHS IN THE MID 30S. SOUTHWEST WINDS AROUND 15 MPH.   
THURSDAY
 
PARTLY CLOUDY WITH SLIGHT CHANCE OF SNOW SHOWERS.  
LOWS IN THE UPPER 20S. HIGHS AROUND 40. SOUTHWEST WINDS AROUND  
10 MPH.    
FRIDAY
 
PARTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS AND SNOW  
SHOWERS. LOWS IN THE MID 20S. HIGHS IN THE MID 40S.    
SATURDAY
 
MOSTLY CLOUDY WITH CHANCE OF SNOW SHOWERS. HIGHS IN  
THE UPPER 30S.  
 

 
 
WYZ415-242245-  
NORTH ZONE BRIDGER TETON NF AND GRAND TETON NP-  
INCLUDING THE CITIES OF JACKSON AND MORAN  
253 AM MDT SUN OCT 24 2021  
   
TODAY
 
 
SKY/WEATHER.........MOSTLY CLOUDY. SCATTERED SNOW SHOWERS THROUGH  
THE DAY. SCATTERED RAIN SHOWERS IN THE  
AFTERNOON. CHANCE OF PRECIPITATION 50 PERCENT.  
MAX TEMPERATURE.....39-44.  
24 HR TREND......4 DEGREES WARMER.  
MIN HUMIDITY........60-66 PERCENT.  
24 HR TREND......6 PERCENT DRIER.  
20-FOOT WINDS.......SOUTH WINDS 10 TO 15 MPH. GUSTS UP TO 20 MPH  
UNTIL 1500, THEN 25 MPH.  
RIDGE TOP WINDS.....SOUTH 15 TO 20 MPH.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTH 15 TO 20 MPH.  
MIXING HEIGHT.......1000-1200 FT AGL UNTIL 1200, THEN 3000-3400 FT  
AGL.  
SMOKE DISPERSAL.....POOR TO FAIR.  
HAINES INDEX........2.  
   
TONIGHT
 
 
SKY/WEATHER.........CLOUDY. RAIN SHOWERS AND SNOW SHOWERS IN THE  
EVENING, THEN NUMEROUS RAIN SHOWERS AND SNOW  
SHOWERS AFTER MIDNIGHT. NO SNOW ACCUMULATION.  
CHANCE OF PRECIPITATION 90 PERCENT.  
MIN TEMPERATURE.....32-37.  
24 HR TREND......8 DEGREES WARMER.  
MAX HUMIDITY........84-90 PERCENT.  
24 HR TREND......7 PERCENT DRIER.  
HUMIDITY RECOVERY...EXCELLENT.  
20-FOOT WINDS.......SOUTH WINDS AROUND 15 MPH AND GUSTY.  
RIDGE TOP WINDS.....SOUTH AROUND 20 MPH.  
LAL.................1.  
CHC OF WETTING RAIN.50 PERCENT UNTIL 2400, THEN 40 PERCENT.  
TRANSPORT WINDS.....SOUTH AROUND 20 MPH.  
MIXING HEIGHT.......1000-1400 FT AGL.  
SMOKE DISPERSAL.....POOR.  
HAINES INDEX........2.  
   
MONDAY
 
 
SKY/WEATHER.........MOSTLY CLOUDY. SCATTERED SNOW SHOWERS IN THE  
MORNING. SCATTERED RAIN SHOWERS THROUGH THE  
DAY. SCATTERED SNOW SHOWERS LATE IN THE  
AFTERNOON. CHANCE OF PRECIPITATION 50 PERCENT.  
MAX TEMPERATURE.....44-49.  
24 HR TREND......4 DEGREES WARMER.  
MIN HUMIDITY........71-77 PERCENT.  
24 HR TREND......17 PERCENT WETTER.  
20-FOOT WINDS.......BREEZY. SOUTH WINDS 15 TO 20 MPH UNTIL 1200,  
THEN 20 TO 25 MPH. GUSTS UP TO 30 MPH.  
RIDGE TOP WINDS.....SOUTH 20 TO 25 MPH UNTIL 1200, THEN 25 TO 30  
MPH.  
LAL.................1.  
CHC OF WETTING RAIN.30 PERCENT UNTIL 1200, THEN 50 PERCENT.  
TRANSPORT WINDS.....SOUTH 20 TO 25 MPH UNTIL 1200, THEN AROUND 30  
MPH.  
MIXING HEIGHT.......1000-2800 FT AGL.  
SMOKE DISPERSAL.....FAIR TO GOOD.  
HAINES INDEX........2.  
 
   
FORECAST DAYS 3 THROUGH 7...
 
   
MONDAY NIGHT
 
SHOWERS AND SNOW SHOWERS. LOWS IN THE UPPER 20S.  
SOUTHWEST WINDS AROUND 10 MPH.    
TUESDAY
 
COLDER. SNOW SHOWERS LIKELY. LOWS IN THE MID 20S.  
HIGHS IN THE MID 30S. WEST WINDS AROUND 15 MPH.    
WEDNESDAY
 
MOSTLY CLOUDY WITH SNOW SHOWERS LIKELY. LOWS IN THE  
UPPER 20S. HIGHS IN THE MID 30S. SOUTHWEST WINDS AROUND 15 MPH.    
THURSDAY
 
PARTLY CLOUDY WITH SLIGHT CHANCE OF SNOW SHOWERS.  
LOWS IN THE UPPER 20S. HIGHS IN THE LOWER 40S. SOUTHWEST WINDS  
AROUND 10 MPH.    
FRIDAY
 
PARTLY CLOUDY. LOWS IN THE UPPER 20S. HIGHS IN THE MID  
40S.    
SATURDAY
 
PARTLY CLOUDY. SLIGHT CHANCE OF SNOW SHOWERS IN THE  
MORNING, THEN SLIGHT CHANCE OF SHOWERS AND SNOW SHOWERS IN THE  
AFTERNOON. HIGHS IN THE UPPER 30S.  
 

 
 
WYZ416-242245-  
WEST WIND RIVER MOUNTAINS/EAST ZONE BRIDGER TETON NF-  
253 AM MDT SUN OCT 24 2021  
   
TODAY
 
 
SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY CLOUDY.  
ISOLATED SNOW SHOWERS EARLY IN THE MORNING.  
ISOLATED SNOW SHOWERS LATE IN THE AFTERNOON,  
THEN SCATTERED SNOW SHOWERS LATE IN THE  
AFTERNOON. CHANCE OF SNOW 50 PERCENT.  
MAX TEMPERATURE.....35-40.  
24 HR TREND......1 DEGREE WARMER.  
MIN HUMIDITY........61-67 PERCENT.  
24 HR TREND......6 PERCENT WETTER.  
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH UNTIL 0900, THEN SOUTH  
10 TO 15 MPH WITH GUSTS TO AROUND 25 MPH.  
RIDGE TOP WINDS.....SOUTHWEST 15 TO 20 MPH UNTIL 1500, THEN SOUTH.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTHWEST 15 TO 20 MPH.  
MIXING HEIGHT.......600-2600 FT AGL.  
SMOKE DISPERSAL.....POOR TO FAIR.  
HAINES INDEX........2.  
   
TONIGHT
 
 
SKY/WEATHER.........MOSTLY CLOUDY. NUMEROUS SNOW SHOWERS AND RAIN  
SHOWERS. NO SNOW ACCUMULATION. CHANCE OF  
PRECIPITATION 70 PERCENT.  
MIN TEMPERATURE.....29-34.  
24 HR TREND......8 DEGREES WARMER.  
MAX HUMIDITY........88-94 PERCENT.  
24 HR TREND......4 PERCENT DRIER.  
HUMIDITY RECOVERY...EXCELLENT.  
20-FOOT WINDS.......SOUTH WINDS AROUND 15 MPH WITH GUSTS TO AROUND  
25 MPH.  
RIDGE TOP WINDS.....SOUTH AROUND 20 MPH.  
LAL.................1.  
CHC OF WETTING RAIN.55 PERCENT UNTIL 2400, THEN 25 PERCENT.  
TRANSPORT WINDS.....SOUTH AROUND 20 MPH.  
MIXING HEIGHT.......800-1200 FT AGL.  
SMOKE DISPERSAL.....POOR.  
HAINES INDEX........2.  
   
MONDAY
 
 
SKY/WEATHER.........MOSTLY CLOUDY. SCATTERED RAIN SHOWERS AND SNOW  
SHOWERS THROUGH THE DAY. CHANCE OF  
PRECIPITATION 50 PERCENT.  
MAX TEMPERATURE.....45-50.  
24 HR TREND......9 DEGREES WARMER.  
MIN HUMIDITY........59-65 PERCENT.  
24 HR TREND......1 PERCENT WETTER.  
20-FOOT WINDS.......BREEZY. SOUTH WINDS 15 TO 20 MPH UNTIL 1200,  
THEN 20 TO 25 MPH. GUSTS UP TO 30 MPH.  
RIDGE TOP WINDS.....SOUTH 20 TO 25 MPH UNTIL 1500, THEN AROUND 30  
MPH.  
LAL.................1.  
CHC OF WETTING RAIN.10 PERCENT UNTIL 1200, THEN 25 PERCENT.  
TRANSPORT WINDS.....SOUTH 25 TO 30 MPH.  
MIXING HEIGHT.......1000-2600 FT AGL UNTIL 1500, THEN 3000-3600 FT  
AGL.  
SMOKE DISPERSAL.....FAIR TO GOOD.  
HAINES INDEX........3.  
 
   
FORECAST DAYS 3 THROUGH 7...
 
   
MONDAY NIGHT
 
SHOWERS AND SNOW SHOWERS. LOWS IN THE UPPER 20S.  
SOUTHWEST WINDS AROUND 15 MPH.    
TUESDAY
 
COLDER. MOSTLY CLOUDY WITH NUMEROUS SNOW SHOWERS. LOWS  
IN THE LOWER 20S. HIGHS IN THE MID 30S. WEST WINDS AROUND 15 MPH.   
WEDNESDAY
 
MOSTLY CLOUDY WITH CHANCE OF SNOW SHOWERS. LOWS IN  
THE MID 20S. HIGHS IN THE MID 30S. WEST WINDS AROUND 15 MPH.    
THURSDAY
 
PARTLY CLOUDY. LOWS IN THE UPPER 20S. HIGHS IN THE  
LOWER 40S. WEST WINDS AROUND 10 MPH.    
FRIDAY
 
PARTLY CLOUDY. LOWS IN THE MID 20S. HIGHS IN THE MID  
40S.    
SATURDAY
 
PARTLY CLOUDY WITH SLIGHT CHANCE OF SNOW SHOWERS.  
HIGHS IN THE UPPER 30S.  
 

 
 
WYZ288-242245-  
EAST WIND RIVER MOUNTAINS/SOUTH SHOSHONE NF-  
INCLUDING THE CITIES OF DUBOIS AND SOUTH PASS  
253 AM MDT SUN OCT 24 2021  
   
TODAY
 
 
SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY CLOUDY.  
ISOLATED SNOW SHOWERS LATE IN THE AFTERNOON.  
CHANCE OF SNOW 20 PERCENT.  
MAX TEMPERATURE.....37-42.  
24 HR TREND......1 DEGREE WARMER.  
MIN HUMIDITY........54-60 PERCENT.  
24 HR TREND......4 PERCENT WETTER.  
20-FOOT WINDS.......SOUTHWEST WINDS 15 TO 20 MPH. GUSTS UP TO 25  
MPH UNTIL 1200, THEN 30 MPH.  
RIDGE TOP WINDS.....WEST 15 TO 20 MPH UNTIL 1200, THEN SOUTHWEST  
AROUND 25 MPH.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....WEST 15 TO 20 MPH UNTIL 1200, THEN SOUTHWEST  
AROUND 25 MPH.  
MIXING HEIGHT.......800-2800 FT AGL.  
SMOKE DISPERSAL.....POOR TO FAIR.  
HAINES INDEX........2.  
   
TONIGHT
 
 
SKY/WEATHER.........MOSTLY CLOUDY. SCATTERED SNOW SHOWERS IN THE  
EVENING. SCATTERED RAIN SHOWERS THROUGH THE  
NIGHT. NUMEROUS SNOW SHOWERS AFTER MIDNIGHT. NO  
SNOW ACCUMULATION. CHANCE OF PRECIPITATION 70  
PERCENT.  
MIN TEMPERATURE.....32-37.  
24 HR TREND......8 DEGREES WARMER.  
MAX HUMIDITY........79-85 PERCENT.  
24 HR TREND......12 PERCENT DRIER.  
HUMIDITY RECOVERY...EXCELLENT.  
20-FOOT WINDS.......SOUTHWEST WINDS AROUND 20 MPH WITH GUSTS TO  
AROUND 35 MPH.  
RIDGE TOP WINDS.....SOUTHWEST AROUND 25 MPH.  
LAL.................1.  
CHC OF WETTING RAIN.10 PERCENT.  
TRANSPORT WINDS.....SOUTHWEST 25 TO 30 MPH.  
MIXING HEIGHT.......800-1000 FT AGL.  
SMOKE DISPERSAL.....POOR.  
HAINES INDEX........2.  
   
MONDAY
 
 
SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY CLOUDY.  
SCATTERED RAIN SHOWERS AND SNOW SHOWERS. CHANCE  
OF PRECIPITATION 50 PERCENT.  
MAX TEMPERATURE.....48-53.  
24 HR TREND......13 DEGREES WARMER.  
MIN HUMIDITY........60-66 PERCENT.  
24 HR TREND......5 PERCENT DRIER.  
20-FOOT WINDS.......WINDY. SOUTHWEST WINDS 25 TO 30 MPH WITH GUSTS  
TO AROUND 45 MPH UNTIL 1200, THEN AROUND 35 MPH  
WITH GUSTS TO AROUND 50 MPH UNTIL 1500, THEN  
AROUND 25 MPH WITH GUSTS TO AROUND 40 MPH.  
RIDGE TOP WINDS.....SOUTHWEST 30 TO 35 MPH UNTIL 1200, THEN 35 TO  
40 MPH.  
LAL.................1.  
CHC OF WETTING RAIN.LESS THAN 5 PERCENT.  
TRANSPORT WINDS.....SOUTHWEST 35 TO 40 MPH UNTIL 1200, THEN 40 TO  
45 MPH.  
MIXING HEIGHT.......800-2600 FT AGL UNTIL 1500, THEN 3200-4200 FT  
AGL.  
SMOKE DISPERSAL.....POOR UNTIL 1200, THEN GOOD TO VERY GOOD.  
HAINES INDEX........3.  
 
   
FORECAST DAYS 3 THROUGH 7...
 
   
MONDAY NIGHT
 
SNOW SHOWERS AND SCATTERED SHOWERS IN THE  
EVENING, THEN SNOW SHOWERS AND NUMEROUS SHOWERS AFTER MIDNIGHT.  
LOWS IN THE LOWER 30S. SOUTHWEST WINDS AROUND 20 MPH.    
TUESDAY
 
COLDER. MOSTLY CLOUDY. NUMEROUS SNOW SHOWERS AND  
SHOWERS. LOWS IN THE MID 20S. HIGHS IN THE UPPER 30S. WEST WINDS  
AROUND 15 MPH.    
WEDNESDAY
 
PARTLY CLOUDY WITH CHANCE OF SNOW SHOWERS. LOWS IN  
THE UPPER 20S. HIGHS IN THE UPPER 30S. WEST WINDS AROUND 20 MPH.    
THURSDAY
 
PARTLY CLOUDY. LOWS IN THE LOWER 30S. HIGHS IN THE  
MID 40S. WEST WINDS AROUND 15 MPH.    
FRIDAY
 
PARTLY CLOUDY. LOWS IN THE LOWER 30S. HIGHS IN THE  
UPPER 40S.    
SATURDAY
 
PARTLY CLOUDY. SLIGHT CHANCE OF SNOW SHOWERS IN THE  
AFTERNOON. HIGHS IN THE LOWER 40S.  
 

 
 
WYZ414-242245-  
SALT AND WYOMING RANGES/WEST ZONE BRIDGER TETON NF-  
INCLUDING THE CITY OF AFTON  
253 AM MDT SUN OCT 24 2021  
   
TODAY
 
 
SKY/WEATHER.........MOSTLY CLOUDY THEN BECOMING PARTLY CLOUDY THEN  
BECOMING MOSTLY CLOUDY. ISOLATED SNOW SHOWERS  
EARLY IN THE MORNING. ISOLATED RAIN SHOWERS AND  
SNOW SHOWERS LATE IN THE AFTERNOON, THEN  
SCATTERED RAIN SHOWERS AND SNOW SHOWERS LATE IN  
THE AFTERNOON. CHANCE OF PRECIPITATION 50  
PERCENT.  
MAX TEMPERATURE.....39-44.  
24 HR TREND......6 DEGREES WARMER.  
MIN HUMIDITY........61-67 PERCENT.  
24 HR TREND......15 PERCENT DRIER.  
20-FOOT WINDS.......SOUTH WINDS 10 TO 15 MPH. GUSTS UP TO 15 MPH  
UNTIL 1200, THEN 25 MPH.  
RIDGE TOP WINDS.....SOUTH 15 TO 20 MPH.  
LAL.................1.  
CHC OF WETTING RAIN.LESS THAN 5 PERCENT.  
TRANSPORT WINDS.....SOUTH 15 TO 20 MPH.  
MIXING HEIGHT.......800-2800 FT AGL UNTIL 1500, THEN 2800-3000 FT  
AGL.  
SMOKE DISPERSAL.....POOR TO FAIR.  
HAINES INDEX........2.  
   
TONIGHT
 
 
SKY/WEATHER.........MOSTLY CLOUDY. RAIN SHOWERS AND SNOW SHOWERS IN  
THE EVENING, THEN NUMEROUS RAIN SHOWERS AND  
SNOW SHOWERS AFTER MIDNIGHT. NO SNOW  
ACCUMULATION. CHANCE OF PRECIPITATION 80  
PERCENT.  
MIN TEMPERATURE.....33-38.  
24 HR TREND......8 DEGREES WARMER.  
MAX HUMIDITY........85-91 PERCENT.  
24 HR TREND......6 PERCENT DRIER.  
HUMIDITY RECOVERY...EXCELLENT.  
20-FOOT WINDS.......SOUTH WINDS AROUND 15 MPH AND GUSTY.  
RIDGE TOP WINDS.....SOUTH AROUND 20 MPH.  
LAL.................1.  
CHC OF WETTING RAIN.65 PERCENT UNTIL 2400, THEN 10 PERCENT.  
TRANSPORT WINDS.....SOUTH AROUND 20 MPH.  
MIXING HEIGHT.......800-1400 FT AGL.  
SMOKE DISPERSAL.....POOR.  
HAINES INDEX........2.  
   
MONDAY
 
 
SKY/WEATHER.........MOSTLY CLOUDY. SCATTERED RAIN SHOWERS AND SNOW  
SHOWERS THROUGH THE DAY. CHANCE OF  
PRECIPITATION 50 PERCENT.  
MAX TEMPERATURE.....44-49.  
24 HR TREND......8 DEGREES WARMER.  
MIN HUMIDITY........66-72 PERCENT.  
24 HR TREND......4 PERCENT WETTER.  
20-FOOT WINDS.......BREEZY. SOUTH 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.....SOUTH 20 TO 25 MPH UNTIL 1200, THEN AROUND 30  
MPH.  
LAL.................1.  
CHC OF WETTING RAIN.5 PERCENT UNTIL 1200, THEN 25 PERCENT.  
TRANSPORT WINDS.....SOUTH 25 TO 30 MPH UNTIL 1200, THEN 35 TO 40  
MPH.  
MIXING HEIGHT.......1000-1400 FT AGL UNTIL 1200, THEN 3200-4000 FT  
AGL.  
SMOKE DISPERSAL.....POOR UNTIL 1200, THEN VERY GOOD.  
HAINES INDEX........2.  
 
   
FORECAST DAYS 3 THROUGH 7...
 
   
MONDAY NIGHT
 
SHOWERS AND SNOW SHOWERS. LOWS IN THE UPPER 20S.  
WEST WINDS AROUND 15 MPH.    
TUESDAY
 
COLDER. CLOUDY WITH NUMEROUS SNOW SHOWERS. LOWS IN THE  
UPPER 20S. HIGHS IN THE MID 30S. WEST WINDS AROUND 15 MPH.    
WEDNESDAY
 
MOSTLY CLOUDY WITH SNOW SHOWERS LIKELY AND CHANCE OF  
SHOWERS. LOWS AROUND 30. HIGHS IN THE MID 30S. WEST WINDS AROUND  
15 MPH.    
THURSDAY
 
PARTLY CLOUDY. LOWS IN THE UPPER 20S. HIGHS IN THE  
MID 40S. WEST WINDS AROUND 10 MPH.    
FRIDAY
 
PARTLY CLOUDY. LOWS IN THE UPPER 20S. HIGHS IN THE  
UPPER 40S.    
SATURDAY
 
PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND SNOW  
SHOWERS IN THE AFTERNOON. HIGHS IN THE LOWER 40S.  
 

 
 
WYZ278-242245-  
UPPER GREEN RIVER BASIN/ROCK SPRINGS BLM-  
INCLUDING THE CITIES OF BIG PINEY, FARSON, AND PINEDALE  
253 AM MDT SUN OCT 24 2021  
   
TODAY
 
 
SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY CLOUDY.  
SCATTERED SNOW SHOWERS AND ISOLATED RAIN  
SHOWERS LATE IN THE AFTERNOON. CHANCE OF  
PRECIPITATION 40 PERCENT.  
MAX TEMPERATURE.....40-45.  
24 HR TREND......2 DEGREES WARMER.  
MIN HUMIDITY........52-58 PERCENT.  
24 HR TREND......12 PERCENT DRIER.  
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH UNTIL 1200, THEN SOUTH  
AROUND 15 MPH WITH HIGHER GUSTS.  
RIDGE TOP WINDS.....SOUTH 10 TO 15 MPH UNTIL 1500, THEN AROUND 20  
MPH.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....WEST AROUND 10 MPH UNTIL 0900, THEN SOUTH UNTIL  
1500, THEN AROUND 20 MPH.  
MIXING HEIGHT.......400-2400 FT AGL UNTIL 1500, THEN 2800-3000 FT  
AGL.  
SMOKE DISPERSAL.....POOR TO FAIR.  
HAINES INDEX........2.  
   
TONIGHT
 
 
SKY/WEATHER.........MOSTLY CLOUDY. NUMEROUS SNOW SHOWERS IN THE  
EVENING. SCATTERED RAIN SHOWERS THROUGH THE  
NIGHT. NO SNOW ACCUMULATION. CHANCE OF  
PRECIPITATION 70 PERCENT.  
MIN TEMPERATURE.....32-37.  
24 HR TREND......7 DEGREES WARMER.  
MAX HUMIDITY........83-89 PERCENT.  
24 HR TREND......5 PERCENT DRIER.  
HUMIDITY RECOVERY...EXCELLENT.  
20-FOOT WINDS.......SOUTHWEST WINDS AROUND 10 MPH UNTIL 2100, THEN  
EAST. GUSTS UP TO 15 MPH.  
RIDGE TOP WINDS.....SOUTHWEST AROUND 15 MPH UNTIL 2100, THEN EAST.  
LAL.................1.  
CHC OF WETTING RAIN.15 PERCENT UNTIL 2400, THEN ZERO PERCENT.  
TRANSPORT WINDS.....SOUTH 10 TO 15 MPH.  
MIXING HEIGHT.......400-1200 FT AGL.  
SMOKE DISPERSAL.....POOR.  
HAINES INDEX........2.  
   
MONDAY
 
 
SKY/WEATHER.........MOSTLY CLOUDY. ISOLATED RAIN SHOWERS EARLY IN  
THE MORNING. ISOLATED SNOW SHOWERS EARLY IN THE  
MORNING. ISOLATED RAIN SHOWERS IN THE  
AFTERNOON. CHANCE OF PRECIPITATION 20 PERCENT.  
MAX TEMPERATURE.....52-57.  
24 HR TREND......14 DEGREES WARMER.  
MIN HUMIDITY........49-55 PERCENT.  
24 HR TREND......9 PERCENT DRIER.  
20-FOOT WINDS.......SOUTHEAST WINDS AROUND 10 MPH AND GUSTY UNTIL  
1200, THEN SOUTH AROUND 20 MPH WITH GUSTS TO  
AROUND 30 MPH.  
RIDGE TOP WINDS.....SOUTHEAST AROUND 15 MPH UNTIL 1200, THEN SOUTH  
AROUND 25 MPH.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTH AROUND 15 MPH UNTIL 1200, THEN 25 TO 30  
MPH.  
MIXING HEIGHT.......600-800 FT AGL UNTIL 1200. 5000-5600 FT AGL  
AFTER 1500.  
SMOKE DISPERSAL.....POOR TO FAIR UNTIL 1500, THEN VERY GOOD TO  
EXCELLENT.  
HAINES INDEX........3.  
 
   
FORECAST DAYS 3 THROUGH 7...
 
   
MONDAY NIGHT
 
SHOWERS IN THE EVENING, THEN SHOWERS AND SNOW  
SHOWERS AFTER MIDNIGHT. LOWS IN THE LOWER 30S. SOUTHWEST WINDS  
AROUND 15 MPH.    
TUESDAY
 
COLDER. PARTLY CLOUDY. SCATTERED SNOW SHOWERS AND  
SHOWERS. LOWS IN THE MID 20S. HIGHS IN THE LOWER 40S. WEST WINDS  
AROUND 15 MPH.    
WEDNESDAY
 
PARTLY CLOUDY WITH CHANCE OF SNOW SHOWERS AND SLIGHT  
CHANCE OF SHOWERS. LOWS IN THE UPPER 20S. HIGHS IN THE LOWER 40S.  
WEST WINDS AROUND 15 MPH.    
THURSDAY
 
PARTLY CLOUDY. LOWS IN THE UPPER 20S. HIGHS IN THE  
UPPER 40S. NORTHWEST WINDS AROUND 10 MPH.    
FRIDAY THROUGH SATURDAY
 
PARTLY CLOUDY. LOWS IN THE UPPER 20S.  
HIGHS 48 TO 53.  
 

 
 
WYZ277-242245-  
LINCOLN AND UINTA COUNTIES/LOWER ELEVATIONS-  
INCLUDING THE CITIES OF EVANSTON, FORT BRIDGER, AND KEMMERER  
253 AM MDT SUN OCT 24 2021  
   
TODAY
 
 
SKY/WEATHER.........MOSTLY CLOUDY THEN BECOMING PARTLY CLOUDY THEN  
BECOMING MOSTLY CLOUDY. ISOLATED SNOW SHOWERS  
EARLY IN THE MORNING. ISOLATED RAIN SHOWERS  
LATE IN THE AFTERNOON, THEN SCATTERED RAIN  
SHOWERS LATE IN THE AFTERNOON. CHANCE OF  
PRECIPITATION 50 PERCENT.  
MAX TEMPERATURE.....43-48.  
24 HR TREND......8 DEGREES WARMER.  
MIN HUMIDITY........47-53 PERCENT.  
24 HR TREND......15 PERCENT DRIER.  
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH UNTIL 1200, THEN SOUTH  
AROUND 15 MPH WITH HIGHER GUSTS.  
RIDGE TOP WINDS.....SOUTH 10 TO 15 MPH UNTIL 1500, THEN SOUTHWEST  
AROUND 20 MPH.  
LAL.................1.  
CHC OF WETTING RAIN.LESS THAN 5 PERCENT.  
TRANSPORT WINDS.....SOUTHWEST AROUND 10 MPH UNTIL 1200, THEN SOUTH  
15 TO 20 MPH.  
MIXING HEIGHT.......400-2200 FT AGL UNTIL 1500, THEN 3200-3400 FT  
AGL.  
SMOKE DISPERSAL.....POOR TO FAIR.  
HAINES INDEX........2.  
   
TONIGHT
 
 
SKY/WEATHER.........MOSTLY CLOUDY. NUMEROUS RAIN SHOWERS EARLY IN  
THE EVENING, THEN SCATTERED RAIN SHOWERS IN THE  
EVENING. ISOLATED RAIN SHOWERS AFTER MIDNIGHT.  
CHANCE OF SHOWERS 70 PERCENT.  
MIN TEMPERATURE.....34-39.  
24 HR TREND......7 DEGREES WARMER.  
MAX HUMIDITY........80-86 PERCENT.  
24 HR TREND......9 PERCENT DRIER.  
HUMIDITY RECOVERY...EXCELLENT.  
20-FOOT WINDS.......SOUTH WINDS AROUND 10 MPH UNTIL 2400, THEN  
EAST. GUSTS UP TO 15 MPH.  
RIDGE TOP WINDS.....SOUTH AROUND 15 MPH UNTIL 2400, THEN EAST.  
LAL.................1.  
CHC OF WETTING RAIN.20 PERCENT UNTIL 2400, THEN ZERO PERCENT.  
TRANSPORT WINDS.....SOUTH 15 TO 20 MPH.  
MIXING HEIGHT.......600-1800 FT AGL.  
SMOKE DISPERSAL.....POOR.  
HAINES INDEX........2.  
   
MONDAY
 
 
SKY/WEATHER.........MOSTLY CLOUDY. ISOLATED RAIN SHOWERS IN THE  
AFTERNOON. CHANCE OF SHOWERS 20 PERCENT.  
MAX TEMPERATURE.....56-61.  
24 HR TREND......12 DEGREES WARMER.  
MIN HUMIDITY........41-47 PERCENT.  
24 HR TREND......8 PERCENT DRIER.  
20-FOOT WINDS.......BREEZY. SOUTHEAST WINDS 10 TO 15 MPH WITH GUSTS  
TO AROUND 25 MPH UNTIL 1200, THEN SOUTHWEST  
AROUND 25 MPH WITH GUSTS TO AROUND 35 MPH.  
RIDGE TOP WINDS.....SOUTHEAST 15 TO 20 MPH UNTIL 1200, THEN  
SOUTHWEST 30 TO 35 MPH.  
LAL.................1.  
CHC OF WETTING RAIN.LESS THAN 5 PERCENT.  
TRANSPORT WINDS.....SOUTH 15 TO 20 MPH UNTIL 1200, THEN SOUTHWEST  
35 TO 40 MPH.  
MIXING HEIGHT.......600-1200 FT AGL UNTIL 1200, THEN 3600-5600 FT  
AGL.  
SMOKE DISPERSAL.....POOR UNTIL 1200. EXCELLENT AFTER 1500.  
HAINES INDEX........3.  
 
   
FORECAST DAYS 3 THROUGH 7...
 
   
MONDAY NIGHT
 
SHOWERS IN THE EVENING, THEN SHOWERS AND SNOW  
SHOWERS AFTER MIDNIGHT. LOWS IN THE LOWER 30S. WEST WINDS AROUND  
15 MPH.    
TUESDAY
 
COLDER. MOSTLY CLOUDY. NUMEROUS SNOW SHOWERS. LOWS IN  
THE UPPER 20S. HIGHS IN THE UPPER 30S. WEST WINDS AROUND 15 MPH.    
WEDNESDAY
 
MOSTLY CLOUDY WITH CHANCE OF SNOW SHOWERS AND SLIGHT  
CHANCE OF SHOWERS. LOWS IN THE LOWER 30S. HIGHS IN THE LOWER 40S.  
WEST WINDS AROUND 15 MPH.    
THURSDAY
 
PARTLY CLOUDY. LOWS AROUND 30. HIGHS IN THE UPPER  
40S. WEST WINDS AROUND 10 MPH.    
FRIDAY THROUGH SATURDAY
 
PARTLY CLOUDY. LOWS AROUND 30. HIGHS  
48 TO 53.  
 

 
 
WYZ279-242245-  
SWEETWATER COUNTY/ROCK SPRINGS BLM/FLAMING GORGE NRA-  
INCLUDING THE CITIES OF GREEN RIVER, ROCK SPRINGS, AND WAMSUTTER  
253 AM MDT SUN OCT 24 2021  
 
...HIGH WIND WATCH IN EFFECT FROM MONDAY MORNING THROUGH MONDAY  
EVENING...  
   
TODAY
 
 
SKY/WEATHER.........PARTLY CLOUDY.  
MAX TEMPERATURE.....46-51.  
24 HR TREND......2 DEGREES WARMER.  
MIN HUMIDITY........44-50 PERCENT.  
24 HR TREND......1 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 15 TO 20 MPH.  
MIXING HEIGHT.......400-600 FT AGL UNTIL 1200, THEN 2600-4200 FT  
AGL.  
SMOKE DISPERSAL.....POOR TO FAIR.  
HAINES INDEX........2.  
   
TONIGHT
 
 
SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY CLOUDY THEN  
BECOMING PARTLY CLOUDY. ISOLATED RAIN SHOWERS  
IN THE EVENING. CHANCE OF SHOWERS 20 PERCENT.  
MIN TEMPERATURE.....37-42.  
24 HR TREND......8 DEGREES WARMER.  
MAX HUMIDITY........73-79 PERCENT.  
24 HR TREND......17 PERCENT DRIER.  
HUMIDITY RECOVERY...EXCELLENT.  
20-FOOT WINDS.......SOUTH WINDS AROUND 15 MPH WITH GUSTS TO AROUND  
25 MPH.  
RIDGE TOP WINDS.....SOUTH AROUND 20 MPH.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTH 20 TO 25 MPH.  
MIXING HEIGHT.......600-1400 FT AGL.  
SMOKE DISPERSAL.....POOR.  
HAINES INDEX........3.  
   
MONDAY
 
 
SKY/WEATHER.........PARTLY CLOUDY.  
MAX TEMPERATURE.....58-63.  
24 HR TREND......12 DEGREES WARMER.  
MIN HUMIDITY........34-40 PERCENT.  
24 HR TREND......8 PERCENT DRIER.  
20-FOOT WINDS.......WINDY. SOUTH WINDS 20 TO 25 MPH WITH GUSTS TO  
AROUND 40 MPH UNTIL 1200, THEN AROUND 35 MPH  
WITH GUSTS TO AROUND 45 MPH UNTIL 1500, THEN  
AROUND 25 MPH WITH GUSTS TO AROUND 40 MPH.  
RIDGE TOP WINDS.....SOUTH 25 TO 30 MPH UNTIL 1200, THEN AROUND 35  
MPH.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTH AROUND 30 MPH UNTIL 1200, THEN AROUND 40  
MPH.  
MIXING HEIGHT.......800-2800 FT AGL UNTIL 1500, THEN 3800-4400 FT  
AGL.  
SMOKE DISPERSAL.....POOR UNTIL 1200, THEN GOOD TO VERY GOOD.  
HAINES INDEX........3.  
 
   
FORECAST DAYS 3 THROUGH 7...
 
   
MONDAY NIGHT
 
CLOUDY. SCATTERED SHOWERS IN THE EVENING, THEN  
NUMEROUS SHOWERS AFTER MIDNIGHT. LOWS IN THE MID 30S. SOUTHWEST  
WINDS AROUND 20 MPH.    
TUESDAY
 
COLDER. PARTLY CLOUDY. NUMEROUS SHOWERS AND SNOW  
SHOWERS. LOWS IN THE UPPER 20S. HIGHS IN THE LOWER 40S. WEST  
WINDS AROUND 20 MPH.    
WEDNESDAY
 
PARTLY CLOUDY. LOWS IN THE LOWER 30S. HIGHS IN THE  
MID 40S. WEST WINDS AROUND 20 MPH.    
THURSDAY
 
MOSTLY CLEAR. LOWS IN THE LOWER 30S. HIGHS IN THE  
LOWER 50S. WEST WINDS AROUND 15 MPH.    
FRIDAY
 
MOSTLY CLEAR. LOWS IN THE LOWER 30S. HIGHS IN THE MID  
50S.    
SATURDAY
 
PARTLY CLOUDY. HIGHS IN THE LOWER 50S.  
 

 
 
WYZ289-242245-  
GRANITE/GREEN/FERRIS/RATTLESNAKE MOUNTAINS-  
INCLUDING THE CITY OF JEFFREY CITY  
253 AM MDT SUN OCT 24 2021  
 
...HIGH WIND WATCH IN EFFECT FROM MONDAY MORNING THROUGH MONDAY  
EVENING...  
   
TODAY
 
 
SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY SUNNY THEN  
BECOMING PARTLY CLOUDY.  
MAX TEMPERATURE.....46-51.  
24 HR TREND......1 DEGREE WARMER.  
MIN HUMIDITY........41-47 PERCENT.  
24 HR TREND......4 PERCENT DRIER.  
20-FOOT WINDS.......SOUTHWEST WINDS 10 TO 15 MPH WITH GUSTS TO  
AROUND 25 MPH UNTIL 1200, THEN AROUND 20 MPH  
WITH GUSTS TO AROUND 30 MPH.  
RIDGE TOP WINDS.....SOUTHWEST 15 TO 20 MPH UNTIL 1200, THEN AROUND  
25 MPH.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....WEST 15 TO 20 MPH UNTIL 1200, THEN SOUTHWEST  
AROUND 25 MPH.  
MIXING HEIGHT.......600-800 FT AGL UNTIL 1200, THEN 2600-3800 FT  
AGL.  
SMOKE DISPERSAL.....FAIR TO GOOD.  
HAINES INDEX........2.  
   
TONIGHT
 
 
SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY CLOUDY THEN  
BECOMING PARTLY CLOUDY. ISOLATED RAIN SHOWERS  
LATE IN THE EVENING. CHANCE OF SHOWERS 20  
PERCENT.  
MIN TEMPERATURE.....39-44.  
24 HR TREND......7 DEGREES WARMER.  
MAX HUMIDITY........72-78 PERCENT.  
24 HR TREND......16 PERCENT DRIER.  
HUMIDITY RECOVERY...EXCELLENT.  
20-FOOT WINDS.......SOUTHWEST WINDS 15 TO 20 MPH WITH GUSTS TO  
AROUND 30 MPH.  
RIDGE TOP WINDS.....SOUTHWEST 20 TO 25 MPH.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTHWEST 20 TO 25 MPH.  
MIXING HEIGHT.......800-1400 FT AGL.  
SMOKE DISPERSAL.....POOR.  
HAINES INDEX........2.  
   
MONDAY
 
 
SKY/WEATHER.........PARTLY CLOUDY.  
MAX TEMPERATURE.....61-66.  
24 HR TREND......15 DEGREES WARMER.  
MIN HUMIDITY........30-36 PERCENT.  
24 HR TREND......9 PERCENT DRIER.  
20-FOOT WINDS.......WINDY. SOUTHWEST WINDS 25 TO 30 MPH WITH GUSTS  
TO AROUND 45 MPH UNTIL 1200, THEN 30 TO 35 MPH  
WITH GUSTS TO AROUND 50 MPH.  
RIDGE TOP WINDS.....SOUTHWEST 30 TO 35 MPH UNTIL 1200, THEN 35 TO  
40 MPH.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTH 30 TO 35 MPH UNTIL 1200, THEN AROUND 40  
MPH.  
MIXING HEIGHT.......800-2600 FT AGL UNTIL 1500, THEN 3800-4400 FT  
AGL.  
SMOKE DISPERSAL.....POOR UNTIL 1200. VERY GOOD AFTER 1500.  
HAINES INDEX........3.  
 
   
FORECAST DAYS 3 THROUGH 7...
 
   
MONDAY NIGHT
 
MOSTLY CLOUDY WITH SCATTERED SHOWERS. LOWS IN THE  
UPPER 30S. SOUTHWEST WINDS AROUND 20 MPH.    
TUESDAY
 
COLDER. PARTLY CLOUDY. NUMEROUS SHOWERS AND SNOW  
SHOWERS. LOWS IN THE UPPER 20S. HIGHS IN THE MID 40S. WEST WINDS  
AROUND 15 MPH.    
WEDNESDAY THROUGH THURSDAY
 
MOSTLY CLEAR. LOWS IN THE LOWER  
30S. HIGHS 47 TO 52. WEST WINDS 15 TO 20 MPH.    
FRIDAY
 
MOSTLY CLEAR. LOWS IN THE MID 30S. HIGHS IN THE MID  
50S.    
SATURDAY
 
PARTLY CLOUDY. HIGHS IN THE LOWER 50S.  
 

 
 
WYZ300-242245-  
CASPER MOUNTAIN-  
253 AM MDT SUN OCT 24 2021  
   
TODAY
 
 
SKY/WEATHER.........MOSTLY CLOUDY THEN BECOMING MOSTLY SUNNY.  
MAX TEMPERATURE.....46-51.  
24 HR TREND......3 DEGREES COOLER.  
MIN HUMIDITY........41-47 PERCENT.  
24 HR TREND......8 PERCENT WETTER.  
20-FOOT WINDS.......WEST WINDS 10 TO 15 MPH WITH HIGHER GUSTS UNTIL  
1200, THEN SOUTHWEST AROUND 20 MPH WITH GUSTS  
TO AROUND 30 MPH.  
RIDGE TOP WINDS.....WEST 15 TO 20 MPH UNTIL 1200, THEN SOUTHWEST 20  
TO 25 MPH.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....WEST 15 TO 20 MPH UNTIL 1200, THEN AROUND 25  
MPH.  
MIXING HEIGHT.......800-1200 FT AGL UNTIL 1200, THEN 3400-4600 FT  
AGL.  
SMOKE DISPERSAL.....POOR UNTIL 1200, THEN GOOD.  
HAINES INDEX........2.  
   
TONIGHT
 
 
SKY/WEATHER.........PARTLY CLOUDY.  
MIN TEMPERATURE.....37-42.  
24 HR TREND......7 DEGREES WARMER.  
MAX HUMIDITY........65-71 PERCENT.  
24 HR TREND......29 PERCENT DRIER.  
HUMIDITY RECOVERY...GOOD.  
20-FOOT WINDS.......SOUTH WINDS 15 TO 20 MPH WITH GUSTS TO AROUND  
30 MPH.  
RIDGE TOP WINDS.....SOUTH 20 TO 25 MPH.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTHWEST 20 TO 25 MPH UNTIL 0300, THEN AROUND  
30 MPH.  
MIXING HEIGHT.......1000-1200 FT AGL.  
SMOKE DISPERSAL.....POOR.  
HAINES INDEX........2.  
   
MONDAY
 
 
SKY/WEATHER.........PARTLY CLOUDY.  
MAX TEMPERATURE.....63-68.  
24 HR TREND......19 DEGREES WARMER.  
MIN HUMIDITY........28-34 PERCENT.  
24 HR TREND......15 PERCENT DRIER.  
20-FOOT WINDS.......BREEZY. SOUTHWEST WINDS 20 TO 25 MPH. GUSTS UP  
TO 35 MPH UNTIL 1200, THEN 40 MPH.  
RIDGE TOP WINDS.....SOUTHWEST 25 TO 30 MPH.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTHWEST 35 TO 40 MPH.  
MIXING HEIGHT.......1200 FT AGL UNTIL 1200, THEN 3200-4600 FT AGL.  
SMOKE DISPERSAL.....POOR TO FAIR UNTIL 1200, THEN VERY GOOD.  
HAINES INDEX........3.  
 
   
FORECAST DAYS 3 THROUGH 7...
 
   
MONDAY NIGHT
 
PARTLY CLOUDY. LOWS AROUND 40. SOUTH WINDS AROUND  
20 MPH.    
TUESDAY
 
MUCH COLDER. MOSTLY CLOUDY. SHOWERS AND SNOW SHOWERS.  
LOWS IN THE UPPER 20S. HIGHS IN THE MID 40S. WEST WINDS AROUND  
15 MPH.    
WEDNESDAY THROUGH THURSDAY
 
MOSTLY CLEAR. LOWS 30 TO 35. HIGHS  
46 TO 51. SOUTHWEST WINDS AROUND 15 MPH.    
FRIDAY
 
MOSTLY CLEAR. LOWS IN THE MID 30S. HIGHS IN THE MID  
50S.    
SATURDAY
 
PARTLY CLOUDY. HIGHS AROUND 50.  
 

 
 
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