895  
FNUS55 KCYS 200902  
FWFCYS  
 
FIRE WEATHER PLANNING FORECAST FOR SOUTHEAST WYOMING/WESTERN NEBRASKA  
NATIONAL WEATHER SERVICE CHEYENNE WY  
302 AM MDT SUN AUG 20 2017  
   
DISCUSSION
 
 
MINIMAL FIRE WEATHER CONCERNS THROUGH EARLY NEXT WEEK. ALTHOUGH  
MINIMUM HUMIDITY VALUES WILL FALL TO 15-20 PERCENT TODAY OVER LOWER  
ELEVATIONS TO THE WEST OF THE LARAMIE RANGE, WIND GUSTS WILL MOSTLY  
BE BELOW 20 MPH. ISOLATED THUNDERSTORMS WITH GUSTY OUTFLOW WINDS  
WILL BE POSSIBLE IN AREAS NEAR THE SOUTHERN LARAMIE RANGE THIS  
AFTERNOON.  
 
WYZ301-202215-  
NIOBRARA/LOWER ELEVATIONS OF CONVERSE/THUNDER BASIN NATIONAL  
GRASSLAND-  
302 AM MDT SUN AUG 20 2017  
   
TODAY
 
 
SKY/WEATHER.........MOSTLY SUNNY UNTIL 1500, THEN PARTLY CLOUDY.  
MAX TEMPERATURE.....83-88.  
24 HR TREND......5 DEGREES COOLER.  
MIN HUMIDITY........20-26 PERCENT.  
24 HR TREND......16 PERCENT WETTER.  
20-FOOT WINDS.......SOUTHEAST AROUND 10 MPH. GUSTS UP TO 15 MPH  
INCREASING TO 25 MPH IN THE AFTERNOON.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTHEAST 10 TO 15 MPH.  
MIXING HEIGHT.......2100-3000 FT AGL INCREASING TO 7100-9100 FT AGL  
IN THE AFTERNOON.  
SMOKE DISPERSAL.....POOR TO GOOD (33300-73500 KNOT-FT).  
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
TONIGHT
 
 
SKY/WEATHER.........PARTLY CLOUDY.  
MIN TEMPERATURE.....54-59.  
24 HR TREND......1 DEGREE WARMER.  
MAX HUMIDITY........83-89 PERCENT.  
24 HR TREND......27 PERCENT WETTER.  
HUMIDITY RECOVERY...EXCELLENT.  
20-FOOT WINDS.......SOUTHEAST 5 TO 10 MPH. GUSTS UP TO 25 MPH  
DECREASING TO 15 MPH AFTER MIDNIGHT.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTH 15 TO 20 MPH.  
MIXING HEIGHT.......300-1600 FT AGL.  
SMOKE DISPERSAL.....POOR (6100-18300 KNOT-FT).  
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED  
FIRE GROWTH.  
   
MONDAY
 
 
SKY/WEATHER.........PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS AFTER 1200.  
MAX TEMPERATURE.....80-85.  
24 HR TREND......4 DEGREES COOLER.  
MIN HUMIDITY........19-25 PERCENT.  
24 HR TREND......4 PERCENT DRIER.  
20-FOOT WINDS.......NORTH AROUND 10 MPH AND GUSTY.  
LAL.................2.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....NORTHWEST AROUND 15 MPH.  
MIXING HEIGHT.......1200-1900 FT AGL INCREASING TO 9600-10500 FT  
AGL IN THE AFTERNOON.  
SMOKE DISPERSAL.....POOR (20800 KNOT-FT) INCREASING TO VERY GOOD  
(130900 KNOT-FT) IN THE AFTERNOON.  
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED  
FIRE GROWTH.  
   
FORECAST DAYS 3 THROUGH 7
 
   
TUESDAY
 
MOSTLY CLEAR. LOWS IN THE LOWER 50S. HIGHS IN THE  
LOWER 80S. SOUTHEAST WINDS AROUND 5 MPH.    
WEDNESDAY
 
MOSTLY CLEAR. LOWS IN THE MID 50S. HIGHS IN THE MID  
80S. SOUTH WINDS AROUND 10 MPH.    
THURSDAY
 
PARTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS. LOWS IN THE UPPER 50S. HIGHS IN THE MID 80S. WINDS  
GENERALLY LESS THAN 10 MPH.    
FRIDAY
 
PARTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS. LOWS IN THE UPPER 50S. HIGHS IN THE MID 80S.    
SATURDAY
 
MOSTLY CLEAR. SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS. LOWS IN THE MID 50S. HIGHS IN THE MID 80S.  
 

 
 
WYZ302-202215-  
NORTH LARAMIE RANGE/MEDICINE BOW NF-  
302 AM MDT SUN AUG 20 2017  
   
TODAY
 
 
SKY/WEATHER.........MOSTLY SUNNY UNTIL 1500, THEN PARTLY CLOUDY.  
MAX TEMPERATURE.....77-83.  
24 HR TREND......2 DEGREES COOLER.  
MIN HUMIDITY........17-23 PERCENT.  
24 HR TREND......7 PERCENT WETTER.  
20-FOOT WINDS.......SOUTH AROUND 5 MPH. GUSTS UP TO 20 MPH IN THE  
AFTERNOON.  
LAL.................1 UNTIL 1200, THEN 2.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTHWEST AROUND 10 MPH.  
MIXING HEIGHT.......1000-1900 FT AGL INCREASING TO 12800-14800 FT  
AGL IN THE AFTERNOON.  
SMOKE DISPERSAL.....POOR (7800 KNOT-FT) INCREASING TO VERY GOOD  
(122400 KNOT-FT) IN THE AFTERNOON.  
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
TONIGHT
 
 
SKY/WEATHER.........PARTLY CLOUDY.  
MIN TEMPERATURE.....50-55.  
24 HR TREND......2 DEGREES COOLER.  
MAX HUMIDITY........64-70 PERCENT.  
24 HR TREND......14 PERCENT WETTER.  
HUMIDITY RECOVERY...FAIR.  
20-FOOT WINDS.......SOUTH 5 TO 10 MPH.  
LAL.................2 UNTIL 2400, THEN 1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTH AROUND 20 MPH BECOMING SOUTHWEST AROUND  
10 MPH AFTER MIDNIGHT.  
MIXING HEIGHT.......500-1300 FT AGL.  
SMOKE DISPERSAL.....POOR (7300-16000 KNOT-FT).  
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
MONDAY
 
 
SKY/WEATHER.........PARTLY CLOUDY UNTIL 0900, THEN MOSTLY SUNNY  
UNTIL 1200, THEN PARTLY CLOUDY. SLIGHT CHANCE  
OF SHOWERS AND THUNDERSTORMS AFTER 1200.  
MAX TEMPERATURE.....74-80.  
24 HR TREND......4 DEGREES COOLER.  
MIN HUMIDITY........19-25 PERCENT.  
24 HR TREND......6 PERCENT WETTER.  
20-FOOT WINDS.......NORTHWEST AROUND 10 MPH AND GUSTY.  
LAL.................1 UNTIL 1200, THEN 2 UNTIL 1500, THEN 3.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....NORTHWEST AROUND 15 MPH.  
MIXING HEIGHT.......1400-2300 FT AGL INCREASING TO 9000-10900 FT  
AGL IN THE AFTERNOON.  
SMOKE DISPERSAL.....POOR (24800 KNOT-FT) INCREASING TO VERY GOOD  
(113900 KNOT-FT) IN THE AFTERNOON.  
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
FORECAST DAYS 3 THROUGH 7
 
   
TUESDAY
 
PARTLY CLOUDY. LOWS AROUND 50. HIGHS IN THE MID 70S.  
SOUTHEAST WINDS AROUND 5 MPH.    
WEDNESDAY
 
MOSTLY CLEAR. LOWS IN THE LOWER 50S. HIGHS IN THE  
UPPER 70S. SOUTH WINDS AROUND 5 MPH.    
THURSDAY
 
PARTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS. LOWS IN THE MID 50S. HIGHS IN THE UPPER 70S. WINDS  
GENERALLY LESS THAN 10 MPH.    
FRIDAY
 
PARTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS. LOWS IN THE MID 50S. HIGHS IN THE UPPER 70S.    
SATURDAY
 
MOSTLY CLEAR. LOWS IN THE LOWER 50S. HIGHS IN THE  
UPPER 70S.  
 

 
 
WYZ303-202215-  
CENTRAL AND NORTHERN CARBON/FERRIS-SEMINOE-SHIRLEY MOUNTAINS-  
302 AM MDT SUN AUG 20 2017  
   
TODAY
 
 
SKY/WEATHER.........MOSTLY SUNNY UNTIL 1200, THEN PARTLY CLOUDY.  
MAX TEMPERATURE.....79-84.  
24 HR TREND......UNCHANGED.  
MIN HUMIDITY........10-16 PERCENT.  
24 HR TREND......5 PERCENT WETTER.  
20-FOOT WINDS.......SOUTHWEST 5 TO 10 MPH. GUSTS UP TO 20 MPH IN  
THE AFTERNOON.  
LAL.................1 UNTIL 1200, THEN 3.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTHWEST 5 TO 10 MPH.  
MIXING HEIGHT.......600-1900 FT AGL INCREASING TO 14000-16000 FT  
AGL IN THE AFTERNOON.  
SMOKE DISPERSAL.....POOR (7200 KNOT-FT) INCREASING TO VERY GOOD  
(143100 KNOT-FT) IN THE AFTERNOON.  
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
TONIGHT
 
 
SKY/WEATHER.........PARTLY CLOUDY.  
MIN TEMPERATURE.....48-53.  
24 HR TREND......2 DEGREES COOLER.  
MAX HUMIDITY........63-69 PERCENT.  
24 HR TREND......25 PERCENT WETTER.  
HUMIDITY RECOVERY...FAIR.  
20-FOOT WINDS.......SOUTHWEST 5 TO 10 MPH.  
LAL.................2 UNTIL 2400, THEN 1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTHWEST AROUND 15 MPH BECOMING WEST AROUND 5  
MPH AFTER MIDNIGHT.  
MIXING HEIGHT.......700-2700 FT AGL.  
SMOKE DISPERSAL.....POOR (4100-19300 KNOT-FT).  
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
MONDAY
 
 
SKY/WEATHER.........MOSTLY SUNNY UNTIL 1200, THEN PARTLY CLOUDY.  
MAX TEMPERATURE.....78-83.  
24 HR TREND......1 DEGREE COOLER.  
MIN HUMIDITY........13-19 PERCENT.  
24 HR TREND......4 PERCENT WETTER.  
20-FOOT WINDS.......WEST AROUND 5 MPH SHIFTING TO THE NORTH IN THE  
AFTERNOON. GUSTS UP TO 15 MPH.  
LAL.................1 UNTIL 1200, THEN 2.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....NORTHWEST 10 TO 15 MPH.  
MIXING HEIGHT.......1100-1900 FT AGL INCREASING TO 10900-12900 FT  
AGL IN THE AFTERNOON.  
SMOKE DISPERSAL.....POOR (10400 KNOT-FT) INCREASING TO VERY GOOD  
(139700 KNOT-FT) IN THE AFTERNOON.  
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED  
FIRE GROWTH.  
   
FORECAST DAYS 3 THROUGH 7
 
   
TUESDAY
 
MOSTLY CLEAR. LOWS IN THE UPPER 40S. HIGHS AROUND 80.  
EAST WINDS AROUND 5 MPH.    
WEDNESDAY
 
MOSTLY CLEAR WITH SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS. LOWS IN THE LOWER 50S. HIGHS AROUND 80. SOUTH  
WINDS AROUND 5 MPH.    
THURSDAY
 
PARTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS. LOWS IN THE LOWER 50S. HIGHS IN THE UPPER 70S.  
WINDS GENERALLY LESS THAN 10 MPH.    
FRIDAY
 
PARTLY CLOUDY. LOWS IN THE LOWER 50S. HIGHS IN THE  
UPPER 70S.    
SATURDAY
 
MOSTLY CLEAR. LOWS AROUND 50. HIGHS IN THE UPPER 70S.  
 

 
 
WYZ304-202215-  
SOUTHWEST CARBON COUNTY-  
302 AM MDT SUN AUG 20 2017  
   
TODAY
 
 
SKY/WEATHER.........MOSTLY SUNNY UNTIL 1200, THEN PARTLY CLOUDY.  
MAX TEMPERATURE.....81-86.  
24 HR TREND......1 DEGREE COOLER.  
MIN HUMIDITY........15 PERCENT.  
24 HR TREND......3 PERCENT WETTER.  
20-FOOT WINDS.......SOUTH AROUND 5 MPH SHIFTING TO THE SOUTHWEST IN  
THE AFTERNOON. GUSTS UP TO 15 MPH.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTHWEST AROUND 10 MPH.  
MIXING HEIGHT.......700-1800 FT AGL INCREASING TO 14400-15200 FT  
AGL IN THE AFTERNOON.  
SMOKE DISPERSAL.....POOR (7700 KNOT-FT) INCREASING TO VERY GOOD  
(108200 KNOT-FT) IN THE AFTERNOON.  
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
TONIGHT
 
 
SKY/WEATHER.........PARTLY CLOUDY.  
MIN TEMPERATURE.....49-54.  
24 HR TREND......UNCHANGED.  
MAX HUMIDITY........59-65 PERCENT.  
24 HR TREND......13 PERCENT WETTER.  
HUMIDITY RECOVERY...FAIR.  
20-FOOT WINDS.......WEST AROUND 10 MPH SHIFTING TO THE SOUTH AFTER  
MIDNIGHT. GUSTS UP TO 15 MPH.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....NORTHWEST AROUND 10 MPH SHIFTING TO THE  
SOUTHEAST AFTER MIDNIGHT.  
MIXING HEIGHT.......400-1700 FT AGL.  
SMOKE DISPERSAL.....POOR (1900-10500 KNOT-FT).  
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
MONDAY
 
 
SKY/WEATHER.........MOSTLY SUNNY UNTIL 1200, THEN PARTLY CLOUDY.  
MAX TEMPERATURE.....79-84.  
24 HR TREND......1 DEGREE COOLER.  
MIN HUMIDITY........16 PERCENT.  
24 HR TREND......1 PERCENT WETTER.  
20-FOOT WINDS.......SOUTHWEST AROUND 5 MPH SHIFTING TO THE  
NORTHWEST IN THE AFTERNOON. GUSTS UP TO 15 MPH.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....WEST AROUND 5 MPH INCREASING TO NORTHWEST  
AROUND 15 MPH IN THE AFTERNOON.  
MIXING HEIGHT.......1000-1600 FT AGL INCREASING TO 13200-13900 FT  
AGL IN THE AFTERNOON.  
SMOKE DISPERSAL.....POOR (3500 KNOT-FT) INCREASING TO EXCELLENT  
(151900 KNOT-FT) IN THE AFTERNOON.  
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED  
FIRE GROWTH.  
   
FORECAST DAYS 3 THROUGH 7
 
   
TUESDAY
 
MOSTLY CLEAR. LOWS IN THE LOWER 50S. HIGHS IN THE  
LOWER 80S. EAST WINDS AROUND 5 MPH.    
WEDNESDAY
 
PARTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS. LOWS IN THE LOWER 50S. HIGHS IN THE LOWER 80S.  
SOUTHWEST WINDS AROUND 5 MPH.    
THURSDAY
 
PARTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS. LOWS IN THE LOWER 50S. HIGHS IN THE UPPER 70S.  
WINDS GENERALLY LESS THAN 10 MPH.    
FRIDAY
 
PARTLY CLOUDY. LOWS IN THE LOWER 50S. HIGHS IN THE  
UPPER 70S.    
SATURDAY
 
PARTLY CLOUDY. LOWS IN THE LOWER 50S. HIGHS IN THE  
LOWER 80S.  
 

 
 
WYZ305-202215-  
SIERRA MADRE RANGE/MEDICINE BOW NF-  
302 AM MDT SUN AUG 20 2017  
   
TODAY
 
 
SKY/WEATHER.........PARTLY CLOUDY UNTIL 0900, THEN MOSTLY SUNNY  
UNTIL 1200, THEN PARTLY CLOUDY. SLIGHT CHANCE  
OF SHOWERS AND THUNDERSTORMS AFTER 1200.  
MAX TEMPERATURE.....73-81.  
24 HR TREND......1 DEGREE COOLER.  
MIN HUMIDITY........14-20 PERCENT.  
24 HR TREND......5 PERCENT WETTER.  
20-FOOT WINDS.......SOUTH AROUND 5 MPH SHIFTING TO THE WEST IN THE  
AFTERNOON. GUSTS UP TO 15 MPH.  
LAL.................1 UNTIL 1200, THEN 2.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTHWEST AROUND 10 MPH.  
MIXING HEIGHT.......2000-3100 FT AGL INCREASING TO 12900-14100 FT  
AGL IN THE AFTERNOON.  
SMOKE DISPERSAL.....POOR (16400 KNOT-FT) INCREASING TO VERY GOOD  
(109200 KNOT-FT) IN THE AFTERNOON.  
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
TONIGHT
 
 
SKY/WEATHER.........PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS UNTIL 2400.  
MIN TEMPERATURE.....46-51.  
24 HR TREND......1 DEGREE COOLER.  
MAX HUMIDITY........57-63 PERCENT.  
24 HR TREND......9 PERCENT WETTER.  
HUMIDITY RECOVERY...FAIR.  
20-FOOT WINDS.......SOUTH AROUND 5 MPH.  
LAL.................2 UNTIL 2400, THEN 1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTHWEST 5 TO 10 MPH.  
MIXING HEIGHT.......2300-4300 FT AGL DECREASING TO 700-1900 FT AGL  
AFTER MIDNIGHT.  
SMOKE DISPERSAL.....POOR (4800-19300 KNOT-FT).  
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
MONDAY
 
 
SKY/WEATHER.........MOSTLY SUNNY UNTIL 1200, THEN PARTLY CLOUDY.  
SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS  
AFTER 1500.  
MAX TEMPERATURE.....72-78.  
24 HR TREND......1 DEGREE COOLER.  
MIN HUMIDITY........16-22 PERCENT.  
24 HR TREND......UNCHANGED.  
20-FOOT WINDS.......WEST AROUND 5 MPH SHIFTING TO THE NORTHWEST IN  
THE AFTERNOON. GUSTS UP TO 15 MPH.  
LAL.................1 UNTIL 1200, THEN 2.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....WEST AROUND 5 MPH INCREASING TO NORTHWEST  
AROUND 15 MPH IN THE AFTERNOON.  
MIXING HEIGHT.......1800-2500 FT AGL INCREASING TO 11500-13100 FT  
AGL IN THE AFTERNOON.  
SMOKE DISPERSAL.....POOR (12800 KNOT-FT) INCREASING TO VERY GOOD  
(148400 KNOT-FT) IN THE AFTERNOON.  
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED  
FIRE GROWTH.  
   
FORECAST DAYS 3 THROUGH 7
 
   
TUESDAY
 
PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS. LOWS IN THE UPPER 40S. HIGHS IN THE MID 70S. EAST  
WINDS AROUND 5 MPH.    
WEDNESDAY
 
PARTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS. LOWS IN THE UPPER 40S. HIGHS IN THE MID 70S. SOUTH  
WINDS AROUND 5 MPH.    
THURSDAY
 
PARTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS. LOWS IN THE UPPER 40S. HIGHS IN THE LOWER 70S.  
WINDS GENERALLY LESS THAN 10 MPH.    
FRIDAY
 
PARTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS. LOWS IN THE UPPER 40S. HIGHS IN THE LOWER 70S.    
SATURDAY
 
PARTLY CLOUDY. LOWS IN THE UPPER 40S. HIGHS IN THE  
MID 70S.  
 

 
 
WYZ306-202215-  
UPPER NORTH PLATTE RIVER BASIN-  
302 AM MDT SUN AUG 20 2017  
   
TODAY
 
 
SKY/WEATHER.........MOSTLY SUNNY UNTIL 1200, THEN PARTLY CLOUDY.  
MAX TEMPERATURE.....79-84.  
24 HR TREND......UNCHANGED.  
MIN HUMIDITY........12-18 PERCENT.  
24 HR TREND......5 PERCENT WETTER.  
20-FOOT WINDS.......SOUTH AROUND 5 MPH SHIFTING TO THE SOUTHWEST IN  
THE AFTERNOON. GUSTS UP TO 15 MPH.  
LAL.................1 UNTIL 1200, THEN 2.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTHWEST 5 TO 10 MPH.  
MIXING HEIGHT.......1600-2500 FT AGL INCREASING TO 14000-14800 FT  
AGL IN THE AFTERNOON.  
SMOKE DISPERSAL.....POOR (11200 KNOT-FT) INCREASING TO VERY GOOD  
(100400 KNOT-FT) IN THE AFTERNOON.  
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
TONIGHT
 
 
SKY/WEATHER.........PARTLY CLOUDY.  
MIN TEMPERATURE.....47-52.  
24 HR TREND......UNCHANGED.  
MAX HUMIDITY........65-71 PERCENT.  
24 HR TREND......17 PERCENT WETTER.  
HUMIDITY RECOVERY...FAIR.  
20-FOOT WINDS.......SOUTH AROUND 5 MPH.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTHWEST 5 TO 10 MPH.  
MIXING HEIGHT.......700-1500 FT AGL.  
SMOKE DISPERSAL.....POOR (4200-7000 KNOT-FT).  
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
MONDAY
 
 
SKY/WEATHER.........MOSTLY SUNNY UNTIL 1200, THEN PARTLY CLOUDY.  
MAX TEMPERATURE.....77-82.  
24 HR TREND......2 DEGREES COOLER.  
MIN HUMIDITY........14-20 PERCENT.  
24 HR TREND......2 PERCENT WETTER.  
20-FOOT WINDS.......SOUTHWEST AROUND 5 MPH SHIFTING TO THE NORTH IN  
THE AFTERNOON. GUSTS UP TO 15 MPH.  
LAL.................1 UNTIL 1500, THEN 2.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....WEST AROUND 5 MPH INCREASING TO NORTHWEST  
AROUND 15 MPH IN THE AFTERNOON.  
MIXING HEIGHT.......1700-2300 FT AGL INCREASING TO 12100-12800 FT  
AGL IN THE AFTERNOON.  
SMOKE DISPERSAL.....POOR (9500 KNOT-FT) INCREASING TO EXCELLENT  
(155200 KNOT-FT) IN THE AFTERNOON.  
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED  
FIRE GROWTH.  
   
FORECAST DAYS 3 THROUGH 7
 
   
TUESDAY
 
MOSTLY CLEAR. LOWS IN THE UPPER 40S. HIGHS AROUND 80.  
EAST WINDS AROUND 5 MPH.    
WEDNESDAY
 
PARTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS. LOWS IN THE UPPER 40S. HIGHS IN THE UPPER 70S.  
SOUTHEAST WINDS AROUND 5 MPH.    
THURSDAY
 
PARTLY CLOUDY. LOWS IN THE UPPER 40S. HIGHS IN THE  
MID 70S. WINDS GENERALLY LESS THAN 10 MPH.    
FRIDAY
 
PARTLY CLOUDY. LOWS IN THE UPPER 40S. HIGHS IN THE MID  
70S.    
SATURDAY
 
PARTLY CLOUDY. LOWS IN THE UPPER 40S. HIGHS IN THE  
UPPER 70S.  
 

 
 
WYZ307-202215-  
SNOWY RANGE/MEDICINE BOW NF-  
302 AM MDT SUN AUG 20 2017  
   
TODAY
 
 
SKY/WEATHER.........MOSTLY SUNNY UNTIL 1200, THEN PARTLY CLOUDY.  
SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS  
AFTER 1200.  
MAX TEMPERATURE.....71-77.  
24 HR TREND......1 DEGREE COOLER.  
MIN HUMIDITY........15-21 PERCENT.  
24 HR TREND......4 PERCENT WETTER.  
20-FOOT WINDS.......SOUTHWEST AROUND 5 MPH.  
LAL.................1 UNTIL 1200, THEN 3.  
CHC OF WETTING RAIN.5 PERCENT.  
TRANSPORT WINDS.....WEST 5 TO 10 MPH.  
MIXING HEIGHT.......2300-4300 FT AGL INCREASING TO 11900-13900 FT  
AGL IN THE AFTERNOON.  
SMOKE DISPERSAL.....POOR (22700 KNOT-FT) INCREASING TO GOOD (87000  
KNOT-FT) IN THE AFTERNOON.  
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
TONIGHT
 
 
SKY/WEATHER.........MOSTLY CLOUDY UNTIL 2400, THEN PARTLY CLOUDY.  
SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS  
UNTIL 2400.  
MIN TEMPERATURE.....41-47.  
24 HR TREND......1 DEGREE WARMER.  
MAX HUMIDITY........68-74 PERCENT.  
24 HR TREND......17 PERCENT WETTER.  
HUMIDITY RECOVERY...GOOD.  
20-FOOT WINDS.......SOUTH AROUND 5 MPH.  
LAL.................2 UNTIL 2400, THEN 1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTHWEST 5 TO 10 MPH.  
MIXING HEIGHT.......700-2700 FT AGL.  
SMOKE DISPERSAL.....POOR (10100-11300 KNOT-FT).  
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED  
FIRE GROWTH.  
   
MONDAY
 
 
SKY/WEATHER.........MOSTLY SUNNY UNTIL 1200, THEN PARTLY CLOUDY.  
SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS  
AFTER 1200.  
MAX TEMPERATURE.....69-75.  
24 HR TREND......3 DEGREES COOLER.  
MIN HUMIDITY........20-26 PERCENT.  
24 HR TREND......4 PERCENT WETTER.  
20-FOOT WINDS.......WEST AROUND 5 MPH SHIFTING TO THE NORTH IN THE  
AFTERNOON. GUSTS UP TO 15 MPH.  
LAL.................1 UNTIL 1200, THEN 2 UNTIL 1500, THEN 3.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....NORTHWEST 10 TO 15 MPH.  
MIXING HEIGHT.......1600-2700 FT AGL INCREASING TO 10700-12100 FT  
AGL IN THE AFTERNOON.  
SMOKE DISPERSAL.....POOR (18600 KNOT-FT) INCREASING TO VERY GOOD  
(141200 KNOT-FT) IN THE AFTERNOON.  
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED  
FIRE GROWTH.  
   
FORECAST DAYS 3 THROUGH 7
 
   
TUESDAY
 
PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS. LOWS IN THE LOWER 40S. HIGHS IN THE LOWER 70S.  
SOUTHEAST WINDS AROUND 5 MPH.    
WEDNESDAY
 
PARTLY CLOUDY WITH CHANCE OF SHOWERS AND  
THUNDERSTORMS. LOWS IN THE MID 40S. HIGHS IN THE LOWER 70S. SOUTH  
WINDS AROUND 5 MPH.    
THURSDAY
 
PARTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS. LOWS IN THE MID 40S. HIGHS AROUND 70. WINDS  
GENERALLY LESS THAN 10 MPH.    
FRIDAY
 
PARTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS. LOWS IN THE MID 40S. HIGHS AROUND 70.    
SATURDAY
 
PARTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS. LOWS IN THE MID 40S. HIGHS IN THE LOWER 70S.  
 

 
 
WYZ308-202215-  
LARAMIE VALLEY/SHIRLEY BASIN-  
302 AM MDT SUN AUG 20 2017  
   
TODAY
 
 
SKY/WEATHER.........MOSTLY SUNNY UNTIL 1200, THEN PARTLY CLOUDY.  
SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS  
AFTER 1200.  
MAX TEMPERATURE.....79-84.  
24 HR TREND......UNCHANGED.  
MIN HUMIDITY........12-18 PERCENT.  
24 HR TREND......6 PERCENT WETTER.  
20-FOOT WINDS.......SOUTH AROUND 5 MPH AND GUSTY.  
LAL.................1 UNTIL 1200, THEN 2 UNTIL 1500, THEN 3.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTHWEST 5 TO 10 MPH.  
MIXING HEIGHT.......700-1500 FT AGL INCREASING TO 13500-15500 FT  
AGL IN THE AFTERNOON.  
SMOKE DISPERSAL.....POOR (5100 KNOT-FT) INCREASING TO VERY GOOD  
(110000 KNOT-FT) IN THE AFTERNOON.  
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
TONIGHT
 
 
SKY/WEATHER.........MOSTLY CLOUDY UNTIL 2400, THEN PARTLY CLOUDY.  
MIN TEMPERATURE.....46-51.  
24 HR TREND......2 DEGREES WARMER.  
MAX HUMIDITY........76-82 PERCENT.  
24 HR TREND......22 PERCENT WETTER.  
HUMIDITY RECOVERY...GOOD.  
20-FOOT WINDS.......SOUTH 5 TO 10 MPH.  
LAL.................2 UNTIL 2400, THEN 1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTH 10 TO 15 MPH.  
MIXING HEIGHT.......400-1100 FT AGL.  
SMOKE DISPERSAL.....POOR (4900-9300 KNOT-FT).  
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED  
FIRE GROWTH.  
   
MONDAY
 
 
SKY/WEATHER.........MOSTLY SUNNY UNTIL 1200, THEN PARTLY CLOUDY.  
SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS  
AFTER 1500.  
MAX TEMPERATURE.....77-82.  
24 HR TREND......4 DEGREES COOLER.  
MIN HUMIDITY........16-22 PERCENT.  
24 HR TREND......4 PERCENT WETTER.  
20-FOOT WINDS.......WEST AROUND 5 MPH SHIFTING TO THE NORTH IN THE  
AFTERNOON. GUSTS UP TO 20 MPH.  
LAL.................1 UNTIL 1500, THEN 2.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....NORTHWEST 10 TO 15 MPH.  
MIXING HEIGHT.......1400-2000 FT AGL INCREASING TO 10800-12700 FT  
AGL IN THE AFTERNOON.  
SMOKE DISPERSAL.....POOR (15600 KNOT-FT) INCREASING TO VERY GOOD  
(134700 KNOT-FT) IN THE AFTERNOON.  
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
FORECAST DAYS 3 THROUGH 7
 
   
TUESDAY
 
PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS. LOWS IN THE UPPER 40S. HIGHS IN THE UPPER 70S.  
SOUTHEAST WINDS AROUND 5 MPH.    
WEDNESDAY
 
PARTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS. LOWS IN THE UPPER 40S. HIGHS IN THE UPPER 70S.  
SOUTH WINDS AROUND 5 MPH.    
THURSDAY
 
PARTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS. LOWS AROUND 50. HIGHS IN THE UPPER 70S. WINDS  
GENERALLY LESS THAN 10 MPH.    
FRIDAY
 
PARTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS. LOWS AROUND 50. HIGHS IN THE UPPER 70S.    
SATURDAY
 
PARTLY CLOUDY. LOWS IN THE UPPER 40S. HIGHS IN THE  
UPPER 70S.  
 

 
 
WYZ309-202215-  
SOUTH LARAMIE RANGE/MEDICINE BOW NF-  
302 AM MDT SUN AUG 20 2017  
   
TODAY
 
 
SKY/WEATHER.........MOSTLY SUNNY UNTIL 1200, THEN PARTLY CLOUDY.  
SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS  
AFTER 1200.  
MAX TEMPERATURE.....79-85.  
24 HR TREND......3 DEGREES COOLER.  
MIN HUMIDITY........16-22 PERCENT.  
24 HR TREND......10 PERCENT WETTER.  
20-FOOT WINDS.......NORTHWEST AROUND 5 MPH SHIFTING TO THE EAST IN  
THE AFTERNOON. GUSTS UP TO 20 MPH.  
LAL.................1 UNTIL 1200, THEN 3.  
CHC OF WETTING RAIN.5 PERCENT.  
TRANSPORT WINDS.....NORTHWEST AROUND 10 MPH SHIFTING TO THE  
SOUTHWEST IN THE AFTERNOON.  
MIXING HEIGHT.......1200-2100 FT AGL INCREASING TO 11600-13600 FT  
AGL IN THE AFTERNOON.  
SMOKE DISPERSAL.....POOR TO FAIR (14400-44500 KNOT-FT).  
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
TONIGHT
 
 
SKY/WEATHER.........MOSTLY CLOUDY UNTIL 2400, THEN PARTLY CLOUDY.  
SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS  
UNTIL 2400.  
MIN TEMPERATURE.....49-55.  
24 HR TREND......UNCHANGED.  
MAX HUMIDITY........76-82 PERCENT.  
24 HR TREND......23 PERCENT WETTER.  
HUMIDITY RECOVERY...GOOD.  
20-FOOT WINDS.......SOUTH AROUND 10 MPH.  
LAL.................2 UNTIL 2400, THEN 1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTH AROUND 15 MPH.  
MIXING HEIGHT.......400-1100 FT AGL.  
SMOKE DISPERSAL.....POOR (7400-9800 KNOT-FT).  
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED  
FIRE GROWTH.  
   
MONDAY
 
 
SKY/WEATHER.........PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS AFTER 1200.  
MAX TEMPERATURE.....77-83.  
24 HR TREND......UNCHANGED.  
MIN HUMIDITY........19-25 PERCENT.  
24 HR TREND......4 PERCENT WETTER.  
20-FOOT WINDS.......WEST AROUND 10 MPH SHIFTING TO THE NORTH IN THE  
AFTERNOON. GUSTS UP TO 20 MPH.  
LAL.................1 UNTIL 1200, THEN 2.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....NORTHWEST AROUND 15 MPH.  
MIXING HEIGHT.......1300-1900 FT AGL INCREASING TO 10800-12100 FT  
AGL IN THE AFTERNOON.  
SMOKE DISPERSAL.....POOR (20100 KNOT-FT) INCREASING TO VERY GOOD  
(137300 KNOT-FT) IN THE AFTERNOON.  
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED  
FIRE GROWTH.  
   
FORECAST DAYS 3 THROUGH 7
 
   
TUESDAY
 
PARTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS. LOWS AROUND 50. HIGHS IN THE UPPER 70S. SOUTHEAST  
WINDS AROUND 10 MPH.    
WEDNESDAY
 
PARTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS. LOWS IN THE LOWER 50S. HIGHS AROUND 80. SOUTH  
WINDS AROUND 10 MPH.    
THURSDAY
 
PARTLY CLOUDY WITH CHANCE OF SHOWERS AND  
THUNDERSTORMS. LOWS IN THE LOWER 50S. HIGHS IN THE UPPER 70S.  
WINDS GENERALLY LESS THAN 10 MPH.    
FRIDAY
 
PARTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS. LOWS IN THE MID 50S. HIGHS IN THE UPPER 70S.    
SATURDAY
 
PARTLY CLOUDY. LOWS IN THE LOWER 50S. HIGHS IN THE  
UPPER 70S.  
 

 
 
WYZ310-202215-  
PLATTE/GOSHEN/CENTRAL AND EASTERN LARAMIE-  
302 AM MDT SUN AUG 20 2017  
   
TODAY
 
 
SKY/WEATHER.........MOSTLY SUNNY UNTIL 1200, THEN PARTLY CLOUDY.  
SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS  
AFTER 1200.  
MAX TEMPERATURE.....84-89.  
24 HR TREND......8 DEGREES COOLER.  
MIN HUMIDITY........22-28 PERCENT.  
24 HR TREND......15 PERCENT WETTER.  
20-FOOT WINDS.......NORTH AROUND 10 MPH SHIFTING TO THE EAST IN THE  
AFTERNOON. GUSTS UP TO 20 MPH.  
LAL.................1 UNTIL 1200, THEN 2.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....NORTH AROUND 15 MPH BECOMING EAST AROUND 5 MPH  
IN THE AFTERNOON.  
MIXING HEIGHT.......1100-2000 FT AGL INCREASING TO 7900-9900 FT AGL  
IN THE AFTERNOON.  
SMOKE DISPERSAL.....POOR TO FAIR (17800-43700 KNOT-FT).  
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
TONIGHT
 
 
SKY/WEATHER.........PARTLY CLOUDY.  
MIN TEMPERATURE.....53-58.  
24 HR TREND......3 DEGREES WARMER.  
MAX HUMIDITY........87-93 PERCENT.  
24 HR TREND......27 PERCENT WETTER.  
HUMIDITY RECOVERY...EXCELLENT.  
20-FOOT WINDS.......SOUTHEAST 5 TO 10 MPH.  
LAL.................2 UNTIL 2400, THEN 1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTHEAST AROUND 15 MPH.  
MIXING HEIGHT.......400-1800 FT AGL.  
SMOKE DISPERSAL.....POOR (8100-14500 KNOT-FT).  
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED  
FIRE GROWTH.  
   
MONDAY
 
 
SKY/WEATHER.........PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS AFTER 1200.  
MAX TEMPERATURE.....81-86.  
24 HR TREND......3 DEGREES COOLER.  
MIN HUMIDITY........20-26 PERCENT.  
24 HR TREND......2 PERCENT DRIER.  
20-FOOT WINDS.......WEST AROUND 5 MPH SHIFTING TO THE NORTH IN THE  
AFTERNOON. GUSTS UP TO 20 MPH.  
LAL.................1 UNTIL 1200, THEN 2.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....NORTHWEST AROUND 15 MPH.  
MIXING HEIGHT.......1000-1700 FT AGL INCREASING TO 9700-10900 FT  
AGL IN THE AFTERNOON.  
SMOKE DISPERSAL.....POOR (15200 KNOT-FT) INCREASING TO EXCELLENT  
(154400 KNOT-FT) IN THE AFTERNOON.  
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED  
FIRE GROWTH.  
   
FORECAST DAYS 3 THROUGH 7
 
   
TUESDAY
 
PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS. LOWS IN THE LOWER 50S. HIGHS IN THE LOWER 80S.  
EAST WINDS AROUND 10 MPH.    
WEDNESDAY
 
MOSTLY CLEAR. LOWS IN THE MID 50S. HIGHS IN THE MID  
80S. SOUTH WINDS AROUND 10 MPH.    
THURSDAY
 
PARTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS. LOWS IN THE MID 50S. HIGHS IN THE MID 80S. WINDS  
GENERALLY LESS THAN 10 MPH.    
FRIDAY
 
PARTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS. LOWS IN THE UPPER 50S. HIGHS IN THE MID 80S.    
SATURDAY
 
PARTLY CLOUDY. LOWS IN THE MID 50S. HIGHS IN THE MID  
80S.  
 

 
 
NEZ311-202215-  
PINE RIDGE/NEBRASKA NATIONAL FOREST/OGLALA NATIONAL GRASSLANDS-  
302 AM MDT SUN AUG 20 2017  
   
TODAY
 
 
SKY/WEATHER.........MOSTLY SUNNY.  
MAX TEMPERATURE.....82-87.  
24 HR TREND......9 DEGREES COOLER.  
MIN HUMIDITY........28-34 PERCENT.  
24 HR TREND......19 PERCENT WETTER.  
20-FOOT WINDS.......NORTHEAST AROUND 10 MPH AND GUSTY.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....NORTHEAST AROUND 25 MPH BECOMING EAST AROUND 15  
MPH IN THE AFTERNOON.  
MIXING HEIGHT.......1600-2600 FT AGL INCREASING TO 4800-5700 FT AGL  
IN THE AFTERNOON.  
SMOKE DISPERSAL.....FAIR TO GOOD (40700-62100 KNOT-FT).  
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
TONIGHT
 
 
SKY/WEATHER.........PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS UNTIL 2400.  
MIN TEMPERATURE.....56-61.  
24 HR TREND......2 DEGREES WARMER.  
MAX HUMIDITY........89-95 PERCENT.  
24 HR TREND......21 PERCENT WETTER.  
HUMIDITY RECOVERY...EXCELLENT.  
20-FOOT WINDS.......SOUTHEAST 5 TO 10 MPH.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTHEAST AROUND 15 MPH.  
MIXING HEIGHT.......300-1700 FT AGL.  
SMOKE DISPERSAL.....POOR (6500-18100 KNOT-FT).  
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED  
FIRE GROWTH.  
   
MONDAY
 
 
SKY/WEATHER.........PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS AFTER 0900.  
MAX TEMPERATURE.....80-85.  
24 HR TREND......3 DEGREES COOLER.  
MIN HUMIDITY........30-36 PERCENT.  
24 HR TREND......2 PERCENT WETTER.  
20-FOOT WINDS.......SOUTH AROUND 5 MPH SHIFTING TO THE NORTH AND  
GUSTY IN THE AFTERNOON.  
LAL.................2 UNTIL 1500, THEN 3.  
CHC OF WETTING RAIN.5 PERCENT.  
TRANSPORT WINDS.....SOUTHWEST AROUND 10 MPH SHIFTING TO THE NORTH  
IN THE AFTERNOON.  
MIXING HEIGHT.......1100-1700 FT AGL INCREASING TO 7400-8700 FT AGL  
IN THE AFTERNOON.  
SMOKE DISPERSAL.....POOR (7700 KNOT-FT) INCREASING TO GOOD (63600  
KNOT-FT) IN THE AFTERNOON.  
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED  
FIRE GROWTH.  
   
FORECAST DAYS 3 THROUGH 7
 
   
TUESDAY
 
PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS. LOWS IN THE MID 50S. HIGHS IN THE LOWER 80S. EAST  
WINDS AROUND 5 MPH.    
WEDNESDAY
 
MOSTLY CLEAR. LOWS IN THE UPPER 50S. HIGHS IN THE  
UPPER 80S. SOUTH WINDS AROUND 10 MPH.    
THURSDAY
 
PARTLY CLOUDY WITH CHANCE OF SHOWERS AND  
THUNDERSTORMS. LOWS IN THE UPPER 50S. HIGHS IN THE UPPER 80S.  
WINDS GENERALLY LESS THAN 10 MPH.    
FRIDAY
 
PARTLY CLOUDY WITH CHANCE OF SHOWERS AND THUNDERSTORMS.  
LOWS IN THE UPPER 50S. HIGHS IN THE UPPER 80S.    
SATURDAY
 
PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS. LOWS IN THE UPPER 50S. HIGHS IN THE MID 80S.  
 

 
 
NEZ312-202215-  
BOX BUTTE/SOUTH SIOUX-  
302 AM MDT SUN AUG 20 2017  
   
TODAY
 
 
SKY/WEATHER.........MOSTLY SUNNY UNTIL 1500, THEN PARTLY CLOUDY.  
MAX TEMPERATURE.....83-88.  
24 HR TREND......9 DEGREES COOLER.  
MIN HUMIDITY........30-36 PERCENT.  
24 HR TREND......23 PERCENT WETTER.  
20-FOOT WINDS.......NORTHEAST AROUND 10 MPH AND GUSTY.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....EAST 15 TO 20 MPH.  
MIXING HEIGHT.......1300-1800 FT AGL INCREASING TO 4400-5400 FT AGL  
IN THE AFTERNOON.  
SMOKE DISPERSAL.....POOR TO FAIR (23700-55200 KNOT-FT).  
HAINES INDEX........6 OR HIGH POTENTIAL FOR LARGE PLUME DOMINATED  
FIRE GROWTH.  
   
TONIGHT
 
 
SKY/WEATHER.........PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS UNTIL 2400.  
MIN TEMPERATURE.....55-60.  
24 HR TREND......3 DEGREES WARMER.  
MAX HUMIDITY........93-99 PERCENT.  
24 HR TREND......23 PERCENT WETTER.  
HUMIDITY RECOVERY...EXCELLENT.  
20-FOOT WINDS.......SOUTHEAST 5 TO 10 MPH.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTHEAST AROUND 15 MPH.  
MIXING HEIGHT.......400-2000 FT AGL.  
SMOKE DISPERSAL.....POOR (8300-20200 KNOT-FT).  
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
MONDAY
 
 
SKY/WEATHER.........PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS AFTER 0900.  
MAX TEMPERATURE.....81-86.  
24 HR TREND......2 DEGREES COOLER.  
MIN HUMIDITY........31-37 PERCENT.  
24 HR TREND......4 PERCENT DRIER.  
20-FOOT WINDS.......SOUTH AROUND 5 MPH SHIFTING TO THE NORTH AND  
GUSTY IN THE AFTERNOON.  
LAL.................1 UNTIL 1200, THEN 2.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTHWEST AROUND 5 MPH SHIFTING TO THE NORTH IN  
THE AFTERNOON.  
MIXING HEIGHT.......900-1400 FT AGL INCREASING TO 7200-9200 FT AGL  
IN THE AFTERNOON.  
SMOKE DISPERSAL.....POOR (5100 KNOT-FT) INCREASING TO GOOD (66800  
KNOT-FT) IN THE AFTERNOON.  
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED  
FIRE GROWTH.  
   
FORECAST DAYS 3 THROUGH 7
 
   
TUESDAY
 
PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS. LOWS IN THE MID 50S. HIGHS IN THE LOWER 80S. EAST  
WINDS AROUND 5 MPH.    
WEDNESDAY
 
MOSTLY CLEAR. LOWS IN THE MID 50S. HIGHS IN THE MID  
80S. SOUTH WINDS AROUND 10 MPH.    
THURSDAY
 
PARTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS. LOWS IN THE UPPER 50S. HIGHS IN THE MID 80S. WINDS  
GENERALLY LESS THAN 10 MPH.    
FRIDAY
 
PARTLY CLOUDY WITH CHANCE OF SHOWERS AND THUNDERSTORMS.  
LOWS IN THE UPPER 50S. HIGHS IN THE MID 80S.    
SATURDAY
 
PARTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS. LOWS IN THE UPPER 50S. HIGHS IN THE MID 80S.  
 

 
 
NEZ313-202215-  
SCOTTS BLUFF NATIONAL MONUMENT/WILDCAT HILLS-  
302 AM MDT SUN AUG 20 2017  
   
TODAY
 
 
SKY/WEATHER.........MOSTLY SUNNY UNTIL 1200, THEN PARTLY CLOUDY.  
MAX TEMPERATURE.....86-91.  
24 HR TREND......5 DEGREES COOLER.  
MIN HUMIDITY........28-34 PERCENT.  
24 HR TREND......18 PERCENT WETTER.  
20-FOOT WINDS.......NORTH AROUND 10 MPH AND GUSTY.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....NORTH AROUND 10 MPH SHIFTING TO THE NORTHEAST  
IN THE AFTERNOON.  
MIXING HEIGHT.......700-1200 FT AGL INCREASING TO 6300-8300 FT AGL  
IN THE AFTERNOON.  
SMOKE DISPERSAL.....POOR TO FAIR (8800-54600 KNOT-FT).  
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
TONIGHT
 
 
SKY/WEATHER.........PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS UNTIL 2400.  
MIN TEMPERATURE.....56-61.  
24 HR TREND......3 DEGREES WARMER.  
MAX HUMIDITY........93-99 PERCENT.  
24 HR TREND......20 PERCENT WETTER.  
HUMIDITY RECOVERY...EXCELLENT.  
20-FOOT WINDS.......SOUTHEAST 5 TO 10 MPH.  
LAL.................2 UNTIL 2400, THEN 1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTHEAST AROUND 15 MPH.  
MIXING HEIGHT.......300-1900 FT AGL.  
SMOKE DISPERSAL.....POOR (7100-17700 KNOT-FT).  
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
MONDAY
 
 
SKY/WEATHER.........PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS AFTER 1200.  
MAX TEMPERATURE.....84-89.  
24 HR TREND......4 DEGREES COOLER.  
MIN HUMIDITY........29-35 PERCENT.  
24 HR TREND......3 PERCENT DRIER.  
20-FOOT WINDS.......SOUTHWEST AROUND 5 MPH SHIFTING TO THE NORTH IN  
THE AFTERNOON. GUSTS UP TO 15 MPH.  
LAL.................1 UNTIL 1200, THEN 2 UNTIL 1500, THEN 3.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....WEST AROUND 5 MPH SHIFTING TO THE NORTH IN THE  
AFTERNOON.  
MIXING HEIGHT.......1000-1600 FT AGL INCREASING TO 7900-9600 FT AGL  
IN THE AFTERNOON.  
SMOKE DISPERSAL.....POOR (5300 KNOT-FT) INCREASING TO GOOD (69700  
KNOT-FT) IN THE AFTERNOON.  
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED  
FIRE GROWTH.  
   
FORECAST DAYS 3 THROUGH 7
 
   
TUESDAY
 
PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS. LOWS IN THE MID 50S. HIGHS IN THE LOWER 80S.  
NORTHEAST WINDS AROUND 10 MPH.    
WEDNESDAY
 
MOSTLY CLEAR. LOWS IN THE MID 50S. HIGHS IN THE MID  
80S. SOUTH WINDS AROUND 10 MPH.    
THURSDAY
 
PARTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS. LOWS IN THE UPPER 50S. HIGHS IN THE MID 80S. WINDS  
GENERALLY LESS THAN 10 MPH.    
FRIDAY
 
PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS. LOWS IN THE UPPER 50S. HIGHS IN THE MID 80S.    
SATURDAY
 
PARTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS. LOWS IN THE UPPER 50S. HIGHS IN THE MID 80S.  
 

 
 
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