728  
FNUS55 KRIW 190946  
FWFRIW  
 
FIRE WEATHER PLANNING FORECAST FOR WESTERN AND CENTRAL WYOMING  
NATIONAL WEATHER SERVICE RIVERTON WY  
346 AM MDT THU JUN 19 2025  
   
DISCUSSION
 
 
...YELLOWSTONE NP AND TETON DISPATCH AREAS (INCLUDES FIRE WEATHER  
ZONES 140...414...415...AND 416)...  
 
RH VALUES BELOW 20 PERCENT WILL BE WIDESPREAD ACROSS THE DISPATCH  
AREA, WITH PORTIONS DROPPING BELOW 15 PERCENT ESPECIALLY IN ZONES  
414 AND 416. WEST SOUTHWEST WINDS, WITH GUSTS UP TO 35 MPH, WILL  
ALSO OCCUR. THERE IS A CHANCE (30%) FOR SHOWERS AND THUNDERSTORMS  
OVER ZONE 140 AFTER SUNSET. RH RECOVERY WILL BE FAIR TO POOR  
TONIGHT FOR ZONES 414, 415 AND 416. SIMILAR CONDITIONS RETURN  
FRIDAY, ALTHOUGH CRITICAL RH VALUES WILL BE PUSHED TO SOUTHERN  
PORTIONS OF 414/416.  
   
..CODY DISPATCH AREA (INCLUDES FIRE WEATHER ZONES 275...276
 
 
282...283...285...286...287...288...AND 289)...  
 
RH VALUES AS LOW AS 8 PERCENT WILL OCCUR ACROSS MUCH OF THE  
DISPATCH AREA, WITH ZONE 276 DROPPING BELOW 20 PERCENT. WEST  
SOUTHWEST WINDS, WITH GUSTS UP TO 30 MPH, WILL ALSO OCCUR. HIGHER  
GUSTS UP TO 40 MPH WILL OCCUR IN ZONES 286/288. ISOLATED DRY  
THUNDERSTORMS ARE ALSO POSSIBLE OVER THE BIGHORN BASIN THIS  
AFTERNOON. GUSTS UP TO 60 MPH WILL BE POSSIBLE. RH RECOVERY WILL  
BE FAIR TO POOR TONIGHT FROM THE SOUTHERN END OF ZONES 285/288  
SOUTHWARD. SIMILAR CONDITIONS RETURN FRIDAY, WITH GUSTS OF 35 TO  
40 MPH BEING MORE WIDESPREAD.  
   
..CASPER DISPATCH AREA (INCLUDES FIRE WEATHER ZONES 277...278
 
 
279...280...281...285...289...AND 300)...  
 
RH VALUES AS LOW AS 8 PERCENT WILL OCCUR ACROSS MUCH OF THE  
DISPATCH AREA, WITH ZONE 281 DROPPING BELOW 20 PERCENT. WEST  
SOUTHWEST WINDS, WITH GUSTS 25 TO 35 MPH, WILL ALSO OCCUR.  
ISOLATED DRY THUNDERSTORMS ARE ALSO POSSIBLE OVER THE BIGHORN  
MOUNTAINS AND ZONE 281 THIS AFTERNOON. GUSTS UP TO 60 MPH WILL BE  
POSSIBLE. RH RECOVERY WILL BE POOR TONIGHT FOR ZONES 277, 278, 279  
AND 289. SIMILAR CONDITIONS RETURN FRIDAY, WITH GUSTS OF 35 TO 40  
MPH BEING MORE WIDESPREAD.  
   
..THUNDERSTORMS IMPLY STRONG GUSTY AND ERRATIC WINDS
 
 
WYZ280-201200-  
NATRONA COUNTY/CASPER BLM-  
INCLUDING THE CITIES OF CASPER AND MIDWEST  
346 AM MDT THU JUN 19 2025  
   
TODAY
 
 
SKY/WEATHER.........MOSTLY SUNNY.  
CHANCE OF THUNDER...0 PERCENT.  
MAX TEMPERATURE.....88-93.  
24 HR TREND......8 DEGREES WARMER.  
MIN HUMIDITY........9-15 PERCENT.  
24 HR TREND......2 PERCENT DRIER.  
20-FOOT WINDS.......SOUTHWEST WINDS 10 TO 15 MPH. GUSTS UP TO 15  
MPH UNTIL 1200, THEN 30 MPH.  
RIDGE TOP WINDS.....SOUTHWEST 15 TO 20 MPH.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTHWEST AROUND 15 MPH UNTIL 1200, THEN AROUND  
25 MPH.  
MIXING HEIGHT.......3000-5000 FT AGL UNTIL 1200, THEN 12000-14000  
FT AGL.  
SMOKE DISPERSAL.....FAIR TO GOOD UNTIL 1200, THEN EXCELLENT.  
   
TONIGHT
 
 
SKY/WEATHER.........PARTLY CLOUDY.  
CHANCE OF THUNDER...0 PERCENT.  
MIN TEMPERATURE.....58-63.  
24 HR TREND......6 DEGREES WARMER.  
MAX HUMIDITY........45-51 PERCENT.  
24 HR TREND......17 PERCENT DRIER.  
HUMIDITY RECOVERY...MODERATE.  
20-FOOT WINDS.......SOUTHWEST WINDS AROUND 15 MPH WITH GUSTS TO  
AROUND 30 MPH UNTIL 2100, THEN  
DOWNSLOPE/DOWNVALLEY 4-7 MPH UNTIL 0300, THEN  
SOUTH AROUND 10 MPH AND GUSTY.  
RIDGE TOP WINDS.....SOUTHWEST 10 TO 15 MPH.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTHWEST AROUND 15 MPH.  
MIXING HEIGHT.......6000-8000 FT AGL UNTIL 2400, THEN 400-600 FT  
AGL.  
SMOKE DISPERSAL.....VERY GOOD TO EXCELLENT UNTIL 2400, THEN POOR.  
   
FRIDAY
 
 
SKY/WEATHER.........MOSTLY SUNNY.  
CHANCE OF THUNDER...0 PERCENT.  
MAX TEMPERATURE.....87-92.  
24 HR TREND......2 DEGREES COOLER.  
MIN HUMIDITY........5-11 PERCENT.  
24 HR TREND......3 PERCENT DRIER.  
20-FOOT WINDS.......WINDY. SOUTHWEST WINDS AROUND 15 MPH UNTIL  
0900, THEN 25 TO 30 MPH. GUSTS UP TO 45 MPH.  
RIDGE TOP WINDS.....SOUTHWEST AROUND 25 MPH UNTIL 1200, THEN AROUND  
35 MPH.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTHWEST AROUND 30 MPH UNTIL 1200, THEN AROUND  
45 MPH.  
MIXING HEIGHT.......4000-6000 FT AGL UNTIL 1200, THEN 12400-14400  
FT AGL.  
SMOKE DISPERSAL.....EXCELLENT.  
 
   
FORECAST DAYS 3 THROUGH 7...
 
   
FRIDAY NIGHT
 
CLEAR. LOWS IN THE UPPER 50S. SOUTHWEST WINDS  
AROUND 15 MPH.    
SATURDAY
 
MOSTLY CLEAR. SLIGHT CHANCE OF SHOWERS. LOWS IN THE  
UPPER 40S. HIGHS IN THE UPPER 80S. WEST WINDS AROUND 20 MPH.    
SUNDAY
 
NOT AS WARM. PARTLY CLOUDY. CHANCE OF SHOWERS AND  
SLIGHT CHANCE OF THUNDERSTORMS. LOWS IN THE LOWER 40S. HIGHS IN  
THE LOWER 70S. NORTH WINDS AROUND 15 MPH.    
MONDAY
 
PARTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS. LOWS IN THE UPPER 40S. HIGHS IN THE LOWER 70S.  
EAST WINDS AROUND 10 MPH.    
TUESDAY
 
PARTLY CLOUDY WITH CHANCE OF SHOWERS AND SLIGHT CHANCE  
OF THUNDERSTORMS. LOWS IN THE UPPER 40S. HIGHS IN THE MID 70S.    
WEDNESDAY
 
PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS IN THE  
MORNING, THEN CHANCE OF SHOWERS AND THUNDERSTORMS IN THE  
AFTERNOON. HIGHS IN THE MID 70S.  
 

 
 
WYZ283-201200-  
UPPER WIND RIVER BASIN/WIND RIVER BASIN-  
INCLUDING THE CITIES OF CROWHEART, LANDER, RIVERTON, AND SHOSHONI  
346 AM MDT THU JUN 19 2025  
   
TODAY
 
 
SKY/WEATHER.........MOSTLY SUNNY THEN BECOMING PARTLY CLOUDY.  
CHANCE OF THUNDER...0 PERCENT.  
MAX TEMPERATURE.....88-93.  
24 HR TREND......8 DEGREES WARMER.  
MIN HUMIDITY........9-15 PERCENT.  
24 HR TREND......2 PERCENT DRIER.  
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH UNTIL 1200, THEN  
SOUTHWEST 10 TO 15 MPH WITH GUSTS TO AROUND 30  
MPH.  
RIDGE TOP WINDS.....SOUTH AROUND 10 MPH UNTIL 1200, THEN SOUTHWEST  
AROUND 20 MPH.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTHWEST AROUND 10 MPH UNTIL 1200, THEN AROUND  
25 MPH.  
MIXING HEIGHT.......1800-3800 FT AGL UNTIL 1200, THEN 10400-12400  
FT AGL.  
SMOKE DISPERSAL.....POOR TO FAIR UNTIL 1200, THEN EXCELLENT.  
   
TONIGHT
 
 
SKY/WEATHER.........PARTLY CLOUDY.  
CHANCE OF THUNDER...0 PERCENT.  
MIN TEMPERATURE.....55-60.  
24 HR TREND......5 DEGREES WARMER.  
MAX HUMIDITY........36-42 PERCENT.  
24 HR TREND......16 PERCENT DRIER.  
HUMIDITY RECOVERY...POOR.  
20-FOOT WINDS.......WEST WINDS AROUND 15 MPH UNTIL 2100, THEN  
DOWNSLOPE/DOWNVALLEY 4-7 MPH UNTIL 2400, THEN  
SOUTH AROUND 10 MPH. GUSTS UP TO 25 MPH.  
RIDGE TOP WINDS.....WEST AROUND 15 MPH UNTIL 2400, THEN SOUTH.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTHWEST AROUND 15 MPH.  
MIXING HEIGHT.......6400-8400 FT AGL UNTIL 2400, THEN 400-800 FT  
AGL.  
SMOKE DISPERSAL.....EXCELLENT UNTIL 2400, THEN POOR.  
   
FRIDAY
 
 
SKY/WEATHER.........MOSTLY SUNNY.  
CHANCE OF THUNDER...0 PERCENT.  
MAX TEMPERATURE.....84-89.  
24 HR TREND......3 DEGREES COOLER.  
MIN HUMIDITY........10-16 PERCENT.  
24 HR TREND......1 PERCENT WETTER.  
20-FOOT WINDS.......BREEZY. SOUTHWEST WINDS AROUND 15 MPH UNTIL  
0900, THEN AROUND 25 MPH. GUSTS UP TO 40 MPH.  
RIDGE TOP WINDS.....SOUTHWEST 25 TO 30 MPH.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTHWEST 30 TO 35 MPH.  
MIXING HEIGHT.......4000-6000 FT AGL UNTIL 1200, THEN 11800-13800  
FT AGL.  
SMOKE DISPERSAL.....VERY GOOD TO EXCELLENT UNTIL 1200, THEN  
EXCELLENT.  
 
   
FORECAST DAYS 3 THROUGH 7...
 
   
FRIDAY NIGHT
 
CLEAR. LOWS IN THE MID 50S. SOUTHWEST WINDS  
AROUND 15 MPH.    
SATURDAY
 
MOSTLY CLEAR. SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS. LOWS IN THE UPPER 40S. HIGHS IN THE LOWER 80S.  
WEST WINDS AROUND 15 MPH.    
SUNDAY THROUGH MONDAY
 
PARTLY CLOUDY WITH SLIGHT CHANCE OF  
SHOWERS AND THUNDERSTORMS. LOWS 42 TO 47. HIGHS 69 TO 74.  
NORTHEAST WINDS AROUND 10 MPH.    
TUESDAY
 
PARTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS. LOWS IN THE UPPER 40S. HIGHS IN THE MID 70S.    
WEDNESDAY
 
PARTLY CLOUDY. CHANCE OF SHOWERS AND SLIGHT CHANCE  
OF THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE UPPER 70S.  
 

 
 
WYZ285-201200-  
SOUTH BIGHORN MOUNTAINS-  
346 AM MDT THU JUN 19 2025  
   
TODAY
 
 
SKY/WEATHER.........MOSTLY SUNNY. SLIGHT CHANCE OF SHOWERS LATE IN  
THE AFTERNOON. CHANCE OF SHOWERS 20 PERCENT.  
CHANCE OF THUNDER...0 PERCENT.  
MAX TEMPERATURE.....82-87.  
24 HR TREND......9 DEGREES WARMER.  
MIN HUMIDITY........14-20 PERCENT.  
24 HR TREND......4 PERCENT DRIER.  
20-FOOT WINDS.......SOUTHWEST WINDS 10 TO 15 MPH. GUSTS UP TO 15  
MPH UNTIL 1200, THEN 30 MPH.  
RIDGE TOP WINDS.....SOUTHWEST 15 TO 20 MPH.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....WEST AROUND 15 MPH UNTIL 1200, THEN SOUTHWEST  
AROUND 25 MPH.  
MIXING HEIGHT.......2200-4200 FT AGL UNTIL 1200, THEN 9200-11200 FT  
AGL.  
SMOKE DISPERSAL.....POOR TO FAIR UNTIL 1200, THEN EXCELLENT.  
   
TONIGHT
 
 
SKY/WEATHER.........PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS EARLY  
IN THE EVENING. CHANCE OF SHOWERS 20 PERCENT.  
CHANCE OF THUNDER...0 PERCENT.  
MIN TEMPERATURE.....56-61.  
24 HR TREND......3 DEGREES WARMER.  
MAX HUMIDITY........41-47 PERCENT.  
24 HR TREND......7 PERCENT DRIER.  
HUMIDITY RECOVERY...MODERATE.  
20-FOOT WINDS.......WEST WINDS AROUND 10 MPH UNTIL 2100, THEN EAST  
UNTIL 2400, THEN SOUTHEAST UNTIL 0300, THEN  
DOWNSLOPE/DOWNVALLEY 4-7 MPH. GUSTS UP TO 20  
MPH.  
RIDGE TOP WINDS.....NORTHWEST AROUND 15 MPH UNTIL 2400, THEN SOUTH.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....WEST AROUND 15 MPH UNTIL 2400, THEN SOUTH.  
MIXING HEIGHT.......4000-6000 FT AGL UNTIL 2400, THEN 200-600 FT  
AGL.  
SMOKE DISPERSAL.....GOOD TO VERY GOOD UNTIL 2400, THEN POOR.  
   
FRIDAY
 
 
SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING SUNNY.  
CHANCE OF THUNDER...0 PERCENT.  
MAX TEMPERATURE.....79-84.  
24 HR TREND......3 DEGREES COOLER.  
MIN HUMIDITY........13-19 PERCENT.  
24 HR TREND......1 PERCENT DRIER.  
20-FOOT WINDS.......BREEZY. SOUTH WINDS AROUND 15 MPH UNTIL 0900,  
THEN SOUTHWEST 20 TO 25 MPH. GUSTS UP TO 40  
MPH.  
RIDGE TOP WINDS.....SOUTHWEST AROUND 25 MPH.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTHWEST AROUND 30 MPH UNTIL 1200, THEN AROUND  
40 MPH.  
MIXING HEIGHT.......2800-4800 FT AGL UNTIL 1200, THEN 9000-11000 FT  
AGL.  
SMOKE DISPERSAL.....VERY GOOD UNTIL 1200, THEN EXCELLENT.  
 
   
FORECAST DAYS 3 THROUGH 7...
 
   
FRIDAY NIGHT
 
CLEAR. LOWS IN THE MID 50S. SOUTHWEST WINDS  
AROUND 15 MPH.    
SATURDAY
 
MOSTLY CLEAR. CHANCE OF SHOWERS AND SLIGHT CHANCE OF  
THUNDERSTORMS. LOWS IN THE MID 40S. HIGHS IN THE UPPER 70S. WEST  
WINDS AROUND 15 MPH.    
SUNDAY
 
COOLER. PARTLY CLOUDY WITH CHANCE OF SHOWERS AND SLIGHT  
CHANCE OF THUNDERSTORMS. LOWS AROUND 40. HIGHS AROUND 60. NORTH  
WINDS AROUND 15 MPH.    
MONDAY
 
PARTLY CLOUDY WITH CHANCE OF SHOWERS AND SLIGHT CHANCE  
OF THUNDERSTORMS. LOWS IN THE MID 40S. HIGHS IN THE MID 60S.  
SOUTHEAST WINDS AROUND 10 MPH.    
TUESDAY
 
PARTLY CLOUDY WITH CHANCE OF SHOWERS AND SLIGHT CHANCE  
OF THUNDERSTORMS. LOWS IN THE UPPER 40S. HIGHS IN THE UPPER 60S.    
WEDNESDAY
 
PARTLY CLOUDY. CHANCE OF SHOWERS IN THE MORNING,  
THEN CHANCE OF SHOWERS AND THUNDERSTORMS IN THE AFTERNOON. HIGHS  
IN THE UPPER 60S.  
 

 
 
WYZ281-201200-  
JOHNSON COUNTY/CASPER BLM-  
INCLUDING THE CITIES OF BUFFALO AND KAYCEE  
346 AM MDT THU JUN 19 2025  
   
TODAY
 
 
SKY/WEATHER.........MOSTLY SUNNY THEN BECOMING PARTLY CLOUDY.  
SLIGHT CHANCE OF SHOWERS LATE IN THE AFTERNOON.  
CHANCE OF SHOWERS 20 PERCENT.  
CHANCE OF THUNDER...0 PERCENT.  
MAX TEMPERATURE.....84-89.  
24 HR TREND......8 DEGREES WARMER.  
MIN HUMIDITY........17-23 PERCENT.  
24 HR TREND......4 PERCENT DRIER.  
20-FOOT WINDS.......WEST WINDS AROUND 10 MPH WITH GUSTS TO AROUND  
30 MPH.  
RIDGE TOP WINDS.....WEST AROUND 15 MPH.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....WEST 15 TO 20 MPH.  
MIXING HEIGHT.......3600-5600 FT AGL UNTIL 1200, THEN 11400-13400  
FT AGL.  
SMOKE DISPERSAL.....FAIR TO GOOD UNTIL 1200, THEN EXCELLENT.  
   
TONIGHT
 
 
SKY/WEATHER.........PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS EARLY  
IN THE EVENING. CHANCE OF SHOWERS 20 PERCENT.  
CHANCE OF THUNDER...0 PERCENT.  
MIN TEMPERATURE.....56-61.  
24 HR TREND......3 DEGREES WARMER.  
MAX HUMIDITY........57-63 PERCENT.  
24 HR TREND......7 PERCENT DRIER.  
HUMIDITY RECOVERY...GOOD.  
20-FOOT WINDS.......NORTH WINDS AROUND 10 MPH UNTIL 0300, THEN  
DOWNSLOPE/DOWNVALLEY 4-7 MPH. GUSTS UP TO 30  
MPH.  
RIDGE TOP WINDS.....NORTH 10 TO 15 MPH.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....NORTHEAST AROUND 15 MPH UNTIL 2400, THEN  
NORTHWEST.  
MIXING HEIGHT.......3600-5600 FT AGL UNTIL 2400, THEN 400-600 FT  
AGL.  
SMOKE DISPERSAL.....GOOD UNTIL 2400, THEN POOR.  
   
FRIDAY
 
 
SKY/WEATHER.........MOSTLY SUNNY.  
CHANCE OF THUNDER...0 PERCENT.  
MAX TEMPERATURE.....83-88.  
24 HR TREND......1 DEGREE COOLER.  
MIN HUMIDITY........16-22 PERCENT.  
24 HR TREND......3 PERCENT DRIER.  
20-FOOT WINDS.......BREEZY. SOUTHWEST WINDS AROUND 10 MPH UNTIL  
0900, THEN 20 TO 25 MPH UNTIL 1500, THEN WEST  
AROUND 15 MPH. GUSTS UP TO 40 MPH.  
RIDGE TOP WINDS.....SOUTHWEST 20 TO 25 MPH.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTHWEST AROUND 20 MPH UNTIL 1200, THEN AROUND  
35 MPH.  
MIXING HEIGHT.......3200-5200 FT AGL UNTIL 1200, THEN 9600-11600 FT  
AGL.  
SMOKE DISPERSAL.....VERY GOOD UNTIL 1200, THEN EXCELLENT.  
 
   
FORECAST DAYS 3 THROUGH 7...
 
   
FRIDAY NIGHT
 
CLEAR. LOWS IN THE UPPER 50S. SOUTHWEST WINDS  
AROUND 10 MPH.    
SATURDAY
 
MOSTLY CLEAR. CHANCE OF SHOWERS AND SLIGHT CHANCE OF  
THUNDERSTORMS. LOWS IN THE UPPER 40S. HIGHS IN THE MID 80S.  
NORTHWEST WINDS AROUND 15 MPH.    
SUNDAY
 
MUCH COOLER. PARTLY CLOUDY WITH CHANCE OF SHOWERS AND  
SLIGHT CHANCE OF THUNDERSTORMS. LOWS IN THE LOWER 40S. HIGHS IN  
THE MID 60S. NORTH WINDS AROUND 15 MPH.    
MONDAY
 
PARTLY CLOUDY WITH CHANCE OF SHOWERS AND THUNDERSTORMS.  
LOWS IN THE UPPER 40S. HIGHS IN THE UPPER 60S. SOUTHEAST WINDS  
AROUND 10 MPH.    
TUESDAY
 
PARTLY CLOUDY WITH CHANCE OF SHOWERS AND  
THUNDERSTORMS. LOWS IN THE LOWER 50S. HIGHS IN THE LOWER 70S.    
WEDNESDAY
 
PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS IN THE  
MORNING, THEN SHOWERS LIKELY AND CHANCE OF THUNDERSTORMS IN THE  
AFTERNOON. HIGHS IN THE MID 70S.  
 

 
 
WYZ282-201200-  
SOUTH BIGHORN BASIN/WORLAND BLM-  
INCLUDING THE CITIES OF TEN SLEEP, THERMOPOLIS, AND WORLAND  
346 AM MDT THU JUN 19 2025  
   
TODAY
 
 
SKY/WEATHER.........SUNNY THEN BECOMING PARTLY CLOUDY. CHANCE OF  
SHOWERS LATE IN THE AFTERNOON. SLIGHT CHANCE OF  
SHOWERS LATE IN THE AFTERNOON. CHANCE OF  
SHOWERS 40 PERCENT.  
CHANCE OF THUNDER...0 PERCENT.  
MAX TEMPERATURE.....83-88.  
24 HR TREND......8 DEGREES WARMER.  
MIN HUMIDITY........13-19 PERCENT.  
24 HR TREND......4 PERCENT DRIER.  
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH UNTIL 1200, THEN  
SOUTHWEST AROUND 15 MPH WITH GUSTS TO AROUND 30  
MPH.  
RIDGE TOP WINDS.....SOUTH AROUND 10 MPH UNTIL 1200, THEN SOUTHWEST  
AROUND 20 MPH.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTH AROUND 10 MPH UNTIL 1200, THEN SOUTHWEST  
AROUND 20 MPH.  
MIXING HEIGHT.......2000-4000 FT AGL UNTIL 1200, THEN 9800-11800 FT  
AGL.  
SMOKE DISPERSAL.....POOR TO FAIR UNTIL 1200, THEN EXCELLENT.  
   
TONIGHT
 
 
SKY/WEATHER.........PARTLY CLOUDY.  
CHANCE OF THUNDER...0 PERCENT.  
MIN TEMPERATURE.....54-59.  
24 HR TREND......2 DEGREES WARMER.  
MAX HUMIDITY........53-59 PERCENT.  
24 HR TREND......6 PERCENT WETTER.  
HUMIDITY RECOVERY...MODERATE.  
20-FOOT WINDS.......WEST WINDS AROUND 10 MPH UNTIL 2100, THEN SOUTH  
UNTIL 2400, THEN WEST UNTIL 0300, THEN  
DOWNSLOPE/DOWNVALLEY 4-7 MPH. GUSTS UP TO 25  
MPH.  
RIDGE TOP WINDS.....SOUTHWEST AROUND 15 MPH.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTH AROUND 15 MPH UNTIL 2400, THEN WEST.  
MIXING HEIGHT.......3000-5000 FT AGL UNTIL 2400, THEN 400-800 FT  
AGL.  
SMOKE DISPERSAL.....FAIR TO GOOD UNTIL 2400, THEN POOR.  
   
FRIDAY
 
 
SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY SUNNY.  
CHANCE OF THUNDER...0 PERCENT.  
MAX TEMPERATURE.....81-86.  
24 HR TREND......3 DEGREES COOLER.  
MIN HUMIDITY........14-20 PERCENT.  
24 HR TREND......1 PERCENT WETTER.  
20-FOOT WINDS.......SOUTH WINDS AROUND 10 MPH UNTIL 0900, THEN  
NORTHWEST UNTIL 1500, THEN SOUTHWEST. GUSTS UP  
TO 30 MPH.  
RIDGE TOP WINDS.....WEST AROUND 15 MPH.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTHWEST AROUND 15 MPH UNTIL 1200, THEN AROUND  
25 MPH.  
MIXING HEIGHT.......1800-3800 FT AGL UNTIL 1200, THEN 7800-9800 FT  
AGL.  
SMOKE DISPERSAL.....FAIR TO GOOD UNTIL 1200, THEN EXCELLENT.  
 
   
FORECAST DAYS 3 THROUGH 7...
 
   
FRIDAY NIGHT
 
CLEAR. LOWS IN THE MID 50S. SOUTHWEST WINDS  
AROUND 10 MPH.    
SATURDAY
 
PARTLY CLOUDY. CHANCE OF SHOWERS AND SLIGHT CHANCE OF  
THUNDERSTORMS. LOWS IN THE UPPER 40S. HIGHS IN THE MID 80S. WEST  
WINDS AROUND 15 MPH.    
SUNDAY
 
COOLER. PARTLY CLOUDY WITH CHANCE OF SHOWERS AND SLIGHT  
CHANCE OF THUNDERSTORMS. LOWS IN THE LOWER 40S. HIGHS IN THE MID  
60S. NORTHWEST WINDS AROUND 10 MPH.    
MONDAY
 
PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS. LOWS IN THE UPPER 40S. HIGHS IN THE LOWER 70S.  
WINDS GENERALLY LESS THAN 10 MPH.    
TUESDAY
 
PARTLY CLOUDY WITH CHANCE OF SHOWERS AND SLIGHT CHANCE  
OF THUNDERSTORMS. LOWS AROUND 50. HIGHS IN THE MID 70S.    
WEDNESDAY
 
PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS IN THE  
MORNING, THEN CHANCE OF SHOWERS AND SLIGHT CHANCE OF  
THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE UPPER 70S.  
 

 
 
WYZ275-201200-  
NORTH BIGHORN BASIN/WORLAND BLM-  
INCLUDING THE CITIES OF GREYBULL, LOVELL, AND POWELL  
346 AM MDT THU JUN 19 2025  
   
TODAY
 
 
SKY/WEATHER.........MOSTLY SUNNY THEN BECOMING PARTLY CLOUDY.  
SLIGHT CHANCE OF SHOWERS EARLY IN THE  
AFTERNOON. SLIGHT CHANCE OF DRY THUNDERSTORMS  
LATE IN THE AFTERNOON. CHANCE OF PRECIPITATION  
20 PERCENT.  
CHANCE OF THUNDER...20 PERCENT.  
MAX TEMPERATURE.....81-86.  
24 HR TREND......7 DEGREES WARMER.  
MIN HUMIDITY........16-22 PERCENT.  
24 HR TREND......3 PERCENT DRIER.  
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH UNTIL 0900, THEN  
SOUTHEAST 10 TO 15 MPH WITH GUSTS TO AROUND 30  
MPH.  
RIDGE TOP WINDS.....SOUTHEAST 10 TO 15 MPH.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTH 15 TO 20 MPH.  
MIXING HEIGHT.......1600-3600 FT AGL UNTIL 1200, THEN 8400-10400 FT  
AGL.  
SMOKE DISPERSAL.....POOR UNTIL 1200, THEN EXCELLENT.  
   
TONIGHT
 
 
SKY/WEATHER.........PARTLY CLOUDY.  
CHANCE OF THUNDER...0 PERCENT.  
MIN TEMPERATURE.....53-58.  
24 HR TREND......1 DEGREE WARMER.  
MAX HUMIDITY........55-61 PERCENT.  
24 HR TREND......9 PERCENT WETTER.  
HUMIDITY RECOVERY...MODERATE.  
20-FOOT WINDS.......SOUTH WINDS AROUND 15 MPH WITH GUSTS TO AROUND  
35 MPH UNTIL 2100, THEN NORTHWEST WITH GUSTS TO  
AROUND 45 MPH.  
RIDGE TOP WINDS.....SOUTHWEST AROUND 15 MPH UNTIL 2400, THEN  
NORTHWEST.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTHEAST AROUND 15 MPH UNTIL 2400, THEN  
NORTHWEST.  
MIXING HEIGHT.......2800-4800 FT AGL UNTIL 2400, THEN 400-800 FT  
AGL.  
SMOKE DISPERSAL.....FAIR TO GOOD UNTIL 2400, THEN POOR.  
   
FRIDAY
 
 
SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY SUNNY.  
SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS LATE  
IN THE AFTERNOON. CHANCE OF PRECIPITATION 20  
PERCENT.  
CHANCE OF THUNDER...10 PERCENT.  
MAX TEMPERATURE.....78-83.  
24 HR TREND......4 DEGREES COOLER.  
MIN HUMIDITY........19-25 PERCENT.  
24 HR TREND......4 PERCENT WETTER.  
20-FOOT WINDS.......NORTHWEST WINDS 10 TO 15 MPH UNTIL 1200, THEN  
NORTH UNTIL 1500, THEN SOUTH. GUSTS UP TO 30  
MPH.  
RIDGE TOP WINDS.....NORTHWEST AROUND 15 MPH UNTIL 1200, THEN  
SOUTHEAST.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....WEST AROUND 15 MPH.  
MIXING HEIGHT.......1200-3200 FT AGL UNTIL 1200, THEN 5600-7600 FT  
AGL.  
SMOKE DISPERSAL.....POOR TO FAIR UNTIL 1200, THEN GOOD TO VERY  
GOOD.  
 
   
FORECAST DAYS 3 THROUGH 7...
 
   
FRIDAY NIGHT
 
MOSTLY CLEAR. SLIGHT CHANCE OF SHOWERS IN THE  
EVENING. LOWS IN THE MID 50S. WEST WINDS AROUND 10 MPH.    
SATURDAY
 
PARTLY CLOUDY. SHOWERS LIKELY AND SLIGHT CHANCE OF  
THUNDERSTORMS. LOWS IN THE UPPER 40S. HIGHS IN THE LOWER 80S.  
NORTHWEST WINDS AROUND 15 MPH.    
SUNDAY
 
COOLER. PARTLY CLOUDY WITH SHOWERS LIKELY AND SLIGHT  
CHANCE OF THUNDERSTORMS. LOWS IN THE LOWER 40S. HIGHS IN THE MID  
60S. NORTHWEST WINDS AROUND 15 MPH.    
MONDAY
 
PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS. LOWS IN THE UPPER 40S. HIGHS IN THE LOWER 70S.  
WINDS GENERALLY LESS THAN 10 MPH.    
TUESDAY
 
PARTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS. LOWS IN THE LOWER 50S. HIGHS IN THE MID 70S.    
WEDNESDAY
 
PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS IN THE  
MORNING, THEN CHANCE OF SHOWERS AND SLIGHT CHANCE OF  
THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE UPPER 70S.  
 

 
 
WYZ276-201200-  
CODY FOOTHILLS-  
INCLUDING THE CITIES OF CLARK, CODY, AND MEETEETSE  
346 AM MDT THU JUN 19 2025  
   
TODAY
 
 
SKY/WEATHER.........MOSTLY SUNNY THEN BECOMING PARTLY CLOUDY.  
SLIGHT CHANCE OF SHOWERS AND DRY THUNDERSTORMS  
IN THE AFTERNOON. CHANCE OF PRECIPITATION 20  
PERCENT.  
CHANCE OF THUNDER...20 PERCENT.  
MAX TEMPERATURE.....84-89.  
24 HR TREND......6 DEGREES WARMER.  
MIN HUMIDITY........18-24 PERCENT.  
24 HR TREND......UNCHANGED.  
20-FOOT WINDS.......SOUTHWEST WINDS AROUND 10 MPH WITH HIGHER GUSTS  
UNTIL 1200. WEST AROUND 20 MPH WITH GUSTS TO  
AROUND 35 MPH AFTER 1500.  
RIDGE TOP WINDS.....SOUTHWEST 15 TO 20 MPH.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....WEST AROUND 15 MPH UNTIL 1200, THEN SOUTHWEST  
AROUND 25 MPH.  
MIXING HEIGHT.......2800-4800 FT AGL UNTIL 1200, THEN 9400-11400 FT  
AGL.  
SMOKE DISPERSAL.....FAIR TO GOOD UNTIL 1200, THEN EXCELLENT.  
   
TONIGHT
 
 
SKY/WEATHER.........MOSTLY CLEAR. SLIGHT CHANCE OF SHOWERS EARLY IN  
THE EVENING. CHANCE OF SHOWERS 20 PERCENT.  
CHANCE OF THUNDER...0 PERCENT.  
MIN TEMPERATURE.....52-57.  
24 HR TREND......2 DEGREES COOLER.  
MAX HUMIDITY........53-59 PERCENT.  
24 HR TREND......11 PERCENT WETTER.  
HUMIDITY RECOVERY...MODERATE.  
20-FOOT WINDS.......NORTHWEST WINDS AROUND 15 MPH UNTIL 0300, THEN  
DOWNSLOPE/DOWNVALLEY 4-7 MPH. GUSTS UP TO 35  
MPH.  
RIDGE TOP WINDS.....NORTHWEST 15 TO 20 MPH.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....NORTHWEST 15 TO 20 MPH.  
MIXING HEIGHT.......4000-6000 FT AGL UNTIL 2400, THEN 600-1200 FT  
AGL.  
SMOKE DISPERSAL.....GOOD TO VERY GOOD UNTIL 2400, THEN POOR.  
   
FRIDAY
 
 
SKY/WEATHER.........MOSTLY SUNNY THEN BECOMING PARTLY CLOUDY.  
SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS IN  
THE AFTERNOON. CHANCE OF PRECIPITATION 20  
PERCENT.  
CHANCE OF THUNDER...20 PERCENT.  
MAX TEMPERATURE.....79-84.  
24 HR TREND......4 DEGREES COOLER.  
MIN HUMIDITY........21-27 PERCENT.  
24 HR TREND......4 PERCENT WETTER.  
20-FOOT WINDS.......NORTHEAST WINDS 10 TO 15 MPH UNTIL 1500, THEN  
SOUTH. GUSTS UP TO 30 MPH.  
RIDGE TOP WINDS.....NORTH AROUND 15 MPH UNTIL 1200, THEN SOUTHEAST.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....NORTHWEST AROUND 15 MPH UNTIL 1200, THEN  
SOUTHWEST.  
MIXING HEIGHT.......1800-3800 FT AGL UNTIL 1200, THEN 5200-7200 FT  
AGL.  
SMOKE DISPERSAL.....POOR TO FAIR UNTIL 1200, THEN VERY GOOD.  
 
   
FORECAST DAYS 3 THROUGH 7...
 
   
FRIDAY NIGHT
 
MOSTLY CLEAR. SLIGHT CHANCE OF SHOWERS IN THE  
EVENING. LOWS IN THE LOWER 50S. WEST WINDS AROUND 10 MPH.    
SATURDAY
 
PARTLY CLOUDY. CHANCE OF SHOWERS AND SLIGHT CHANCE OF  
THUNDERSTORMS. LOWS IN THE LOWER 40S. HIGHS IN THE MID 70S.  
NORTHWEST WINDS AROUND 15 MPH.    
SUNDAY
 
COOLER. PARTLY CLOUDY WITH SHOWERS LIKELY AND SLIGHT  
CHANCE OF THUNDERSTORMS. LOWS IN THE UPPER 30S. HIGHS IN THE  
UPPER 50S. NORTHWEST WINDS AROUND 10 MPH.    
MONDAY
 
PARTLY CLOUDY. CHANCE OF SHOWERS AND SLIGHT CHANCE OF  
THUNDERSTORMS. LOWS IN THE MID 40S. HIGHS IN THE MID 60S. WINDS  
GENERALLY LESS THAN 10 MPH.    
TUESDAY
 
PARTLY CLOUDY WITH CHANCE OF SHOWERS AND  
THUNDERSTORMS. LOWS IN THE UPPER 40S. HIGHS AROUND 70.    
WEDNESDAY
 
PARTLY CLOUDY. CHANCE OF SHOWERS AND THUNDERSTORMS  
IN THE AFTERNOON. HIGHS IN THE LOWER 70S.  
 

 
 
WYZ287-201200-  
OWL CREEK MOUNTAINS-  
346 AM MDT THU JUN 19 2025  
   
TODAY
 
 
SKY/WEATHER.........MOSTLY SUNNY. CHANCE OF SHOWERS AND SLIGHT  
CHANCE OF DRY THUNDERSTORMS IN THE AFTERNOON.  
CHANCE OF PRECIPITATION 40 PERCENT.  
CHANCE OF THUNDER...20 PERCENT.  
MAX TEMPERATURE.....82-87.  
24 HR TREND......7 DEGREES WARMER.  
MIN HUMIDITY........14-20 PERCENT.  
24 HR TREND......2 PERCENT DRIER.  
20-FOOT WINDS.......SOUTHWEST WINDS 10 TO 15 MPH. GUSTS UP TO 20  
MPH UNTIL 1200, THEN 30 MPH.  
RIDGE TOP WINDS.....SOUTHWEST 15 TO 20 MPH.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTHWEST AROUND 15 MPH UNTIL 1200, THEN AROUND  
25 MPH.  
MIXING HEIGHT.......1400-3400 FT AGL UNTIL 1200, THEN 7800-9800 FT  
AGL.  
SMOKE DISPERSAL.....POOR TO FAIR UNTIL 1200, THEN EXCELLENT.  
   
TONIGHT
 
 
SKY/WEATHER.........PARTLY CLOUDY.  
CHANCE OF THUNDER...0 PERCENT.  
MIN TEMPERATURE.....55-60.  
24 HR TREND......1 DEGREE COOLER.  
MAX HUMIDITY........46-52 PERCENT.  
24 HR TREND......4 PERCENT WETTER.  
HUMIDITY RECOVERY...MODERATE.  
20-FOOT WINDS.......WEST WINDS 10 TO 15 MPH WITH GUSTS TO AROUND 30  
MPH UNTIL 2400, THEN DOWNSLOPE/DOWNVALLEY 4-7  
MPH.  
RIDGE TOP WINDS.....WEST 10 TO 15 MPH.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTHWEST 10 TO 15 MPH.  
MIXING HEIGHT.......4000-6000 FT AGL UNTIL 2400, THEN 200-600 FT  
AGL.  
SMOKE DISPERSAL.....GOOD TO VERY GOOD UNTIL 2400, THEN POOR.  
   
FRIDAY
 
 
SKY/WEATHER.........MOSTLY SUNNY.  
CHANCE OF THUNDER...0 PERCENT.  
MAX TEMPERATURE.....78-83.  
24 HR TREND......4 DEGREES COOLER.  
MIN HUMIDITY........15-21 PERCENT.  
24 HR TREND......1 PERCENT WETTER.  
20-FOOT WINDS.......SOUTH WINDS AROUND 10 MPH WITH GUSTS TO AROUND  
25 MPH UNTIL 0900, THEN WEST WITH GUSTS TO  
AROUND 35 MPH UNTIL 1500, THEN SOUTHWEST AROUND  
20 MPH WITH GUSTS TO AROUND 35 MPH.  
RIDGE TOP WINDS.....SOUTHWEST 15 TO 20 MPH.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTHWEST AROUND 20 MPH UNTIL 1200, THEN AROUND  
30 MPH.  
MIXING HEIGHT.......2000-4000 FT AGL UNTIL 1200, THEN 8200-10200 FT  
AGL.  
SMOKE DISPERSAL.....FAIR TO GOOD UNTIL 1200, THEN EXCELLENT.  
 
   
FORECAST DAYS 3 THROUGH 7...
 
   
FRIDAY NIGHT
 
CLEAR. LOWS IN THE LOWER 50S. SOUTHWEST WINDS  
AROUND 15 MPH.    
SATURDAY
 
PARTLY CLOUDY. CHANCE OF SHOWERS AND SLIGHT CHANCE OF  
THUNDERSTORMS. LOWS IN THE MID 40S. HIGHS IN THE MID 70S. WEST  
WINDS AROUND 15 MPH.    
SUNDAY
 
COOLER. PARTLY CLOUDY WITH CHANCE OF SHOWERS AND SLIGHT  
CHANCE OF THUNDERSTORMS. LOWS AROUND 40. HIGHS IN THE UPPER 50S.  
NORTH WINDS AROUND 15 MPH.    
MONDAY
 
PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS. LOWS IN THE MID 40S. HIGHS IN THE MID 60S.  
SOUTHEAST WINDS AROUND 10 MPH.    
TUESDAY
 
PARTLY CLOUDY WITH CHANCE OF SHOWERS AND  
THUNDERSTORMS. LOWS IN THE UPPER 40S. HIGHS IN THE UPPER 60S.    
WEDNESDAY
 
PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS IN THE  
MORNING, THEN CHANCE OF SHOWERS AND THUNDERSTORMS IN THE  
AFTERNOON. HIGHS AROUND 70.  
 

 
 
WYZ286-201200-  
ABSAROKA MOUNTAINS/NORTH SHOSHONE NF-  
INCLUDING THE CITY OF PAHASKA  
346 AM MDT THU JUN 19 2025  
   
TODAY
 
 
SKY/WEATHER.........MOSTLY SUNNY THEN BECOMING PARTLY CLOUDY.  
SLIGHT CHANCE OF SHOWERS AND DRY THUNDERSTORMS  
IN THE AFTERNOON. CHANCE OF PRECIPITATION 20  
PERCENT.  
CHANCE OF THUNDER...20 PERCENT.  
MAX TEMPERATURE.....74-79.  
24 HR TREND......6 DEGREES WARMER.  
MIN HUMIDITY........16-22 PERCENT.  
24 HR TREND......2 PERCENT DRIER.  
20-FOOT WINDS.......SOUTHWEST WINDS 10 TO 15 MPH WITH GUSTS TO  
AROUND 40 MPH UNTIL 1500, THEN AROUND 20 MPH  
WITH GUSTS TO AROUND 40 MPH.  
RIDGE TOP WINDS.....WEST AROUND 15 MPH UNTIL 1200, THEN SOUTHWEST  
AROUND 25 MPH.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....WEST AROUND 15 MPH UNTIL 1200, THEN SOUTHWEST  
AROUND 30 MPH.  
MIXING HEIGHT.......2800-4800 FT AGL UNTIL 1200, THEN 9800-11800 FT  
AGL.  
SMOKE DISPERSAL.....GOOD UNTIL 1200, THEN EXCELLENT.  
   
TONIGHT
 
 
SKY/WEATHER.........PARTLY CLOUDY. CHANCE OF SHOWERS AND SLIGHT  
CHANCE OF DRY THUNDERSTORMS IN THE EVENING.  
CHANCE OF PRECIPITATION 50 PERCENT.  
CHANCE OF THUNDER...10 PERCENT.  
MIN TEMPERATURE.....45-50.  
24 HR TREND......1 DEGREE WARMER.  
MAX HUMIDITY........52-58 PERCENT.  
24 HR TREND......6 PERCENT DRIER.  
HUMIDITY RECOVERY...MODERATE.  
20-FOOT WINDS.......SOUTHWEST WINDS AROUND 15 MPH WITH GUSTS TO  
AROUND 35 MPH UNTIL 2100, THEN  
DOWNSLOPE/DOWNVALLEY 4-7 MPH.  
RIDGE TOP WINDS.....SOUTHWEST AROUND 15 MPH UNTIL 2400, THEN SOUTH.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTHWEST 15 TO 20 MPH.  
MIXING HEIGHT.......4800-6800 FT AGL UNTIL 2400, THEN 400-1200 FT  
AGL.  
SMOKE DISPERSAL.....VERY GOOD UNTIL 2400, THEN POOR.  
   
FRIDAY
 
 
SKY/WEATHER.........MOSTLY SUNNY THEN BECOMING PARTLY CLOUDY.  
SLIGHT CHANCE OF SHOWERS LATE IN THE MORNING.  
SLIGHT CHANCE OF THUNDERSTORMS IN THE  
AFTERNOON. CHANCE OF PRECIPITATION 20 PERCENT.  
CHANCE OF THUNDER...20 PERCENT.  
MAX TEMPERATURE.....71-76.  
24 HR TREND......4 DEGREES COOLER.  
MIN HUMIDITY........20-26 PERCENT.  
24 HR TREND......3 PERCENT WETTER.  
20-FOOT WINDS.......WEST WINDS AROUND 10 MPH WITH GUSTS TO AROUND  
30 MPH UNTIL 1200, THEN SOUTHWEST AROUND 20 MPH  
WITH GUSTS TO AROUND 40 MPH.  
RIDGE TOP WINDS.....WEST AROUND 15 MPH UNTIL 1200, THEN SOUTHWEST  
AROUND 25 MPH.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTHWEST AROUND 20 MPH UNTIL 1200, THEN AROUND  
35 MPH.  
MIXING HEIGHT.......2800-4800 FT AGL UNTIL 1200, THEN 7400-9400 FT  
AGL.  
SMOKE DISPERSAL.....GOOD UNTIL 1200, THEN EXCELLENT.  
 
   
FORECAST DAYS 3 THROUGH 7...
 
   
FRIDAY NIGHT
 
MOSTLY CLEAR. SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS IN THE EVENING, THEN SLIGHT CHANCE OF SHOWERS AFTER  
MIDNIGHT. LOWS IN THE MID 40S. WEST WINDS AROUND 15 MPH.    
SATURDAY
 
COOLER. PARTLY CLOUDY. CHANCE OF SHOWERS, SNOW  
SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS. LOWS IN THE MID 30S.  
HIGHS IN THE LOWER 60S. WEST WINDS AROUND 15 MPH.    
SUNDAY
 
COOLER. PARTLY CLOUDY WITH SHOWERS, SNOW SHOWERS LIKELY  
AND SLIGHT CHANCE OF THUNDERSTORMS. LOWS IN THE LOWER 30S. HIGHS  
IN THE LOWER 50S. WEST WINDS AROUND 10 MPH.    
MONDAY
 
PARTLY CLOUDY. CHANCE OF SHOWERS AND SLIGHT CHANCE OF  
THUNDERSTORMS. LOWS IN THE UPPER 30S. HIGHS IN THE UPPER 50S.  
SOUTHWEST WINDS AROUND 10 MPH.    
TUESDAY
 
PARTLY CLOUDY WITH CHANCE OF SHOWERS AND SLIGHT CHANCE  
OF THUNDERSTORMS. LOWS AROUND 40. HIGHS IN THE LOWER 60S.    
WEDNESDAY
 
PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS IN THE  
MORNING, THEN CHANCE OF SHOWERS AND SLIGHT CHANCE OF  
THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE MID 60S.  
 

 
 
WYZ140-201200-  
YELLOWSTONE NATIONAL PARK-  
INCLUDING THE CITIES OF LAKE, MAMMOTH, AND OLD FAITHFUL  
346 AM MDT THU JUN 19 2025  
   
TODAY
 
 
SKY/WEATHER.........MOSTLY SUNNY. SLIGHT CHANCE OF SHOWERS AND DRY  
THUNDERSTORMS LATE IN THE AFTERNOON. CHANCE OF  
PRECIPITATION 20 PERCENT.  
CHANCE OF THUNDER...10 PERCENT.  
MAX TEMPERATURE.....76-81.  
24 HR TREND......6 DEGREES WARMER.  
MIN HUMIDITY........16-22 PERCENT.  
24 HR TREND......3 PERCENT DRIER.  
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH UNTIL 0900. WINDS  
SOUTHWEST AROUND 20 MPH WITH GUSTS TO AROUND 35  
MPH AFTER 1200.  
RIDGE TOP WINDS.....SOUTH AROUND 15 MPH UNTIL 1200, THEN SOUTHWEST  
AROUND 25 MPH.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTHWEST AROUND 15 MPH UNTIL 1200, THEN AROUND  
30 MPH.  
MIXING HEIGHT.......2600-4600 FT AGL UNTIL 1200, THEN 9600-11600 FT  
AGL.  
SMOKE DISPERSAL.....FAIR TO GOOD UNTIL 1200, THEN EXCELLENT.  
   
TONIGHT
 
 
SKY/WEATHER.........PARTLY CLOUDY. CHANCE OF SHOWERS AND SLIGHT  
CHANCE OF DRY THUNDERSTORMS IN THE EVENING.  
SLIGHT CHANCE OF SHOWERS AFTER MIDNIGHT. CHANCE  
OF PRECIPITATION 50 PERCENT.  
CHANCE OF THUNDER...20 PERCENT.  
MIN TEMPERATURE.....42-47.  
24 HR TREND......1 DEGREE WARMER.  
MAX HUMIDITY........66-72 PERCENT.  
24 HR TREND......1 PERCENT DRIER.  
HUMIDITY RECOVERY...GOOD.  
20-FOOT WINDS.......SOUTHWEST WINDS AROUND 15 MPH WITH GUSTS TO  
AROUND 35 MPH UNTIL 2100, THEN  
DOWNSLOPE/DOWNVALLEY 4-7 MPH.  
RIDGE TOP WINDS.....SOUTHWEST AROUND 15 MPH UNTIL 2400, THEN EAST.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTHWEST AROUND 15 MPH UNTIL 2400, THEN  
SOUTHEAST.  
MIXING HEIGHT.......4000-6000 FT AGL UNTIL 2400, THEN 400-800 FT  
AGL.  
SMOKE DISPERSAL.....VERY GOOD UNTIL 2400, THEN POOR.  
   
FRIDAY
 
 
SKY/WEATHER.........PARTLY CLOUDY. SLIGHT CHANCE OF THUNDERSTORMS  
IN THE MORNING. CHANCE OF SHOWERS THROUGH THE  
DAY. CHANCE OF THUNDERSTORMS IN THE AFTERNOON.  
CHANCE OF PRECIPITATION 50 PERCENT.  
CHANCE OF THUNDER...30 PERCENT.  
MAX TEMPERATURE.....69-74.  
24 HR TREND......6 DEGREES COOLER.  
MIN HUMIDITY........23-29 PERCENT.  
24 HR TREND......7 PERCENT WETTER.  
20-FOOT WINDS.......BREEZY. UPSLOPE/UPVALLEY 5-9 MPH UNTIL 0900,  
THEN WEST AROUND 10 MPH WITH GUSTS TO AROUND 30  
MPH UNTIL 1200, THEN SOUTHWEST 20 TO 25 MPH  
WITH GUSTS TO AROUND 45 MPH.  
RIDGE TOP WINDS.....NORTHWEST AROUND 15 MPH UNTIL 1200, THEN  
SOUTHWEST AROUND 25 MPH.  
CHC OF WETTING RAIN.ZERO PERCENT UNTIL 1200, THEN 10 PERCENT.  
TRANSPORT WINDS.....WEST AROUND 15 MPH UNTIL 1200, THEN SOUTHWEST  
AROUND 35 MPH.  
MIXING HEIGHT.......2400-4400 FT AGL UNTIL 1200, THEN 7400-9400 FT  
AGL.  
SMOKE DISPERSAL.....GOOD UNTIL 1200, THEN EXCELLENT.  
 
   
FORECAST DAYS 3 THROUGH 7...
 
   
FRIDAY NIGHT
 
PARTLY CLOUDY. CHANCE OF SHOWERS AND SLIGHT  
CHANCE OF THUNDERSTORMS IN THE EVENING, THEN SLIGHT CHANCE OF  
SHOWERS AFTER MIDNIGHT. LOWS IN THE UPPER 30S. SOUTHWEST WINDS  
AROUND 10 MPH.    
SATURDAY
 
COOLER. PARTLY CLOUDY. CHANCE OF SHOWERS, SNOW  
SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS. LOWS IN THE LOWER  
30S. HIGHS IN THE UPPER 50S. SOUTHWEST WINDS AROUND 10 MPH.    
SUNDAY
 
PARTLY CLOUDY WITH SNOW SHOWERS, SHOWERS LIKELY AND  
SLIGHT CHANCE OF THUNDERSTORMS. LOWS IN THE UPPER 20S. HIGHS  
AROUND 50. SOUTHWEST WINDS AROUND 10 MPH.    
MONDAY
 
MOSTLY CLEAR. SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS. LOWS IN THE LOWER 30S. HIGHS IN THE UPPER 50S.  
WINDS GENERALLY LESS THAN 10 MPH.    
TUESDAY
 
PARTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS. LOWS IN THE MID 30S. HIGHS IN THE MID 60S.    
WEDNESDAY
 
MOSTLY SUNNY. CHANCE OF SHOWERS AND SLIGHT CHANCE OF  
THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE UPPER 60S.  
 

 
 
WYZ415-201200-  
NORTH ZONE BRIDGER TETON NF AND GRAND TETON NP-  
INCLUDING THE CITIES OF JACKSON AND MORAN  
346 AM MDT THU JUN 19 2025  
   
TODAY
 
 
SKY/WEATHER.........MOSTLY SUNNY.  
CHANCE OF THUNDER...0 PERCENT.  
MAX TEMPERATURE.....76-81.  
24 HR TREND......6 DEGREES WARMER.  
MIN HUMIDITY........17-23 PERCENT.  
24 HR TREND......4 PERCENT DRIER.  
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH UNTIL 0900, THEN  
SOUTHWEST 10 TO 15 MPH WITH GUSTS TO AROUND 35  
MPH.  
RIDGE TOP WINDS.....SOUTHWEST 15 TO 20 MPH.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTH AROUND 15 MPH UNTIL 1200, THEN SOUTHWEST  
AROUND 30 MPH.  
MIXING HEIGHT.......2200-4200 FT AGL UNTIL 1200, THEN 9600-11600 FT  
AGL.  
SMOKE DISPERSAL.....FAIR TO GOOD UNTIL 1200, THEN EXCELLENT.  
   
TONIGHT
 
 
SKY/WEATHER.........MOSTLY CLEAR.  
CHANCE OF THUNDER...0 PERCENT.  
MIN TEMPERATURE.....43-48.  
24 HR TREND......2 DEGREES WARMER.  
MAX HUMIDITY........53-59 PERCENT.  
24 HR TREND......12 PERCENT DRIER.  
HUMIDITY RECOVERY...MODERATE.  
20-FOOT WINDS.......SOUTHWEST WINDS AROUND 15 MPH UNTIL 2100, THEN  
DOWNSLOPE/DOWNVALLEY 4-7 MPH UNTIL 2400, THEN  
SOUTH AROUND 10 MPH. GUSTS UP TO 35 MPH.  
RIDGE TOP WINDS.....SOUTH AROUND 15 MPH.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTH AROUND 15 MPH.  
MIXING HEIGHT.......5000-7000 FT AGL UNTIL 2400, THEN 400-1000 FT  
AGL.  
SMOKE DISPERSAL.....VERY GOOD UNTIL 2400, THEN POOR.  
   
FRIDAY
 
 
SKY/WEATHER.........MOSTLY SUNNY. SLIGHT CHANCE OF SHOWERS LATE IN  
THE MORNING. SLIGHT CHANCE OF THUNDERSTORMS IN  
THE AFTERNOON. CHANCE OF PRECIPITATION 20  
PERCENT.  
CHANCE OF THUNDER...10 PERCENT.  
MAX TEMPERATURE.....70-75.  
24 HR TREND......5 DEGREES COOLER.  
MIN HUMIDITY........21-27 PERCENT.  
24 HR TREND......3 PERCENT WETTER.  
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH UNTIL 0900. WINDS  
SOUTHWEST 15 TO 20 MPH WITH GUSTS TO AROUND 40  
MPH AFTER 1200.  
RIDGE TOP WINDS.....WEST AROUND 10 MPH UNTIL 1200, THEN SOUTHWEST  
AROUND 25 MPH.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTHWEST AROUND 15 MPH UNTIL 1200, THEN AROUND  
35 MPH.  
MIXING HEIGHT.......2800-4800 FT AGL UNTIL 1200, THEN 8000-10000 FT  
AGL.  
SMOKE DISPERSAL.....GOOD UNTIL 1200, THEN EXCELLENT.  
 
   
FORECAST DAYS 3 THROUGH 7...
 
   
FRIDAY NIGHT
 
PARTLY CLOUDY. LOWS IN THE UPPER 30S. SOUTHWEST  
WINDS AROUND 10 MPH.    
SATURDAY
 
COOLER. PARTLY CLOUDY. CHANCE OF SNOW SHOWERS AND  
SLIGHT CHANCE OF SHOWERS. LOWS IN THE LOWER 30S. HIGHS IN THE  
UPPER 50S. WEST WINDS AROUND 10 MPH.    
SUNDAY
 
PARTLY CLOUDY WITH CHANCE OF SNOW SHOWERS, SHOWERS AND  
SLIGHT CHANCE OF THUNDERSTORMS. LOWS IN THE UPPER 20S. HIGHS IN  
THE LOWER 50S. SOUTHWEST WINDS AROUND 10 MPH.    
MONDAY
 
MOSTLY CLEAR. SLIGHT CHANCE OF SHOWERS. LOWS IN THE MID  
30S. HIGHS AROUND 60. WINDS GENERALLY LESS THAN 10 MPH.    
TUESDAY
 
PARTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS. LOWS IN THE UPPER 30S. HIGHS IN THE MID 60S.    
WEDNESDAY
 
MOSTLY SUNNY. SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE UPPER 60S.  
 

 
 
WYZ416-201200-  
WEST WIND RIVER MOUNTAINS/EAST ZONE BRIDGER TETON NF-  
346 AM MDT THU JUN 19 2025  
   
TODAY
 
 
SKY/WEATHER.........MOSTLY SUNNY.  
CHANCE OF THUNDER...0 PERCENT.  
MAX TEMPERATURE.....74-79.  
24 HR TREND......8 DEGREES WARMER.  
MIN HUMIDITY........14-20 PERCENT.  
24 HR TREND......5 PERCENT DRIER.  
20-FOOT WINDS.......SOUTH WINDS 10 TO 15 MPH WITH GUSTS TO AROUND  
35 MPH UNTIL 1500, THEN SOUTHWEST AROUND 20 MPH  
WITH GUSTS TO AROUND 35 MPH.  
RIDGE TOP WINDS.....SOUTH AROUND 15 MPH UNTIL 1200, THEN SOUTHWEST  
AROUND 25 MPH.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTH AROUND 15 MPH UNTIL 1200, THEN SOUTHWEST  
AROUND 30 MPH.  
MIXING HEIGHT.......2200-4200 FT AGL UNTIL 1200, THEN 9800-11800 FT  
AGL.  
SMOKE DISPERSAL.....FAIR TO GOOD UNTIL 1200, THEN EXCELLENT.  
   
TONIGHT
 
 
SKY/WEATHER.........PARTLY CLOUDY. AREAS OF SMOKE LATE IN THE  
EVENING.  
CHANCE OF THUNDER...0 PERCENT.  
MIN TEMPERATURE.....44-49.  
24 HR TREND......1 DEGREE WARMER.  
MAX HUMIDITY........42-48 PERCENT.  
24 HR TREND......17 PERCENT DRIER.  
HUMIDITY RECOVERY...MODERATE.  
20-FOOT WINDS.......SOUTHWEST WINDS AROUND 15 MPH UNTIL 2100, THEN  
DOWNSLOPE/DOWNVALLEY 4-7 MPH UNTIL 2400, THEN  
SOUTH AROUND 10 MPH. GUSTS UP TO 35 MPH.  
RIDGE TOP WINDS.....SOUTH AROUND 15 MPH.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTHWEST 15 TO 20 MPH.  
MIXING HEIGHT.......5200-7200 FT AGL UNTIL 2400, THEN 400-1000 FT  
AGL.  
SMOKE DISPERSAL.....VERY GOOD TO EXCELLENT UNTIL 2400, THEN POOR.  
   
FRIDAY
 
 
SKY/WEATHER.........MOSTLY SUNNY. SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS EARLY IN THE AFTERNOON. CHANCE OF  
PRECIPITATION 20 PERCENT.  
CHANCE OF THUNDER...10 PERCENT.  
MAX TEMPERATURE.....69-74.  
24 HR TREND......4 DEGREES COOLER.  
MIN HUMIDITY........17-23 PERCENT.  
24 HR TREND......3 PERCENT WETTER.  
20-FOOT WINDS.......BREEZY. SOUTH WINDS 10 TO 15 MPH UNTIL 1200,  
THEN SOUTHWEST AROUND 25 MPH. GUSTS UP TO 40  
MPH.  
RIDGE TOP WINDS.....SOUTH AROUND 15 MPH UNTIL 1200, THEN SOUTHWEST  
AROUND 30 MPH.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTHWEST AROUND 20 MPH UNTIL 1200, THEN AROUND  
35 MPH.  
MIXING HEIGHT.......3200-5200 FT AGL UNTIL 1200, THEN 9800-11000 FT  
AGL.  
SMOKE DISPERSAL.....VERY GOOD UNTIL 1200, THEN EXCELLENT.  
 
   
FORECAST DAYS 3 THROUGH 7...
 
   
FRIDAY NIGHT
 
MOSTLY CLEAR. LOWS IN THE LOWER 40S. SOUTHWEST  
WINDS AROUND 15 MPH.    
SATURDAY
 
COOLER. PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND  
SNOW SHOWERS. LOWS IN THE LOWER 30S. HIGHS IN THE LOWER 60S. WEST  
WINDS AROUND 15 MPH.    
SUNDAY
 
MOSTLY CLEAR WITH CHANCE OF SNOW SHOWERS AND SLIGHT  
CHANCE OF SHOWERS. LOWS IN THE UPPER 20S. HIGHS IN THE LOWER 50S.  
WEST WINDS AROUND 10 MPH.    
MONDAY
 
PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS. LOWS IN THE  
MID 30S. HIGHS IN THE UPPER 50S. WINDS GENERALLY LESS THAN  
10 MPH.    
TUESDAY
 
PARTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS. LOWS IN THE UPPER 30S. HIGHS IN THE LOWER 60S.    
WEDNESDAY
 
PARTLY CLOUDY. CHANCE OF SHOWERS AND SLIGHT CHANCE  
OF THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE MID 60S.  
 

 
 
WYZ288-201200-  
EAST WIND RIVER MOUNTAINS/SOUTH SHOSHONE NF-  
INCLUDING THE CITIES OF DUBOIS AND SOUTH PASS  
346 AM MDT THU JUN 19 2025  
   
TODAY
 
 
SKY/WEATHER.........MOSTLY SUNNY.  
CHANCE OF THUNDER...0 PERCENT.  
MAX TEMPERATURE.....77-82.  
24 HR TREND......8 DEGREES WARMER.  
MIN HUMIDITY........14-20 PERCENT.  
24 HR TREND......5 PERCENT DRIER.  
20-FOOT WINDS.......SOUTHWEST WINDS 15 TO 20 MPH. GUSTS UP TO 30  
MPH UNTIL 1200, THEN 40 MPH.  
RIDGE TOP WINDS.....SOUTHWEST 20 TO 25 MPH.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTHWEST AROUND 20 MPH UNTIL 1200, THEN AROUND  
30 MPH.  
MIXING HEIGHT.......2600-4600 FT AGL UNTIL 1200, THEN 10600-12600  
FT AGL.  
SMOKE DISPERSAL.....FAIR TO GOOD UNTIL 1200, THEN EXCELLENT.  
   
TONIGHT
 
 
SKY/WEATHER.........PARTLY CLOUDY.  
CHANCE OF THUNDER...0 PERCENT.  
MIN TEMPERATURE.....50-55.  
24 HR TREND......1 DEGREE WARMER.  
MAX HUMIDITY........35-41 PERCENT.  
24 HR TREND......14 PERCENT DRIER.  
HUMIDITY RECOVERY...POOR.  
20-FOOT WINDS.......SOUTHWEST WINDS AROUND 20 MPH UNTIL 2100, THEN  
10 TO 15 MPH. GUSTS UP TO 40 MPH.  
RIDGE TOP WINDS.....SOUTHWEST AROUND 20 MPH.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTHWEST AROUND 20 MPH.  
MIXING HEIGHT.......5800-7800 FT AGL UNTIL 2400, THEN 400-800 FT  
AGL.  
SMOKE DISPERSAL.....EXCELLENT UNTIL 2400, THEN POOR.  
   
FRIDAY
 
 
SKY/WEATHER.........MOSTLY SUNNY.  
CHANCE OF THUNDER...0 PERCENT.  
MAX TEMPERATURE.....74-79.  
24 HR TREND......4 DEGREES COOLER.  
MIN HUMIDITY........16-22 PERCENT.  
24 HR TREND......2 PERCENT WETTER.  
20-FOOT WINDS.......WINDY. SOUTHWEST WINDS 20 TO 25 MPH WITH GUSTS  
TO AROUND 50 MPH UNTIL 1500, THEN AROUND 30 MPH  
WITH GUSTS TO AROUND 50 MPH.  
RIDGE TOP WINDS.....SOUTHWEST AROUND 25 MPH UNTIL 1200, THEN AROUND  
35 MPH.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTHWEST 35 TO 40 MPH.  
MIXING HEIGHT.......3600-5600 FT AGL UNTIL 1200, THEN 9200-11200 FT  
AGL.  
SMOKE DISPERSAL.....VERY GOOD TO EXCELLENT UNTIL 1200, THEN  
EXCELLENT.  
 
   
FORECAST DAYS 3 THROUGH 7...
 
   
FRIDAY NIGHT
 
MOSTLY CLEAR. LOWS IN THE UPPER 40S. SOUTHWEST  
WINDS AROUND 20 MPH.    
SATURDAY
 
MOSTLY CLEAR. CHANCE OF SHOWERS, SNOW SHOWERS AND  
SLIGHT CHANCE OF THUNDERSTORMS. LOWS IN THE UPPER 30S. HIGHS IN  
THE UPPER 60S. WEST WINDS AROUND 15 MPH.    
SUNDAY
 
COOLER. PARTLY CLOUDY WITH CHANCE OF SNOW SHOWERS,  
SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS. LOWS IN THE MID 30S.  
HIGHS IN THE MID 50S. WEST WINDS AROUND 15 MPH.    
MONDAY
 
PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS. LOWS AROUND 40. HIGHS IN THE LOWER 60S. SOUTHWEST  
WINDS AROUND 10 MPH.    
TUESDAY
 
PARTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS. LOWS IN THE LOWER 40S. HIGHS IN THE MID 60S.    
WEDNESDAY
 
PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS IN THE  
MORNING, THEN CHANCE OF SHOWERS AND SLIGHT CHANCE OF  
THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE MID 60S.  
 

 
 
WYZ414-201200-  
SALT AND WYOMING RANGES/WEST ZONE BRIDGER TETON NF-  
INCLUDING THE CITY OF AFTON  
346 AM MDT THU JUN 19 2025  
   
TODAY
 
 
SKY/WEATHER.........MOSTLY SUNNY.  
CHANCE OF THUNDER...0 PERCENT.  
MAX TEMPERATURE.....77-82.  
24 HR TREND......8 DEGREES WARMER.  
MIN HUMIDITY........13-19 PERCENT.  
24 HR TREND......8 PERCENT DRIER.  
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH UNTIL 0900, THEN  
SOUTHWEST 10 TO 15 MPH WITH GUSTS TO AROUND 35  
MPH UNTIL 1500, THEN AROUND 20 MPH WITH GUSTS  
TO AROUND 35 MPH.  
RIDGE TOP WINDS.....SOUTHWEST 15 TO 20 MPH.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTH AROUND 15 MPH UNTIL 1200, THEN SOUTHWEST  
AROUND 25 MPH.  
MIXING HEIGHT.......2600-4600 FT AGL UNTIL 1200, THEN 10200-12200  
FT AGL.  
SMOKE DISPERSAL.....FAIR TO GOOD UNTIL 1200, THEN EXCELLENT.  
   
TONIGHT
 
 
SKY/WEATHER.........MOSTLY CLEAR.  
CHANCE OF THUNDER...0 PERCENT.  
MIN TEMPERATURE.....44-49.  
24 HR TREND......2 DEGREES WARMER.  
MAX HUMIDITY........43-49 PERCENT.  
24 HR TREND......13 PERCENT DRIER.  
HUMIDITY RECOVERY...MODERATE.  
20-FOOT WINDS.......SOUTH WINDS 10 TO 15 MPH. GUSTS UP TO 30 MPH  
UNTIL 2400, THEN 40 MPH.  
RIDGE TOP WINDS.....SOUTH 15 TO 20 MPH.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTHWEST 20 TO 25 MPH.  
MIXING HEIGHT.......5400-7400 FT AGL UNTIL 2400, THEN 400-1000 FT  
AGL.  
SMOKE DISPERSAL.....VERY GOOD TO EXCELLENT UNTIL 2400, THEN POOR.  
   
FRIDAY
 
 
SKY/WEATHER.........MOSTLY SUNNY.  
CHANCE OF THUNDER...0 PERCENT.  
MAX TEMPERATURE.....70-75.  
24 HR TREND......6 DEGREES COOLER.  
MIN HUMIDITY........18-24 PERCENT.  
24 HR TREND......4 PERCENT WETTER.  
20-FOOT WINDS.......SOUTHWEST WINDS AROUND 10 MPH WITH GUSTS TO  
AROUND 30 MPH UNTIL 1200, THEN AROUND 20 MPH  
WITH GUSTS TO AROUND 40 MPH.  
RIDGE TOP WINDS.....SOUTHWEST AROUND 15 MPH UNTIL 1200, THEN AROUND  
25 MPH.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTHWEST AROUND 20 MPH UNTIL 1200, THEN AROUND  
35 MPH.  
MIXING HEIGHT.......3000-5000 FT AGL UNTIL 1200, THEN 9000-10400 FT  
AGL.  
SMOKE DISPERSAL.....GOOD UNTIL 1200, THEN EXCELLENT.  
 
   
FORECAST DAYS 3 THROUGH 7...
 
   
FRIDAY NIGHT
 
MOSTLY CLEAR. LOWS AROUND 40. WEST WINDS AROUND  
15 MPH.    
SATURDAY
 
COOLER. MOSTLY CLEAR. LOWS IN THE LOWER 30S. HIGHS IN  
THE LOWER 60S. WEST WINDS AROUND 15 MPH.    
SUNDAY
 
MOSTLY CLEAR. SLIGHT CHANCE OF SHOWERS AND SNOW  
SHOWERS. LOWS IN THE LOWER 30S. HIGHS IN THE MID 50S. WEST WINDS  
AROUND 10 MPH.    
MONDAY
 
MOSTLY CLEAR. LOWS IN THE UPPER 30S. HIGHS IN THE LOWER  
60S. WINDS GENERALLY LESS THAN 10 MPH.    
TUESDAY
 
PARTLY CLOUDY. LOWS IN THE LOWER 40S. HIGHS IN THE MID  
60S.    
WEDNESDAY
 
MOSTLY SUNNY. SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE UPPER 60S.  
 

 
 
WYZ278-201200-  
UPPER GREEN RIVER BASIN/ROCK SPRINGS BLM-  
INCLUDING THE CITIES OF BIG PINEY, FARSON, AND PINEDALE  
346 AM MDT THU JUN 19 2025  
   
TODAY
 
 
SKY/WEATHER.........MOSTLY SUNNY. AREAS OF SMOKE EARLY IN THE  
MORNING.  
CHANCE OF THUNDER...0 PERCENT.  
MAX TEMPERATURE.....79-84.  
24 HR TREND......8 DEGREES WARMER.  
MIN HUMIDITY........10-16 PERCENT.  
24 HR TREND......6 PERCENT DRIER.  
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH UNTIL 0900, THEN SOUTH  
AROUND 10 MPH WITH HIGHER GUSTS UNTIL 1200,  
THEN SOUTHWEST 15 TO 20 MPH WITH GUSTS TO  
AROUND 35 MPH.  
RIDGE TOP WINDS.....SOUTHEAST AROUND 10 MPH UNTIL 1200, THEN  
SOUTHWEST AROUND 25 MPH.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTHEAST AROUND 10 MPH UNTIL 1200, THEN  
SOUTHWEST AROUND 30 MPH.  
MIXING HEIGHT.......2000-4000 FT AGL UNTIL 1200, THEN 11400-13400  
FT AGL.  
SMOKE DISPERSAL.....POOR TO FAIR UNTIL 1200, THEN EXCELLENT.  
   
TONIGHT
 
 
SKY/WEATHER.........PARTLY CLOUDY.  
CHANCE OF THUNDER...0 PERCENT.  
MIN TEMPERATURE.....47-52.  
24 HR TREND......3 DEGREES WARMER.  
MAX HUMIDITY........39-45 PERCENT.  
24 HR TREND......22 PERCENT DRIER.  
HUMIDITY RECOVERY...MODERATE.  
20-FOOT WINDS.......SOUTHWEST WINDS AROUND 15 MPH UNTIL 2100, THEN  
DOWNSLOPE/DOWNVALLEY 4-7 MPH UNTIL 2400, THEN  
SOUTH AROUND 10 MPH. GUSTS UP TO 40 MPH.  
RIDGE TOP WINDS.....SOUTHWEST AROUND 15 MPH.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTHWEST AROUND 20 MPH.  
MIXING HEIGHT.......6800-8800 FT AGL UNTIL 2400, THEN 600-800 FT  
AGL.  
SMOKE DISPERSAL.....EXCELLENT UNTIL 2400, THEN POOR.  
   
FRIDAY
 
 
SKY/WEATHER.........MOSTLY SUNNY.  
CHANCE OF THUNDER...0 PERCENT.  
MAX TEMPERATURE.....74-79.  
24 HR TREND......5 DEGREES COOLER.  
MIN HUMIDITY........13-19 PERCENT.  
24 HR TREND......3 PERCENT WETTER.  
20-FOOT WINDS.......WINDY. SOUTHWEST WINDS 15 TO 20 MPH UNTIL 1200,  
THEN 25 TO 30 MPH. GUSTS UP TO 40 MPH.  
RIDGE TOP WINDS.....SOUTHWEST AROUND 20 MPH UNTIL 1200, THEN AROUND  
35 MPH.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTHWEST AROUND 25 MPH UNTIL 1200, THEN AROUND  
35 MPH.  
MIXING HEIGHT.......4200-6200 FT AGL UNTIL 1200, THEN 11400-12800  
FT AGL.  
SMOKE DISPERSAL.....VERY GOOD TO EXCELLENT UNTIL 1200, THEN  
EXCELLENT.  
 
   
FORECAST DAYS 3 THROUGH 7...
 
   
FRIDAY NIGHT
 
CLEAR. LOWS IN THE MID 40S. SOUTHWEST WINDS  
AROUND 15 MPH.    
SATURDAY
 
MOSTLY CLEAR. LOWS IN THE MID 30S. HIGHS IN THE LOWER  
70S. WEST WINDS AROUND 15 MPH.    
SUNDAY
 
COOLER. MOSTLY CLEAR. SLIGHT CHANCE OF SHOWERS. LOWS IN  
THE LOWER 30S. HIGHS IN THE LOWER 60S. NORTHWEST WINDS AROUND  
10 MPH.    
MONDAY
 
MOSTLY CLEAR. LOWS AROUND 40. HIGHS IN THE UPPER 60S.  
NORTHWEST WINDS AROUND 10 MPH.    
TUESDAY
 
PARTLY CLOUDY. LOWS IN THE LOWER 40S. HIGHS IN THE  
LOWER 70S.    
WEDNESDAY
 
MOSTLY SUNNY. SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE MID 70S.  
 

 
 
WYZ277-201200-  
LINCOLN AND UINTA COUNTIES/LOWER ELEVATIONS-  
INCLUDING THE CITIES OF EVANSTON, FORT BRIDGER, AND KEMMERER  
346 AM MDT THU JUN 19 2025  
   
TODAY
 
 
SKY/WEATHER.........SUNNY.  
CHANCE OF THUNDER...0 PERCENT.  
MAX TEMPERATURE.....79-84.  
24 HR TREND......8 DEGREES WARMER.  
MIN HUMIDITY........9-15 PERCENT.  
24 HR TREND......8 PERCENT DRIER.  
20-FOOT WINDS.......BREEZY. UPSLOPE/UPVALLEY 5-9 MPH UNTIL 0900,  
THEN SOUTH AROUND 10 MPH WITH HIGHER GUSTS  
UNTIL 1200, THEN SOUTHWEST 20 TO 25 MPH WITH  
GUSTS TO AROUND 35 MPH.  
RIDGE TOP WINDS.....SOUTHEAST AROUND 10 MPH UNTIL 1200, THEN  
SOUTHWEST AROUND 25 MPH.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTHEAST AROUND 15 MPH UNTIL 1200, THEN  
SOUTHWEST AROUND 30 MPH.  
MIXING HEIGHT.......2000-4000 FT AGL UNTIL 1200, THEN 11200-13200  
FT AGL.  
SMOKE DISPERSAL.....FAIR TO GOOD UNTIL 1200, THEN EXCELLENT.  
   
TONIGHT
 
 
SKY/WEATHER.........MOSTLY CLEAR.  
CHANCE OF THUNDER...0 PERCENT.  
MIN TEMPERATURE.....50-55.  
24 HR TREND......4 DEGREES WARMER.  
MAX HUMIDITY........36-42 PERCENT.  
24 HR TREND......20 PERCENT DRIER.  
HUMIDITY RECOVERY...POOR.  
20-FOOT WINDS.......SOUTHWEST WINDS 10 TO 15 MPH WITH GUSTS TO  
AROUND 40 MPH.  
RIDGE TOP WINDS.....SOUTHWEST 15 TO 20 MPH.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTHWEST 20 TO 25 MPH.  
MIXING HEIGHT.......6400-8400 FT AGL UNTIL 2400, THEN 600-800 FT  
AGL.  
SMOKE DISPERSAL.....EXCELLENT UNTIL 2400, THEN POOR.  
   
FRIDAY
 
 
SKY/WEATHER.........SUNNY.  
CHANCE OF THUNDER...0 PERCENT.  
MAX TEMPERATURE.....75-80.  
24 HR TREND......6 DEGREES COOLER.  
MIN HUMIDITY........13-19 PERCENT.  
24 HR TREND......4 PERCENT WETTER.  
20-FOOT WINDS.......WINDY. SOUTHWEST WINDS 15 TO 20 MPH UNTIL 1200,  
THEN 25 TO 30 MPH. GUSTS UP TO 40 MPH.  
RIDGE TOP WINDS.....SOUTHWEST AROUND 25 MPH UNTIL 1200, THEN AROUND  
35 MPH.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTHWEST AROUND 30 MPH UNTIL 1200, THEN AROUND  
40 MPH.  
MIXING HEIGHT.......3600-5600 FT AGL UNTIL 1200, THEN 10000-11600  
FT AGL.  
SMOKE DISPERSAL.....VERY GOOD UNTIL 1200, THEN EXCELLENT.  
 
   
FORECAST DAYS 3 THROUGH 7...
 
   
FRIDAY NIGHT
 
CLEAR. LOWS IN THE MID 40S. SOUTHWEST WINDS  
AROUND 15 MPH.    
SATURDAY
 
MOSTLY CLEAR. LOWS IN THE LOWER 30S. HIGHS IN THE  
LOWER 70S. WEST WINDS AROUND 15 MPH.    
SUNDAY
 
MOSTLY CLEAR. LOWS IN THE LOWER 30S. HIGHS IN THE LOWER  
60S. NORTHWEST WINDS AROUND 10 MPH.    
MONDAY
 
MOSTLY CLEAR. LOWS AROUND 40. HIGHS IN THE UPPER 60S.  
WINDS GENERALLY LESS THAN 10 MPH.    
TUESDAY
 
PARTLY CLOUDY. LOWS IN THE LOWER 40S. HIGHS IN THE  
LOWER 70S.    
WEDNESDAY
 
MOSTLY SUNNY. HIGHS IN THE MID 70S.  
 

 
 
WYZ279-201200-  
SWEETWATER COUNTY/ROCK SPRINGS BLM/FLAMING GORGE NRA-  
INCLUDING THE CITIES OF GREEN RIVER, ROCK SPRINGS, AND WAMSUTTER  
346 AM MDT THU JUN 19 2025  
   
TODAY
 
 
SKY/WEATHER.........MOSTLY SUNNY.  
CHANCE OF THUNDER...0 PERCENT.  
MAX TEMPERATURE.....82-87.  
24 HR TREND......7 DEGREES WARMER.  
MIN HUMIDITY........8-14 PERCENT.  
24 HR TREND......4 PERCENT DRIER.  
20-FOOT WINDS.......BREEZY. UPSLOPE/UPVALLEY 5-9 MPH UNTIL 0900,  
THEN SOUTHWEST 15 TO 20 MPH UNTIL 1500, THEN  
AROUND 25 MPH. GUSTS UP TO 30 MPH.  
RIDGE TOP WINDS.....SOUTH AROUND 15 MPH UNTIL 1200, THEN SOUTHWEST  
AROUND 25 MPH.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTH AROUND 15 MPH UNTIL 1200, THEN SOUTHWEST  
AROUND 30 MPH.  
MIXING HEIGHT.......4400-6400 FT AGL UNTIL 1200, THEN 13400-15400  
FT AGL.  
SMOKE DISPERSAL.....GOOD TO VERY GOOD UNTIL 1200, THEN EXCELLENT.  
   
TONIGHT
 
 
SKY/WEATHER.........PARTLY CLOUDY.  
CHANCE OF THUNDER...0 PERCENT.  
MIN TEMPERATURE.....54-59.  
24 HR TREND......3 DEGREES WARMER.  
MAX HUMIDITY........25-31 PERCENT.  
24 HR TREND......14 PERCENT DRIER.  
HUMIDITY RECOVERY...POOR.  
20-FOOT WINDS.......SOUTHWEST WINDS AROUND 20 MPH UNTIL 2100, THEN  
AROUND 10 MPH. GUSTS UP TO 30 MPH.  
RIDGE TOP WINDS.....SOUTHWEST 15 TO 20 MPH.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTHWEST AROUND 20 MPH.  
MIXING HEIGHT.......7000-9000 FT AGL UNTIL 2400, THEN 400-800 FT  
AGL.  
SMOKE DISPERSAL.....EXCELLENT UNTIL 2400, THEN POOR.  
   
FRIDAY
 
 
SKY/WEATHER.........SUNNY.  
CHANCE OF THUNDER...0 PERCENT.  
MAX TEMPERATURE.....79-84.  
24 HR TREND......3 DEGREES COOLER.  
MIN HUMIDITY........8-14 PERCENT.  
24 HR TREND......UNCHANGED.  
20-FOOT WINDS.......WINDY. SOUTH WINDS AROUND 15 MPH UNTIL 0900,  
THEN SOUTHWEST 25 TO 30 MPH. GUSTS UP TO 45  
MPH.  
RIDGE TOP WINDS.....SOUTHWEST AROUND 25 MPH UNTIL 1200, THEN AROUND  
35 MPH.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTHWEST AROUND 30 MPH UNTIL 1200, THEN AROUND  
40 MPH.  
MIXING HEIGHT.......4400-6400 FT AGL UNTIL 1200, THEN 11600-13600  
FT AGL.  
SMOKE DISPERSAL.....EXCELLENT.  
 
   
FORECAST DAYS 3 THROUGH 7...
 
   
FRIDAY NIGHT
 
CLEAR. LOWS IN THE LOWER 50S. SOUTHWEST WINDS  
AROUND 20 MPH.    
SATURDAY
 
CLEAR. LOWS IN THE LOWER 40S. HIGHS IN THE LOWER 80S.  
SOUTHWEST WINDS AROUND 20 MPH.    
SUNDAY THROUGH MONDAY
 
MOSTLY CLEAR. LOWS 40 TO 45. HIGHS 70 TO  
75. NORTHWEST WINDS 10 TO 15 MPH.    
TUESDAY
 
MOSTLY CLEAR. LOWS IN THE UPPER 40S. HIGHS IN THE  
UPPER 70S.    
WEDNESDAY
 
MOSTLY SUNNY. SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE UPPER 70S.  
 

 
 
WYZ289-201200-  
GRANITE/GREEN/FERRIS/RATTLESNAKE MOUNTAINS-  
INCLUDING THE CITY OF JEFFREY CITY  
346 AM MDT THU JUN 19 2025  
   
TODAY
 
 
SKY/WEATHER.........SUNNY THEN BECOMING PARTLY CLOUDY. AREAS OF  
SMOKE EARLY IN THE MORNING.  
CHANCE OF THUNDER...0 PERCENT.  
MAX TEMPERATURE.....83-88.  
24 HR TREND......8 DEGREES WARMER.  
MIN HUMIDITY........7-13 PERCENT.  
24 HR TREND......4 PERCENT DRIER.  
20-FOOT WINDS.......SOUTH WINDS AROUND 10 MPH UNTIL 1200, THEN  
SOUTHWEST AROUND 20 MPH. GUSTS UP TO 30 MPH.  
RIDGE TOP WINDS.....SOUTH AROUND 15 MPH UNTIL 1200, THEN SOUTHWEST  
AROUND 25 MPH.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTHWEST AROUND 15 MPH UNTIL 1200, THEN AROUND  
30 MPH.  
MIXING HEIGHT.......2800-4800 FT AGL UNTIL 1200, THEN 12800-14800  
FT AGL.  
SMOKE DISPERSAL.....FAIR TO GOOD UNTIL 1200, THEN EXCELLENT.  
   
TONIGHT
 
 
SKY/WEATHER.........PARTLY CLOUDY.  
CHANCE OF THUNDER...0 PERCENT.  
MIN TEMPERATURE.....56-61.  
24 HR TREND......4 DEGREES WARMER.  
MAX HUMIDITY........33-39 PERCENT.  
24 HR TREND......18 PERCENT DRIER.  
HUMIDITY RECOVERY...POOR.  
20-FOOT WINDS.......SOUTHWEST WINDS 10 TO 15 MPH WITH GUSTS TO  
AROUND 30 MPH.  
RIDGE TOP WINDS.....SOUTHWEST AROUND 15 MPH.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTHWEST AROUND 20 MPH.  
MIXING HEIGHT.......7000-9000 FT AGL UNTIL 2400, THEN 400-600 FT  
AGL.  
SMOKE DISPERSAL.....EXCELLENT UNTIL 2400, THEN POOR.  
   
FRIDAY
 
 
SKY/WEATHER.........MOSTLY SUNNY.  
CHANCE OF THUNDER...0 PERCENT.  
MAX TEMPERATURE.....81-86.  
24 HR TREND......3 DEGREES COOLER.  
MIN HUMIDITY........6-12 PERCENT.  
24 HR TREND......1 PERCENT DRIER.  
20-FOOT WINDS.......WINDY. SOUTHWEST WINDS AROUND 20 MPH UNTIL  
0900, THEN AROUND 30 MPH. GUSTS UP TO 45 MPH.  
RIDGE TOP WINDS.....SOUTHWEST 30 TO 35 MPH.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTHWEST AROUND 30 MPH UNTIL 1200, THEN AROUND  
40 MPH.  
MIXING HEIGHT.......4200-6200 FT AGL UNTIL 1200, THEN 11800-13800  
FT AGL.  
SMOKE DISPERSAL.....EXCELLENT.  
 
   
FORECAST DAYS 3 THROUGH 7...
 
   
FRIDAY NIGHT
 
CLEAR. LOWS IN THE MID 50S. SOUTHWEST WINDS  
AROUND 20 MPH.    
SATURDAY
 
MOSTLY CLEAR. LOWS IN THE MID 40S. HIGHS IN THE LOWER  
80S. WEST WINDS AROUND 20 MPH.    
SUNDAY
 
COOLER. PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS. LOWS  
IN THE LOWER 40S. HIGHS IN THE UPPER 60S. NORTHWEST WINDS AROUND  
15 MPH.    
MONDAY
 
PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS. LOWS IN THE MID 40S. HIGHS IN THE LOWER 70S. NORTH  
WINDS AROUND 10 MPH.    
TUESDAY
 
PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS. LOWS IN THE UPPER 40S. HIGHS IN THE MID 70S.    
WEDNESDAY
 
PARTLY CLOUDY. CHANCE OF SHOWERS AND THUNDERSTORMS  
IN THE AFTERNOON. HIGHS IN THE MID 70S.  
 

 
 
WYZ300-201200-  
CASPER MOUNTAIN-  
346 AM MDT THU JUN 19 2025  
   
TODAY
 
 
SKY/WEATHER.........MOSTLY SUNNY.  
CHANCE OF THUNDER...0 PERCENT.  
MAX TEMPERATURE.....82-87.  
24 HR TREND......9 DEGREES WARMER.  
MIN HUMIDITY........9-15 PERCENT.  
24 HR TREND......3 PERCENT DRIER.  
20-FOOT WINDS.......SOUTHWEST WINDS 10 TO 15 MPH WITH GUSTS TO  
AROUND 35 MPH UNTIL 1500, THEN AROUND 20 MPH  
WITH GUSTS TO AROUND 35 MPH.  
RIDGE TOP WINDS.....SOUTHWEST 15 TO 20 MPH.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTHWEST AROUND 15 MPH UNTIL 1200, THEN WEST  
AROUND 25 MPH.  
MIXING HEIGHT.......2800-4800 FT AGL UNTIL 1200, THEN 11200-13200  
FT AGL.  
SMOKE DISPERSAL.....FAIR TO GOOD UNTIL 1200, THEN EXCELLENT.  
   
TONIGHT
 
 
SKY/WEATHER.........PARTLY CLOUDY.  
CHANCE OF THUNDER...0 PERCENT.  
MIN TEMPERATURE.....57-62.  
24 HR TREND......5 DEGREES WARMER.  
MAX HUMIDITY........39-45 PERCENT.  
24 HR TREND......15 PERCENT DRIER.  
HUMIDITY RECOVERY...MODERATE.  
20-FOOT WINDS.......SOUTHWEST WINDS 10 TO 15 MPH UNTIL 2400, THEN  
SOUTH. GUSTS UP TO 30 MPH.  
RIDGE TOP WINDS.....SOUTH 15 TO 20 MPH.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTHWEST AROUND 20 MPH.  
MIXING HEIGHT.......4000-6000 FT AGL UNTIL 2400, THEN 200-600 FT  
AGL.  
SMOKE DISPERSAL.....GOOD TO VERY GOOD UNTIL 2400, THEN POOR.  
   
FRIDAY
 
 
SKY/WEATHER.........SUNNY.  
CHANCE OF THUNDER...0 PERCENT.  
MAX TEMPERATURE.....81-86.  
24 HR TREND......1 DEGREE COOLER.  
MIN HUMIDITY........5-11 PERCENT.  
24 HR TREND......4 PERCENT DRIER.  
20-FOOT WINDS.......WINDY. SOUTHWEST WINDS AROUND 20 MPH UNTIL  
0900, THEN 30 TO 35 MPH. GUSTS UP TO 55 MPH.  
RIDGE TOP WINDS.....SOUTHWEST AROUND 30 MPH UNTIL 1200, THEN AROUND  
40 MPH.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTHWEST AROUND 30 MPH UNTIL 1200, THEN AROUND  
50 MPH.  
MIXING HEIGHT.......3600-5600 FT AGL UNTIL 1200, THEN 10600-12600  
FT AGL.  
SMOKE DISPERSAL.....EXCELLENT.  
 
   
FORECAST DAYS 3 THROUGH 7...
 
   
FRIDAY NIGHT
 
CLEAR. LOWS IN THE UPPER 50S. SOUTHWEST WINDS  
AROUND 15 MPH.    
SATURDAY
 
MOSTLY CLEAR. LOWS IN THE UPPER 40S. HIGHS IN THE  
LOWER 80S. SOUTHWEST WINDS AROUND 15 MPH.    
SUNDAY
 
COOLER. PARTLY CLOUDY. CHANCE OF SHOWERS AND SLIGHT  
CHANCE OF THUNDERSTORMS. LOWS IN THE LOWER 40S. HIGHS IN THE  
UPPER 60S. NORTHWEST WINDS AROUND 10 MPH.    
MONDAY
 
PARTLY CLOUDY WITH CHANCE OF SHOWERS AND THUNDERSTORMS.  
LOWS IN THE MID 40S. HIGHS IN THE MID 60S. SOUTHEAST WINDS AROUND  
10 MPH.    
TUESDAY
 
PARTLY CLOUDY WITH CHANCE OF SHOWERS AND SLIGHT CHANCE  
OF THUNDERSTORMS. LOWS IN THE UPPER 40S. HIGHS AROUND 70.    
WEDNESDAY
 
PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS IN THE  
MORNING, THEN SHOWERS LIKELY AND CHANCE OF THUNDERSTORMS IN THE  
AFTERNOON. HIGHS AROUND 70.  
 

 
 
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