894
FNUS55 KRIW 141007
FWFRIW
FIRE WEATHER PLANNING FORECAST FOR WESTERN AND CENTRAL WYOMING
NATIONAL WEATHER SERVICE RIVERTON WY
407 AM MDT SUN SEP 14 2025
DISCUSSION
...YELLOWSTONE NP AND TETON DISPATCH AREAS (INCLUDES FIRE WEATHER
ZONES 140...414...415...AND 416)...
WARM AND DRY CONDITIONS ARE EXPECTED MOST OF TODAY, WITH HUMIDITY
LEVELS FALLING TO AROUND 30 PERCENT IN THE AFTERNOON. WEST WINDS
REMAIN LIGHT, WITH ONLY A FEW HIGHER GUSTS ABOVE 20 MPH MAINLY
ABOVE 9000 FEET. SHOWERS AND THUNDERSTORMS WILL RETURN TO THE
FORECAST TONIGHT AND CONTINUE INTO THE DAY MONDAY.
..CODY DISPATCH AREA (INCLUDES FIRE WEATHER ZONES 275...276
282...283...285...286...287...288...AND 289)...
WARM AND DRY CONDITIONS ARE EXPECTED MOST OF TODAY, WITH HUMIDITY
LEVELS FALLING TO 20 TO 30 PERCENT IN THE AFTERNOON. WEST WINDS
REMAIN LIGHT, WITH ONLY A FEW HIGHER GUSTS ABOVE 20 MPH MAINLY
ABOVE 9000 FEET. SHOWERS AND THUNDERSTORMS WILL RETURN TO THE
FORECAST TONIGHT AND CONTINUE INTO THE DAY MONDAY.
..CASPER DISPATCH AREA (INCLUDES FIRE WEATHER ZONES 277...278
279...280...281...285...289...AND 300)...
LIGHT SHOWERS WILL BE BRIEF THIS MORNING MAINLY FOR NATRONA
COUNTY. SKIES WILL BE MOSTLY CLEAR DURING THE AFTERNOON, BRINGING
WARMER AND DRIER CONDITIONS. SHOWERS AND THUNDERSTORMS RETURN TO
THE FORECAST DURING THE DAY MONDAY.
..THUNDERSTORMS IMPLY STRONG GUSTY AND ERRATIC WINDS
WYZ280-151215-
NATRONA COUNTY/CASPER BLM-
INCLUDING THE CITIES OF CASPER AND MIDWEST
407 AM MDT SUN SEP 14 2025
TODAY
SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY SUNNY.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....72-77.
24 HR TREND......2 DEGREES WARMER.
MIN HUMIDITY........19-25 PERCENT.
24 HR TREND......6 PERCENT DRIER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH UNTIL 0900, THEN WEST
10 TO 15 MPH. GUSTS UP TO 25 MPH.
RIDGE TOP WINDS.....WEST AROUND 15 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....WEST AROUND 15 MPH.
MIXING HEIGHT.......1800-3800 FT AGL UNTIL 1200, THEN 7400-9400 FT
AGL.
SMOKE DISPERSAL.....POOR TO FAIR UNTIL 1200, THEN VERY GOOD.
TONIGHT
SKY/WEATHER.........MOSTLY CLEAR.
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....48-53.
24 HR TREND......1 DEGREE WARMER.
MAX HUMIDITY........50-56 PERCENT.
24 HR TREND......21 PERCENT DRIER.
HUMIDITY RECOVERY...MODERATE.
20-FOOT WINDS.......WEST WINDS AROUND 10 MPH WITH GUSTS TO AROUND
25 MPH UNTIL 2100, THEN DOWNSLOPE/DOWNVALLEY
4-7 MPH UNTIL 0300, THEN SOUTHWEST AROUND 10
MPH WITH GUSTS TO AROUND 15 MPH.
RIDGE TOP WINDS.....WEST AROUND 15 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....WEST AROUND 15 MPH.
MIXING HEIGHT.......3600-5600 FT AGL UNTIL 2400, THEN 400-600 FT
AGL.
SMOKE DISPERSAL.....FAIR TO GOOD UNTIL 2400, THEN POOR.
MONDAY
SKY/WEATHER.........PARTLY CLOUDY. ISOLATED SHOWERS IN THE
AFTERNOON. ISOLATED THUNDERSTORMS LATE IN THE
AFTERNOON. CHANCE OF PRECIPITATION 20 PERCENT.
CHANCE OF THUNDER...10 PERCENT.
MAX TEMPERATURE.....72-77.
24 HR TREND......1 DEGREE WARMER.
MIN HUMIDITY........19-25 PERCENT.
24 HR TREND......1 PERCENT WETTER.
20-FOOT WINDS.......SOUTHWEST WINDS 10 TO 15 MPH UNTIL 1200, THEN
WEST AROUND 20 MPH. GUSTS UP TO 35 MPH.
RIDGE TOP WINDS.....SOUTHWEST 20 TO 25 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....SOUTHWEST 20 TO 25 MPH.
MIXING HEIGHT.......1200-3200 FT AGL UNTIL 1200, THEN 6800-8800 FT
AGL.
SMOKE DISPERSAL.....POOR TO FAIR UNTIL 1200, THEN EXCELLENT.
FORECAST DAYS 3 THROUGH 7...
MONDAY NIGHT
PARTLY CLOUDY. ISOLATED SHOWERS AND THUNDERSTORMS
IN THE EVENING, THEN ISOLATED SHOWERS AFTER MIDNIGHT. LOWS IN THE
MID 40S. NORTHWEST WINDS AROUND 10 MPH.
TUESDAY
PARTLY CLOUDY WITH SCATTERED SHOWERS AND ISOLATED
THUNDERSTORMS. LOWS IN THE MID 40S. HIGHS IN THE UPPER 60S. NORTH
WINDS AROUND 10 MPH.
WEDNESDAY
MOSTLY CLEAR. ISOLATED SHOWERS AND THUNDERSTORMS.
LOWS IN THE LOWER 40S. HIGHS AROUND 70. WINDS GENERALLY LESS THAN
10 MPH.
THURSDAY
MOSTLY CLEAR. LOWS IN THE MID 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. ISOLATED SHOWERS IN THE AFTERNOON.
HIGHS IN THE MID 70S.
WYZ283-151215-
UPPER WIND RIVER BASIN/WIND RIVER BASIN-
INCLUDING THE CITIES OF CROWHEART, LANDER, RIVERTON, AND SHOSHONI
407 AM MDT SUN SEP 14 2025
TODAY
SKY/WEATHER.........MOSTLY SUNNY.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....70-75.
24 HR TREND......4 DEGREES WARMER.
MIN HUMIDITY........22-28 PERCENT.
24 HR TREND......9 PERCENT DRIER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH UNTIL 1500, THEN WEST
AROUND 10 MPH. GUSTS UP TO 20 MPH.
RIDGE TOP WINDS.....WEST AROUND 10 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....WEST 10 TO 15 MPH.
MIXING HEIGHT.......1400-3400 FT AGL UNTIL 1200, THEN 6800-8800 FT
AGL.
SMOKE DISPERSAL.....POOR UNTIL 1200, THEN GOOD TO VERY GOOD.
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY. ISOLATED SHOWERS EARLY IN THE
MORNING. CHANCE OF SHOWERS 20 PERCENT.
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....47-52.
24 HR TREND......2 DEGREES WARMER.
MAX HUMIDITY........54-60 PERCENT.
24 HR TREND......17 PERCENT DRIER.
HUMIDITY RECOVERY...MODERATE.
20-FOOT WINDS.......WEST WINDS AROUND 10 MPH AND GUSTY.
RIDGE TOP WINDS.....WEST AROUND 15 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....WEST AROUND 15 MPH.
MIXING HEIGHT.......3600-5600 FT AGL UNTIL 2400, THEN 400-800 FT
AGL.
SMOKE DISPERSAL.....FAIR TO GOOD UNTIL 2400, THEN POOR.
MONDAY
SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY SUNNY.
SCATTERED SHOWERS THROUGH THE DAY. ISOLATED
THUNDERSTORMS IN THE AFTERNOON. CHANCE OF
PRECIPITATION 50 PERCENT.
CHANCE OF THUNDER...20 PERCENT.
MAX TEMPERATURE.....67-72.
24 HR TREND......2 DEGREES COOLER.
MIN HUMIDITY........23-29 PERCENT.
24 HR TREND......1 PERCENT WETTER.
20-FOOT WINDS.......WEST WINDS 10 TO 15 MPH WITH GUSTS TO AROUND 30
MPH.
RIDGE TOP WINDS.....WEST 15 TO 20 MPH.
CHC OF WETTING RAIN.LESS THAN 5 PERCENT.
TRANSPORT WINDS.....WEST 15 TO 20 MPH.
MIXING HEIGHT.......2000-4000 FT AGL UNTIL 1200, THEN 7400-9400 FT
AGL.
SMOKE DISPERSAL.....POOR TO FAIR UNTIL 1200, THEN VERY GOOD TO
EXCELLENT.
FORECAST DAYS 3 THROUGH 7...
MONDAY NIGHT
PARTLY CLOUDY. ISOLATED SHOWERS AND THUNDERSTORMS
IN THE EVENING, THEN ISOLATED SHOWERS AFTER MIDNIGHT. LOWS IN THE
MID 40S. NORTHWEST WINDS AROUND 10 MPH.
TUESDAY
PARTLY CLOUDY WITH ISOLATED SHOWERS AND THUNDERSTORMS.
LOWS IN THE MID 40S. HIGHS IN THE UPPER 60S. WINDS GENERALLY LESS
THAN 10 MPH.
WEDNESDAY THROUGH THURSDAY
MOSTLY CLEAR. LOWS IN THE MID 40S.
HIGHS 70 TO 75. WINDS GENERALLY LESS THAN 10 MPH.
FRIDAY
PARTLY CLOUDY. ISOLATED SHOWERS. LOWS IN THE UPPER 40S.
HIGHS IN THE MID 70S.
SATURDAY
PARTLY CLOUDY. ISOLATED SHOWERS IN THE MORNING, THEN
ISOLATED SHOWERS AND THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE
MID 70S.
WYZ285-151215-
SOUTH BIGHORN MOUNTAINS-
407 AM MDT SUN SEP 14 2025
TODAY
SKY/WEATHER.........MOSTLY SUNNY.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....67-72.
24 HR TREND......4 DEGREES WARMER.
MIN HUMIDITY........23-29 PERCENT.
24 HR TREND......13 PERCENT DRIER.
20-FOOT WINDS.......WEST WINDS AROUND 10 MPH WITH HIGHER GUSTS.
RIDGE TOP WINDS.....WEST 10 TO 15 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....WEST AROUND 15 MPH.
MIXING HEIGHT.......1600-3600 FT AGL UNTIL 1200, THEN 5800-7800 FT
AGL.
SMOKE DISPERSAL.....POOR UNTIL 1200, THEN GOOD.
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY.
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....49-54.
24 HR TREND......3 DEGREES WARMER.
MAX HUMIDITY........44-50 PERCENT.
24 HR TREND......19 PERCENT DRIER.
HUMIDITY RECOVERY...MODERATE.
20-FOOT WINDS.......NORTHWEST WINDS AROUND 10 MPH UNTIL 2100, THEN
DOWNSLOPE/DOWNVALLEY 4-7 MPH UNTIL 2400, THEN
WEST AROUND 10 MPH. GUSTS UP TO 20 MPH.
RIDGE TOP WINDS.....WEST AROUND 15 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....WEST AROUND 15 MPH.
MIXING HEIGHT.......2400-4400 FT AGL UNTIL 2400, THEN 200-600 FT
AGL.
SMOKE DISPERSAL.....POOR.
MONDAY
SKY/WEATHER.........PARTLY CLOUDY. SCATTERED SHOWERS THROUGH THE
DAY. ISOLATED THUNDERSTORMS IN THE AFTERNOON.
CHANCE OF PRECIPITATION 50 PERCENT.
CHANCE OF THUNDER...20 PERCENT.
MAX TEMPERATURE.....64-69.
24 HR TREND......2 DEGREES COOLER.
MIN HUMIDITY........29-35 PERCENT.
24 HR TREND......6 PERCENT WETTER.
20-FOOT WINDS.......WEST WINDS 10 TO 15 MPH WITH GUSTS TO AROUND 25
MPH.
RIDGE TOP WINDS.....WEST 15 TO 20 MPH.
CHC OF WETTING RAIN.ZERO PERCENT UNTIL 1200, THEN 10 PERCENT.
TRANSPORT WINDS.....WEST 15 TO 20 MPH.
MIXING HEIGHT.......1200-3200 FT AGL UNTIL 1200, THEN 5000-7000 FT
AGL.
SMOKE DISPERSAL.....POOR TO FAIR UNTIL 1200, THEN GOOD TO VERY
GOOD.
FORECAST DAYS 3 THROUGH 7...
MONDAY NIGHT
PARTLY CLOUDY. SCATTERED SHOWERS AND ISOLATED
THUNDERSTORMS IN THE EVENING, THEN ISOLATED SHOWERS AFTER
MIDNIGHT. LOWS IN THE MID 40S. NORTHWEST WINDS AROUND 10 MPH.
TUESDAY
PARTLY CLOUDY WITH SCATTERED SHOWERS AND ISOLATED
THUNDERSTORMS. LOWS IN THE MID 40S. HIGHS IN THE UPPER 50S. NORTH
WINDS AROUND 10 MPH.
WEDNESDAY
MOSTLY CLEAR. ISOLATED SHOWERS AND THUNDERSTORMS.
LOWS IN THE MID 40S. HIGHS IN THE LOWER 60S. WINDS GENERALLY LESS
THAN 10 MPH.
THURSDAY
CLEAR. LOWS IN THE MID 40S. HIGHS IN THE MID 60S.
WINDS GENERALLY LESS THAN 10 MPH.
FRIDAY
PARTLY CLOUDY. LOWS IN THE UPPER 40S. HIGHS IN THE
UPPER 60S.
SATURDAY
PARTLY CLOUDY WITH ISOLATED SHOWERS. HIGHS IN THE
UPPER 60S.
WYZ281-151215-
JOHNSON COUNTY/CASPER BLM-
INCLUDING THE CITIES OF BUFFALO AND KAYCEE
407 AM MDT SUN SEP 14 2025
TODAY
SKY/WEATHER.........MOSTLY SUNNY.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....69-74.
24 HR TREND......4 DEGREES WARMER.
MIN HUMIDITY........27-33 PERCENT.
24 HR TREND......11 PERCENT DRIER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH UNTIL 1500, THEN NORTH
AROUND 10 MPH. GUSTS UP TO 15 MPH.
RIDGE TOP WINDS.....SOUTHWEST AROUND 10 MPH UNTIL 1200, THEN NORTH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....WEST AROUND 10 MPH.
MIXING HEIGHT.......1600-3600 FT AGL UNTIL 1200, THEN 7200-9200 FT
AGL.
SMOKE DISPERSAL.....POOR UNTIL 1200, THEN GOOD.
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY.
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....52-57.
24 HR TREND......3 DEGREES WARMER.
MAX HUMIDITY........51-57 PERCENT.
24 HR TREND......29 PERCENT DRIER.
HUMIDITY RECOVERY...MODERATE.
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 4-7 MPH UNTIL 0300, THEN
SOUTHWEST AROUND 10 MPH. GUSTS UP TO 15 MPH.
RIDGE TOP WINDS.....NORTHWEST AROUND 10 MPH UNTIL 2400, THEN
SOUTHWEST.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....NORTHWEST AROUND 10 MPH UNTIL 2400, THEN
SOUTHWEST.
MIXING HEIGHT.......3200-5200 FT AGL UNTIL 2400, THEN 400-600 FT
AGL.
SMOKE DISPERSAL.....POOR TO FAIR UNTIL 2400, THEN POOR.
MONDAY
SKY/WEATHER.........MOSTLY SUNNY THEN BECOMING PARTLY CLOUDY.
ISOLATED SHOWERS EARLY IN THE AFTERNOON.
ISOLATED THUNDERSTORMS IN THE AFTERNOON.
SCATTERED SHOWERS LATE IN THE AFTERNOON. CHANCE
OF PRECIPITATION 50 PERCENT.
CHANCE OF THUNDER...20 PERCENT.
MAX TEMPERATURE.....68-73.
24 HR TREND......3 DEGREES COOLER.
MIN HUMIDITY........28-34 PERCENT.
24 HR TREND......4 PERCENT WETTER.
20-FOOT WINDS.......WEST WINDS 10 TO 15 MPH UNTIL 1500, THEN
NORTHWEST. GUSTS UP TO 25 MPH.
RIDGE TOP WINDS.....WEST 15 TO 20 MPH.
CHC OF WETTING RAIN.ZERO PERCENT UNTIL 1200, THEN 15 PERCENT.
TRANSPORT WINDS.....WEST 15 TO 20 MPH.
MIXING HEIGHT.......1800-3800 FT AGL UNTIL 1200, THEN 4400-6400 FT
AGL.
SMOKE DISPERSAL.....FAIR TO GOOD.
FORECAST DAYS 3 THROUGH 7...
MONDAY NIGHT
PARTLY CLOUDY. SCATTERED SHOWERS AND
THUNDERSTORMS IN THE EVENING, THEN SCATTERED SHOWERS AND ISOLATED
THUNDERSTORMS AFTER MIDNIGHT. LOWS IN THE UPPER 40S. NORTHWEST
WINDS AROUND 10 MPH.
TUESDAY
MOSTLY CLOUDY. SCATTERED SHOWERS AND ISOLATED
THUNDERSTORMS. LOWS IN THE UPPER 40S. HIGHS IN THE UPPER 60S.
NORTHWEST WINDS AROUND 10 MPH.
WEDNESDAY
MOSTLY CLEAR WITH ISOLATED SHOWERS AND
THUNDERSTORMS. LOWS IN THE MID 40S. HIGHS IN THE UPPER 60S. WINDS
GENERALLY LESS THAN 10 MPH.
THURSDAY
CLEAR. LOWS IN THE MID 40S. HIGHS IN THE LOWER 70S.
WINDS GENERALLY LESS THAN 10 MPH.
FRIDAY
PARTLY CLOUDY. LOWS IN THE UPPER 40S. HIGHS IN THE MID
70S.
SATURDAY
PARTLY CLOUDY. ISOLATED SHOWERS IN THE AFTERNOON.
HIGHS IN THE MID 70S.
WYZ282-151215-
SOUTH BIGHORN BASIN/WORLAND BLM-
INCLUDING THE CITIES OF TEN SLEEP, THERMOPOLIS, AND WORLAND
407 AM MDT SUN SEP 14 2025
TODAY
SKY/WEATHER.........MOSTLY SUNNY.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....68-73.
24 HR TREND......6 DEGREES WARMER.
MIN HUMIDITY........20-26 PERCENT.
24 HR TREND......14 PERCENT DRIER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH. GUSTS UP TO 15 MPH.
RIDGE TOP WINDS.....SOUTH AROUND 10 MPH UNTIL 1200, THEN NORTH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....SOUTHWEST AROUND 10 MPH.
MIXING HEIGHT.......1200-3200 FT AGL UNTIL 1200, THEN 6200-8200 FT
AGL.
SMOKE DISPERSAL.....POOR UNTIL 1200, THEN FAIR TO GOOD.
TONIGHT
SKY/WEATHER.........MOSTLY CLEAR.
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....46-51.
24 HR TREND......3 DEGREES WARMER.
MAX HUMIDITY........48-54 PERCENT.
24 HR TREND......20 PERCENT DRIER.
HUMIDITY RECOVERY...MODERATE.
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 4-7 MPH UNTIL 0300, THEN
SOUTHWEST AROUND 10 MPH. GUSTS UP TO 15 MPH.
RIDGE TOP WINDS.....EAST AROUND 10 MPH UNTIL 2400, THEN SOUTHWEST.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....SOUTHEAST AROUND 10 MPH UNTIL 2400, THEN
SOUTHWEST.
MIXING HEIGHT.......2600-4600 FT AGL UNTIL 2400, THEN 400-600 FT
AGL.
SMOKE DISPERSAL.....POOR.
MONDAY
SKY/WEATHER.........PARTLY CLOUDY. ISOLATED SHOWERS IN THE MORNING.
SCATTERED SHOWERS LATE IN THE MORNING. ISOLATED
THUNDERSTORMS IN THE AFTERNOON. CHANCE OF
PRECIPITATION 50 PERCENT.
CHANCE OF THUNDER...20 PERCENT.
MAX TEMPERATURE.....64-69.
24 HR TREND......6 DEGREES COOLER.
MIN HUMIDITY........31-37 PERCENT.
24 HR TREND......11 PERCENT WETTER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH UNTIL 0900, THEN WEST
AROUND 10 MPH UNTIL 1500, THEN NORTHWEST. GUSTS
UP TO 20 MPH.
RIDGE TOP WINDS.....SOUTHWEST AROUND 10 MPH UNTIL 1200, THEN
NORTHWEST.
CHC OF WETTING RAIN.ZERO PERCENT UNTIL 1200, THEN 15 PERCENT.
TRANSPORT WINDS.....SOUTHWEST AROUND 10 MPH UNTIL 1200, THEN
NORTHWEST.
MIXING HEIGHT.......1200-3200 FT AGL UNTIL 1200, THEN 4400-6400 FT
AGL.
SMOKE DISPERSAL.....POOR UNTIL 1200, THEN GOOD.
FORECAST DAYS 3 THROUGH 7...
MONDAY NIGHT
PARTLY CLOUDY. SCATTERED SHOWERS AND ISOLATED
THUNDERSTORMS IN THE EVENING, THEN ISOLATED SHOWERS AFTER
MIDNIGHT. LOWS IN THE UPPER 40S. NORTHWEST WINDS AROUND 10 MPH.
TUESDAY
PARTLY CLOUDY WITH SCATTERED SHOWERS AND ISOLATED
THUNDERSTORMS. LOWS IN THE UPPER 40S. HIGHS IN THE UPPER 60S.
NORTHWEST WINDS AROUND 10 MPH.
WEDNESDAY
MOSTLY CLEAR. LOWS IN THE MID 40S. HIGHS IN THE
LOWER 70S. WINDS GENERALLY LESS THAN 10 MPH.
THURSDAY
CLEAR. LOWS IN THE UPPER 40S. HIGHS IN THE MID 70S.
WINDS GENERALLY LESS THAN 10 MPH.
FRIDAY THROUGH SATURDAY
PARTLY CLOUDY WITH ISOLATED SHOWERS.
LOWS AROUND 50. HIGHS IN THE UPPER 70S.
WYZ275-151215-
NORTH BIGHORN BASIN/WORLAND BLM-
INCLUDING THE CITIES OF GREYBULL, LOVELL, AND POWELL
407 AM MDT SUN SEP 14 2025
TODAY
SKY/WEATHER.........MOSTLY SUNNY.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....67-72.
24 HR TREND......9 DEGREES WARMER.
MIN HUMIDITY........22-28 PERCENT.
24 HR TREND......16 PERCENT DRIER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH.
RIDGE TOP WINDS.....SOUTH AROUND 10 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....SOUTH AROUND 10 MPH UNTIL 1200, THEN SOUTHWEST.
MIXING HEIGHT.......1000-3000 FT AGL UNTIL 1200, THEN 5800-7800 FT
AGL.
SMOKE DISPERSAL.....POOR UNTIL 1200, THEN GOOD.
TONIGHT
SKY/WEATHER.........MOSTLY CLEAR.
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....47-52.
24 HR TREND......3 DEGREES WARMER.
MAX HUMIDITY........51-57 PERCENT.
24 HR TREND......20 PERCENT DRIER.
HUMIDITY RECOVERY...MODERATE.
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 4-7 MPH. GUSTS UP TO 15
MPH.
RIDGE TOP WINDS.....SOUTHEAST AROUND 10 MPH UNTIL 2400, THEN
SOUTHWEST.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....SOUTH AROUND 10 MPH.
MIXING HEIGHT.......2600-4600 FT AGL UNTIL 2400, THEN 400-800 FT
AGL.
SMOKE DISPERSAL.....POOR.
MONDAY
SKY/WEATHER.........PARTLY CLOUDY. ISOLATED SHOWERS IN THE MORNING.
SCATTERED SHOWERS LATE IN THE MORNING. ISOLATED
THUNDERSTORMS IN THE AFTERNOON. CHANCE OF
PRECIPITATION 50 PERCENT.
CHANCE OF THUNDER...20 PERCENT.
MAX TEMPERATURE.....61-66.
24 HR TREND......7 DEGREES COOLER.
MIN HUMIDITY........34-40 PERCENT.
24 HR TREND......11 PERCENT WETTER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH UNTIL 0900, THEN
NORTHWEST 10 TO 15 MPH WITH GUSTS TO AROUND 25
MPH.
RIDGE TOP WINDS.....WEST AROUND 10 MPH UNTIL 1200, THEN NORTHWEST.
CHC OF WETTING RAIN.ZERO PERCENT UNTIL 1200, THEN 10 PERCENT.
TRANSPORT WINDS.....WEST AROUND 10 MPH UNTIL 1200, THEN NORTHWEST.
MIXING HEIGHT.......800-2800 FT AGL UNTIL 1200, THEN 4000-6000 FT
AGL.
SMOKE DISPERSAL.....POOR TO FAIR.
FORECAST DAYS 3 THROUGH 7...
MONDAY NIGHT
MOSTLY CLOUDY. SCATTERED SHOWERS AND ISOLATED
THUNDERSTORMS IN THE EVENING, THEN SCATTERED SHOWERS AFTER
MIDNIGHT. LOWS AROUND 50. NORTHWEST WINDS AROUND 10 MPH.
TUESDAY
PARTLY CLOUDY. SCATTERED SHOWERS AND ISOLATED
THUNDERSTORMS. LOWS IN THE UPPER 40S. HIGHS IN THE UPPER 60S.
NORTHWEST WINDS AROUND 10 MPH.
WEDNESDAY
MOSTLY CLEAR. ISOLATED SHOWERS AND THUNDERSTORMS.
LOWS IN THE UPPER 40S. HIGHS IN THE LOWER 70S. WINDS GENERALLY
LESS THAN 10 MPH.
THURSDAY
CLEAR. LOWS IN THE UPPER 40S. HIGHS IN THE MID 70S.
WINDS GENERALLY LESS THAN 10 MPH.
FRIDAY
PARTLY CLOUDY. ISOLATED SHOWERS. LOWS AROUND 50. HIGHS
IN THE UPPER 70S.
SATURDAY
PARTLY CLOUDY. ISOLATED SHOWERS IN THE MORNING, THEN
ISOLATED SHOWERS AND THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE
MID 70S.
WYZ276-151215-
CODY FOOTHILLS-
INCLUDING THE CITIES OF CLARK, CODY, AND MEETEETSE
407 AM MDT SUN SEP 14 2025
TODAY
SKY/WEATHER.........MOSTLY SUNNY THEN BECOMING PARTLY CLOUDY.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....71-76.
24 HR TREND......9 DEGREES WARMER.
MIN HUMIDITY........25-31 PERCENT.
24 HR TREND......18 PERCENT DRIER.
20-FOOT WINDS.......WEST WINDS AROUND 10 MPH UNTIL 1200, THEN
UPSLOPE/UPVALLEY 5-9 MPH UNTIL 1500, THEN
SOUTHWEST AROUND 10 MPH. GUSTS UP TO 20 MPH.
RIDGE TOP WINDS.....SOUTHWEST 10 TO 15 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....WEST AROUND 15 MPH.
MIXING HEIGHT.......2200-4200 FT AGL UNTIL 1200, THEN 7600-9600 FT
AGL.
SMOKE DISPERSAL.....POOR TO FAIR UNTIL 1200, THEN GOOD TO VERY
GOOD.
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY.
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....48-53.
24 HR TREND......2 DEGREES WARMER.
MAX HUMIDITY........53-59 PERCENT.
24 HR TREND......17 PERCENT DRIER.
HUMIDITY RECOVERY...MODERATE.
20-FOOT WINDS.......WEST WINDS AROUND 10 MPH AND GUSTY.
RIDGE TOP WINDS.....WEST AROUND 15 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....WEST AROUND 15 MPH.
MIXING HEIGHT.......2800-4800 FT AGL UNTIL 2400, THEN 600-1000 FT
AGL.
SMOKE DISPERSAL.....POOR TO FAIR.
MONDAY
SKY/WEATHER.........PARTLY CLOUDY. ISOLATED SHOWERS EARLY IN THE
MORNING. SCATTERED SHOWERS EARLY IN THE
MORNING. ISOLATED THUNDERSTORMS IN THE
AFTERNOON. CHANCE OF PRECIPITATION 50 PERCENT.
CHANCE OF THUNDER...20 PERCENT.
MAX TEMPERATURE.....65-70.
24 HR TREND......5 DEGREES COOLER.
MIN HUMIDITY........31-37 PERCENT.
24 HR TREND......6 PERCENT WETTER.
20-FOOT WINDS.......WEST WINDS AROUND 10 MPH UNTIL 1200, THEN
NORTHWEST. GUSTS UP TO 20 MPH.
RIDGE TOP WINDS.....WEST AROUND 15 MPH UNTIL 1200, THEN NORTHWEST.
CHC OF WETTING RAIN.ZERO PERCENT UNTIL 1200, THEN 35 PERCENT.
TRANSPORT WINDS.....WEST AROUND 15 MPH.
MIXING HEIGHT.......1800-3800 FT AGL UNTIL 1200, THEN 5000-7000 FT
AGL.
SMOKE DISPERSAL.....FAIR TO GOOD.
FORECAST DAYS 3 THROUGH 7...
MONDAY NIGHT
MOSTLY CLOUDY. SCATTERED SHOWERS AND ISOLATED
THUNDERSTORMS IN THE EVENING, THEN ISOLATED SHOWERS AFTER
MIDNIGHT. LOWS IN THE UPPER 40S. NORTHWEST WINDS AROUND 10 MPH.
TUESDAY
PARTLY CLOUDY WITH SCATTERED SHOWERS AND ISOLATED
THUNDERSTORMS. LOWS IN THE MID 40S. HIGHS IN THE MID 60S.
NORTHWEST WINDS AROUND 10 MPH.
WEDNESDAY THROUGH THURSDAY
MOSTLY CLEAR. LOWS IN THE UPPER
40S. HIGHS 68 TO 73. WINDS GENERALLY LESS THAN 10 MPH.
FRIDAY
PARTLY CLOUDY. ISOLATED SHOWERS. LOWS AROUND 50. HIGHS
IN THE LOWER 70S.
SATURDAY
PARTLY CLOUDY. ISOLATED SHOWERS IN THE MORNING, THEN
SCATTERED SHOWERS AND ISOLATED THUNDERSTORMS IN THE AFTERNOON.
HIGHS IN THE LOWER 70S.
WYZ287-151215-
OWL CREEK MOUNTAINS-
407 AM MDT SUN SEP 14 2025
TODAY
SKY/WEATHER.........MOSTLY SUNNY.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....67-72.
24 HR TREND......6 DEGREES WARMER.
MIN HUMIDITY........23-29 PERCENT.
24 HR TREND......16 PERCENT DRIER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH. GUSTS UP TO 15 MPH.
RIDGE TOP WINDS.....SOUTHWEST AROUND 10 MPH UNTIL 1200, THEN
SOUTHEAST.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....WEST AROUND 10 MPH.
MIXING HEIGHT.......1400-3400 FT AGL UNTIL 1200, THEN 6600-8600 FT
AGL.
SMOKE DISPERSAL.....POOR UNTIL 1200, THEN GOOD.
TONIGHT
SKY/WEATHER.........MOSTLY CLEAR.
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....48-53.
24 HR TREND......4 DEGREES WARMER.
MAX HUMIDITY........47-53 PERCENT.
24 HR TREND......24 PERCENT DRIER.
HUMIDITY RECOVERY...MODERATE.
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 4-7 MPH UNTIL 2100, THEN
WEST 10 TO 15 MPH. GUSTS UP TO 20 MPH.
RIDGE TOP WINDS.....WEST AROUND 15 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....WEST AROUND 15 MPH.
MIXING HEIGHT.......2600-4600 FT AGL UNTIL 2400, THEN 200-600 FT
AGL.
SMOKE DISPERSAL.....POOR.
MONDAY
SKY/WEATHER.........PARTLY CLOUDY. ISOLATED SHOWERS EARLY IN THE
MORNING, THEN SCATTERED SHOWERS. ISOLATED
THUNDERSTORMS IN THE AFTERNOON. CHANCE OF
PRECIPITATION 50 PERCENT.
CHANCE OF THUNDER...20 PERCENT.
MAX TEMPERATURE.....63-68.
24 HR TREND......4 DEGREES COOLER.
MIN HUMIDITY........26-32 PERCENT.
24 HR TREND......4 PERCENT WETTER.
20-FOOT WINDS.......WEST WINDS AROUND 10 MPH WITH HIGHER GUSTS.
RIDGE TOP WINDS.....WEST AROUND 15 MPH.
CHC OF WETTING RAIN.ZERO PERCENT UNTIL 1200, THEN 25 PERCENT.
TRANSPORT WINDS.....WEST AROUND 15 MPH.
MIXING HEIGHT.......1800-3800 FT AGL UNTIL 1200, THEN 5200-7200 FT
AGL.
SMOKE DISPERSAL.....POOR TO FAIR UNTIL 1200, THEN GOOD TO VERY
GOOD.
FORECAST DAYS 3 THROUGH 7...
MONDAY NIGHT
PARTLY CLOUDY. ISOLATED SHOWERS AND THUNDERSTORMS
IN THE EVENING, THEN ISOLATED SHOWERS AFTER MIDNIGHT. LOWS IN THE
UPPER 40S. NORTHWEST WINDS AROUND 10 MPH.
TUESDAY
PARTLY CLOUDY WITH SCATTERED SHOWERS AND ISOLATED
THUNDERSTORMS. LOWS IN THE MID 40S. HIGHS IN THE LOWER 60S. NORTH
WINDS AROUND 10 MPH.
WEDNESDAY
MOSTLY CLEAR. LOWS IN THE MID 40S. HIGHS IN THE MID
60S. WINDS GENERALLY LESS THAN 10 MPH.
THURSDAY
CLEAR. LOWS IN THE UPPER 40S. HIGHS IN THE UPPER 60S.
WINDS GENERALLY LESS THAN 10 MPH.
FRIDAY
PARTLY CLOUDY. ISOLATED SHOWERS. LOWS IN THE UPPER 40S.
HIGHS IN THE LOWER 70S.
SATURDAY
PARTLY CLOUDY. ISOLATED SHOWERS IN THE MORNING, THEN
SCATTERED SHOWERS AND ISOLATED THUNDERSTORMS IN THE AFTERNOON.
HIGHS AROUND 70.
WYZ286-151215-
ABSAROKA MOUNTAINS/NORTH SHOSHONE NF-
INCLUDING THE CITY OF PAHASKA
407 AM MDT SUN SEP 14 2025
TODAY
SKY/WEATHER.........MOSTLY SUNNY THEN BECOMING PARTLY CLOUDY.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....62-67.
24 HR TREND......5 DEGREES WARMER.
MIN HUMIDITY........34-40 PERCENT.
24 HR TREND......13 PERCENT DRIER.
20-FOOT WINDS.......WEST WINDS 10 TO 15 MPH. GUSTS UP TO 20 MPH
UNTIL 1200, THEN 30 MPH.
RIDGE TOP WINDS.....WEST 15 TO 20 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....WEST 15 TO 20 MPH.
MIXING HEIGHT.......1800-3800 FT AGL UNTIL 1200, THEN 6000-8000 FT
AGL.
SMOKE DISPERSAL.....POOR TO FAIR UNTIL 1200, THEN GOOD TO VERY
GOOD.
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY. ISOLATED SHOWERS EARLY IN THE
MORNING. CHANCE OF SHOWERS 20 PERCENT.
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....42-47.
24 HR TREND......1 DEGREE WARMER.
MAX HUMIDITY........67-73 PERCENT.
24 HR TREND......19 PERCENT DRIER.
HUMIDITY RECOVERY...GOOD.
20-FOOT WINDS.......WEST WINDS AROUND 15 MPH WITH GUSTS TO AROUND
25 MPH.
RIDGE TOP WINDS.....WEST 15 TO 20 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....WEST AROUND 20 MPH.
MIXING HEIGHT.......2600-4600 FT AGL UNTIL 2400, THEN 400-1000 FT
AGL.
SMOKE DISPERSAL.....FAIR TO GOOD UNTIL 2400, THEN POOR.
MONDAY
SKY/WEATHER.........PARTLY CLOUDY. SCATTERED SHOWERS IN THE
MORNING, THEN NUMEROUS SHOWERS AND SCATTERED
THUNDERSTORMS IN THE AFTERNOON. CHANCE OF
PRECIPITATION 70 PERCENT.
CHANCE OF THUNDER...30 PERCENT.
MAX TEMPERATURE.....56-61.
24 HR TREND......6 DEGREES COOLER.
MIN HUMIDITY........37-43 PERCENT.
24 HR TREND......5 PERCENT WETTER.
20-FOOT WINDS.......WEST WINDS AROUND 15 MPH WITH GUSTS TO AROUND
30 MPH.
RIDGE TOP WINDS.....WEST AROUND 20 MPH.
CHC OF WETTING RAIN.5 PERCENT UNTIL 1200, THEN 40 PERCENT.
TRANSPORT WINDS.....WEST AROUND 20 MPH.
MIXING HEIGHT.......1800-3800 FT AGL UNTIL 1200, THEN 4400-6400 FT
AGL.
SMOKE DISPERSAL.....FAIR TO GOOD.
FORECAST DAYS 3 THROUGH 7...
MONDAY NIGHT
PARTLY CLOUDY. SCATTERED SHOWERS AND ISOLATED
THUNDERSTORMS IN THE EVENING, THEN ISOLATED SHOWERS AFTER
MIDNIGHT. LOWS IN THE UPPER 30S. NORTHWEST WINDS AROUND 10 MPH.
TUESDAY
PARTLY CLOUDY WITH SCATTERED SHOWERS AND ISOLATED
THUNDERSTORMS. LOWS IN THE UPPER 30S. HIGHS IN THE MID 50S. WINDS
GENERALLY LESS THAN 10 MPH.
WEDNESDAY THROUGH THURSDAY
MOSTLY CLEAR. LOWS IN THE LOWER
40S. HIGHS 59 TO 64. NORTHWEST WINDS AROUND 10 MPH.
FRIDAY THROUGH SATURDAY
PARTLY CLOUDY WITH SCATTERED SHOWERS
AND ISOLATED THUNDERSTORMS. LOWS IN THE LOWER 40S. HIGHS 60 TO
65.
WYZ140-151215-
YELLOWSTONE NATIONAL PARK-
INCLUDING THE CITIES OF LAKE, MAMMOTH, AND OLD FAITHFUL
407 AM MDT SUN SEP 14 2025
TODAY
SKY/WEATHER.........MOSTLY SUNNY THEN BECOMING PARTLY CLOUDY.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....61-66.
24 HR TREND......3 DEGREES WARMER.
MIN HUMIDITY........33-39 PERCENT.
24 HR TREND......5 PERCENT DRIER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH UNTIL 1200, THEN
SOUTHWEST AROUND 10 MPH. GUSTS UP TO 25 MPH.
RIDGE TOP WINDS.....SOUTHWEST 10 TO 15 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....SOUTHWEST AROUND 10 MPH UNTIL 1200, THEN AROUND
20 MPH.
MIXING HEIGHT.......1600-3600 FT AGL UNTIL 1200, THEN 5800-7800 FT
AGL.
SMOKE DISPERSAL.....POOR TO FAIR UNTIL 1200, THEN GOOD TO VERY
GOOD.
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY. ISOLATED THUNDERSTORMS UNTIL
EARLY MORNING. ISOLATED SHOWERS. CHANCE OF
PRECIPITATION 20 PERCENT.
CHANCE OF THUNDER...20 PERCENT.
MIN TEMPERATURE.....37-42.
24 HR TREND......UNCHANGED.
MAX HUMIDITY........81-87 PERCENT.
24 HR TREND......4 PERCENT WETTER.
HUMIDITY RECOVERY...EXCELLENT.
20-FOOT WINDS.......SOUTHWEST WINDS AROUND 10 MPH WITH GUSTS TO
AROUND 25 MPH.
RIDGE TOP WINDS.....SOUTHWEST AROUND 15 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....SOUTHWEST AROUND 15 MPH.
MIXING HEIGHT.......2200-4200 FT AGL UNTIL 2400, THEN 400-800 FT
AGL.
SMOKE DISPERSAL.....FAIR TO GOOD UNTIL 2400, THEN POOR.
MONDAY
SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY CLOUDY.
SCATTERED SHOWERS IN THE MORNING, THEN NUMEROUS
SHOWERS AND SCATTERED THUNDERSTORMS IN THE
AFTERNOON. CHANCE OF PRECIPITATION 70 PERCENT.
CHANCE OF THUNDER...30 PERCENT.
MAX TEMPERATURE.....51-56.
24 HR TREND......10 DEGREES COOLER.
MIN HUMIDITY........54-60 PERCENT.
24 HR TREND......19 PERCENT WETTER.
20-FOOT WINDS.......SOUTHWEST WINDS AROUND 10 MPH WITH GUSTS TO
AROUND 25 MPH.
RIDGE TOP WINDS.....SOUTHWEST AROUND 15 MPH.
CHC OF WETTING RAIN.5 PERCENT UNTIL 1200, THEN 50 PERCENT.
TRANSPORT WINDS.....WEST AROUND 15 MPH.
MIXING HEIGHT.......2000-4000 FT AGL.
SMOKE DISPERSAL.....POOR TO FAIR.
FORECAST DAYS 3 THROUGH 7...
MONDAY NIGHT
PARTLY CLOUDY. SCATTERED SHOWERS AND ISOLATED
THUNDERSTORMS IN THE EVENING, THEN ISOLATED SHOWERS AFTER
MIDNIGHT. LOWS IN THE MID 30S. WINDS GENERALLY LESS THAN 10 MPH.
TUESDAY
PARTLY CLOUDY WITH ISOLATED SHOWERS AND THUNDERSTORMS.
LOWS IN THE MID 30S. HIGHS IN THE UPPER 50S. WINDS GENERALLY LESS
THAN 10 MPH.
WEDNESDAY THROUGH THURSDAY
MOSTLY CLEAR. LOWS IN THE UPPER
30S. HIGHS 63 TO 68. WINDS GENERALLY LESS THAN 10 MPH.
FRIDAY THROUGH SATURDAY
PARTLY CLOUDY WITH SCATTERED SHOWERS
AND ISOLATED THUNDERSTORMS. LOWS AROUND 40. HIGHS 61 TO 66.
WYZ415-151215-
NORTH ZONE BRIDGER TETON NF AND GRAND TETON NP-
INCLUDING THE CITIES OF JACKSON AND MORAN
407 AM MDT SUN SEP 14 2025
TODAY
SKY/WEATHER.........MOSTLY SUNNY THEN BECOMING PARTLY CLOUDY.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....61-66.
24 HR TREND......3 DEGREES WARMER.
MIN HUMIDITY........38-44 PERCENT.
24 HR TREND......2 PERCENT DRIER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH UNTIL 1200, THEN WEST
AROUND 10 MPH WITH GUSTS TO AROUND 25 MPH.
RIDGE TOP WINDS.....SOUTH AROUND 10 MPH UNTIL 1200, THEN WEST.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....SOUTHWEST 10 TO 15 MPH.
MIXING HEIGHT.......1600-3600 FT AGL UNTIL 1200, THEN 6000-8000 FT
AGL.
SMOKE DISPERSAL.....POOR UNTIL 1200, THEN GOOD TO VERY GOOD.
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY. ISOLATED SHOWERS UNTIL EARLY
MORNING. ISOLATED THUNDERSTORMS THROUGH THE
NIGHT. SCATTERED SHOWERS AFTER MIDNIGHT. CHANCE
OF PRECIPITATION 50 PERCENT.
CHANCE OF THUNDER...20 PERCENT.
MIN TEMPERATURE.....37-42.
24 HR TREND......UNCHANGED.
MAX HUMIDITY........76-82 PERCENT.
24 HR TREND......5 PERCENT WETTER.
HUMIDITY RECOVERY...EXCELLENT.
20-FOOT WINDS.......SOUTHWEST WINDS AROUND 10 MPH UNTIL 0300, THEN
DOWNSLOPE/DOWNVALLEY 4-7 MPH. GUSTS UP TO 20
MPH.
RIDGE TOP WINDS.....SOUTHWEST 10 TO 15 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....SOUTHWEST 10 TO 15 MPH.
MIXING HEIGHT.......2000-4000 FT AGL UNTIL 2400, THEN 400-1000 FT
AGL.
SMOKE DISPERSAL.....POOR.
MONDAY
SKY/WEATHER.........PARTLY CLOUDY. SCATTERED SHOWERS THROUGH THE
DAY. ISOLATED THUNDERSTORMS EARLY IN THE
AFTERNOON, THEN SCATTERED THUNDERSTORMS LATE IN
THE AFTERNOON. CHANCE OF PRECIPITATION 50
PERCENT.
CHANCE OF THUNDER...30 PERCENT.
MAX TEMPERATURE.....53-58.
24 HR TREND......8 DEGREES COOLER.
MIN HUMIDITY........46-52 PERCENT.
24 HR TREND......8 PERCENT WETTER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH UNTIL 0900, THEN WEST
AROUND 10 MPH. GUSTS UP TO 25 MPH.
RIDGE TOP WINDS.....SOUTHWEST 10 TO 15 MPH.
CHC OF WETTING RAIN.17 PERCENT.
TRANSPORT WINDS.....WEST AROUND 15 MPH.
MIXING HEIGHT.......1600-3600 FT AGL UNTIL 1200, THEN 4200-6200 FT
AGL.
SMOKE DISPERSAL.....FAIR TO GOOD.
FORECAST DAYS 3 THROUGH 7...
MONDAY NIGHT
PARTLY CLOUDY. SCATTERED SHOWERS AND ISOLATED
THUNDERSTORMS IN THE EVENING. LOWS IN THE MID 30S. WINDS
GENERALLY LESS THAN 10 MPH.
TUESDAY
MOSTLY CLEAR. ISOLATED SHOWERS AND THUNDERSTORMS. LOWS
IN THE MID 30S. HIGHS AROUND 60. WINDS GENERALLY LESS THAN
10 MPH.
WEDNESDAY
CLEAR. LOWS IN THE UPPER 30S. HIGHS IN THE MID 60S.
WINDS GENERALLY LESS THAN 10 MPH.
THURSDAY
MOSTLY CLEAR. LOWS IN THE UPPER 30S. HIGHS IN THE
UPPER 60S. WINDS GENERALLY LESS THAN 10 MPH.
FRIDAY THROUGH SATURDAY
PARTLY CLOUDY WITH SCATTERED SHOWERS
AND ISOLATED THUNDERSTORMS. LOWS IN THE LOWER 40S. HIGHS 62 TO
67.
WYZ416-151215-
WEST WIND RIVER MOUNTAINS/EAST ZONE BRIDGER TETON NF-
407 AM MDT SUN SEP 14 2025
TODAY
SKY/WEATHER.........MOSTLY SUNNY THEN BECOMING PARTLY CLOUDY.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....58-63.
24 HR TREND......2 DEGREES WARMER.
MIN HUMIDITY........33-39 PERCENT.
24 HR TREND......3 PERCENT DRIER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH UNTIL 0900, THEN WEST
10 TO 15 MPH. GUSTS UP TO 25 MPH.
RIDGE TOP WINDS.....WEST AROUND 10 MPH UNTIL 1200, THEN AROUND 20
MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....WEST AROUND 10 MPH UNTIL 1200, THEN AROUND 20
MPH.
MIXING HEIGHT.......1600-3600 FT AGL UNTIL 1200, THEN 5400-7400 FT
AGL.
SMOKE DISPERSAL.....POOR TO FAIR UNTIL 1200, THEN GOOD TO VERY
GOOD.
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY. ISOLATED SHOWERS AND
THUNDERSTORMS AFTER MIDNIGHT. CHANCE OF
PRECIPITATION 20 PERCENT.
CHANCE OF THUNDER...20 PERCENT.
MIN TEMPERATURE.....37-42.
24 HR TREND......2 DEGREES WARMER.
MAX HUMIDITY........74-80 PERCENT.
24 HR TREND......6 PERCENT DRIER.
HUMIDITY RECOVERY...EXCELLENT.
20-FOOT WINDS.......WEST WINDS 10 TO 15 MPH. GUSTS UP TO 25 MPH
UNTIL 2400, THEN 15 MPH.
RIDGE TOP WINDS.....WEST AROUND 15 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....WEST AROUND 15 MPH.
MIXING HEIGHT.......2400-4400 FT AGL UNTIL 2400, THEN 400-800 FT
AGL.
SMOKE DISPERSAL.....FAIR TO GOOD UNTIL 2400, THEN POOR.
MONDAY
SKY/WEATHER.........PARTLY CLOUDY. SCATTERED SHOWERS THROUGH THE
DAY. ISOLATED THUNDERSTORMS IN THE AFTERNOON.
CHANCE OF PRECIPITATION 50 PERCENT.
CHANCE OF THUNDER...20 PERCENT.
MAX TEMPERATURE.....54-59.
24 HR TREND......5 DEGREES COOLER.
MIN HUMIDITY........36-42 PERCENT.
24 HR TREND......3 PERCENT WETTER.
20-FOOT WINDS.......WEST WINDS 10 TO 15 MPH WITH GUSTS TO AROUND 30
MPH.
RIDGE TOP WINDS.....WEST 15 TO 20 MPH.
CHC OF WETTING RAIN.7 PERCENT.
TRANSPORT WINDS.....WEST 15 TO 20 MPH.
MIXING HEIGHT.......1600-3600 FT AGL UNTIL 1200, THEN 5000-6800 FT
AGL.
SMOKE DISPERSAL.....POOR TO FAIR UNTIL 1200, THEN GOOD TO VERY
GOOD.
FORECAST DAYS 3 THROUGH 7...
MONDAY NIGHT
MOSTLY CLEAR. ISOLATED SHOWERS AND THUNDERSTORMS
IN THE EVENING. LOWS IN THE LOWER 30S. WINDS GENERALLY LESS THAN
10 MPH.
TUESDAY
MOSTLY CLEAR. ISOLATED SHOWERS AND THUNDERSTORMS. LOWS
IN THE LOWER 30S. HIGHS IN THE MID 50S. WINDS GENERALLY LESS THAN
10 MPH.
WEDNESDAY
CLEAR. LOWS IN THE MID 30S. HIGHS AROUND 60. WINDS
GENERALLY LESS THAN 10 MPH.
THURSDAY
MOSTLY CLEAR. LOWS IN THE UPPER 30S. HIGHS IN THE
LOWER 60S. WINDS GENERALLY LESS THAN 10 MPH.
FRIDAY
PARTLY CLOUDY. SCATTERED SHOWERS AND ISOLATED
THUNDERSTORMS. LOWS AROUND 40. HIGHS IN THE LOWER 60S.
SATURDAY
PARTLY CLOUDY. SCATTERED SHOWERS IN THE MORNING, THEN
SCATTERED SHOWERS AND ISOLATED THUNDERSTORMS IN THE AFTERNOON.
HIGHS AROUND 60.
WYZ288-151215-
EAST WIND RIVER MOUNTAINS/SOUTH SHOSHONE NF-
INCLUDING THE CITIES OF DUBOIS AND SOUTH PASS
407 AM MDT SUN SEP 14 2025
TODAY
SKY/WEATHER.........MOSTLY SUNNY THEN BECOMING PARTLY CLOUDY.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....61-66.
24 HR TREND......3 DEGREES WARMER.
MIN HUMIDITY........30-36 PERCENT.
24 HR TREND......6 PERCENT DRIER.
20-FOOT WINDS.......WEST WINDS 10 TO 15 MPH. GUSTS UP TO 20 MPH
UNTIL 1200, THEN 30 MPH.
RIDGE TOP WINDS.....WEST 15 TO 20 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....WEST 15 TO 20 MPH.
MIXING HEIGHT.......1800-3800 FT AGL UNTIL 1200, THEN 6000-8000 FT
AGL.
SMOKE DISPERSAL.....POOR TO FAIR UNTIL 1200, THEN VERY GOOD.
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY. ISOLATED SHOWERS AND
THUNDERSTORMS AFTER MIDNIGHT. CHANCE OF
PRECIPITATION 20 PERCENT.
CHANCE OF THUNDER...10 PERCENT.
MIN TEMPERATURE.....41-46.
24 HR TREND......3 DEGREES WARMER.
MAX HUMIDITY........61-67 PERCENT.
24 HR TREND......20 PERCENT DRIER.
HUMIDITY RECOVERY...GOOD.
20-FOOT WINDS.......WEST WINDS AROUND 15 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.......2600-4600 FT AGL UNTIL 2400, THEN 400-800 FT
AGL.
SMOKE DISPERSAL.....FAIR TO GOOD UNTIL 2400, THEN POOR.
MONDAY
SKY/WEATHER.........PARTLY CLOUDY. SCATTERED SHOWERS THROUGH THE
DAY. ISOLATED THUNDERSTORMS IN THE AFTERNOON.
CHANCE OF PRECIPITATION 50 PERCENT.
CHANCE OF THUNDER...20 PERCENT.
MAX TEMPERATURE.....58-63.
24 HR TREND......3 DEGREES COOLER.
MIN HUMIDITY........31-37 PERCENT.
24 HR TREND......1 PERCENT DRIER.
20-FOOT WINDS.......WEST WINDS 15 TO 20 MPH WITH GUSTS TO AROUND 35
MPH.
RIDGE TOP WINDS.....WEST 20 TO 25 MPH.
CHC OF WETTING RAIN.7 PERCENT.
TRANSPORT WINDS.....WEST 20 TO 25 MPH.
MIXING HEIGHT.......1800-3800 FT AGL UNTIL 1200, THEN 5400-7400 FT
AGL.
SMOKE DISPERSAL.....FAIR TO GOOD UNTIL 1200, THEN VERY GOOD.
FORECAST DAYS 3 THROUGH 7...
MONDAY NIGHT
MOSTLY CLEAR. ISOLATED SHOWERS AND THUNDERSTORMS
IN THE EVENING. LOWS IN THE UPPER 30S. NORTHWEST WINDS AROUND
10 MPH.
TUESDAY
PARTLY CLOUDY WITH SCATTERED SHOWERS AND ISOLATED
THUNDERSTORMS. LOWS IN THE UPPER 30S. HIGHS IN THE MID 50S.
NORTHEAST WINDS AROUND 10 MPH.
WEDNESDAY THROUGH THURSDAY
MOSTLY CLEAR. LOWS 39 TO 44. HIGHS
60 TO 65. WINDS GENERALLY LESS THAN 10 MPH.
FRIDAY
PARTLY CLOUDY WITH ISOLATED SHOWERS AND THUNDERSTORMS.
LOWS IN THE MID 40S. HIGHS IN THE MID 60S.
SATURDAY
PARTLY CLOUDY. SCATTERED SHOWERS IN THE MORNING, THEN
SCATTERED SHOWERS AND ISOLATED THUNDERSTORMS IN THE AFTERNOON.
HIGHS IN THE LOWER 60S.
WYZ414-151215-
SALT AND WYOMING RANGES/WEST ZONE BRIDGER TETON NF-
INCLUDING THE CITY OF AFTON
407 AM MDT SUN SEP 14 2025
TODAY
SKY/WEATHER.........MOSTLY SUNNY THEN BECOMING PARTLY CLOUDY.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....60-65.
24 HR TREND......2 DEGREES WARMER.
MIN HUMIDITY........33-39 PERCENT.
24 HR TREND......UNCHANGED.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH UNTIL 1200, THEN WEST
10 TO 15 MPH WITH GUSTS TO AROUND 30 MPH.
RIDGE TOP WINDS.....SOUTHWEST 10 TO 15 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....SOUTHWEST AROUND 10 MPH UNTIL 1200, THEN WEST
AROUND 20 MPH.
MIXING HEIGHT.......2000-4000 FT AGL UNTIL 1200, THEN 6200-8200 FT
AGL.
SMOKE DISPERSAL.....POOR TO FAIR UNTIL 1200, THEN GOOD TO VERY
GOOD.
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY. ISOLATED SHOWERS IN THE LATE
EVENING AND EARLY MORNING. ISOLATED
THUNDERSTORMS IN THE LATE EVENING AND
OVERNIGHT. SCATTERED SHOWERS EARLY IN THE
MORNING. CHANCE OF PRECIPITATION 50 PERCENT.
CHANCE OF THUNDER...20 PERCENT.
MIN TEMPERATURE.....37-42.
24 HR TREND......1 DEGREE WARMER.
MAX HUMIDITY........80-86 PERCENT.
24 HR TREND......3 PERCENT WETTER.
HUMIDITY RECOVERY...EXCELLENT.
20-FOOT WINDS.......SOUTHWEST WINDS AROUND 10 MPH WITH GUSTS TO
AROUND 25 MPH UNTIL 0300, THEN
DOWNSLOPE/DOWNVALLEY 4-7 MPH.
RIDGE TOP WINDS.....SOUTHWEST 10 TO 15 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....SOUTHWEST 10 TO 15 MPH.
MIXING HEIGHT.......2600-4600 FT AGL UNTIL 2400, THEN 400-1000 FT
AGL.
SMOKE DISPERSAL.....POOR TO FAIR UNTIL 2400, THEN POOR.
MONDAY
SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY SUNNY.
SCATTERED SHOWERS UNTIL LATE AFTERNOON.
ISOLATED THUNDERSTORMS IN THE AFTERNOON.
ISOLATED SHOWERS LATE IN THE AFTERNOON. CHANCE
OF PRECIPITATION 50 PERCENT.
CHANCE OF THUNDER...20 PERCENT.
MAX TEMPERATURE.....55-60.
24 HR TREND......4 DEGREES COOLER.
MIN HUMIDITY........36-42 PERCENT.
24 HR TREND......2 PERCENT WETTER.
20-FOOT WINDS.......WEST WINDS 10 TO 15 MPH. GUSTS UP TO 25 MPH
UNTIL 1200, THEN 35 MPH.
RIDGE TOP WINDS.....WEST 15 TO 20 MPH.
CHC OF WETTING RAIN.LESS THAN 5 PERCENT.
TRANSPORT WINDS.....WEST 15 TO 20 MPH.
MIXING HEIGHT.......1400-3400 FT AGL UNTIL 1200, THEN 4800-6800 FT
AGL.
SMOKE DISPERSAL.....POOR TO FAIR UNTIL 1200, THEN GOOD TO VERY
GOOD.
FORECAST DAYS 3 THROUGH 7...
MONDAY NIGHT
MOSTLY CLEAR. ISOLATED SHOWERS IN THE EVENING.
LOWS IN THE MID 30S. WINDS GENERALLY LESS THAN 10 MPH.
TUESDAY
MOSTLY CLEAR. LOWS IN THE UPPER 30S. HIGHS IN THE
LOWER 60S. WINDS GENERALLY LESS THAN 10 MPH.
WEDNESDAY
CLEAR. LOWS IN THE UPPER 30S. HIGHS IN THE MID 60S.
WINDS GENERALLY LESS THAN 10 MPH.
THURSDAY
MOSTLY CLEAR. LOWS IN THE LOWER 40S. HIGHS IN THE
UPPER 60S. WINDS GENERALLY LESS THAN 10 MPH.
FRIDAY
PARTLY CLOUDY. SCATTERED SHOWERS AND ISOLATED
THUNDERSTORMS. LOWS IN THE LOWER 40S. HIGHS IN THE UPPER 60S.
SATURDAY
PARTLY CLOUDY. SCATTERED SHOWERS IN THE MORNING, THEN
SCATTERED SHOWERS AND ISOLATED THUNDERSTORMS IN THE AFTERNOON.
HIGHS IN THE LOWER 60S.
WYZ278-151215-
UPPER GREEN RIVER BASIN/ROCK SPRINGS BLM-
INCLUDING THE CITIES OF BIG PINEY, FARSON, AND PINEDALE
407 AM MDT SUN SEP 14 2025
TODAY
SKY/WEATHER.........MOSTLY SUNNY THEN BECOMING PARTLY CLOUDY.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....61-66.
24 HR TREND......2 DEGREES WARMER.
MIN HUMIDITY........27-33 PERCENT.
24 HR TREND......3 PERCENT DRIER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH UNTIL 1200, THEN WEST
10 TO 15 MPH WITH GUSTS TO AROUND 25 MPH.
RIDGE TOP WINDS.....WEST 10 TO 15 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....WEST 10 TO 15 MPH.
MIXING HEIGHT.......1600-3600 FT AGL UNTIL 1200, THEN 6800-8800 FT
AGL.
SMOKE DISPERSAL.....POOR UNTIL 1200, THEN GOOD TO VERY GOOD.
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY. ISOLATED SHOWERS AND
THUNDERSTORMS AFTER MIDNIGHT. CHANCE OF
PRECIPITATION 20 PERCENT.
CHANCE OF THUNDER...10 PERCENT.
MIN TEMPERATURE.....37-42.
24 HR TREND......3 DEGREES WARMER.
MAX HUMIDITY........74-80 PERCENT.
24 HR TREND......8 PERCENT DRIER.
HUMIDITY RECOVERY...EXCELLENT.
20-FOOT WINDS.......WEST WINDS AROUND 10 MPH WITH GUSTS TO AROUND
25 MPH UNTIL 2100, THEN DOWNSLOPE/DOWNVALLEY
4-7 MPH.
RIDGE TOP WINDS.....NORTHWEST 10 TO 15 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....WEST 10 TO 15 MPH.
MIXING HEIGHT.......3400-5400 FT AGL UNTIL 2400, THEN 400-600 FT
AGL.
SMOKE DISPERSAL.....FAIR TO GOOD UNTIL 2400, THEN POOR.
MONDAY
SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY SUNNY.
SCATTERED SHOWERS IN THE MORNING, THEN ISOLATED
SHOWERS AND THUNDERSTORMS IN THE AFTERNOON.
CHANCE OF PRECIPITATION 50 PERCENT.
CHANCE OF THUNDER...20 PERCENT.
MAX TEMPERATURE.....60-65.
24 HR TREND......2 DEGREES COOLER.
MIN HUMIDITY........27-33 PERCENT.
24 HR TREND......2 PERCENT DRIER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH UNTIL 0900. WINDS WEST
AROUND 20 MPH AFTER 1500. GUSTS UP TO 30 MPH.
RIDGE TOP WINDS.....WEST 15 TO 20 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....WEST AROUND 15 MPH UNTIL 1200, THEN AROUND 25
MPH.
MIXING HEIGHT.......1600-3600 FT AGL UNTIL 1200, THEN 6200-8200 FT
AGL.
SMOKE DISPERSAL.....POOR TO FAIR UNTIL 1200, THEN VERY GOOD TO
EXCELLENT.
FORECAST DAYS 3 THROUGH 7...
MONDAY NIGHT
MOSTLY CLEAR. LOWS IN THE MID 30S. NORTHWEST
WINDS AROUND 10 MPH.
TUESDAY
MOSTLY CLEAR. ISOLATED SHOWERS AND THUNDERSTORMS. LOWS
IN THE MID 30S. HIGHS IN THE MID 60S. WINDS GENERALLY LESS THAN
10 MPH.
WEDNESDAY
CLEAR. LOWS IN THE UPPER 30S. HIGHS IN THE UPPER
60S. WINDS GENERALLY LESS THAN 10 MPH.
THURSDAY
MOSTLY CLEAR. LOWS IN THE UPPER 30S. HIGHS IN THE
LOWER 70S. WINDS GENERALLY LESS THAN 10 MPH.
FRIDAY
PARTLY CLOUDY. ISOLATED SHOWERS. LOWS IN THE LOWER 40S.
HIGHS IN THE LOWER 70S.
SATURDAY
PARTLY CLOUDY. ISOLATED SHOWERS IN THE MORNING, THEN
ISOLATED SHOWERS AND THUNDERSTORMS IN THE AFTERNOON. HIGHS AROUND
70.
WYZ277-151215-
LINCOLN AND UINTA COUNTIES/LOWER ELEVATIONS-
INCLUDING THE CITIES OF EVANSTON, FORT BRIDGER, AND KEMMERER
407 AM MDT SUN SEP 14 2025
TODAY
SKY/WEATHER.........MOSTLY SUNNY THEN BECOMING PARTLY CLOUDY.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....64-69.
24 HR TREND......3 DEGREES WARMER.
MIN HUMIDITY........23-29 PERCENT.
24 HR TREND......3 PERCENT DRIER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH UNTIL 1200, THEN WEST
10 TO 15 MPH WITH GUSTS TO AROUND 25 MPH.
RIDGE TOP WINDS.....WEST 10 TO 15 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....WEST AROUND 10 MPH UNTIL 1200, THEN AROUND 20
MPH.
MIXING HEIGHT.......1800-3800 FT AGL UNTIL 1200, THEN 7200-9200 FT
AGL.
SMOKE DISPERSAL.....POOR TO FAIR UNTIL 1200, THEN VERY GOOD.
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY. ISOLATED SHOWERS AND
THUNDERSTORMS AFTER MIDNIGHT. CHANCE OF
PRECIPITATION 20 PERCENT.
CHANCE OF THUNDER...10 PERCENT.
MIN TEMPERATURE.....40-45.
24 HR TREND......3 DEGREES WARMER.
MAX HUMIDITY........70-76 PERCENT.
24 HR TREND......5 PERCENT DRIER.
HUMIDITY RECOVERY...EXCELLENT.
20-FOOT WINDS.......WEST WINDS AROUND 15 MPH WITH GUSTS TO AROUND
25 MPH UNTIL 2100, THEN DOWNSLOPE/DOWNVALLEY
4-7 MPH.
RIDGE TOP WINDS.....WEST 10 TO 15 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....WEST 10 TO 15 MPH.
MIXING HEIGHT.......3000-5000 FT AGL UNTIL 2400, THEN 400-800 FT
AGL.
SMOKE DISPERSAL.....FAIR TO GOOD UNTIL 2400, THEN POOR.
MONDAY
SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY SUNNY.
ISOLATED SHOWERS THROUGH THE DAY. ISOLATED
THUNDERSTORMS IN THE AFTERNOON. CHANCE OF
PRECIPITATION 20 PERCENT.
CHANCE OF THUNDER...20 PERCENT.
MAX TEMPERATURE.....62-67.
24 HR TREND......3 DEGREES COOLER.
MIN HUMIDITY........23-29 PERCENT.
24 HR TREND......UNCHANGED.
20-FOOT WINDS.......WEST WINDS 10 TO 15 MPH WITH GUSTS TO AROUND 30
MPH UNTIL 1500, THEN AROUND 20 MPH WITH GUSTS
TO AROUND 30 MPH.
RIDGE TOP WINDS.....WEST AROUND 15 MPH UNTIL 1200, THEN AROUND 25
MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....WEST AROUND 15 MPH UNTIL 1200, THEN AROUND 25
MPH.
MIXING HEIGHT.......1400-3400 FT AGL UNTIL 1200, THEN 5600-7600 FT
AGL.
SMOKE DISPERSAL.....POOR TO FAIR UNTIL 1200, THEN VERY GOOD TO
EXCELLENT.
FORECAST DAYS 3 THROUGH 7...
MONDAY NIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 30S. NORTHWEST
WINDS AROUND 10 MPH.
TUESDAY
MOSTLY CLEAR. LOWS IN THE UPPER 30S. HIGHS IN THE MID
60S. WINDS GENERALLY LESS THAN 10 MPH.
WEDNESDAY
CLEAR. LOWS IN THE UPPER 30S. HIGHS AROUND 70. WINDS
GENERALLY LESS THAN 10 MPH.
THURSDAY
MOSTLY CLEAR. LOWS IN THE LOWER 40S. HIGHS IN THE
LOWER 70S. WINDS GENERALLY LESS THAN 10 MPH.
FRIDAY
PARTLY CLOUDY. SCATTERED SHOWERS AND ISOLATED
THUNDERSTORMS. LOWS IN THE MID 40S. HIGHS IN THE LOWER 70S.
SATURDAY
PARTLY CLOUDY. SCATTERED SHOWERS IN THE MORNING, THEN
SCATTERED SHOWERS AND ISOLATED THUNDERSTORMS IN THE AFTERNOON.
HIGHS AROUND 70.
WYZ279-151215-
SWEETWATER COUNTY/ROCK SPRINGS BLM/FLAMING GORGE NRA-
INCLUDING THE CITIES OF GREEN RIVER, ROCK SPRINGS, AND WAMSUTTER
407 AM MDT SUN SEP 14 2025
TODAY
SKY/WEATHER.........MOSTLY SUNNY THEN BECOMING PARTLY CLOUDY.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....64-69.
24 HR TREND......4 DEGREES WARMER.
MIN HUMIDITY........26-32 PERCENT.
24 HR TREND......9 PERCENT DRIER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH UNTIL 0900, THEN WEST
10 TO 15 MPH WITH GUSTS TO AROUND 30 MPH.
RIDGE TOP WINDS.....WEST 15 TO 20 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....WEST 15 TO 20 MPH.
MIXING HEIGHT.......1400-3400 FT AGL UNTIL 1200, THEN 6800-8800 FT
AGL.
SMOKE DISPERSAL.....POOR TO FAIR UNTIL 1200, THEN VERY GOOD.
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY.
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....45-50.
24 HR TREND......4 DEGREES WARMER.
MAX HUMIDITY........62-68 PERCENT.
24 HR TREND......19 PERCENT DRIER.
HUMIDITY RECOVERY...GOOD.
20-FOOT WINDS.......SOUTHWEST WINDS AROUND 10 MPH. GUSTS UP TO 25
MPH UNTIL 2400, THEN 15 MPH.
RIDGE TOP WINDS.....SOUTHWEST AROUND 15 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....SOUTHWEST AROUND 15 MPH.
MIXING HEIGHT.......3600-5600 FT AGL UNTIL 2400, THEN 400-600 FT
AGL.
SMOKE DISPERSAL.....GOOD UNTIL 2400, THEN POOR.
MONDAY
SKY/WEATHER.........PARTLY CLOUDY. ISOLATED SHOWERS THROUGH THE
DAY. ISOLATED THUNDERSTORMS IN THE AFTERNOON.
CHANCE OF PRECIPITATION 20 PERCENT.
CHANCE OF THUNDER...20 PERCENT.
MAX TEMPERATURE.....65-70.
24 HR TREND......1 DEGREE WARMER.
MIN HUMIDITY........27-33 PERCENT.
24 HR TREND......1 PERCENT DRIER.
20-FOOT WINDS.......SOUTHWEST WINDS 10 TO 15 MPH UNTIL 1500, THEN
WEST AROUND 20 MPH. GUSTS UP TO 30 MPH.
RIDGE TOP WINDS.....SOUTHWEST AROUND 15 MPH UNTIL 1200, THEN WEST
AROUND 25 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....SOUTHWEST AROUND 15 MPH UNTIL 1200, THEN WEST
AROUND 30 MPH.
MIXING HEIGHT.......1400-3400 FT AGL UNTIL 1200, THEN 6600-8600 FT
AGL.
SMOKE DISPERSAL.....POOR TO FAIR UNTIL 1200, THEN EXCELLENT.
FORECAST DAYS 3 THROUGH 7...
MONDAY NIGHT
PARTLY CLOUDY. ISOLATED SHOWERS IN THE EVENING.
LOWS AROUND 40. NORTHWEST WINDS AROUND 10 MPH.
TUESDAY
MOSTLY CLEAR. ISOLATED SHOWERS AND THUNDERSTORMS. LOWS
IN THE UPPER 30S. HIGHS IN THE MID 60S. NORTHEAST WINDS AROUND
10 MPH.
WEDNESDAY
CLEAR. LOWS AROUND 40. HIGHS IN THE UPPER 60S. WINDS
GENERALLY LESS THAN 10 MPH.
THURSDAY
MOSTLY CLEAR. LOWS IN THE LOWER 40S. HIGHS IN THE
LOWER 70S. WINDS GENERALLY LESS THAN 10 MPH.
FRIDAY
PARTLY CLOUDY WITH ISOLATED SHOWERS. LOWS IN THE MID
40S. HIGHS IN THE MID 70S.
SATURDAY
PARTLY CLOUDY. ISOLATED SHOWERS IN THE MORNING, THEN
SCATTERED SHOWERS AND ISOLATED THUNDERSTORMS IN THE AFTERNOON.
HIGHS IN THE LOWER 70S.
WYZ289-151215-
GRANITE/GREEN/FERRIS/RATTLESNAKE MOUNTAINS-
INCLUDING THE CITY OF JEFFREY CITY
407 AM MDT SUN SEP 14 2025
TODAY
SKY/WEATHER.........MOSTLY SUNNY.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....66-71.
24 HR TREND......3 DEGREES WARMER.
MIN HUMIDITY........19-25 PERCENT.
24 HR TREND......6 PERCENT DRIER.
20-FOOT WINDS.......WEST WINDS 10 TO 15 MPH. GUSTS UP TO 20 MPH
UNTIL 1200, THEN 30 MPH.
RIDGE TOP WINDS.....WEST 15 TO 20 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....WEST 15 TO 20 MPH.
MIXING HEIGHT.......1400-3400 FT AGL UNTIL 1200, THEN 6800-8800 FT
AGL.
SMOKE DISPERSAL.....POOR TO FAIR UNTIL 1200, THEN VERY GOOD.
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY.
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....45-50.
24 HR TREND......2 DEGREES WARMER.
MAX HUMIDITY........52-58 PERCENT.
24 HR TREND......19 PERCENT DRIER.
HUMIDITY RECOVERY...MODERATE.
20-FOOT WINDS.......WEST WINDS 10 TO 15 MPH. GUSTS UP TO 30 MPH
UNTIL 2400, THEN 20 MPH.
RIDGE TOP WINDS.....WEST AROUND 15 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....WEST AROUND 15 MPH.
MIXING HEIGHT.......3600-5600 FT AGL UNTIL 2400, THEN 400-600 FT
AGL.
SMOKE DISPERSAL.....GOOD UNTIL 2400, THEN POOR.
MONDAY
SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY SUNNY.
SCATTERED SHOWERS THROUGH THE DAY. ISOLATED
THUNDERSTORMS IN THE AFTERNOON. CHANCE OF
PRECIPITATION 40 PERCENT.
CHANCE OF THUNDER...20 PERCENT.
MAX TEMPERATURE.....67-72.
24 HR TREND......UNCHANGED.
MIN HUMIDITY........17-23 PERCENT.
24 HR TREND......1 PERCENT DRIER.
20-FOOT WINDS.......SOUTHWEST WINDS 10 TO 15 MPH WITH GUSTS TO
AROUND 30 MPH UNTIL 1200, THEN WEST AROUND 20
MPH WITH GUSTS TO AROUND 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 WEST
AROUND 30 MPH.
MIXING HEIGHT.......1200-3200 FT AGL UNTIL 1200, THEN 6400-8400 FT
AGL.
SMOKE DISPERSAL.....POOR TO FAIR UNTIL 1200, THEN EXCELLENT.
FORECAST DAYS 3 THROUGH 7...
MONDAY NIGHT
MOSTLY CLEAR. ISOLATED SHOWERS IN THE EVENING.
LOWS IN THE LOWER 40S. NORTHWEST WINDS AROUND 10 MPH.
TUESDAY
PARTLY CLOUDY WITH SCATTERED SHOWERS AND ISOLATED
THUNDERSTORMS. LOWS IN THE LOWER 40S. HIGHS IN THE MID 60S. NORTH
WINDS AROUND 10 MPH.
WEDNESDAY THROUGH THURSDAY
MOSTLY CLEAR. LOWS 41 TO 46. HIGHS
67 TO 72. WINDS GENERALLY LESS THAN 10 MPH.
FRIDAY
PARTLY CLOUDY. ISOLATED SHOWERS. LOWS IN THE UPPER 40S.
HIGHS IN THE MID 70S.
SATURDAY
PARTLY CLOUDY. ISOLATED SHOWERS IN THE MORNING, THEN
ISOLATED SHOWERS AND THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE
LOWER 70S.
WYZ300-151215-
CASPER MOUNTAIN-
407 AM MDT SUN SEP 14 2025
TODAY
SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY SUNNY.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....66-71.
24 HR TREND......2 DEGREES WARMER.
MIN HUMIDITY........24-30 PERCENT.
24 HR TREND......6 PERCENT DRIER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH UNTIL 0900, THEN WEST
10 TO 15 MPH. GUSTS UP TO 25 MPH.
RIDGE TOP WINDS.....WEST AROUND 15 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....WEST 15 TO 20 MPH.
MIXING HEIGHT.......1200-3200 FT AGL UNTIL 1200, THEN 6000-8000 FT
AGL.
SMOKE DISPERSAL.....POOR TO FAIR UNTIL 1200, THEN GOOD TO VERY
GOOD.
TONIGHT
SKY/WEATHER.........MOSTLY CLEAR.
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....47-52.
24 HR TREND......1 DEGREE WARMER.
MAX HUMIDITY........45-51 PERCENT.
24 HR TREND......24 PERCENT DRIER.
HUMIDITY RECOVERY...MODERATE.
20-FOOT WINDS.......WEST WINDS AROUND 10 MPH UNTIL 2100, THEN
DOWNSLOPE/DOWNVALLEY 4-7 MPH UNTIL 0300, THEN
SOUTHWEST AROUND 10 MPH. GUSTS UP TO 25 MPH.
RIDGE TOP WINDS.....SOUTHWEST AROUND 15 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....SOUTHWEST AROUND 15 MPH.
MIXING HEIGHT.......3400-5400 FT AGL UNTIL 2400, THEN 200-400 FT
AGL.
SMOKE DISPERSAL.....FAIR TO GOOD UNTIL 2400, THEN POOR.
MONDAY
SKY/WEATHER.........MOSTLY SUNNY THEN BECOMING PARTLY CLOUDY.
ISOLATED SHOWERS AND THUNDERSTORMS LATE IN THE
AFTERNOON. CHANCE OF PRECIPITATION 20 PERCENT.
CHANCE OF THUNDER...10 PERCENT.
MAX TEMPERATURE.....67-72.
24 HR TREND......2 DEGREES WARMER.
MIN HUMIDITY........23-29 PERCENT.
24 HR TREND......1 PERCENT DRIER.
20-FOOT WINDS.......SOUTHWEST WINDS 10 TO 15 MPH UNTIL 1500, THEN
WEST AROUND 20 MPH. GUSTS UP TO 35 MPH.
RIDGE TOP WINDS.....SOUTHWEST AROUND 20 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....SOUTHWEST AROUND 20 MPH UNTIL 1200, THEN AROUND
30 MPH.
MIXING HEIGHT.......1200-3200 FT AGL UNTIL 1200, THEN 5800-7800 FT
AGL.
SMOKE DISPERSAL.....POOR TO FAIR UNTIL 1200, THEN EXCELLENT.
FORECAST DAYS 3 THROUGH 7...
MONDAY NIGHT
PARTLY CLOUDY. ISOLATED SHOWERS AND THUNDERSTORMS
IN THE EVENING. LOWS IN THE LOWER 40S. WINDS GENERALLY LESS THAN
10 MPH.
TUESDAY
PARTLY CLOUDY WITH SCATTERED SHOWERS AND ISOLATED
THUNDERSTORMS. LOWS IN THE LOWER 40S. HIGHS IN THE LOWER 60S.
WINDS GENERALLY LESS THAN 10 MPH.
WEDNESDAY
MOSTLY CLEAR. ISOLATED SHOWERS AND THUNDERSTORMS.
LOWS IN THE LOWER 40S. HIGHS IN THE LOWER 60S. WINDS GENERALLY
LESS THAN 10 MPH.
THURSDAY
CLEAR. LOWS IN THE LOWER 40S. HIGHS IN THE UPPER 60S.
WINDS GENERALLY LESS THAN 10 MPH.
FRIDAY
PARTLY CLOUDY. LOWS IN THE UPPER 40S. HIGHS AROUND 70.
SATURDAY
PARTLY CLOUDY. ISOLATED SHOWERS AND THUNDERSTORMS IN
THE AFTERNOON. HIGHS IN THE UPPER 60S.
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