541
FNUS55 KRIW 151903
FWFRIW
FIRE WEATHER PLANNING FORECAST FOR WESTERN AND CENTRAL WYOMING
NATIONAL WEATHER SERVICE RIVERTON WY
103 PM MDT MON SEP 15 2025
DISCUSSION
...YELLOWSTONE NP AND TETON DISPATCH AREAS (INCLUDES FIRE WEATHER
ZONES 140...414...415...AND 416)...
SHOWER AND THUNDERSTORM CHANCES CONTINUE THROUGH THE REST OF TODAY.
DRIER AIR TONIGHT WILL LIMIT CHANCES ACROSS CENTRAL WYOMING, WITH
PRECIPITATION CHANCES CONTINUING OVER ZONE 140 OVERNIGHT. CHANCES
(15%-40%) INCREASE BY LATE MORNING TUESDAY, WHICH CONTINUE THROUGH
THE AFTERNOON. WETTING RAIN CHANCES WILL MAINLY BE LIMITED TO ZONES
140 AND 416. SNOW LEVELS AS LOW AS 9000FT THROUGH TUESDAY. TUESDAY
HAS SIMILAR TEMPERATURES AND RHS TO TODAY, WITH SLIGHTLY DRIER RHS
FOR ZONES 414 AND 415.
..CODY DISPATCH AREA (INCLUDES FIRE WEATHER ZONES 275...276
282...283...285...286...287...288...AND 289)...
SHOWER AND THUNDERSTORM CHANCES CONTINUE THROUGH LATE THIS EVENING.
DRIER AIR LIMITS CHANCES ACROSS MUCH OF THE AREA TONIGHT, THOUGH
SOME ISOLATED SHOWERS ARE POSSIBLE, ESPECIALLY ACROSS FAR NORTHERN
ZONES. CHANCES INCREASE ACROSS FAR NORTHERN ZONES AND FAR SOUTHERN
ZONES TUESDAY MORNING, WITH AT LEAST A 15% CHANCE ACROSS ALL ZONES
TUESDAY AFTERNOON. WETTING RAINS ARE LIKELY TUESDAY, LOWEST CHANCES
IN THE CENTER OF BASINS. SNOW LEVELS AS LOW AS 9000FT THROUGH
TUESDAY. TUESDAY TRENDS COOLER, WITH HIGHER RHS.
..CASPER DISPATCH AREA (INCLUDES FIRE WEATHER ZONES 277...278
279...280...281...285...289...AND 300)...
SHOWER AND THUNDERSTORM CHANCES CONTINUE THROUGH LATE THIS EVENING,
RAIN CHANCES CONTINUE OVERNIGHT ACROSS (ROUGHLY) ZONES 279, 280,
289, AND 300. SHOWER AND THUNDERSTORM CHANCES INCREASE ACROSS ALL
ZONES LATE TUESDAY MORNING THROUGH THE AFTERNOON. BEST RAIN CHANCES
AND CHANCES FOR A WETTING RAIN WILL BE FURTHER EAST, LIKE ZONES 280,
281, 289, AND 300. THE RAIN, AND WETTING RAIN, CHANCES ARE LOWEST
FOR ZONES 277 AND 278. TUESDAY TRENDS 5 TO 12 DEGREES COOLER, WITH
MINIMUM RHS TRENDING UP TO 20 PERCENT HIGH FOR MOST OF THE AREA,
AROUND 30 PERCENT HIGHER FOR ZONES 280, 281, AND 300.
..THUNDERSTORMS IMPLY STRONG GUSTY AND ERRATIC WINDS
WYZ280-162115-
NATRONA COUNTY/CASPER BLM-
INCLUDING THE CITIES OF CASPER AND MIDWEST
103 PM MDT MON SEP 15 2025
THIS AFTERNOON
SKY/WEATHER.........PARTLY CLOUDY. ISOLATED SHOWERS AND
THUNDERSTORMS THROUGH THE DAY. SOME
THUNDERSTORMS MAY BE SEVERE. CHANCE OF
PRECIPITATION 20 PERCENT.
CHANCE OF THUNDER...20 PERCENT.
MAX TEMPERATURE.....74-79.
24 HR TREND......2 DEGREES WARMER.
MIN HUMIDITY........22-28 PERCENT.
24 HR TREND......5 PERCENT WETTER.
20-FOOT WINDS.......WEST WINDS AROUND 20 MPH WITH GUSTS TO AROUND
35 MPH.
RIDGE TOP WINDS.....WEST AROUND 25 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....WEST AROUND 25 MPH.
MIXING HEIGHT.......8200-10200 FT AGL.
SMOKE DISPERSAL.....EXCELLENT.
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY. ISOLATED THUNDERSTORMS IN THE
EVENING. ISOLATED SHOWERS THROUGH THE NIGHT.
SOME THUNDERSTORMS MAY BE SEVERE EARLY IN THE
EVENING. SOME THUNDERSTORMS MAY PRODUCE GUSTY
WINDS LATE IN THE EVENING. CHANCE OF
PRECIPITATION 20 PERCENT.
CHANCE OF THUNDER...20 PERCENT.
MIN TEMPERATURE.....43-48.
24 HR TREND......5 DEGREES COOLER.
MAX HUMIDITY........82-88 PERCENT.
24 HR TREND......36 PERCENT WETTER.
HUMIDITY RECOVERY...EXCELLENT.
20-FOOT WINDS.......NORTH WINDS 10 TO 15 MPH WITH GUSTS TO AROUND
35 MPH UNTIL 0300, THEN DOWNSLOPE/DOWNVALLEY
4-7 MPH.
RIDGE TOP WINDS.....NORTH AROUND 20 MPH UNTIL 2400, THEN NORTHWEST
AROUND 10 MPH.
CHC OF WETTING RAIN.LESS THAN 5 PERCENT.
TRANSPORT WINDS.....NORTH AROUND 20 MPH UNTIL 2400, THEN AROUND 10
MPH.
MIXING HEIGHT.......2200-4200 FT AGL UNTIL 2400, THEN 400-800 FT
AGL.
SMOKE DISPERSAL.....FAIR TO GOOD UNTIL 2400, THEN POOR.
TUESDAY
SKY/WEATHER.........MOSTLY CLOUDY THEN BECOMING PARTLY CLOUDY.
ISOLATED SHOWERS EARLY IN THE MORNING, THEN
SCATTERED SHOWERS. ISOLATED THUNDERSTORMS IN
THE AFTERNOON. SOME THUNDERSTORMS MAY PRODUCE
GUSTY WINDS IN THE AFTERNOON. CHANCE OF
PRECIPITATION 50 PERCENT.
CHANCE OF THUNDER...20 PERCENT.
MAX TEMPERATURE.....62-67.
24 HR TREND......11 DEGREES COOLER.
MIN HUMIDITY........49-55 PERCENT.
24 HR TREND......27 PERCENT WETTER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH UNTIL 0900, THEN
NORTHEAST AROUND 10 MPH. GUSTS UP TO 20 MPH.
RIDGE TOP WINDS.....NORTHEAST 10 TO 15 MPH.
CHC OF WETTING RAIN.ZERO PERCENT UNTIL 1200, THEN 20 PERCENT.
TRANSPORT WINDS.....NORTHEAST 10 TO 15 MPH.
MIXING HEIGHT.......400-2200 FT AGL UNTIL 1200, THEN 2600-4600 FT
AGL.
SMOKE DISPERSAL.....POOR TO FAIR.
TUESDAY NIGHT
SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING CLOUDY. SCATTERED
THUNDERSTORMS IN THE EVENING. SHOWERS LIKELY
THROUGH THE NIGHT. SLIGHT CHANCE OF
THUNDERSTORMS AFTER MIDNIGHT. SOME
THUNDERSTORMS MAY PRODUCE GUSTY WINDS EARLY IN
THE EVENING. SOME THUNDERSTORMS MAY PRODUCE
GUSTY WINDS LATE IN THE EVENING. CHANCE OF
PRECIPITATION 70 PERCENT.
CHANCE OF THUNDER...30 PERCENT.
MIN TEMPERATURE.....45-50.
24 HR TREND......2 DEGREES WARMER.
MAX HUMIDITY........88-94 PERCENT.
24 HR TREND......2 PERCENT WETTER.
HUMIDITY RECOVERY...EXCELLENT.
20-FOOT WINDS.......NORTH WINDS AROUND 10 MPH AND GUSTY.
RIDGE TOP WINDS.....NORTH AROUND 15 MPH.
CHC OF WETTING RAIN.40 PERCENT UNTIL 2400, THEN 60 PERCENT.
TRANSPORT WINDS.....NORTHEAST 10 TO 15 MPH.
MIXING HEIGHT.......1200-3200 FT AGL UNTIL 2400, THEN 600-1200 FT
AGL.
SMOKE DISPERSAL.....POOR.
WEDNESDAY
SKY/WEATHER.........MOSTLY CLOUDY. SHOWERS LIKELY AND SLIGHT CHANCE
OF THUNDERSTORMS. CHANCE OF PRECIPITATION 70
PERCENT.
CHANCE OF THUNDER...20 PERCENT.
MAX TEMPERATURE.....58-63.
24 HR TREND......4 DEGREES COOLER.
MIN HUMIDITY........62-68 PERCENT.
24 HR TREND......13 PERCENT WETTER.
20-FOOT WINDS.......NORTH WINDS AROUND 10 MPH WITH HIGHER GUSTS.
RIDGE TOP WINDS.....NORTH AROUND 15 MPH.
CHC OF WETTING RAIN.67 PERCENT.
TRANSPORT WINDS.....NORTH AROUND 15 MPH.
MIXING HEIGHT.......1200-3200 FT AGL UNTIL 1200, THEN 3800-4600 FT
AGL.
SMOKE DISPERSAL.....POOR TO FAIR.
FORECAST DAYS 3 THROUGH 7...
WEDNESDAY NIGHT
MOSTLY CLOUDY. CHANCE OF SHOWERS AND SLIGHT
CHANCE OF THUNDERSTORMS IN THE EVENING, THEN SLIGHT CHANCE OF
SHOWERS AFTER MIDNIGHT. LOWS IN THE MID 40S. WINDS GENERALLY LESS
THAN 10 MPH.
THURSDAY THROUGH FRIDAY
MOSTLY CLEAR. LOWS 41 TO 46. HIGHS
67 TO 72. WINDS GENERALLY LESS THAN 10 MPH.
SATURDAY
MOSTLY CLEAR. LOWS IN THE UPPER 40S. HIGHS IN THE
UPPER 70S. WEST WINDS AROUND 10 MPH.
SUNDAY THROUGH MONDAY
MOSTLY CLEAR. LOWS IN THE MID 40S. HIGHS
73 TO 78.
WYZ283-162115-
UPPER WIND RIVER BASIN/WIND RIVER BASIN-
INCLUDING THE CITIES OF CROWHEART, LANDER, RIVERTON, AND SHOSHONI
103 PM MDT MON SEP 15 2025
THIS AFTERNOON
SKY/WEATHER.........PARTLY CLOUDY. SCATTERED SHOWERS EARLY IN THE
EVENING. ISOLATED THUNDERSTORMS THROUGH THE
DAY. ISOLATED SHOWERS EARLY IN THE EVENING.
SOME THUNDERSTORMS MAY BE SEVERE. CHANCE OF
PRECIPITATION 50 PERCENT.
CHANCE OF THUNDER...20 PERCENT.
MAX TEMPERATURE.....68-73.
24 HR TREND......2 DEGREES COOLER.
MIN HUMIDITY........30-36 PERCENT.
24 HR TREND......8 PERCENT WETTER.
20-FOOT WINDS.......NORTHWEST WINDS AROUND 20 MPH WITH GUSTS TO
AROUND 30 MPH.
RIDGE TOP WINDS.....NORTHWEST AROUND 25 MPH.
CHC OF WETTING RAIN.10 PERCENT.
TRANSPORT WINDS.....WEST AROUND 25 MPH.
MIXING HEIGHT.......6400-8400 FT AGL.
SMOKE DISPERSAL.....VERY GOOD TO EXCELLENT.
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY. ISOLATED SHOWERS EARLY IN THE
EVENING. ISOLATED THUNDERSTORMS EARLY IN THE
EVENING. SOME THUNDERSTORMS MAY BE SEVERE.
CHANCE OF PRECIPITATION 20 PERCENT.
CHANCE OF THUNDER...10 PERCENT.
MIN TEMPERATURE.....38-43.
24 HR TREND......7 DEGREES COOLER.
MAX HUMIDITY........75-81 PERCENT.
24 HR TREND......11 PERCENT WETTER.
HUMIDITY RECOVERY...EXCELLENT.
20-FOOT WINDS.......NORTHWEST WINDS 10 TO 15 MPH WITH GUSTS TO
AROUND 30 MPH UNTIL 2400, THEN
DOWNSLOPE/DOWNVALLEY 4-7 MPH.
RIDGE TOP WINDS.....NORTHWEST 10 TO 15 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....NORTH 10 TO 15 MPH.
MIXING HEIGHT.......2000-4000 FT AGL UNTIL 2400, THEN 400-800 FT
AGL.
SMOKE DISPERSAL.....FAIR TO GOOD UNTIL 2400, THEN POOR.
TUESDAY
SKY/WEATHER.........PARTLY CLOUDY. ISOLATED SHOWERS EARLY IN THE
MORNING. ISOLATED THUNDERSTORMS IN THE
AFTERNOON. SCATTERED SHOWERS LATE IN THE
AFTERNOON. SOME THUNDERSTORMS MAY PRODUCE GUSTY
WINDS IN THE AFTERNOON. CHANCE OF PRECIPITATION
50 PERCENT.
CHANCE OF THUNDER...20 PERCENT.
MAX TEMPERATURE.....62-67.
24 HR TREND......7 DEGREES COOLER.
MIN HUMIDITY........48-54 PERCENT.
24 HR TREND......16 PERCENT WETTER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH UNTIL 1500, THEN
NORTHEAST AROUND 10 MPH WITH HIGHER GUSTS.
RIDGE TOP WINDS.....NORTH 10 TO 15 MPH.
CHC OF WETTING RAIN.ZERO PERCENT UNTIL 1200, THEN 10 PERCENT.
TRANSPORT WINDS.....NORTHEAST 10 TO 15 MPH.
MIXING HEIGHT.......1000-3000 FT AGL UNTIL 1200, THEN 4000-6000 FT
AGL.
SMOKE DISPERSAL.....POOR TO FAIR.
TUESDAY NIGHT
SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY CLOUDY.
ISOLATED THUNDERSTORMS IN THE EVENING.
SCATTERED SHOWERS THROUGH THE NIGHT. SOME
THUNDERSTORMS MAY PRODUCE GUSTY WINDS IN THE
EVENING. CHANCE OF PRECIPITATION 50 PERCENT.
CHANCE OF THUNDER...20 PERCENT.
MIN TEMPERATURE.....41-46.
24 HR TREND......2 DEGREES WARMER.
MAX HUMIDITY........82-88 PERCENT.
24 HR TREND......6 PERCENT WETTER.
HUMIDITY RECOVERY...EXCELLENT.
20-FOOT WINDS.......NORTH WINDS AROUND 10 MPH AND GUSTY UNTIL 2400,
THEN DOWNSLOPE/DOWNVALLEY 4-7 MPH.
RIDGE TOP WINDS.....NORTH 10 TO 15 MPH.
CHC OF WETTING RAIN.22 PERCENT.
TRANSPORT WINDS.....NORTH 10 TO 15 MPH.
MIXING HEIGHT.......1800-3800 FT AGL UNTIL 2400, THEN 600-1000 FT
AGL.
SMOKE DISPERSAL.....POOR.
WEDNESDAY
SKY/WEATHER.........PARTLY CLOUDY. CHANCE OF SHOWERS THROUGH THE
DAY. SLIGHT CHANCE OF THUNDERSTORMS IN THE
AFTERNOON. CHANCE OF PRECIPITATION 50 PERCENT.
CHANCE OF THUNDER...10 PERCENT.
MAX TEMPERATURE.....62-67.
24 HR TREND......UNCHANGED.
MIN HUMIDITY........50-56 PERCENT.
24 HR TREND......4 PERCENT WETTER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH UNTIL 1500, THEN
NORTHEAST AROUND 10 MPH. GUSTS UP TO 15 MPH.
RIDGE TOP WINDS.....NORTH AROUND 10 MPH.
CHC OF WETTING RAIN.25 PERCENT UNTIL 1200, THEN 10 PERCENT.
TRANSPORT WINDS.....NORTH AROUND 10 MPH.
MIXING HEIGHT.......1200-3200 FT AGL UNTIL 1200, THEN 4200-6200 FT
AGL.
SMOKE DISPERSAL.....POOR TO FAIR.
FORECAST DAYS 3 THROUGH 7...
WEDNESDAY NIGHT
PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS IN THE
EVENING. LOWS IN THE MID 40S. WINDS GENERALLY LESS THAN 10 MPH.
THURSDAY THROUGH SATURDAY
MOSTLY CLEAR. LOWS 43 TO 48. HIGHS
72 TO 77. WEST WINDS AROUND 10 MPH.
SUNDAY
MOSTLY CLEAR. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS IN THE MID 40S. HIGHS IN THE UPPER 70S.
MONDAY
MOSTLY SUNNY. HIGHS IN THE MID 70S.
WYZ285-162115-
SOUTH BIGHORN MOUNTAINS-
103 PM MDT MON SEP 15 2025
THIS AFTERNOON
SKY/WEATHER.........PARTLY CLOUDY. SCATTERED SHOWERS AND ISOLATED
THUNDERSTORMS. SOME THUNDERSTORMS MAY BE
SEVERE. CHANCE OF PRECIPITATION 50 PERCENT.
CHANCE OF THUNDER...20 PERCENT.
MAX TEMPERATURE.....64-69.
24 HR TREND......1 DEGREE COOLER.
MIN HUMIDITY........32-38 PERCENT.
24 HR TREND......10 PERCENT WETTER.
20-FOOT WINDS.......WEST WINDS AROUND 20 MPH WITH GUSTS TO AROUND
40 MPH.
RIDGE TOP WINDS.....WEST AROUND 25 MPH.
CHC OF WETTING RAIN.25 PERCENT.
TRANSPORT WINDS.....WEST AROUND 25 MPH.
MIXING HEIGHT.......4200-6200 FT AGL.
SMOKE DISPERSAL.....GOOD TO VERY GOOD.
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY. ISOLATED THUNDERSTORMS EARLY IN
THE EVENING. ISOLATED SHOWERS IN THE EVENING,
THEN ISOLATED THUNDERSTORMS LATE IN THE
EVENING. SOME THUNDERSTORMS MAY BE SEVERE EARLY
IN THE EVENING. SOME THUNDERSTORMS MAY PRODUCE
GUSTY WINDS LATE IN THE EVENING. CHANCE OF
PRECIPITATION 20 PERCENT.
CHANCE OF THUNDER...20 PERCENT.
MIN TEMPERATURE.....39-44.
24 HR TREND......8 DEGREES COOLER.
MAX HUMIDITY........82-88 PERCENT.
24 HR TREND......32 PERCENT WETTER.
HUMIDITY RECOVERY...EXCELLENT.
20-FOOT WINDS.......NORTHWEST WINDS 10 TO 15 MPH WITH GUSTS TO
AROUND 30 MPH UNTIL 0300, THEN
DOWNSLOPE/DOWNVALLEY 4-7 MPH.
RIDGE TOP WINDS.....NORTHWEST AROUND 20 MPH UNTIL 2400, THEN AROUND
10 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....NORTHWEST AROUND 20 MPH UNTIL 2400, THEN NORTH
AROUND 10 MPH.
MIXING HEIGHT.......200-2000 FT AGL.
SMOKE DISPERSAL.....POOR.
TUESDAY
SKY/WEATHER.........MOSTLY CLOUDY THEN BECOMING PARTLY CLOUDY.
ISOLATED SHOWERS IN THE MORNING. SCATTERED
SHOWERS AND ISOLATED THUNDERSTORMS IN THE
AFTERNOON. SOME THUNDERSTORMS MAY PRODUCE GUSTY
WINDS IN THE AFTERNOON. CHANCE OF PRECIPITATION
50 PERCENT.
CHANCE OF THUNDER...20 PERCENT.
MAX TEMPERATURE.....57-62.
24 HR TREND......9 DEGREES COOLER.
MIN HUMIDITY........52-58 PERCENT.
24 HR TREND......23 PERCENT WETTER.
20-FOOT WINDS.......NORTH WINDS AROUND 10 MPH UNTIL 0900, THEN
NORTHEAST. GUSTS UP TO 15 MPH.
RIDGE TOP WINDS.....NORTHEAST AROUND 15 MPH.
CHC OF WETTING RAIN.ZERO PERCENT UNTIL 1200, THEN 35 PERCENT.
TRANSPORT WINDS.....EAST AROUND 15 MPH.
MIXING HEIGHT.......400-2400 FT AGL UNTIL 1200, THEN 2600-4400 FT
AGL.
SMOKE DISPERSAL.....POOR.
TUESDAY NIGHT
SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY CLOUDY.
SCATTERED SHOWERS AND ISOLATED THUNDERSTORMS IN
THE EVENING, THEN SHOWERS LIKELY AFTER
MIDNIGHT. SOME THUNDERSTORMS MAY PRODUCE GUSTY
WINDS IN THE EVENING. CHANCE OF PRECIPITATION
70 PERCENT.
CHANCE OF THUNDER...20 PERCENT.
MIN TEMPERATURE.....41-46.
24 HR TREND......2 DEGREES WARMER.
MAX HUMIDITY........82-88 PERCENT.
24 HR TREND......2 PERCENT WETTER.
HUMIDITY RECOVERY...EXCELLENT.
20-FOOT WINDS.......NORTH WINDS AROUND 10 MPH UNTIL 0300, THEN
DOWNSLOPE/DOWNVALLEY 4-7 MPH. GUSTS UP TO 20
MPH.
RIDGE TOP WINDS.....NORTH 10 TO 15 MPH.
CHC OF WETTING RAIN.27 PERCENT.
TRANSPORT WINDS.....NORTH 10 TO 15 MPH.
MIXING HEIGHT.......800-2800 FT AGL UNTIL 2400, THEN 200-800 FT
AGL.
SMOKE DISPERSAL.....POOR.
WEDNESDAY
SKY/WEATHER.........MOSTLY CLOUDY THEN BECOMING PARTLY CLOUDY.
SHOWERS LIKELY THROUGH THE DAY. SLIGHT CHANCE
OF THUNDERSTORMS IN THE AFTERNOON. CHANCE OF
PRECIPITATION 70 PERCENT.
CHANCE OF THUNDER...20 PERCENT.
MAX TEMPERATURE.....55-60.
24 HR TREND......2 DEGREES COOLER.
MIN HUMIDITY........60-66 PERCENT.
24 HR TREND......7 PERCENT WETTER.
20-FOOT WINDS.......NORTH WINDS AROUND 10 MPH AND GUSTY.
RIDGE TOP WINDS.....NORTH AROUND 15 MPH.
CHC OF WETTING RAIN.47 PERCENT.
TRANSPORT WINDS.....NORTH AROUND 15 MPH.
MIXING HEIGHT.......800-2800 FT AGL UNTIL 1200, THEN 2800-4400 FT
AGL.
SMOKE DISPERSAL.....POOR TO FAIR.
FORECAST DAYS 3 THROUGH 7...
WEDNESDAY NIGHT
PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE EVENING. LOWS IN THE MID 40S. WINDS
GENERALLY LESS THAN 10 MPH.
THURSDAY
MOSTLY CLEAR. LOWS IN THE LOWER 40S. HIGHS IN THE
LOWER 60S. WINDS GENERALLY LESS THAN 10 MPH.
FRIDAY
CLEAR. LOWS IN THE UPPER 40S. HIGHS IN THE MID 60S.
WINDS GENERALLY LESS THAN 10 MPH.
SATURDAY
MOSTLY CLEAR. LOWS IN THE UPPER 40S. HIGHS IN THE
LOWER 70S. WEST WINDS AROUND 10 MPH.
SUNDAY THROUGH MONDAY
MOSTLY CLEAR. LOWS IN THE MID 40S. HIGHS
66 TO 71.
WYZ281-162115-
JOHNSON COUNTY/CASPER BLM-
INCLUDING THE CITIES OF BUFFALO AND KAYCEE
103 PM MDT MON SEP 15 2025
THIS AFTERNOON
SKY/WEATHER.........PARTLY CLOUDY. SCATTERED SHOWERS AND ISOLATED
THUNDERSTORMS. SOME THUNDERSTORMS MAY BE
SEVERE. CHANCE OF PRECIPITATION 50 PERCENT.
CHANCE OF THUNDER...20 PERCENT.
MAX TEMPERATURE.....70-75.
24 HR TREND......UNCHANGED.
MIN HUMIDITY........30-36 PERCENT.
24 HR TREND......6 PERCENT WETTER.
20-FOOT WINDS.......NORTHWEST WINDS AROUND 15 MPH WITH GUSTS TO
AROUND 40 MPH.
RIDGE TOP WINDS.....NORTHWEST AROUND 20 MPH.
CHC OF WETTING RAIN.15 PERCENT.
TRANSPORT WINDS.....WEST AROUND 20 MPH.
MIXING HEIGHT.......5400-7400 FT AGL.
SMOKE DISPERSAL.....VERY GOOD.
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY. SCATTERED SHOWERS AND ISOLATED
THUNDERSTORMS IN THE EVENING, THEN ISOLATED
SHOWERS AFTER MIDNIGHT. SOME THUNDERSTORMS MAY
BE SEVERE EARLY IN THE EVENING. SOME
THUNDERSTORMS MAY PRODUCE GUSTY WINDS LATE IN
THE EVENING. CHANCE OF PRECIPITATION 50
PERCENT.
CHANCE OF THUNDER...20 PERCENT.
MIN TEMPERATURE.....44-49.
24 HR TREND......4 DEGREES COOLER.
MAX HUMIDITY........81-87 PERCENT.
24 HR TREND......31 PERCENT WETTER.
HUMIDITY RECOVERY...EXCELLENT.
20-FOOT WINDS.......NORTH WINDS 10 TO 15 MPH WITH GUSTS TO AROUND
25 MPH UNTIL 2400, THEN DOWNSLOPE/DOWNVALLEY
4-7 MPH.
RIDGE TOP WINDS.....NORTHWEST 10 TO 15 MPH.
CHC OF WETTING RAIN.LESS THAN 5 PERCENT.
TRANSPORT WINDS.....NORTH 10 TO 15 MPH.
MIXING HEIGHT.......400-2400 FT AGL.
SMOKE DISPERSAL.....POOR.
TUESDAY
SKY/WEATHER.........MOSTLY CLOUDY. ISOLATED SHOWERS EARLY IN THE
MORNING. SCATTERED SHOWERS LATE IN THE MORNING.
ISOLATED THUNDERSTORMS IN THE AFTERNOON. SOME
THUNDERSTORMS MAY PRODUCE GUSTY WINDS IN THE
AFTERNOON. CHANCE OF PRECIPITATION 50 PERCENT.
CHANCE OF THUNDER...20 PERCENT.
MAX TEMPERATURE.....61-66.
24 HR TREND......11 DEGREES COOLER.
MIN HUMIDITY........57-63 PERCENT.
24 HR TREND......26 PERCENT WETTER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH UNTIL 1200, THEN NORTH
AROUND 10 MPH. GUSTS UP TO 20 MPH.
RIDGE TOP WINDS.....NORTH 10 TO 15 MPH.
CHC OF WETTING RAIN.ZERO PERCENT UNTIL 1200, THEN 25 PERCENT.
TRANSPORT WINDS.....NORTH 10 TO 15 MPH.
MIXING HEIGHT.......600-2600 FT AGL UNTIL 1200, THEN 2600-4200 FT
AGL.
SMOKE DISPERSAL.....POOR TO FAIR.
TUESDAY NIGHT
SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY CLOUDY.
ISOLATED THUNDERSTORMS IN THE EVENING.
SCATTERED SHOWERS THROUGH THE NIGHT. SOME
THUNDERSTORMS MAY PRODUCE GUSTY WINDS IN THE
EVENING. CHANCE OF PRECIPITATION 50 PERCENT.
CHANCE OF THUNDER...20 PERCENT.
MIN TEMPERATURE.....46-51.
24 HR TREND......2 DEGREES WARMER.
MAX HUMIDITY........82-88 PERCENT.
24 HR TREND......2 PERCENT DRIER.
HUMIDITY RECOVERY...EXCELLENT.
20-FOOT WINDS.......NORTH WINDS AROUND 10 MPH WITH GUSTS TO AROUND
25 MPH UNTIL 2400, THEN DOWNSLOPE/DOWNVALLEY
4-7 MPH.
RIDGE TOP WINDS.....NORTHWEST 10 TO 15 MPH.
CHC OF WETTING RAIN.25 PERCENT.
TRANSPORT WINDS.....NORTH 10 TO 15 MPH.
MIXING HEIGHT.......1200-3200 FT AGL UNTIL 2400, THEN 400-800 FT
AGL.
SMOKE DISPERSAL.....POOR.
WEDNESDAY
SKY/WEATHER.........MOSTLY CLOUDY. SHOWERS LIKELY THROUGH THE DAY.
SLIGHT CHANCE OF THUNDERSTORMS IN THE
AFTERNOON. CHANCE OF PRECIPITATION 70 PERCENT.
CHANCE OF THUNDER...20 PERCENT.
MAX TEMPERATURE.....60-65.
24 HR TREND......2 DEGREES COOLER.
MIN HUMIDITY........64-70 PERCENT.
24 HR TREND......9 PERCENT WETTER.
20-FOOT WINDS.......NORTH WINDS 10 TO 15 MPH WITH HIGHER GUSTS.
RIDGE TOP WINDS.....NORTH AROUND 15 MPH.
CHC OF WETTING RAIN.40 PERCENT UNTIL 1200, THEN 55 PERCENT.
TRANSPORT WINDS.....NORTH 15 TO 20 MPH.
MIXING HEIGHT.......1200-3200 FT AGL UNTIL 1200, THEN 3600-5000 FT
AGL.
SMOKE DISPERSAL.....POOR TO FAIR.
FORECAST DAYS 3 THROUGH 7...
WEDNESDAY NIGHT
PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE EVENING. LOWS IN THE MID 40S. WINDS
GENERALLY LESS THAN 10 MPH.
THURSDAY THROUGH FRIDAY
MOSTLY CLEAR. LOWS 43 TO 48. HIGHS
68 TO 73. WINDS GENERALLY LESS THAN 10 MPH.
SATURDAY
MOSTLY CLEAR. LOWS AROUND 50. HIGHS IN THE UPPER 70S.
WINDS GENERALLY LESS THAN 10 MPH.
SUNDAY
MOSTLY CLEAR. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS IN THE UPPER 40S. HIGHS IN THE UPPER 70S.
MONDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 70S.
WYZ282-162115-
SOUTH BIGHORN BASIN/WORLAND BLM-
INCLUDING THE CITIES OF TEN SLEEP, THERMOPOLIS, AND WORLAND
103 PM MDT MON SEP 15 2025
THIS AFTERNOON
SKY/WEATHER.........PARTLY CLOUDY. NUMEROUS SHOWERS EARLY IN THE
EVENING. ISOLATED THUNDERSTORMS THROUGH THE
DAY. SCATTERED SHOWERS EARLY IN THE EVENING.
SOME THUNDERSTORMS MAY BE SEVERE. CHANCE OF
PRECIPITATION 70 PERCENT.
CHANCE OF THUNDER...20 PERCENT.
MAX TEMPERATURE.....66-71.
24 HR TREND......4 DEGREES COOLER.
MIN HUMIDITY........34-40 PERCENT.
24 HR TREND......16 PERCENT WETTER.
20-FOOT WINDS.......NORTH WINDS AROUND 15 MPH WITH GUSTS TO AROUND
35 MPH.
RIDGE TOP WINDS.....NORTH AROUND 20 MPH.
CHC OF WETTING RAIN.30 PERCENT.
TRANSPORT WINDS.....NORTHWEST AROUND 20 MPH.
MIXING HEIGHT.......2800-4800 FT AGL.
SMOKE DISPERSAL.....FAIR TO GOOD.
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY. ISOLATED THUNDERSTORMS EARLY IN
THE EVENING. ISOLATED SHOWERS IN THE EVENING.
ISOLATED THUNDERSTORMS LATE IN THE EVENING.
SOME THUNDERSTORMS MAY BE SEVERE EARLY IN THE
EVENING. SOME THUNDERSTORMS MAY PRODUCE GUSTY
WINDS LATE IN THE EVENING. CHANCE OF
PRECIPITATION 20 PERCENT.
CHANCE OF THUNDER...20 PERCENT.
MIN TEMPERATURE.....39-44.
24 HR TREND......8 DEGREES COOLER.
MAX HUMIDITY........80-86 PERCENT.
24 HR TREND......27 PERCENT WETTER.
HUMIDITY RECOVERY...EXCELLENT.
20-FOOT WINDS.......NORTH WINDS AROUND 10 MPH WITH GUSTS TO AROUND
25 MPH UNTIL 2100, THEN WEST WITH GUSTS TO
AROUND 25 MPH UNTIL 2400, THEN
DOWNSLOPE/DOWNVALLEY 4-7 MPH.
RIDGE TOP WINDS.....NORTHWEST AROUND 15 MPH UNTIL 2400, THEN
SOUTHWEST.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....NORTHWEST 10 TO 15 MPH.
MIXING HEIGHT.......400-2400 FT AGL.
SMOKE DISPERSAL.....POOR.
TUESDAY
SKY/WEATHER.........PARTLY CLOUDY. ISOLATED SHOWERS EARLY IN THE
AFTERNOON. ISOLATED THUNDERSTORMS IN THE
AFTERNOON. SCATTERED SHOWERS LATE IN THE
AFTERNOON. SOME THUNDERSTORMS MAY PRODUCE GUSTY
WINDS IN THE AFTERNOON. CHANCE OF PRECIPITATION
50 PERCENT.
CHANCE OF THUNDER...20 PERCENT.
MAX TEMPERATURE.....60-65.
24 HR TREND......6 DEGREES COOLER.
MIN HUMIDITY........47-53 PERCENT.
24 HR TREND......9 PERCENT WETTER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH UNTIL 1200, THEN NORTH
AROUND 10 MPH. GUSTS UP TO 15 MPH.
RIDGE TOP WINDS.....WEST AROUND 10 MPH UNTIL 1200, THEN NORTH.
CHC OF WETTING RAIN.ZERO PERCENT UNTIL 1200, THEN 10 PERCENT.
TRANSPORT WINDS.....NORTH 10 TO 15 MPH.
MIXING HEIGHT.......800-2800 FT AGL UNTIL 1200, THEN 3600-5600 FT
AGL.
SMOKE DISPERSAL.....POOR TO FAIR.
TUESDAY NIGHT
SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY CLOUDY.
ISOLATED THUNDERSTORMS IN THE EVENING.
SCATTERED SHOWERS THROUGH THE NIGHT. SOME
THUNDERSTORMS MAY PRODUCE GUSTY WINDS IN THE
EVENING. CHANCE OF PRECIPITATION 50 PERCENT.
CHANCE OF THUNDER...20 PERCENT.
MIN TEMPERATURE.....41-46.
24 HR TREND......3 DEGREES WARMER.
MAX HUMIDITY........80-86 PERCENT.
24 HR TREND......1 PERCENT DRIER.
HUMIDITY RECOVERY...EXCELLENT.
20-FOOT WINDS.......NORTH WINDS AROUND 10 MPH UNTIL 2400, THEN
DOWNSLOPE/DOWNVALLEY 4-7 MPH. GUSTS UP TO 20
MPH.
RIDGE TOP WINDS.....NORTH AROUND 15 MPH UNTIL 2400, THEN WEST.
CHC OF WETTING RAIN.12 PERCENT.
TRANSPORT WINDS.....NORTHWEST 10 TO 15 MPH.
MIXING HEIGHT.......1600-3600 FT AGL UNTIL 2400, THEN 600-1000 FT
AGL.
SMOKE DISPERSAL.....POOR.
WEDNESDAY
SKY/WEATHER.........MOSTLY CLOUDY THEN BECOMING PARTLY CLOUDY.
CHANCE OF SHOWERS THROUGH THE DAY. SLIGHT
CHANCE OF THUNDERSTORMS LATE IN THE AFTERNOON.
CHANCE OF PRECIPITATION 50 PERCENT.
CHANCE OF THUNDER...10 PERCENT.
MAX TEMPERATURE.....60-65.
24 HR TREND......1 DEGREE WARMER.
MIN HUMIDITY........51-57 PERCENT.
24 HR TREND......3 PERCENT WETTER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH UNTIL 1200, THEN NORTH
AROUND 10 MPH. GUSTS UP TO 15 MPH.
RIDGE TOP WINDS.....NORTHWEST 10 TO 15 MPH.
CHC OF WETTING RAIN.5 PERCENT UNTIL 1200, THEN 15 PERCENT.
TRANSPORT WINDS.....NORTHWEST 10 TO 15 MPH.
MIXING HEIGHT.......1200-3200 FT AGL UNTIL 1200, THEN 4000-6000 FT
AGL.
SMOKE DISPERSAL.....POOR TO FAIR.
FORECAST DAYS 3 THROUGH 7...
WEDNESDAY THROUGH THURSDAY
MOSTLY CLEAR. LOWS 44 TO 49. HIGHS
IN THE LOWER 70S. WINDS GENERALLY LESS THAN 10 MPH.
FRIDAY
CLEAR. LOWS IN THE UPPER 40S. HIGHS IN THE MID 70S.
WINDS GENERALLY LESS THAN 10 MPH.
SATURDAY
MOSTLY CLEAR. LOWS AROUND 50. HIGHS AROUND 80. WINDS
GENERALLY LESS THAN 10 MPH.
SUNDAY
MOSTLY CLEAR. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS IN THE UPPER 40S. HIGHS IN THE UPPER 70S.
MONDAY
MOSTLY SUNNY. HIGHS IN THE MID 70S.
WYZ275-162115-
NORTH BIGHORN BASIN/WORLAND BLM-
INCLUDING THE CITIES OF GREYBULL, LOVELL, AND POWELL
103 PM MDT MON SEP 15 2025
THIS AFTERNOON
SKY/WEATHER.........PARTLY CLOUDY. NUMEROUS SHOWERS AND SCATTERED
THUNDERSTORMS. SOME THUNDERSTORMS MAY BE SEVERE
WITH GUSTY WINDS. CHANCE OF PRECIPITATION 70
PERCENT.
CHANCE OF THUNDER...30 PERCENT.
MAX TEMPERATURE.....63-68.
24 HR TREND......6 DEGREES COOLER.
MIN HUMIDITY........38-44 PERCENT.
24 HR TREND......20 PERCENT WETTER.
20-FOOT WINDS.......NORTHWEST WINDS AROUND 15 MPH WITH GUSTS TO
AROUND 30 MPH.
RIDGE TOP WINDS.....NORTHWEST AROUND 20 MPH.
CHC OF WETTING RAIN.15 PERCENT.
TRANSPORT WINDS.....NORTHWEST AROUND 20 MPH.
MIXING HEIGHT.......2400-4400 FT AGL.
SMOKE DISPERSAL.....FAIR TO GOOD.
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY. SCATTERED SHOWERS AND ISOLATED
THUNDERSTORMS IN THE EVENING. ISOLATED SHOWERS
AFTER MIDNIGHT. SOME THUNDERSTORMS MAY BE
SEVERE WITH GUSTY WINDS EARLY IN THE EVENING.
SOME THUNDERSTORMS MAY PRODUCE GUSTY WINDS LATE
IN THE EVENING. CHANCE OF PRECIPITATION 50
PERCENT.
CHANCE OF THUNDER...20 PERCENT.
MIN TEMPERATURE.....40-45.
24 HR TREND......6 DEGREES COOLER.
MAX HUMIDITY........79-85 PERCENT.
24 HR TREND......19 PERCENT WETTER.
HUMIDITY RECOVERY...EXCELLENT.
20-FOOT WINDS.......NORTHWEST WINDS 10 TO 15 MPH UNTIL 2400.
DOWNSLOPE/DOWNVALLEY 4-7 MPH AFTER 0300. GUSTS
UP TO 25 MPH.
RIDGE TOP WINDS.....NORTHWEST 10 TO 15 MPH.
CHC OF WETTING RAIN.LESS THAN 5 PERCENT.
TRANSPORT WINDS.....NORTHWEST 10 TO 15 MPH.
MIXING HEIGHT.......400-2200 FT AGL.
SMOKE DISPERSAL.....POOR.
TUESDAY
SKY/WEATHER.........PARTLY CLOUDY. ISOLATED SHOWERS EARLY IN THE
MORNING. ISOLATED SHOWERS EARLY IN THE MORNING,
THEN SCATTERED SHOWERS AND ISOLATED
THUNDERSTORMS IN THE AFTERNOON. SOME
THUNDERSTORMS MAY PRODUCE GUSTY WINDS IN THE
AFTERNOON. CHANCE OF PRECIPITATION 50 PERCENT.
CHANCE OF THUNDER...20 PERCENT.
MAX TEMPERATURE.....58-63.
24 HR TREND......4 DEGREES COOLER.
MIN HUMIDITY........52-58 PERCENT.
24 HR TREND......5 PERCENT WETTER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH UNTIL 1200, THEN
NORTHWEST AROUND 10 MPH. GUSTS UP TO 20 MPH.
RIDGE TOP WINDS.....NORTHWEST 10 TO 15 MPH.
CHC OF WETTING RAIN.ZERO PERCENT UNTIL 1200, THEN 10 PERCENT.
TRANSPORT WINDS.....NORTHWEST 10 TO 15 MPH.
MIXING HEIGHT.......600-2600 FT AGL UNTIL 1200, THEN 3400-5400 FT
AGL.
SMOKE DISPERSAL.....POOR TO FAIR.
TUESDAY NIGHT
SKY/WEATHER.........PARTLY CLOUDY. ISOLATED SHOWERS AND
THUNDERSTORMS IN THE EVENING, THEN CHANCE OF
SHOWERS AFTER MIDNIGHT. SOME THUNDERSTORMS MAY
PRODUCE GUSTY WINDS IN THE EVENING. CHANCE OF
PRECIPITATION 50 PERCENT.
CHANCE OF THUNDER...20 PERCENT.
MIN TEMPERATURE.....41-46.
24 HR TREND......3 DEGREES WARMER.
MAX HUMIDITY........80-86 PERCENT.
24 HR TREND......2 PERCENT DRIER.
HUMIDITY RECOVERY...EXCELLENT.
20-FOOT WINDS.......NORTH WINDS AROUND 10 MPH UNTIL 0300, THEN
DOWNSLOPE/DOWNVALLEY 4-7 MPH. GUSTS UP TO 20
MPH.
RIDGE TOP WINDS.....NORTH 10 TO 15 MPH.
CHC OF WETTING RAIN.LESS THAN 5 PERCENT.
TRANSPORT WINDS.....NORTH AROUND 15 MPH.
MIXING HEIGHT.......1400-3400 FT AGL UNTIL 2400, THEN 600-800 FT
AGL.
SMOKE DISPERSAL.....POOR.
WEDNESDAY
SKY/WEATHER.........PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS THROUGH
THE DAY. SLIGHT CHANCE OF THUNDERSTORMS IN THE
AFTERNOON. CHANCE OF PRECIPITATION 20 PERCENT.
CHANCE OF THUNDER...20 PERCENT.
MAX TEMPERATURE.....60-65.
24 HR TREND......2 DEGREES WARMER.
MIN HUMIDITY........49-55 PERCENT.
24 HR TREND......1 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.....NORTH AROUND 10 MPH.
CHC OF WETTING RAIN.LESS THAN 5 PERCENT.
TRANSPORT WINDS.....NORTH 10 TO 15 MPH.
MIXING HEIGHT.......1000-3000 FT AGL UNTIL 1200, THEN 3600-5200 FT
AGL.
SMOKE DISPERSAL.....POOR TO FAIR.
FORECAST DAYS 3 THROUGH 7...
WEDNESDAY THROUGH SATURDAY
MOSTLY CLEAR. LOWS 46 TO 51. HIGHS
74 TO 79. WINDS GENERALLY LESS THAN 10 MPH.
SUNDAY
MOSTLY CLEAR. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS IN THE UPPER 40S. HIGHS IN THE UPPER 70S.
MONDAY
MOSTLY SUNNY. HIGHS IN THE MID 70S.
WYZ276-162115-
CODY FOOTHILLS-
INCLUDING THE CITIES OF CLARK, CODY, AND MEETEETSE
103 PM MDT MON SEP 15 2025
THIS AFTERNOON
SKY/WEATHER.........PARTLY CLOUDY. NUMEROUS SHOWERS EARLY IN THE
EVENING. SCATTERED THUNDERSTORMS THROUGH THE
DAY. SCATTERED SHOWERS EARLY IN THE EVENING.
SOME THUNDERSTORMS MAY PRODUCE GUSTY WINDS.
CHANCE OF PRECIPITATION 70 PERCENT.
CHANCE OF THUNDER...40 PERCENT.
MAX TEMPERATURE.....62-67.
24 HR TREND......9 DEGREES COOLER.
MIN HUMIDITY........43-49 PERCENT.
24 HR TREND......23 PERCENT WETTER.
20-FOOT WINDS.......NORTH WINDS AROUND 15 MPH WITH HIGHER GUSTS.
RIDGE TOP WINDS.....NORTH AROUND 15 MPH.
CHC OF WETTING RAIN.35 PERCENT.
TRANSPORT WINDS.....NORTHWEST AROUND 20 MPH.
MIXING HEIGHT.......2400-3800 FT AGL.
SMOKE DISPERSAL.....POOR TO FAIR.
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY. SCATTERED SHOWERS AND ISOLATED
THUNDERSTORMS IN THE EVENING. ISOLATED SHOWERS
AFTER MIDNIGHT. SOME THUNDERSTORMS MAY PRODUCE
GUSTY WINDS EARLY IN THE EVENING. CHANCE OF
PRECIPITATION 50 PERCENT.
CHANCE OF THUNDER...20 PERCENT.
MIN TEMPERATURE.....42-47.
24 HR TREND......7 DEGREES COOLER.
MAX HUMIDITY........74-80 PERCENT.
24 HR TREND......12 PERCENT WETTER.
HUMIDITY RECOVERY...EXCELLENT.
20-FOOT WINDS.......NORTHWEST WINDS AROUND 10 MPH UNTIL 2100, THEN
DOWNSLOPE/DOWNVALLEY 4-7 MPH. GUSTS UP TO 20
MPH.
RIDGE TOP WINDS.....WEST 10 TO 15 MPH.
CHC OF WETTING RAIN.LESS THAN 5 PERCENT.
TRANSPORT WINDS.....WEST 10 TO 15 MPH.
MIXING HEIGHT.......800-2800 FT AGL.
SMOKE DISPERSAL.....POOR.
TUESDAY
SKY/WEATHER.........PARTLY CLOUDY. SCATTERED SHOWERS THROUGH THE
DAY. SCATTERED THUNDERSTORMS IN THE AFTERNOON.
SOME THUNDERSTORMS MAY PRODUCE GUSTY WINDS IN
THE AFTERNOON. CHANCE OF PRECIPITATION 50
PERCENT.
CHANCE OF THUNDER...30 PERCENT.
MAX TEMPERATURE.....59-64.
24 HR TREND......4 DEGREES COOLER.
MIN HUMIDITY........59-65 PERCENT.
24 HR TREND......8 PERCENT WETTER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH UNTIL 1200, THEN NORTH
AROUND 10 MPH WITH HIGHER GUSTS.
RIDGE TOP WINDS.....WEST AROUND 10 MPH UNTIL 1200, THEN NORTH.
CHC OF WETTING RAIN.5 PERCENT UNTIL 1200, THEN 25 PERCENT.
TRANSPORT WINDS.....WEST AROUND 10 MPH UNTIL 1200, THEN NORTHEAST.
MIXING HEIGHT.......1000-3000 FT AGL UNTIL 1200, THEN 3200-5200 FT
AGL.
SMOKE DISPERSAL.....POOR TO FAIR.
TUESDAY NIGHT
SKY/WEATHER.........PARTLY CLOUDY. SCATTERED SHOWERS EARLY IN THE
EVENING. ISOLATED THUNDERSTORMS IN THE EVENING.
SLIGHT CHANCE OF SHOWERS. SOME THUNDERSTORMS
MAY PRODUCE GUSTY WINDS IN THE EVENING. CHANCE
OF PRECIPITATION 50 PERCENT.
CHANCE OF THUNDER...20 PERCENT.
MIN TEMPERATURE.....44-49.
24 HR TREND......3 DEGREES WARMER.
MAX HUMIDITY........77-83 PERCENT.
24 HR TREND......UNCHANGED.
HUMIDITY RECOVERY...EXCELLENT.
20-FOOT WINDS.......NORTHWEST WINDS AROUND 10 MPH UNTIL 2400, THEN
DOWNSLOPE/DOWNVALLEY 4-7 MPH. GUSTS UP TO 20
MPH.
RIDGE TOP WINDS.....NORTHWEST 10 TO 15 MPH.
CHC OF WETTING RAIN.LESS THAN 5 PERCENT.
TRANSPORT WINDS.....NORTH 10 TO 15 MPH.
MIXING HEIGHT.......1400-3400 FT AGL UNTIL 2400, THEN 600-1200 FT
AGL.
SMOKE DISPERSAL.....POOR.
WEDNESDAY
SKY/WEATHER.........PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS THROUGH
THE DAY. SLIGHT CHANCE OF THUNDERSTORMS IN THE
AFTERNOON. CHANCE OF PRECIPITATION 20 PERCENT.
CHANCE OF THUNDER...10 PERCENT.
MAX TEMPERATURE.....62-67.
24 HR TREND......3 DEGREES WARMER.
MIN HUMIDITY........55-61 PERCENT.
24 HR TREND......5 PERCENT DRIER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH UNTIL 1200, THEN NORTH
AROUND 10 MPH. GUSTS UP TO 15 MPH.
RIDGE TOP WINDS.....NORTH 10 TO 15 MPH.
CHC OF WETTING RAIN.LESS THAN 5 PERCENT.
TRANSPORT WINDS.....NORTH 10 TO 15 MPH.
MIXING HEIGHT.......1000-3000 FT AGL UNTIL 1200, THEN 3400-4800 FT
AGL.
SMOKE DISPERSAL.....POOR TO FAIR.
FORECAST DAYS 3 THROUGH 7...
WEDNESDAY NIGHT
MOSTLY CLEAR. LOWS IN THE MID 40S. WINDS
GENERALLY LESS THAN 10 MPH.
THURSDAY
CLEAR. LOWS IN THE MID 40S. HIGHS IN THE UPPER 60S.
WINDS GENERALLY LESS THAN 10 MPH.
FRIDAY
MOSTLY CLEAR. LOWS IN THE UPPER 40S. HIGHS IN THE LOWER
70S. WINDS GENERALLY LESS THAN 10 MPH.
SATURDAY
PARTLY CLOUDY. LOWS IN THE LOWER 50S. HIGHS IN THE
MID 70S. WEST WINDS AROUND 10 MPH.
SUNDAY
PARTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS IN THE UPPER 40S. HIGHS IN THE MID 70S.
MONDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 70S.
WYZ287-162115-
OWL CREEK MOUNTAINS-
103 PM MDT MON SEP 15 2025
THIS AFTERNOON
SKY/WEATHER.........PARTLY CLOUDY. SCATTERED SHOWERS AND
THUNDERSTORMS. SOME THUNDERSTORMS MAY BE
SEVERE. CHANCE OF PRECIPITATION 50 PERCENT.
CHANCE OF THUNDER...30 PERCENT.
MAX TEMPERATURE.....62-67.
24 HR TREND......4 DEGREES COOLER.
MIN HUMIDITY........36-42 PERCENT.
24 HR TREND......14 PERCENT WETTER.
20-FOOT WINDS.......NORTHWEST WINDS AROUND 15 MPH WITH GUSTS TO
AROUND 25 MPH.
RIDGE TOP WINDS.....NORTHWEST AROUND 20 MPH.
CHC OF WETTING RAIN.40 PERCENT.
TRANSPORT WINDS.....WEST AROUND 20 MPH.
MIXING HEIGHT.......3200-4600 FT AGL.
SMOKE DISPERSAL.....FAIR TO GOOD.
TONIGHT
SKY/WEATHER.........MOSTLY CLEAR. ISOLATED SHOWERS AND
THUNDERSTORMS EARLY IN THE EVENING. SOME
THUNDERSTORMS MAY BE SEVERE. CHANCE OF
PRECIPITATION 20 PERCENT.
CHANCE OF THUNDER...20 PERCENT.
MIN TEMPERATURE.....39-44.
24 HR TREND......8 DEGREES COOLER.
MAX HUMIDITY........76-82 PERCENT.
24 HR TREND......8 PERCENT WETTER.
HUMIDITY RECOVERY...EXCELLENT.
20-FOOT WINDS.......NORTH WINDS 10 TO 15 MPH WITH GUSTS TO AROUND
30 MPH UNTIL 2400, THEN WEST WITH GUSTS TO
AROUND 15 MPH.
RIDGE TOP WINDS.....NORTH AROUND 15 MPH UNTIL 2400, THEN WEST.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....NORTH AROUND 15 MPH.
MIXING HEIGHT.......600-2600 FT AGL UNTIL 2400, THEN 200-600 FT
AGL.
SMOKE DISPERSAL.....POOR.
TUESDAY
SKY/WEATHER.........PARTLY CLOUDY. ISOLATED SHOWERS EARLY IN THE
AFTERNOON. ISOLATED THUNDERSTORMS IN THE
AFTERNOON. SCATTERED SHOWERS LATE IN THE
AFTERNOON. SOME THUNDERSTORMS MAY PRODUCE GUSTY
WINDS IN THE AFTERNOON. CHANCE OF PRECIPITATION
50 PERCENT.
CHANCE OF THUNDER...20 PERCENT.
MAX TEMPERATURE.....55-60.
24 HR TREND......7 DEGREES COOLER.
MIN HUMIDITY........55-61 PERCENT.
24 HR TREND......12 PERCENT WETTER.
20-FOOT WINDS.......NORTH WINDS AROUND 10 MPH UNTIL 1200, THEN
NORTHEAST. GUSTS UP TO 20 MPH.
RIDGE TOP WINDS.....NORTH AROUND 15 MPH.
CHC OF WETTING RAIN.ZERO PERCENT UNTIL 1200, THEN 15 PERCENT.
TRANSPORT WINDS.....NORTH AROUND 15 MPH.
MIXING HEIGHT.......600-2600 FT AGL UNTIL 1200, THEN 3200-5200 FT
AGL.
SMOKE DISPERSAL.....POOR TO FAIR.
TUESDAY NIGHT
SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY CLOUDY.
ISOLATED THUNDERSTORMS IN THE EVENING.
SCATTERED SHOWERS THROUGH THE NIGHT. SOME
THUNDERSTORMS MAY PRODUCE GUSTY WINDS IN THE
EVENING. CHANCE OF PRECIPITATION 50 PERCENT.
CHANCE OF THUNDER...20 PERCENT.
MIN TEMPERATURE.....42-47.
24 HR TREND......3 DEGREES WARMER.
MAX HUMIDITY........78-84 PERCENT.
24 HR TREND......2 PERCENT WETTER.
HUMIDITY RECOVERY...EXCELLENT.
20-FOOT WINDS.......NORTHWEST WINDS AROUND 10 MPH. GUSTS UP TO 25
MPH UNTIL 2400, THEN 15 MPH.
RIDGE TOP WINDS.....NORTHWEST AROUND 15 MPH.
CHC OF WETTING RAIN.12 PERCENT.
TRANSPORT WINDS.....NORTH AROUND 15 MPH.
MIXING HEIGHT.......1200-3200 FT AGL UNTIL 2400, THEN 400-800 FT
AGL.
SMOKE DISPERSAL.....POOR.
WEDNESDAY
SKY/WEATHER.........MOSTLY CLOUDY THEN BECOMING PARTLY CLOUDY.
CHANCE OF SHOWERS THROUGH THE DAY. SLIGHT
CHANCE OF THUNDERSTORMS LATE IN THE AFTERNOON.
CHANCE OF PRECIPITATION 40 PERCENT.
CHANCE OF THUNDER...10 PERCENT.
MAX TEMPERATURE.....56-61.
24 HR TREND......1 DEGREE WARMER.
MIN HUMIDITY........55-61 PERCENT.
24 HR TREND......UNCHANGED.
20-FOOT WINDS.......NORTH WINDS AROUND 10 MPH AND GUSTY.
RIDGE TOP WINDS.....NORTH AROUND 15 MPH.
CHC OF WETTING RAIN.5 PERCENT.
TRANSPORT WINDS.....NORTH AROUND 15 MPH.
MIXING HEIGHT.......1000-3000 FT AGL UNTIL 1200, THEN 3600-5600 FT
AGL.
SMOKE DISPERSAL.....POOR TO FAIR.
FORECAST DAYS 3 THROUGH 7...
WEDNESDAY NIGHT
MOSTLY CLEAR. LOWS IN THE MID 40S. 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 THROUGH SATURDAY
MOSTLY CLEAR. LOWS 47 TO 52. HIGHS
68 TO 73. WEST WINDS AROUND 10 MPH.
SUNDAY
MOSTLY CLEAR. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS IN THE UPPER 40S. HIGHS IN THE LOWER 70S.
MONDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 60S.
WYZ286-162115-
ABSAROKA MOUNTAINS/NORTH SHOSHONE NF-
INCLUDING THE CITY OF PAHASKA
103 PM MDT MON SEP 15 2025
THIS AFTERNOON
SKY/WEATHER.........PARTLY CLOUDY. SCATTERED SHOWERS AND
THUNDERSTORMS. SOME THUNDERSTORMS MAY PRODUCE
GUSTY WINDS. CHANCE OF PRECIPITATION 50
PERCENT.
CHANCE OF THUNDER...40 PERCENT.
MAX TEMPERATURE.....54-59.
24 HR TREND......7 DEGREES COOLER.
MIN HUMIDITY........49-55 PERCENT.
24 HR TREND......16 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.25 PERCENT.
TRANSPORT WINDS.....WEST AROUND 20 MPH.
MIXING HEIGHT.......4200-6000 FT AGL.
SMOKE DISPERSAL.....GOOD.
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY. ISOLATED THUNDERSTORMS IN THE
EVENING. SCATTERED SHOWERS THROUGH THE NIGHT.
SOME THUNDERSTORMS MAY PRODUCE GUSTY WINDS
EARLY IN THE EVENING. CHANCE OF PRECIPITATION
50 PERCENT.
CHANCE OF THUNDER...20 PERCENT.
MIN TEMPERATURE.....36-41.
24 HR TREND......5 DEGREES COOLER.
MAX HUMIDITY........76-82 PERCENT.
24 HR TREND......5 PERCENT DRIER.
HUMIDITY RECOVERY...EXCELLENT.
20-FOOT WINDS.......WEST WINDS AROUND 10 MPH WITH GUSTS TO AROUND
25 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.....WEST 10 TO 15 MPH.
MIXING HEIGHT.......1800-3800 FT AGL UNTIL 2400, THEN 400-1000 FT
AGL.
SMOKE DISPERSAL.....POOR.
TUESDAY
SKY/WEATHER.........PARTLY CLOUDY. SCATTERED SHOWERS THROUGH THE
DAY. SCATTERED THUNDERSTORMS IN THE AFTERNOON.
SOME THUNDERSTORMS MAY PRODUCE GUSTY WINDS IN
THE AFTERNOON. CHANCE OF PRECIPITATION 50
PERCENT.
CHANCE OF THUNDER...30 PERCENT.
MAX TEMPERATURE.....51-56.
24 HR TREND......3 DEGREES COOLER.
MIN HUMIDITY........64-70 PERCENT.
24 HR TREND......8 PERCENT WETTER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH UNTIL 1200, THEN
NORTHEAST AROUND 10 MPH. GUSTS UP TO 20 MPH.
RIDGE TOP WINDS.....NORTHWEST AROUND 10 MPH UNTIL 1200, THEN
NORTHEAST.
CHC OF WETTING RAIN.5 PERCENT UNTIL 1200, THEN 35 PERCENT.
TRANSPORT WINDS.....NORTHEAST 10 TO 15 MPH.
MIXING HEIGHT.......2200-4200 FT AGL.
SMOKE DISPERSAL.....POOR TO FAIR.
TUESDAY NIGHT
SKY/WEATHER.........PARTLY CLOUDY. SCATTERED SHOWERS EARLY IN THE
EVENING. ISOLATED THUNDERSTORMS IN THE EVENING.
SLIGHT CHANCE OF SHOWERS. SOME THUNDERSTORMS
MAY PRODUCE GUSTY WINDS IN THE EVENING. 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......6 PERCENT WETTER.
HUMIDITY RECOVERY...EXCELLENT.
20-FOOT WINDS.......NORTHEAST WINDS AROUND 10 MPH AND GUSTY UNTIL
2400, THEN DOWNSLOPE/DOWNVALLEY 4-7 MPH.
RIDGE TOP WINDS.....NORTH 10 TO 15 MPH.
CHC OF WETTING RAIN.LESS THAN 5 PERCENT.
TRANSPORT WINDS.....NORTHEAST 10 TO 15 MPH.
MIXING HEIGHT.......600-2600 FT AGL.
SMOKE DISPERSAL.....POOR.
WEDNESDAY
SKY/WEATHER.........PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS THROUGH
THE DAY. SLIGHT CHANCE OF THUNDERSTORMS IN THE
AFTERNOON. CHANCE OF PRECIPITATION 20 PERCENT.
CHANCE OF THUNDER...10 PERCENT.
MAX TEMPERATURE.....54-59.
24 HR TREND......4 DEGREES WARMER.
MIN HUMIDITY........55-61 PERCENT.
24 HR TREND......6 PERCENT DRIER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH UNTIL 1200, THEN
NORTHEAST AROUND 10 MPH. GUSTS UP TO 20 MPH.
RIDGE TOP WINDS.....NORTHEAST 10 TO 15 MPH.
CHC OF WETTING RAIN.LESS THAN 5 PERCENT.
TRANSPORT WINDS.....NORTHEAST 10 TO 15 MPH.
MIXING HEIGHT.......1000-3000 FT AGL UNTIL 1200, THEN 3600-5600 FT
AGL.
SMOKE DISPERSAL.....POOR TO FAIR.
FORECAST DAYS 3 THROUGH 7...
WEDNESDAY NIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 30S. WINDS
GENERALLY LESS THAN 10 MPH.
THURSDAY
CLEAR. LOWS IN THE UPPER 30S. HIGHS IN THE LOWER 60S.
WINDS GENERALLY LESS THAN 10 MPH.
FRIDAY
MOSTLY CLEAR. LOWS IN THE LOWER 40S. HIGHS IN THE LOWER
60S. WINDS GENERALLY LESS THAN 10 MPH.
SATURDAY
PARTLY CLOUDY. LOWS IN THE MID 40S. HIGHS IN THE MID
60S. WEST WINDS AROUND 10 MPH.
SUNDAY
PARTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS AROUND 40. HIGHS IN THE LOWER 60S.
MONDAY
MOSTLY SUNNY. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE LOWER 60S.
WYZ140-162115-
YELLOWSTONE NATIONAL PARK-
INCLUDING THE CITIES OF LAKE, MAMMOTH, AND OLD FAITHFUL
103 PM MDT MON SEP 15 2025
THIS AFTERNOON
SKY/WEATHER.........PARTLY CLOUDY. SCATTERED SHOWERS AND
THUNDERSTORMS. SOME THUNDERSTORMS MAY PRODUCE
GUSTY WINDS. CHANCE OF PRECIPITATION 50
PERCENT.
CHANCE OF THUNDER...30 PERCENT.
MAX TEMPERATURE.....54-59.
24 HR TREND......8 DEGREES COOLER.
MIN HUMIDITY........46-52 PERCENT.
24 HR TREND......11 PERCENT WETTER.
20-FOOT WINDS.......SOUTHWEST WINDS AROUND 15 MPH WITH HIGHER
GUSTS.
RIDGE TOP WINDS.....SOUTHWEST AROUND 20 MPH.
CHC OF WETTING RAIN.10 PERCENT.
TRANSPORT WINDS.....WEST AROUND 20 MPH.
MIXING HEIGHT.......5600-7600 FT AGL.
SMOKE DISPERSAL.....GOOD TO VERY GOOD.
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY. ISOLATED THUNDERSTORMS IN THE
EVENING. SCATTERED SHOWERS THROUGH THE NIGHT.
ISOLATED SNOW SHOWERS AFTER MIDNIGHT. PATCHY
FOG LATE IN THE EVENING. SOME THUNDERSTORMS MAY
PRODUCE GUSTY WINDS EARLY IN THE EVENING.
CHANCE OF PRECIPITATION 50 PERCENT.
CHANCE OF THUNDER...20 PERCENT.
MIN TEMPERATURE.....32-37.
24 HR TREND......4 DEGREES COOLER.
MAX HUMIDITY........84-90 PERCENT.
24 HR TREND......UNCHANGED.
HUMIDITY RECOVERY...EXCELLENT.
20-FOOT WINDS.......WEST WINDS AROUND 10 MPH UNTIL 2100, THEN
DOWNSLOPE/DOWNVALLEY 4-7 MPH. GUSTS UP TO 20
MPH.
RIDGE TOP WINDS.....NORTHWEST AROUND 10 MPH.
CHC OF WETTING RAIN.5 PERCENT.
TRANSPORT WINDS.....NORTH AROUND 10 MPH.
MIXING HEIGHT.......1800-3800 FT AGL UNTIL 2400, THEN 400-1000 FT
AGL.
SMOKE DISPERSAL.....POOR.
TUESDAY
SKY/WEATHER.........MOSTLY CLOUDY THEN BECOMING PARTLY CLOUDY.
PATCHY FOG EARLY IN THE MORNING. SCATTERED SNOW
SHOWERS IN THE MORNING. SCATTERED SHOWERS
THROUGH THE DAY. SCATTERED THUNDERSTORMS IN THE
AFTERNOON. SOME THUNDERSTORMS MAY PRODUCE GUSTY
WINDS IN THE AFTERNOON. CHANCE OF PRECIPITATION
50 PERCENT.
CHANCE OF THUNDER...30 PERCENT.
MAX TEMPERATURE.....54-59.
24 HR TREND......2 DEGREES WARMER.
MIN HUMIDITY........52-58 PERCENT.
24 HR TREND......4 PERCENT WETTER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH UNTIL 1200, THEN NORTH
AROUND 10 MPH. GUSTS UP TO 20 MPH.
RIDGE TOP WINDS.....NORTH 10 TO 15 MPH.
CHC OF WETTING RAIN.7 PERCENT.
TRANSPORT WINDS.....NORTHEAST 10 TO 15 MPH.
MIXING HEIGHT.......800-2800 FT AGL UNTIL 1200, THEN 3800-5800 FT
AGL.
SMOKE DISPERSAL.....POOR TO FAIR.
TUESDAY NIGHT
SKY/WEATHER.........PARTLY CLOUDY. ISOLATED SHOWERS AND
THUNDERSTORMS EARLY IN THE EVENING. SOME
THUNDERSTORMS MAY PRODUCE GUSTY WINDS EARLY IN
THE EVENING. CHANCE OF PRECIPITATION 20
PERCENT.
CHANCE OF THUNDER...10 PERCENT.
MIN TEMPERATURE.....33-38.
24 HR TREND......UNCHANGED.
MAX HUMIDITY........83-89 PERCENT.
24 HR TREND......1 PERCENT DRIER.
HUMIDITY RECOVERY...EXCELLENT.
20-FOOT WINDS.......NORTHEAST WINDS AROUND 10 MPH UNTIL 2400, THEN
DOWNSLOPE/DOWNVALLEY 4-7 MPH. GUSTS UP TO 20
MPH.
RIDGE TOP WINDS.....NORTHEAST 10 TO 15 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....NORTHEAST 10 TO 15 MPH.
MIXING HEIGHT.......1000-3000 FT AGL UNTIL 2400, THEN 400-800 FT
AGL.
SMOKE DISPERSAL.....POOR.
WEDNESDAY
SKY/WEATHER.........MOSTLY SUNNY.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....60-65.
24 HR TREND......5 DEGREES WARMER.
MIN HUMIDITY........41-47 PERCENT.
24 HR TREND......12 PERCENT DRIER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH.
RIDGE TOP WINDS.....NORTHEAST AROUND 10 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....NORTHEAST AROUND 10 MPH.
MIXING HEIGHT.......1000-3000 FT AGL UNTIL 1200, THEN 4600-6600 FT
AGL.
SMOKE DISPERSAL.....POOR TO FAIR.
FORECAST DAYS 3 THROUGH 7...
WEDNESDAY NIGHT
MOSTLY CLEAR. LOWS IN THE MID 30S. WINDS
GENERALLY LESS THAN 10 MPH.
THURSDAY
CLEAR. LOWS IN THE MID 30S. HIGHS IN THE MID 60S.
WINDS GENERALLY LESS THAN 10 MPH.
FRIDAY
MOSTLY CLEAR. LOWS IN THE UPPER 30S. HIGHS IN THE UPPER
60S. WINDS GENERALLY LESS THAN 10 MPH.
SATURDAY
PARTLY CLOUDY. LOWS IN THE UPPER 30S. HIGHS IN THE
MID 60S. WINDS GENERALLY LESS THAN 10 MPH.
SUNDAY
PARTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS IN THE MID 30S. HIGHS IN THE LOWER 60S.
MONDAY
MOSTLY SUNNY. HIGHS AROUND 60.
WYZ415-162115-
NORTH ZONE BRIDGER TETON NF AND GRAND TETON NP-
INCLUDING THE CITIES OF JACKSON AND MORAN
103 PM MDT MON SEP 15 2025
..FREEZE WARNING IN EFFECT FROM 1 AM TO 7 AM MDT TUESDAY
THIS AFTERNOON
SKY/WEATHER.........PARTLY CLOUDY. SCATTERED SHOWERS AND
THUNDERSTORMS. SOME THUNDERSTORMS MAY PRODUCE
GUSTY WINDS. 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......10 PERCENT WETTER.
20-FOOT WINDS.......WEST WINDS AROUND 15 MPH WITH HIGHER GUSTS.
RIDGE TOP WINDS.....WEST AROUND 20 MPH.
CHC OF WETTING RAIN.10 PERCENT.
TRANSPORT WINDS.....WEST AROUND 20 MPH.
MIXING HEIGHT.......5800-7400 FT AGL.
SMOKE DISPERSAL.....GOOD TO VERY GOOD.
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY. ISOLATED SHOWERS AND
THUNDERSTORMS EARLY IN THE EVENING. SOME
THUNDERSTORMS MAY PRODUCE GUSTY WINDS EARLY IN
THE EVENING. CHANCE OF PRECIPITATION 20
PERCENT.
CHANCE OF THUNDER...10 PERCENT.
MIN TEMPERATURE.....30-35.
24 HR TREND......6 DEGREES COOLER.
MAX HUMIDITY........77-83 PERCENT.
24 HR TREND......18 PERCENT DRIER.
HUMIDITY RECOVERY...EXCELLENT.
20-FOOT WINDS.......WEST WINDS AROUND 10 MPH AND GUSTY UNTIL 2100,
THEN DOWNSLOPE/DOWNVALLEY 4-7 MPH.
RIDGE TOP WINDS.....NORTHWEST AROUND 10 MPH UNTIL 2400, THEN
NORTHEAST.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....WEST AROUND 10 MPH UNTIL 2400, THEN NORTHEAST.
MIXING HEIGHT.......2400-4400 FT AGL UNTIL 2400, THEN 400-1000 FT
AGL.
SMOKE DISPERSAL.....POOR TO FAIR.
TUESDAY
SKY/WEATHER.........PARTLY CLOUDY. ISOLATED SHOWERS AND
THUNDERSTORMS IN THE AFTERNOON. SOME
THUNDERSTORMS MAY PRODUCE GUSTY WINDS IN THE
AFTERNOON. CHANCE OF PRECIPITATION 20 PERCENT.
CHANCE OF THUNDER...20 PERCENT.
MAX TEMPERATURE.....56-61.
24 HR TREND......3 DEGREES WARMER.
MIN HUMIDITY........44-50 PERCENT.
24 HR TREND......4 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.....NORTH AROUND 10 MPH.
CHC OF WETTING RAIN.LESS THAN 5 PERCENT.
TRANSPORT WINDS.....NORTHEAST AROUND 10 MPH.
MIXING HEIGHT.......1200-3200 FT AGL UNTIL 1200, THEN 5000-7000 FT
AGL.
SMOKE DISPERSAL.....POOR TO FAIR.
TUESDAY NIGHT
SKY/WEATHER.........PARTLY CLOUDY. ISOLATED SHOWERS AND
THUNDERSTORMS EARLY IN THE EVENING. SOME
THUNDERSTORMS MAY PRODUCE GUSTY WINDS EARLY IN
THE EVENING. CHANCE OF PRECIPITATION 20
PERCENT.
CHANCE OF THUNDER...10 PERCENT.
MIN TEMPERATURE.....31-36.
24 HR TREND......1 DEGREE WARMER.
MAX HUMIDITY........80-86 PERCENT.
24 HR TREND......8 PERCENT WETTER.
HUMIDITY RECOVERY...EXCELLENT.
20-FOOT WINDS.......NORTHEAST WINDS AROUND 10 MPH UNTIL 2400, THEN
DOWNSLOPE/DOWNVALLEY 4-7 MPH. GUSTS UP TO 15
MPH.
RIDGE TOP WINDS.....NORTHEAST 10 TO 15 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....EAST 10 TO 15 MPH.
MIXING HEIGHT.......1800-3800 FT AGL UNTIL 2400, THEN 400-1000 FT
AGL.
SMOKE DISPERSAL.....POOR.
WEDNESDAY
SKY/WEATHER.........MOSTLY SUNNY. SLIGHT CHANCE OF SHOWERS IN THE
AFTERNOON. SLIGHT CHANCE OF THUNDERSTORMS LATE
IN THE AFTERNOON. CHANCE OF PRECIPITATION 20
PERCENT.
CHANCE OF THUNDER...10 PERCENT.
MAX TEMPERATURE.....60-65.
24 HR TREND......3 DEGREES WARMER.
MIN HUMIDITY........39-45 PERCENT.
24 HR TREND......4 PERCENT DRIER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH. GUSTS UP TO 15 MPH.
RIDGE TOP WINDS.....NORTHEAST AROUND 10 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....NORTHEAST AROUND 10 MPH.
MIXING HEIGHT.......1200-3200 FT AGL UNTIL 1200, THEN 5000-7000 FT
AGL.
SMOKE DISPERSAL.....POOR TO FAIR.
FORECAST DAYS 3 THROUGH 7...
WEDNESDAY NIGHT
MOSTLY CLEAR. LOWS IN THE MID 30S. WINDS
GENERALLY LESS THAN 10 MPH.
THURSDAY
CLEAR. LOWS IN THE UPPER 30S. HIGHS IN THE MID 60S.
WINDS GENERALLY LESS THAN 10 MPH.
FRIDAY
MOSTLY CLEAR. LOWS AROUND 40. HIGHS IN THE UPPER 60S.
WINDS GENERALLY LESS THAN 10 MPH.
SATURDAY
PARTLY CLOUDY. LOWS IN THE LOWER 40S. HIGHS IN THE
MID 60S. WINDS GENERALLY LESS THAN 10 MPH.
SUNDAY
PARTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS IN THE UPPER 30S. HIGHS IN THE LOWER 60S.
MONDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 60S.
WYZ416-162115-
WEST WIND RIVER MOUNTAINS/EAST ZONE BRIDGER TETON NF-
103 PM MDT MON SEP 15 2025
THIS AFTERNOON
SKY/WEATHER.........PARTLY CLOUDY. SCATTERED SHOWERS AND
THUNDERSTORMS. SOME THUNDERSTORMS MAY BE
SEVERE. CHANCE OF PRECIPITATION 50 PERCENT.
CHANCE OF THUNDER...40 PERCENT.
MAX TEMPERATURE.....50-55.
24 HR TREND......6 DEGREES COOLER.
MIN HUMIDITY........51-57 PERCENT.
24 HR TREND......13 PERCENT WETTER.
20-FOOT WINDS.......WEST WINDS AROUND 20 MPH WITH GUSTS TO AROUND
35 MPH.
RIDGE TOP WINDS.....WEST AROUND 25 MPH.
CHC OF WETTING RAIN.30 PERCENT.
TRANSPORT WINDS.....WEST AROUND 25 MPH.
MIXING HEIGHT.......5600-7200 FT AGL.
SMOKE DISPERSAL.....VERY GOOD.
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY. ISOLATED SHOWERS EARLY IN THE
EVENING. CHANCE OF SHOWERS 20 PERCENT.
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....29-34.
24 HR TREND......4 DEGREES COOLER.
MAX HUMIDITY........72-78 PERCENT.
24 HR TREND......26 PERCENT DRIER.
HUMIDITY RECOVERY...EXCELLENT.
20-FOOT WINDS.......WEST WINDS AROUND 10 MPH WITH GUSTS TO AROUND
30 MPH UNTIL 2100, THEN DOWNSLOPE/DOWNVALLEY
4-7 MPH.
RIDGE TOP WINDS.....NORTHWEST AROUND 15 MPH UNTIL 2400, THEN
NORTHEAST.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....NORTHWEST AROUND 15 MPH UNTIL 2400, THEN EAST.
MIXING HEIGHT.......2200-4200 FT AGL UNTIL 2400, THEN 400-800 FT
AGL.
SMOKE DISPERSAL.....FAIR TO GOOD UNTIL 2400, THEN POOR.
TUESDAY
SKY/WEATHER.........PARTLY CLOUDY. ISOLATED SHOWERS IN THE LATE
MORNING AND EARLY AFTERNOON. ISOLATED
THUNDERSTORMS IN THE AFTERNOON. SCATTERED
SHOWERS EARLY IN THE AFTERNOON. SOME
THUNDERSTORMS MAY PRODUCE GUSTY WINDS IN THE
AFTERNOON. CHANCE OF PRECIPITATION 50 PERCENT.
CHANCE OF THUNDER...20 PERCENT.
MAX TEMPERATURE.....52-57.
24 HR TREND......1 DEGREE WARMER.
MIN HUMIDITY........46-52 PERCENT.
24 HR TREND......4 PERCENT DRIER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH UNTIL 1200, THEN WEST
AROUND 10 MPH. GUSTS UP TO 15 MPH.
RIDGE TOP WINDS.....NORTHEAST AROUND 10 MPH UNTIL 1200, THEN WEST.
CHC OF WETTING RAIN.ZERO PERCENT UNTIL 1200, THEN 10 PERCENT.
TRANSPORT WINDS.....SOUTHEAST AROUND 10 MPH UNTIL 1200, THEN
SOUTHWEST.
MIXING HEIGHT.......1400-3400 FT AGL UNTIL 1200, THEN 5200-7200 FT
AGL.
SMOKE DISPERSAL.....POOR TO FAIR.
TUESDAY NIGHT
SKY/WEATHER.........PARTLY CLOUDY. ISOLATED THUNDERSTORMS AND SNOW
SHOWERS IN THE EVENING. SLIGHT CHANCE OF
SHOWERS THROUGH THE NIGHT. CHANCE OF SNOW
SHOWERS AFTER MIDNIGHT. SOME THUNDERSTORMS MAY
PRODUCE GUSTY WINDS EARLY IN THE EVENING.
CHANCE OF PRECIPITATION 40 PERCENT.
CHANCE OF THUNDER...20 PERCENT.
MIN TEMPERATURE.....31-36.
24 HR TREND......1 DEGREE WARMER.
MAX HUMIDITY........81-87 PERCENT.
24 HR TREND......16 PERCENT WETTER.
HUMIDITY RECOVERY...EXCELLENT.
20-FOOT WINDS.......NORTHEAST WINDS 10 TO 15 MPH WITH GUSTS TO
AROUND 25 MPH UNTIL 2400, THEN
DOWNSLOPE/DOWNVALLEY 4-7 MPH.
RIDGE TOP WINDS.....NORTHEAST 10 TO 15 MPH.
CHC OF WETTING RAIN.LESS THAN 5 PERCENT.
TRANSPORT WINDS.....NORTHEAST 10 TO 15 MPH.
MIXING HEIGHT.......1400-3400 FT AGL UNTIL 2400, THEN 400-800 FT
AGL.
SMOKE DISPERSAL.....POOR.
WEDNESDAY
SKY/WEATHER.........PARTLY CLOUDY. SLIGHT CHANCE OF SNOW SHOWERS
EARLY IN THE MORNING. SLIGHT CHANCE OF SHOWERS
THROUGH THE DAY. SLIGHT CHANCE OF THUNDERSTORMS
IN THE AFTERNOON. CHANCE OF PRECIPITATION 20
PERCENT.
CHANCE OF THUNDER...20 PERCENT.
MAX TEMPERATURE.....53-58.
24 HR TREND......1 DEGREE WARMER.
MIN HUMIDITY........48-54 PERCENT.
24 HR TREND......2 PERCENT WETTER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH UNTIL 1500, THEN
NORTHEAST AROUND 10 MPH. GUSTS UP TO 15 MPH.
RIDGE TOP WINDS.....NORTHEAST AROUND 10 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....NORTHEAST AROUND 10 MPH.
MIXING HEIGHT.......1400-3400 FT AGL UNTIL 1200, THEN 4800-6800 FT
AGL.
SMOKE DISPERSAL.....POOR TO FAIR.
FORECAST DAYS 3 THROUGH 7...
WEDNESDAY THROUGH FRIDAY
MOSTLY CLEAR. LOWS 34 TO 39. HIGHS
59 TO 64. WINDS GENERALLY LESS THAN 10 MPH.
SATURDAY
PARTLY CLOUDY. LOWS IN THE UPPER 30S. HIGHS IN THE
LOWER 60S. WEST WINDS AROUND 10 MPH.
SUNDAY
MOSTLY CLEAR WITH SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS IN THE MID 30S. HIGHS IN THE UPPER 50S.
MONDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 50S.
WYZ288-162115-
EAST WIND RIVER MOUNTAINS/SOUTH SHOSHONE NF-
INCLUDING THE CITIES OF DUBOIS AND SOUTH PASS
103 PM MDT MON SEP 15 2025
THIS AFTERNOON
SKY/WEATHER.........PARTLY CLOUDY. SCATTERED SHOWERS AND
THUNDERSTORMS. SOME THUNDERSTORMS MAY BE SEVERE
WITH GUSTY WINDS. CHANCE OF PRECIPITATION 50
PERCENT.
CHANCE OF THUNDER...30 PERCENT.
MAX TEMPERATURE.....56-61.
24 HR TREND......4 DEGREES COOLER.
MIN HUMIDITY........44-50 PERCENT.
24 HR TREND......8 PERCENT WETTER.
20-FOOT WINDS.......WEST WINDS AROUND 20 MPH WITH GUSTS TO AROUND
35 MPH.
RIDGE TOP WINDS.....WEST AROUND 25 MPH.
CHC OF WETTING RAIN.25 PERCENT.
TRANSPORT WINDS.....WEST AROUND 30 MPH.
MIXING HEIGHT.......6400-8400 FT AGL.
SMOKE DISPERSAL.....EXCELLENT.
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY. ISOLATED SHOWERS EARLY IN THE
EVENING. ISOLATED SHOWERS EARLY IN THE MORNING.
CHANCE OF SHOWERS 20 PERCENT.
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....33-38.
24 HR TREND......5 DEGREES COOLER.
MAX HUMIDITY........67-73 PERCENT.
24 HR TREND......19 PERCENT DRIER.
HUMIDITY RECOVERY...GOOD.
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.....WEST 10 TO 15 MPH.
MIXING HEIGHT.......2400-4400 FT AGL UNTIL 2400, THEN 400-800 FT
AGL.
SMOKE DISPERSAL.....FAIR TO GOOD UNTIL 2400, THEN POOR.
TUESDAY
SKY/WEATHER.........PARTLY CLOUDY. ISOLATED SHOWERS IN THE MORNING.
ISOLATED THUNDERSTORMS IN THE AFTERNOON.
SCATTERED SHOWERS IN THE AFTERNOON. SOME
THUNDERSTORMS MAY PRODUCE GUSTY WINDS IN THE
AFTERNOON. CHANCE OF PRECIPITATION 50 PERCENT.
CHANCE OF THUNDER...20 PERCENT.
MAX TEMPERATURE.....50-55.
24 HR TREND......6 DEGREES COOLER.
MIN HUMIDITY........51-57 PERCENT.
24 HR TREND......17 PERCENT WETTER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH UNTIL 0900, THEN
NORTHEAST AROUND 10 MPH. GUSTS UP TO 20 MPH.
RIDGE TOP WINDS.....NORTH AROUND 10 MPH UNTIL 1200, THEN NORTHEAST.
CHC OF WETTING RAIN.ZERO PERCENT UNTIL 1200, THEN 30 PERCENT.
TRANSPORT WINDS.....SOUTH AROUND 10 MPH UNTIL 1200, THEN EAST.
MIXING HEIGHT.......1000-3000 FT AGL UNTIL 1200, THEN 3000-5000 FT
AGL.
SMOKE DISPERSAL.....POOR TO FAIR.
TUESDAY NIGHT
SKY/WEATHER.........PARTLY CLOUDY. ISOLATED THUNDERSTORMS EARLY IN
THE EVENING. SCATTERED SHOWERS THROUGH THE
NIGHT. CHANCE OF SNOW SHOWERS AFTER MIDNIGHT.
SOME THUNDERSTORMS MAY PRODUCE GUSTY WINDS
EARLY IN THE EVENING. CHANCE OF PRECIPITATION
50 PERCENT.
CHANCE OF THUNDER...20 PERCENT.
MIN TEMPERATURE.....34-39.
24 HR TREND......1 DEGREE WARMER.
MAX HUMIDITY........81-87 PERCENT.
24 HR TREND......15 PERCENT WETTER.
HUMIDITY RECOVERY...EXCELLENT.
20-FOOT WINDS.......NORTH WINDS AROUND 10 MPH UNTIL 0300, THEN
DOWNSLOPE/DOWNVALLEY 4-7 MPH. GUSTS UP TO 25
MPH.
RIDGE TOP WINDS.....NORTH 10 TO 15 MPH.
CHC OF WETTING RAIN.12 PERCENT.
TRANSPORT WINDS.....NORTHEAST 10 TO 15 MPH.
MIXING HEIGHT.......800-2800 FT AGL UNTIL 2400, THEN 400-800 FT
AGL.
SMOKE DISPERSAL.....POOR.
WEDNESDAY
SKY/WEATHER.........PARTLY CLOUDY. CHANCE OF SHOWERS THROUGH THE
DAY. SLIGHT CHANCE OF THUNDERSTORMS IN THE
AFTERNOON. CHANCE OF PRECIPITATION 50 PERCENT.
CHANCE OF THUNDER...20 PERCENT.
MAX TEMPERATURE.....52-57.
24 HR TREND......1 DEGREE WARMER.
MIN HUMIDITY........51-57 PERCENT.
24 HR TREND......UNCHANGED.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH UNTIL 1200, THEN
NORTHEAST AROUND 10 MPH. GUSTS UP TO 20 MPH.
RIDGE TOP WINDS.....NORTH 10 TO 15 MPH.
CHC OF WETTING RAIN.5 PERCENT.
TRANSPORT WINDS.....NORTH 10 TO 15 MPH.
MIXING HEIGHT.......1000-3000 FT AGL UNTIL 1200, THEN 3800-5400 FT
AGL.
SMOKE DISPERSAL.....POOR TO FAIR.
FORECAST DAYS 3 THROUGH 7...
WEDNESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 30S. WINDS
GENERALLY LESS THAN 10 MPH.
THURSDAY THROUGH FRIDAY
MOSTLY CLEAR. LOWS 39 TO 44. HIGHS
59 TO 64. WINDS GENERALLY LESS THAN 10 MPH.
SATURDAY
PARTLY CLOUDY. LOWS IN THE MID 40S. HIGHS IN THE MID
60S. WEST WINDS AROUND 10 MPH.
SUNDAY
MOSTLY CLEAR. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS IN THE LOWER 40S. HIGHS IN THE LOWER 60S.
MONDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 60S.
WYZ414-162115-
SALT AND WYOMING RANGES/WEST ZONE BRIDGER TETON NF-
INCLUDING THE CITY OF AFTON
103 PM MDT MON SEP 15 2025
THIS AFTERNOON
SKY/WEATHER.........MOSTLY SUNNY. ISOLATED SHOWERS AND
THUNDERSTORMS. SOME THUNDERSTORMS MAY PRODUCE
GUSTY WINDS. CHANCE OF PRECIPITATION 20
PERCENT.
CHANCE OF THUNDER...20 PERCENT.
MAX TEMPERATURE.....54-59.
24 HR TREND......6 DEGREES COOLER.
MIN HUMIDITY........40-46 PERCENT.
24 HR TREND......8 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.
TRANSPORT WINDS.....WEST AROUND 25 MPH.
MIXING HEIGHT.......6000-7200 FT AGL.
SMOKE DISPERSAL.....VERY GOOD.
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY.
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....30-35.
24 HR TREND......5 DEGREES COOLER.
MAX HUMIDITY........74-80 PERCENT.
24 HR TREND......30 PERCENT DRIER.
HUMIDITY RECOVERY...EXCELLENT.
20-FOOT WINDS.......WEST WINDS AROUND 10 MPH WITH GUSTS TO AROUND
30 MPH UNTIL 2100, THEN DOWNSLOPE/DOWNVALLEY
4-7 MPH.
RIDGE TOP WINDS.....NORTHWEST AROUND 15 MPH UNTIL 2400, THEN EAST.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....NORTHWEST AROUND 15 MPH UNTIL 2400, THEN
NORTHEAST.
MIXING HEIGHT.......2400-4400 FT AGL UNTIL 2400, THEN 400-1000 FT
AGL.
SMOKE DISPERSAL.....FAIR TO GOOD UNTIL 2400, THEN POOR.
TUESDAY
SKY/WEATHER.........MOSTLY SUNNY THEN BECOMING PARTLY CLOUDY.
ISOLATED SHOWERS AND THUNDERSTORMS IN THE
AFTERNOON. SOME THUNDERSTORMS MAY PRODUCE GUSTY
WINDS IN THE AFTERNOON. CHANCE OF PRECIPITATION
20 PERCENT.
CHANCE OF THUNDER...20 PERCENT.
MAX TEMPERATURE.....57-62.
24 HR TREND......3 DEGREES WARMER.
MIN HUMIDITY........35-41 PERCENT.
24 HR TREND......5 PERCENT DRIER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH UNTIL 1500, THEN
NORTHWEST AROUND 10 MPH. GUSTS UP TO 15 MPH.
RIDGE TOP WINDS.....NORTH AROUND 10 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....NORTHEAST AROUND 10 MPH UNTIL 1200, THEN
NORTHWEST.
MIXING HEIGHT.......1400-3400 FT AGL UNTIL 1200, THEN 5600-7600 FT
AGL.
SMOKE DISPERSAL.....POOR TO FAIR.
TUESDAY NIGHT
SKY/WEATHER.........PARTLY CLOUDY.
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....31-36.
24 HR TREND......1 DEGREE WARMER.
MAX HUMIDITY........80-86 PERCENT.
24 HR TREND......14 PERCENT WETTER.
HUMIDITY RECOVERY...EXCELLENT.
20-FOOT WINDS.......NORTH WINDS AROUND 10 MPH UNTIL 2100, THEN
DOWNSLOPE/DOWNVALLEY 4-7 MPH. GUSTS UP TO 15
MPH.
RIDGE TOP WINDS.....NORTH AROUND 10 MPH UNTIL 2400, THEN EAST.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....NORTHEAST AROUND 10 MPH UNTIL 2400, THEN
SOUTHEAST.
MIXING HEIGHT.......2200-4200 FT AGL UNTIL 2400, THEN 400-1000 FT
AGL.
SMOKE DISPERSAL.....POOR.
WEDNESDAY
SKY/WEATHER.........MOSTLY SUNNY.
CHANCE OF THUNDER...10 PERCENT.
MAX TEMPERATURE.....60-65.
24 HR TREND......2 DEGREES WARMER.
MIN HUMIDITY........37-43 PERCENT.
24 HR TREND......3 PERCENT WETTER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH. GUSTS UP TO 15 MPH.
RIDGE TOP WINDS.....EAST AROUND 10 MPH UNTIL 1200, THEN NORTH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....NORTHEAST AROUND 10 MPH.
MIXING HEIGHT.......1600-3600 FT AGL UNTIL 1200, THEN 5400-7400 FT
AGL.
SMOKE DISPERSAL.....POOR TO FAIR.
FORECAST DAYS 3 THROUGH 7...
WEDNESDAY THROUGH FRIDAY
MOSTLY CLEAR. LOWS 38 TO 43. HIGHS
64 TO 69. WINDS GENERALLY LESS THAN 10 MPH.
SATURDAY
PARTLY CLOUDY. LOWS IN THE LOWER 40S. HIGHS IN THE
MID 60S. WINDS GENERALLY LESS THAN 10 MPH.
SUNDAY
MOSTLY CLEAR WITH SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS IN THE UPPER 30S. HIGHS IN THE LOWER 60S.
MONDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 60S.
WYZ278-162115-
UPPER GREEN RIVER BASIN/ROCK SPRINGS BLM-
INCLUDING THE CITIES OF BIG PINEY, FARSON, AND PINEDALE
103 PM MDT MON SEP 15 2025
..FREEZE WARNING IN EFFECT FROM 1 AM TO 7 AM MDT TUESDAY
THIS AFTERNOON
SKY/WEATHER.........PARTLY CLOUDY. ISOLATED SHOWERS AND
THUNDERSTORMS. SOME THUNDERSTORMS MAY BE SEVERE
WITH GUSTY WINDS. CHANCE OF PRECIPITATION 20
PERCENT.
CHANCE OF THUNDER...20 PERCENT.
MAX TEMPERATURE.....60-65.
24 HR TREND......2 DEGREES COOLER.
MIN HUMIDITY........33-39 PERCENT.
24 HR TREND......4 PERCENT WETTER.
20-FOOT WINDS.......WEST WINDS AROUND 20 MPH WITH GUSTS TO AROUND
30 MPH.
RIDGE TOP WINDS.....WEST AROUND 25 MPH.
CHC OF WETTING RAIN.5 PERCENT.
TRANSPORT WINDS.....WEST AROUND 30 MPH.
MIXING HEIGHT.......7600-9600 FT AGL.
SMOKE DISPERSAL.....EXCELLENT.
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY. ISOLATED SHOWERS EARLY IN THE
MORNING. CHANCE OF SHOWERS 20 PERCENT.
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....33-38.
24 HR TREND......6 DEGREES COOLER.
MAX HUMIDITY........71-77 PERCENT.
24 HR TREND......15 PERCENT DRIER.
HUMIDITY RECOVERY...EXCELLENT.
20-FOOT WINDS.......NORTHWEST WINDS 10 TO 15 MPH WITH GUSTS TO
AROUND 30 MPH UNTIL 2400, THEN
DOWNSLOPE/DOWNVALLEY 4-7 MPH.
RIDGE TOP WINDS.....NORTHWEST 10 TO 15 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....NORTH 10 TO 15 MPH.
MIXING HEIGHT.......2800-4800 FT AGL UNTIL 2400, THEN 600 FT AGL.
SMOKE DISPERSAL.....GOOD UNTIL 2400, THEN POOR.
TUESDAY
SKY/WEATHER.........PARTLY CLOUDY. ISOLATED SHOWERS AND
THUNDERSTORMS IN THE AFTERNOON. SOME
THUNDERSTORMS MAY PRODUCE GUSTY WINDS IN THE
AFTERNOON. CHANCE OF PRECIPITATION 20 PERCENT.
CHANCE OF THUNDER...20 PERCENT.
MAX TEMPERATURE.....57-62.
24 HR TREND......3 DEGREES COOLER.
MIN HUMIDITY........35-41 PERCENT.
24 HR TREND......4 PERCENT WETTER.
20-FOOT WINDS.......NORTH WINDS AROUND 10 MPH UNTIL 0900, THEN
UPSLOPE/UPVALLEY 5-9 MPH UNTIL 1500, THEN
NORTHEAST AROUND 10 MPH. GUSTS UP TO 15 MPH.
RIDGE TOP WINDS.....NORTH AROUND 10 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....NORTHEAST AROUND 10 MPH UNTIL 1200, THEN
SOUTHWEST.
MIXING HEIGHT.......1000-3000 FT AGL UNTIL 1200, THEN 5400-7400 FT
AGL.
SMOKE DISPERSAL.....POOR TO FAIR.
TUESDAY NIGHT
SKY/WEATHER.........PARTLY CLOUDY. ISOLATED SHOWERS AND
THUNDERSTORMS EARLY IN THE EVENING. SLIGHT
CHANCE OF SHOWERS AFTER MIDNIGHT. SOME
THUNDERSTORMS MAY PRODUCE GUSTY WINDS EARLY IN
THE EVENING. CHANCE OF PRECIPITATION 20
PERCENT.
CHANCE OF THUNDER...10 PERCENT.
MIN TEMPERATURE.....33-38.
24 HR TREND......1 DEGREE WARMER.
MAX HUMIDITY........81-87 PERCENT.
24 HR TREND......15 PERCENT WETTER.
HUMIDITY RECOVERY...EXCELLENT.
20-FOOT WINDS.......NORTHEAST WINDS AROUND 10 MPH UNTIL 2400, THEN
DOWNSLOPE/DOWNVALLEY 4-7 MPH. GUSTS UP TO 20
MPH.
RIDGE TOP WINDS.....NORTHEAST 10 TO 15 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....EAST 10 TO 15 MPH.
MIXING HEIGHT.......2600-4600 FT AGL UNTIL 2400, THEN 400-800 FT
AGL.
SMOKE DISPERSAL.....POOR.
WEDNESDAY
SKY/WEATHER.........MOSTLY SUNNY THEN BECOMING PARTLY CLOUDY.
SLIGHT CHANCE OF SHOWERS THROUGH THE DAY.
SLIGHT CHANCE OF THUNDERSTORMS IN THE
AFTERNOON. CHANCE OF PRECIPITATION 20 PERCENT.
CHANCE OF THUNDER...10 PERCENT.
MAX TEMPERATURE.....57-62.
24 HR TREND......UNCHANGED.
MIN HUMIDITY........41-47 PERCENT.
24 HR TREND......4 PERCENT WETTER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH.
RIDGE TOP WINDS.....NORTH AROUND 10 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....NORTH AROUND 10 MPH.
MIXING HEIGHT.......1400-3400 FT AGL UNTIL 1200, THEN 5200-7200 FT
AGL.
SMOKE DISPERSAL.....POOR TO FAIR.
FORECAST DAYS 3 THROUGH 7...
WEDNESDAY THROUGH FRIDAY
MOSTLY CLEAR. LOWS 36 TO 41. HIGHS
67 TO 72. WINDS GENERALLY LESS THAN 10 MPH.
SATURDAY
PARTLY CLOUDY. LOWS IN THE LOWER 40S. HIGHS IN THE
LOWER 70S. WEST WINDS AROUND 10 MPH.
SUNDAY
MOSTLY CLEAR. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS IN THE UPPER 30S. HIGHS IN THE UPPER 60S.
MONDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 60S.
WYZ277-162115-
LINCOLN AND UINTA COUNTIES/LOWER ELEVATIONS-
INCLUDING THE CITIES OF EVANSTON, FORT BRIDGER, AND KEMMERER
103 PM MDT MON SEP 15 2025
THIS AFTERNOON
SKY/WEATHER.........MOSTLY SUNNY. ISOLATED SHOWERS AND
THUNDERSTORMS. SOME THUNDERSTORMS MAY PRODUCE
GUSTY WINDS. CHANCE OF PRECIPITATION 20
PERCENT.
CHANCE OF THUNDER...10 PERCENT.
MAX TEMPERATURE.....62-67.
24 HR TREND......1 DEGREE COOLER.
MIN HUMIDITY........28-34 PERCENT.
24 HR TREND......4 PERCENT WETTER.
20-FOOT WINDS.......WEST WINDS AROUND 20 MPH WITH GUSTS TO AROUND
35 MPH.
RIDGE TOP WINDS.....WEST AROUND 25 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....WEST AROUND 30 MPH.
MIXING HEIGHT.......7400-9400 FT AGL.
SMOKE DISPERSAL.....EXCELLENT.
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY. ISOLATED THUNDERSTORMS AFTER
MIDNIGHT. ISOLATED SHOWERS AFTER MIDNIGHT. SOME
THUNDERSTORMS MAY PRODUCE GUSTY WINDS AFTER
MIDNIGHT. CHANCE OF PRECIPITATION 20 PERCENT.
CHANCE OF THUNDER...10 PERCENT.
MIN TEMPERATURE.....35-40.
24 HR TREND......6 DEGREES COOLER.
MAX HUMIDITY........70-76 PERCENT.
24 HR TREND......16 PERCENT DRIER.
HUMIDITY RECOVERY...EXCELLENT.
20-FOOT WINDS.......NORTHWEST WINDS 10 TO 15 MPH WITH GUSTS TO
AROUND 30 MPH UNTIL 2400, THEN
DOWNSLOPE/DOWNVALLEY 4-7 MPH.
RIDGE TOP WINDS.....NORTH 10 TO 15 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....NORTHWEST AROUND 15 MPH UNTIL 2400, THEN
NORTHEAST.
MIXING HEIGHT.......2600-4600 FT AGL UNTIL 2400, THEN 400-800 FT
AGL.
SMOKE DISPERSAL.....GOOD UNTIL 2400, THEN POOR.
TUESDAY
SKY/WEATHER.........PARTLY CLOUDY. ISOLATED SHOWERS EARLY IN THE
AFTERNOON. ISOLATED THUNDERSTORMS LATE IN THE
AFTERNOON. SOME THUNDERSTORMS MAY PRODUCE GUSTY
WINDS LATE IN THE AFTERNOON. CHANCE OF
PRECIPITATION 20 PERCENT.
CHANCE OF THUNDER...10 PERCENT.
MAX TEMPERATURE.....58-63.
24 HR TREND......3 DEGREES COOLER.
MIN HUMIDITY........28-34 PERCENT.
24 HR TREND......1 PERCENT WETTER.
20-FOOT WINDS.......NORTH WINDS AROUND 10 MPH UNTIL 0900, THEN
UPSLOPE/UPVALLEY 5-9 MPH UNTIL 1500, THEN
NORTHWEST AROUND 10 MPH. GUSTS UP TO 15 MPH.
RIDGE TOP WINDS.....NORTH AROUND 10 MPH UNTIL 1200, THEN NORTHWEST.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....NORTHEAST AROUND 10 MPH UNTIL 1200, THEN WEST.
MIXING HEIGHT.......1000-3000 FT AGL UNTIL 1200, THEN 5200-7200 FT
AGL.
SMOKE DISPERSAL.....POOR UNTIL 1200, THEN GOOD.
TUESDAY NIGHT
SKY/WEATHER.........PARTLY CLOUDY.
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....34-39.
24 HR TREND......UNCHANGED.
MAX HUMIDITY........84-90 PERCENT.
24 HR TREND......17 PERCENT WETTER.
HUMIDITY RECOVERY...EXCELLENT.
20-FOOT WINDS.......NORTHEAST WINDS AROUND 10 MPH UNTIL 2400, THEN
DOWNSLOPE/DOWNVALLEY 4-7 MPH. GUSTS UP TO 15
MPH.
RIDGE TOP WINDS.....NORTHEAST 10 TO 15 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....EAST 10 TO 15 MPH.
MIXING HEIGHT.......2800-4800 FT AGL UNTIL 2400, THEN 400-800 FT
AGL.
SMOKE DISPERSAL.....POOR TO FAIR UNTIL 2400, THEN POOR.
WEDNESDAY
SKY/WEATHER.........MOSTLY SUNNY.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....59-64.
24 HR TREND......UNCHANGED.
MIN HUMIDITY........32-38 PERCENT.
24 HR TREND......5 PERCENT WETTER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH.
RIDGE TOP WINDS.....EAST AROUND 10 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....SOUTHEAST AROUND 10 MPH UNTIL 1200, THEN
NORTHEAST.
MIXING HEIGHT.......1200-3200 FT AGL UNTIL 1200, THEN 5200-7200 FT
AGL.
SMOKE DISPERSAL.....POOR TO FAIR.
FORECAST DAYS 3 THROUGH 7...
WEDNESDAY THROUGH FRIDAY
MOSTLY CLEAR. LOWS 39 TO 44. HIGHS
69 TO 74. WINDS GENERALLY LESS THAN 10 MPH.
SATURDAY
PARTLY CLOUDY. LOWS IN THE LOWER 40S. HIGHS IN THE
LOWER 70S. WEST WINDS AROUND 10 MPH.
SUNDAY
MOSTLY CLEAR. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS AROUND 40. HIGHS AROUND 70.
MONDAY
SUNNY. HIGHS IN THE UPPER 60S.
WYZ279-162115-
SWEETWATER COUNTY/ROCK SPRINGS BLM/FLAMING GORGE NRA-
INCLUDING THE CITIES OF GREEN RIVER, ROCK SPRINGS, AND WAMSUTTER
103 PM MDT MON SEP 15 2025
THIS AFTERNOON
SKY/WEATHER.........PARTLY CLOUDY. ISOLATED SHOWERS AND
THUNDERSTORMS. SOME THUNDERSTORMS MAY PRODUCE
GUSTY WINDS. CHANCE OF PRECIPITATION 20
PERCENT.
CHANCE OF THUNDER...20 PERCENT.
MAX TEMPERATURE.....66-71.
24 HR TREND......1 DEGREE WARMER.
MIN HUMIDITY........29-35 PERCENT.
24 HR TREND......3 PERCENT WETTER.
20-FOOT WINDS.......WEST WINDS AROUND 20 MPH WITH GUSTS TO AROUND
30 MPH.
RIDGE TOP WINDS.....WEST AROUND 25 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....WEST AROUND 25 MPH.
MIXING HEIGHT.......7800-9800 FT AGL.
SMOKE DISPERSAL.....EXCELLENT.
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY CLOUDY.
ISOLATED SHOWERS UNTIL EARLY MORNING. ISOLATED
THUNDERSTORMS THROUGH THE NIGHT. SCATTERED
SHOWERS EARLY IN THE MORNING. SOME
THUNDERSTORMS MAY PRODUCE GUSTY WINDS. CHANCE
OF PRECIPITATION 50 PERCENT.
CHANCE OF THUNDER...20 PERCENT.
MIN TEMPERATURE.....42-47.
24 HR TREND......2 DEGREES COOLER.
MAX HUMIDITY........78-84 PERCENT.
24 HR TREND......8 PERCENT WETTER.
HUMIDITY RECOVERY...EXCELLENT.
20-FOOT WINDS.......NORTHWEST WINDS 10 TO 15 MPH WITH GUSTS TO
AROUND 30 MPH UNTIL 2400, THEN NORTH AND GUSTY.
RIDGE TOP WINDS.....NORTHWEST AROUND 15 MPH UNTIL 2400, THEN NORTH.
CHC OF WETTING RAIN.LESS THAN 5 PERCENT.
TRANSPORT WINDS.....NORTHWEST AROUND 15 MPH UNTIL 2400, THEN NORTH.
MIXING HEIGHT.......2800-4800 FT AGL UNTIL 2400, THEN 400-600 FT
AGL.
SMOKE DISPERSAL.....GOOD UNTIL 2400, THEN POOR.
TUESDAY
SKY/WEATHER.........MOSTLY CLOUDY THEN BECOMING PARTLY CLOUDY.
ISOLATED THUNDERSTORMS UNTIL LATE AFTERNOON.
SCATTERED SHOWERS THROUGH THE DAY. SCATTERED
THUNDERSTORMS LATE IN THE AFTERNOON. SOME
THUNDERSTORMS MAY PRODUCE GUSTY WINDS UNTIL
LATE AFTERNOON. SOME THUNDERSTORMS MAY PRODUCE
GUSTY WINDS LATE IN THE AFTERNOON. CHANCE OF
PRECIPITATION 50 PERCENT.
CHANCE OF THUNDER...30 PERCENT.
MAX TEMPERATURE.....58-63.
24 HR TREND......8 DEGREES COOLER.
MIN HUMIDITY........56-62 PERCENT.
24 HR TREND......20 PERCENT WETTER.
20-FOOT WINDS.......NORTHEAST WINDS AROUND 10 MPH UNTIL 1500, THEN
SOUTHWEST. GUSTS UP TO 25 MPH.
RIDGE TOP WINDS.....EAST AROUND 15 MPH.
CHC OF WETTING RAIN.5 PERCENT UNTIL 1200, THEN 20 PERCENT.
TRANSPORT WINDS.....NORTH AROUND 15 MPH UNTIL 1200, THEN SOUTHWEST.
MIXING HEIGHT.......600-2400 FT AGL UNTIL 1200, THEN 3200-5200 FT
AGL.
SMOKE DISPERSAL.....POOR TO FAIR.
TUESDAY NIGHT
SKY/WEATHER.........PARTLY CLOUDY. ISOLATED THUNDERSTORMS IN THE
EVENING. SCATTERED SHOWERS THROUGH THE NIGHT.
SOME THUNDERSTORMS MAY PRODUCE GUSTY WINDS IN
THE EVENING. CHANCE OF PRECIPITATION 50
PERCENT.
CHANCE OF THUNDER...20 PERCENT.
MIN TEMPERATURE.....39-44.
24 HR TREND......2 DEGREES COOLER.
MAX HUMIDITY........84-90 PERCENT.
24 HR TREND......15 PERCENT WETTER.
HUMIDITY RECOVERY...EXCELLENT.
20-FOOT WINDS.......NORTHEAST WINDS 10 TO 15 MPH AND GUSTY.
RIDGE TOP WINDS.....NORTHEAST AROUND 15 MPH.
CHC OF WETTING RAIN.7 PERCENT.
TRANSPORT WINDS.....NORTHEAST AROUND 15 MPH.
MIXING HEIGHT.......1000-3000 FT AGL UNTIL 2400, THEN 600-800 FT
AGL.
SMOKE DISPERSAL.....POOR.
WEDNESDAY
SKY/WEATHER.........PARTLY CLOUDY. CHANCE OF SHOWERS IN THE
MORNING. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE AFTERNOON. CHANCE OF
PRECIPITATION 50 PERCENT.
CHANCE OF THUNDER...20 PERCENT.
MAX TEMPERATURE.....57-62.
24 HR TREND......1 DEGREE COOLER.
MIN HUMIDITY........50-56 PERCENT.
24 HR TREND......4 PERCENT WETTER.
20-FOOT WINDS.......NORTHEAST WINDS AROUND 10 MPH WITH HIGHER
GUSTS.
RIDGE TOP WINDS.....NORTHEAST AROUND 15 MPH.
CHC OF WETTING RAIN.5 PERCENT.
TRANSPORT WINDS.....NORTHEAST AROUND 15 MPH.
MIXING HEIGHT.......1400-3400 FT AGL UNTIL 1200, THEN 4800-6800 FT
AGL.
SMOKE DISPERSAL.....FAIR TO GOOD.
FORECAST DAYS 3 THROUGH 7...
WEDNESDAY NIGHT
MOSTLY CLEAR. SLIGHT CHANCE OF SHOWERS IN THE
EVENING. LOWS IN THE LOWER 40S. WINDS GENERALLY LESS THAN 10 MPH.
THURSDAY THROUGH FRIDAY
MOSTLY CLEAR. LOWS 40 TO 45. HIGHS
67 TO 72. WINDS GENERALLY LESS THAN 10 MPH.
SATURDAY
PARTLY CLOUDY. LOWS IN THE MID 40S. HIGHS IN THE
LOWER 70S. WEST WINDS AROUND 10 MPH.
SUNDAY
MOSTLY CLEAR. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS IN THE MID 40S. HIGHS IN THE LOWER 70S.
MONDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 70S.
WYZ289-162115-
GRANITE/GREEN/FERRIS/RATTLESNAKE MOUNTAINS-
INCLUDING THE CITY OF JEFFREY CITY
103 PM MDT MON SEP 15 2025
THIS AFTERNOON
SKY/WEATHER.........PARTLY CLOUDY. ISOLATED SHOWERS AND
THUNDERSTORMS. SOME THUNDERSTORMS MAY BE SEVERE
WITH GUSTY WINDS. CHANCE OF PRECIPITATION 20
PERCENT.
CHANCE OF THUNDER...20 PERCENT.
MAX TEMPERATURE.....68-73.
24 HR TREND......1 DEGREE WARMER.
MIN HUMIDITY........22-28 PERCENT.
24 HR TREND......2 PERCENT WETTER.
20-FOOT WINDS.......WEST WINDS AROUND 20 MPH WITH GUSTS TO AROUND
40 MPH.
RIDGE TOP WINDS.....WEST AROUND 25 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....WEST AROUND 30 MPH.
MIXING HEIGHT.......8400-10400 FT AGL.
SMOKE DISPERSAL.....EXCELLENT.
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY. ISOLATED SHOWERS IN THE EVENING.
ISOLATED THUNDERSTORMS THROUGH THE NIGHT.
SCATTERED SHOWERS AFTER MIDNIGHT. SOME
THUNDERSTORMS MAY BE SEVERE WITH GUSTY WINDS.
SOME THUNDERSTORMS MAY BE SEVERE, THEN SOME
THUNDERSTORMS MAY PRODUCE GUSTY WINDS LATE IN
THE EVENING. SOME THUNDERSTORMS MAY PRODUCE
GUSTY WINDS AFTER MIDNIGHT. CHANCE OF
PRECIPITATION 50 PERCENT.
CHANCE OF THUNDER...20 PERCENT.
MIN TEMPERATURE.....42-47.
24 HR TREND......4 DEGREES COOLER.
MAX HUMIDITY........75-81 PERCENT.
24 HR TREND......13 PERCENT WETTER.
HUMIDITY RECOVERY...EXCELLENT.
20-FOOT WINDS.......NORTHWEST WINDS 10 TO 15 MPH. GUSTS UP TO 35
MPH UNTIL 2400, THEN 20 MPH.
RIDGE TOP WINDS.....NORTHWEST AROUND 15 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....NORTH 15 TO 20 MPH.
MIXING HEIGHT.......2800-4800 FT AGL UNTIL 2400, THEN 400-600 FT
AGL.
SMOKE DISPERSAL.....GOOD UNTIL 2400, THEN POOR.
TUESDAY
SKY/WEATHER.........MOSTLY CLOUDY THEN BECOMING PARTLY CLOUDY.
SCATTERED SHOWERS IN THE MORNING, THEN ISOLATED
SHOWERS LATE IN THE MORNING. SCATTERED SHOWERS
AND ISOLATED THUNDERSTORMS IN THE AFTERNOON.
SOME THUNDERSTORMS MAY PRODUCE GUSTY WINDS IN
THE AFTERNOON. CHANCE OF PRECIPITATION 50
PERCENT.
CHANCE OF THUNDER...20 PERCENT.
MAX TEMPERATURE.....57-62.
24 HR TREND......9 DEGREES COOLER.
MIN HUMIDITY........47-53 PERCENT.
24 HR TREND......24 PERCENT WETTER.
20-FOOT WINDS.......NORTHWEST WINDS AROUND 10 MPH UNTIL 0900, THEN
NORTHEAST. GUSTS UP TO 20 MPH.
RIDGE TOP WINDS.....NORTHEAST AROUND 15 MPH.
CHC OF WETTING RAIN.ZERO PERCENT UNTIL 1200, THEN 20 PERCENT.
TRANSPORT WINDS.....WEST AROUND 15 MPH UNTIL 1200, THEN SOUTH.
MIXING HEIGHT.......600-2600 FT AGL UNTIL 1200, THEN 3200-5200 FT
AGL.
SMOKE DISPERSAL.....POOR TO FAIR.
TUESDAY NIGHT
SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY CLOUDY.
ISOLATED THUNDERSTORMS IN THE EVENING. SHOWERS
LIKELY THROUGH THE NIGHT. SLIGHT CHANCE OF
THUNDERSTORMS AFTER MIDNIGHT. SOME
THUNDERSTORMS MAY PRODUCE GUSTY WINDS IN THE
EVENING. CHANCE OF PRECIPITATION 70 PERCENT.
CHANCE OF THUNDER...20 PERCENT.
MIN TEMPERATURE.....42-47.
24 HR TREND......UNCHANGED.
MAX HUMIDITY........85-91 PERCENT.
24 HR TREND......12 PERCENT WETTER.
HUMIDITY RECOVERY...EXCELLENT.
20-FOOT WINDS.......NORTH WINDS 10 TO 15 MPH WITH GUSTS TO AROUND
25 MPH.
RIDGE TOP WINDS.....NORTH AROUND 15 MPH.
CHC OF WETTING RAIN.35 PERCENT UNTIL 2400, THEN 50 PERCENT.
TRANSPORT WINDS.....NORTHEAST 15 TO 20 MPH.
MIXING HEIGHT.......1400-3400 FT AGL UNTIL 2400, THEN 600-1000 FT
AGL.
SMOKE DISPERSAL.....POOR.
WEDNESDAY
SKY/WEATHER.........MOSTLY CLOUDY THEN BECOMING PARTLY CLOUDY.
SHOWERS LIKELY IN THE MORNING. SLIGHT CHANCE OF
THUNDERSTORMS THROUGH THE DAY. CHANCE OF
SHOWERS IN THE AFTERNOON. CHANCE OF
PRECIPITATION 70 PERCENT.
CHANCE OF THUNDER...20 PERCENT.
MAX TEMPERATURE.....53-58.
24 HR TREND......3 DEGREES COOLER.
MIN HUMIDITY........59-65 PERCENT.
24 HR TREND......10 PERCENT WETTER.
20-FOOT WINDS.......NORTH WINDS AROUND 10 MPH WITH GUSTS TO AROUND
25 MPH.
RIDGE TOP WINDS.....NORTH AROUND 15 MPH.
CHC OF WETTING RAIN.37 PERCENT.
TRANSPORT WINDS.....NORTH AROUND 15 MPH.
MIXING HEIGHT.......1200-3200 FT AGL UNTIL 1200, THEN 4000-5600 FT
AGL.
SMOKE DISPERSAL.....POOR TO FAIR.
FORECAST DAYS 3 THROUGH 7...
WEDNESDAY NIGHT
PARTLY CLOUDY. CHANCE OF SHOWERS AND SLIGHT
CHANCE OF THUNDERSTORMS IN THE EVENING, THEN SLIGHT CHANCE OF
SHOWERS AFTER MIDNIGHT. LOWS IN THE LOWER 40S. WINDS GENERALLY
LESS THAN 10 MPH.
THURSDAY THROUGH SATURDAY
MOSTLY CLEAR. LOWS 42 TO 47. HIGHS
67 TO 72. WEST WINDS AROUND 10 MPH.
SUNDAY THROUGH MONDAY
MOSTLY CLEAR. LOWS IN THE MID 40S. HIGHS
69 TO 74.
WYZ300-162115-
CASPER MOUNTAIN-
103 PM MDT MON SEP 15 2025
THIS AFTERNOON
SKY/WEATHER.........PARTLY CLOUDY. ISOLATED THUNDERSTORMS THROUGH
THE DAY. ISOLATED SHOWERS EARLY IN THE EVENING.
SOME THUNDERSTORMS MAY BE SEVERE. CHANCE OF
PRECIPITATION 20 PERCENT.
CHANCE OF THUNDER...20 PERCENT.
MAX TEMPERATURE.....68-73.
24 HR TREND......4 DEGREES WARMER.
MIN HUMIDITY........27-33 PERCENT.
24 HR TREND......1 PERCENT WETTER.
20-FOOT WINDS.......WEST WINDS AROUND 20 MPH WITH GUSTS TO AROUND
30 MPH.
RIDGE TOP WINDS.....WEST AROUND 25 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....SOUTHWEST AROUND 25 MPH.
MIXING HEIGHT.......8800-10600 FT AGL.
SMOKE DISPERSAL.....EXCELLENT.
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY. SCATTERED SHOWERS IN THE
EVENING. ISOLATED THUNDERSTORMS THROUGH THE
NIGHT. ISOLATED SHOWERS AFTER MIDNIGHT. SOME
THUNDERSTORMS MAY BE SEVERE, THEN SOME
THUNDERSTORMS MAY PRODUCE GUSTY WINDS LATE IN
THE EVENING. SOME THUNDERSTORMS MAY PRODUCE
GUSTY WINDS EARLY IN THE MORNING. CHANCE OF
PRECIPITATION 40 PERCENT.
CHANCE OF THUNDER...20 PERCENT.
MIN TEMPERATURE.....42-47.
24 HR TREND......2 DEGREES COOLER.
MAX HUMIDITY........78-84 PERCENT.
24 HR TREND......19 PERCENT WETTER.
HUMIDITY RECOVERY...EXCELLENT.
20-FOOT WINDS.......NORTHWEST WINDS 10 TO 15 MPH WITH GUSTS TO
AROUND 35 MPH UNTIL 2400, THEN
DOWNSLOPE/DOWNVALLEY 4-7 MPH.
RIDGE TOP WINDS.....WEST AROUND 15 MPH UNTIL 2400, THEN NORTH.
CHC OF WETTING RAIN.LESS THAN 5 PERCENT.
TRANSPORT WINDS.....SOUTHWEST AROUND 15 MPH UNTIL 2400, THEN EAST.
MIXING HEIGHT.......2400-4400 FT AGL UNTIL 2400, THEN 200-400 FT
AGL.
SMOKE DISPERSAL.....FAIR TO GOOD UNTIL 2400, THEN POOR.
TUESDAY
SKY/WEATHER.........MOSTLY CLOUDY. ISOLATED THUNDERSTORMS IN THE
MORNING. SCATTERED SHOWERS THROUGH THE DAY.
SCATTERED THUNDERSTORMS IN THE AFTERNOON. SOME
THUNDERSTORMS MAY PRODUCE GUSTY WINDS EARLY IN
THE MORNING. SOME THUNDERSTORMS MAY PRODUCE
GUSTY WINDS IN THE AFTERNOON. CHANCE OF
PRECIPITATION 50 PERCENT.
CHANCE OF THUNDER...30 PERCENT.
MAX TEMPERATURE.....57-62.
24 HR TREND......11 DEGREES COOLER.
MIN HUMIDITY........62-68 PERCENT.
24 HR TREND......30 PERCENT WETTER.
20-FOOT WINDS.......WEST WINDS AROUND 10 MPH WITH GUSTS TO AROUND
25 MPH UNTIL 1200, THEN SOUTHEAST AND GUSTY.
RIDGE TOP WINDS.....WEST AROUND 15 MPH UNTIL 1200, THEN SOUTHEAST.
CHC OF WETTING RAIN.5 PERCENT UNTIL 1200, THEN 45 PERCENT.
TRANSPORT WINDS.....NORTHWEST AROUND 15 MPH.
MIXING HEIGHT.......200-2200 FT AGL UNTIL 1200, THEN 2400-4000 FT
AGL.
SMOKE DISPERSAL.....POOR.
TUESDAY NIGHT
SKY/WEATHER.........MOSTLY CLOUDY. SCATTERED THUNDERSTORMS IN THE
EVENING. SHOWERS LIKELY THROUGH THE NIGHT.
SLIGHT CHANCE OF THUNDERSTORMS AFTER MIDNIGHT.
SOME THUNDERSTORMS MAY PRODUCE GUSTY WINDS
EARLY IN THE EVENING. SOME THUNDERSTORMS MAY
PRODUCE GUSTY WINDS LATE IN THE EVENING. CHANCE
OF PRECIPITATION 70 PERCENT.
CHANCE OF THUNDER...30 PERCENT.
MIN TEMPERATURE.....42-47.
24 HR TREND......1 DEGREE WARMER.
MAX HUMIDITY........89-95 PERCENT.
24 HR TREND......14 PERCENT WETTER.
HUMIDITY RECOVERY...EXCELLENT.
20-FOOT WINDS.......NORTHEAST WINDS AROUND 10 MPH UNTIL 2100, THEN
DOWNSLOPE/DOWNVALLEY 4-7 MPH. GUSTS UP TO 15
MPH.
RIDGE TOP WINDS.....NORTHEAST AROUND 10 MPH.
CHC OF WETTING RAIN.55 PERCENT UNTIL 2400, THEN 70 PERCENT.
TRANSPORT WINDS.....NORTHEAST AROUND 10 MPH.
MIXING HEIGHT.......400-2400 FT AGL.
SMOKE DISPERSAL.....POOR.
WEDNESDAY
SKY/WEATHER.........CLOUDY. SLIGHT CHANCE OF THUNDERSTORMS UNTIL
LATE AFTERNOON. SHOWERS THROUGH THE DAY. CHANCE
OF THUNDERSTORMS LATE IN THE AFTERNOON. CHANCE
OF PRECIPITATION 80 PERCENT.
CHANCE OF THUNDER...30 PERCENT.
MAX TEMPERATURE.....52-57.
24 HR TREND......6 DEGREES COOLER.
MIN HUMIDITY........74-80 PERCENT.
24 HR TREND......18 PERCENT WETTER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH UNTIL 0900, THEN NORTH
AROUND 10 MPH. GUSTS UP TO 20 MPH.
RIDGE TOP WINDS.....NORTH 10 TO 15 MPH.
CHC OF WETTING RAIN.80 PERCENT.
TRANSPORT WINDS.....NORTH 10 TO 15 MPH.
MIXING HEIGHT.......400-2400 FT AGL UNTIL 1200, THEN 2400-3600 FT
AGL.
SMOKE DISPERSAL.....POOR.
FORECAST DAYS 3 THROUGH 7...
WEDNESDAY NIGHT
MOSTLY CLOUDY. CHANCE OF SHOWERS AND SLIGHT
CHANCE OF THUNDERSTORMS IN THE EVENING, THEN SLIGHT CHANCE OF
SHOWERS AFTER MIDNIGHT. LOWS IN THE LOWER 40S. WINDS GENERALLY
LESS THAN 10 MPH.
THURSDAY
MOSTLY CLEAR WITH SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS IN THE LOWER 40S. HIGHS AROUND 60. WINDS
GENERALLY LESS THAN 10 MPH.
FRIDAY
CLEAR. LOWS IN THE MID 40S. HIGHS IN THE MID 60S. WINDS
GENERALLY LESS THAN 10 MPH.
SATURDAY
MOSTLY CLEAR. LOWS IN THE UPPER 40S. HIGHS AROUND 70.
WINDS GENERALLY LESS THAN 10 MPH.
SUNDAY THROUGH MONDAY
MOSTLY CLEAR. LOWS IN THE MID 40S. HIGHS
66 TO 71.
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