Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS Riverton, WY
Issued by NWS Riverton, WY
890
FNUS55 KRIW 100930
FWFRIW
Fire Weather Planning Forecast for Western and Central Wyoming
National Weather Service Riverton WY
330 AM MDT Wed Sep 10 2025
.DISCUSSION...
...Yellowstone NP and Teton dispatch areas (includes fire weather
zones 140...414...415...and 416)...
There is a 15% chance for showers and thunderstorms this
afternoon, mainly over zones 140 and 415. Wind gusts of 40 to 50
mph will be the main threat. Fire weather conditions will be
elevated this afternoon, with southerly winds gusting up to 30 mph
and RH values of 20 to 25 percent. Scattered showers will be
possible across the dispatch area after midnight.
...Cody dispatch area (includes fire weather zones 275...276...
282...283...285...286...287...288...and 289)...
There is a 10 to 20% chance for showers and thunderstorms this
afternoon. Wind gusts of 40 to 50 mph will be the main threat.
Fire weather conditions will be elevated this afternoon, with
southerly winds gusting up to 30 mph and RH values of 20 to 25
percent. There is a 10% chance for showers, mainly over the
Bighorn and Wind River Basins through the overnight hours tonight.
RH recovery will be fair to poor along the west slopes of the
Bighorns and zone 287.
...Casper dispatch area (includes fire weather zones 277...278...
279...280...281...285...289...and 300)...
There is a 15% chance for showers and thunderstorms this
afternoon, mainly over zones 277, 278 and 279. Wind gusts of 40 to
50 mph will be the main threat. Fire weather conditions will be
elevated this afternoon, with southerly winds gusting up to 35 mph
and RH values of 15 to 25 percent. There is a 20 to 30% chance
for showers from zone 279 to 281 through the overnight hours
tonight. RH recovery will be fair along the east slopes of the
Bighorns.
...Thunderstorms imply strong gusty and erratic winds...
WYZ280-111130-
Natrona County/Casper BLM-
Including the cities of Casper and Midwest
330 AM MDT Wed Sep 10 2025
.TODAY...
Sky/weather.........Partly cloudy then becoming mostly sunny.
Slight chance of showers and thunderstorms late
in the afternoon. Chance of precipitation 20
percent.
Chance of thunder...0 percent.
Max temperature.....82-87.
24 hr trend......5 degrees warmer.
Min humidity........16-22 percent.
24 hr trend......3 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph until 0900, then
southwest 10 to 15 mph with gusts to around 25
mph.
Ridge top winds.....Southwest around 10 mph until 1200, then around
20 mph.
Chc of wetting rain.Zero percent.
Transport winds.....South around 10 mph until 1200, then southwest
around 20 mph.
Mixing Height.......1000-3000 ft agl until 1200, then 8200-10200 ft
agl.
Smoke dispersal.....Poor until 1200, then excellent.
.TONIGHT...
Sky/weather.........Partly cloudy.
Chance of thunder...0 percent.
Min temperature.....56-61.
24 hr trend......4 degrees warmer.
Max humidity........56-62 percent.
24 hr trend......12 percent drier.
Humidity recovery...Moderate.
20-foot winds.......South winds 10 to 15 mph with gusts to around
30 mph.
Ridge top winds.....South 15 to 20 mph.
Chc of wetting rain.Zero percent.
Transport winds.....South around 20 mph.
Mixing Height.......4600-6600 ft agl until 2400, then 400-800 ft
agl.
Smoke dispersal.....Good to very good until 2400, then poor.
.THURSDAY...
Sky/weather.........Mostly sunny then becoming partly cloudy.
Slight chance of showers and thunderstorms late
in the afternoon. Chance of precipitation 20
percent.
Chance of thunder...10 percent.
Max temperature.....80-85.
24 hr trend......2 degrees cooler.
Min humidity........17-23 percent.
24 hr trend......3 percent wetter.
20-foot winds.......Southwest winds 15 to 20 mph. Gusts up to 30
mph until 1200, then 40 mph.
Ridge top winds.....Southwest 20 to 25 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest around 20 mph until 1200, then around
30 mph.
Mixing Height.......2200-4200 ft agl until 1200, then 8200-10200 ft
agl.
Smoke dispersal.....Good until 1200, then excellent.
.Forecast days 3 through 7......
.THURSDAY NIGHT...Partly cloudy. Lows in the lower 50s. Southwest
winds around 10 mph.
.FRIDAY...Partly cloudy. Chance of showers and slight chance of
thunderstorms. Lows in the upper 40s. Highs around 80. Southwest
winds around 10 mph.
.SATURDAY...Partly cloudy with chance of showers and slight
chance of thunderstorms. Lows in the mid 40s. Highs in the lower
70s. West winds around 10 mph.
.SUNDAY...Mostly clear. Lows in the upper 40s. Highs in the mid
70s. Southwest winds around 10 mph.
.MONDAY...Mostly clear. Lows in the upper 40s. Highs in the upper
70s.
.TUESDAY...Partly cloudy. Chance of showers and slight chance of
thunderstorms in the afternoon. Highs in the mid 70s.
$$
WYZ283-111130-
Upper Wind River Basin/Wind River Basin-
Including the cities of Crowheart, Lander, Riverton, and Shoshoni
330 AM MDT Wed Sep 10 2025
.TODAY...
Sky/weather.........Partly cloudy.
Chance of thunder...0 percent.
Max temperature.....78-83.
24 hr trend......5 degrees warmer.
Min humidity........17-23 percent.
24 hr trend......5 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph until 1200, then south
around 10 mph with gusts to around 30 mph until
1500, then around 20 mph with gusts to around
30 mph.
Ridge top winds.....Southwest around 10 mph until 1200, then south
around 20 mph.
Chc of wetting rain.Zero percent.
Transport winds.....South around 10 mph until 1200, then around 20
mph.
Mixing Height.......600-2600 ft agl until 1200, then 7000-9000 ft
agl.
Smoke dispersal.....Poor until 1200, then very good to excellent.
.TONIGHT...
Sky/weather.........Partly cloudy. Slight chance of showers and
thunderstorms after midnight. Chance of
precipitation 20 percent.
Chance of thunder...10 percent.
Min temperature.....51-56.
24 hr trend......3 degrees warmer.
Max humidity........60-66 percent.
24 hr trend......9 percent drier.
Humidity recovery...Good.
20-foot winds.......Southwest winds 10 to 15 mph. Gusts up to 25
mph until 2400, then 35 mph.
Ridge top winds.....Southwest 15 to 20 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest 15 to 20 mph.
Mixing Height.......4600-6600 ft agl until 2400, then 600-800 ft
agl.
Smoke dispersal.....Very good until 2400, then poor.
.THURSDAY...
Sky/weather.........Partly cloudy. Slight chance of showers in the
morning. Chance of showers and slight chance of
thunderstorms in the afternoon. Chance of
precipitation 50 percent.
Chance of thunder...20 percent.
Max temperature.....75-80.
24 hr trend......4 degrees cooler.
Min humidity........25-31 percent.
24 hr trend......6 percent wetter.
20-foot winds.......Southwest winds 15 to 20 mph with gusts to
around 35 mph.
Ridge top winds.....Southwest 20 to 25 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest around 20 mph until 1200, then around
30 mph.
Mixing Height.......2400-4400 ft agl until 1200, then 6400-8400 ft
agl.
Smoke dispersal.....Fair to good until 1200, then excellent.
.Forecast days 3 through 7......
.THURSDAY NIGHT...Partly cloudy. Slight chance of showers after
midnight. Lows in the upper 40s. West winds around 10 mph.
.FRIDAY THROUGH SATURDAY...Partly cloudy with chance of showers
and slight chance of thunderstorms. Lows 44 to 49. Highs 71 to
76. Winds generally less than 10 mph.
.SUNDAY...Mostly clear. Slight chance of showers and
thunderstorms. Lows in the upper 40s. Highs in the lower 70s.
Winds generally less than 10 mph.
.MONDAY...Mostly clear. Slight chance of showers and
thunderstorms. Lows in the upper 40s. Highs in the upper 70s.
.TUESDAY...Partly cloudy. Slight chance of showers in the
morning, then chance of showers and slight chance of
thunderstorms in the afternoon. Highs in the lower 70s.
$$
WYZ285-111130-
South Bighorn Mountains-
330 AM MDT Wed Sep 10 2025
.TODAY...
Sky/weather.........Partly cloudy then becoming mostly sunny.
Slight chance of showers and thunderstorms
early in the afternoon. Chance of precipitation
20 percent.
Chance of thunder...0 percent.
Max temperature.....76-81.
24 hr trend......5 degrees warmer.
Min humidity........18-24 percent.
24 hr trend......3 percent drier.
20-foot winds.......Southwest winds 10 to 15 mph with gusts to
around 25 mph.
Ridge top winds.....Southwest 15 to 20 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest 15 to 20 mph.
Mixing Height.......1200-3200 ft agl until 1200, then 7200-9200 ft
agl.
Smoke dispersal.....Poor until 1200, then very good to excellent.
.TONIGHT...
Sky/weather.........Partly cloudy.
Chance of thunder...0 percent.
Min temperature.....54-59.
24 hr trend......4 degrees warmer.
Max humidity........49-55 percent.
24 hr trend......16 percent drier.
Humidity recovery...Moderate.
20-foot winds.......Southwest winds 10 to 15 mph. Gusts up to 25
mph until 2400, then 35 mph.
Ridge top winds.....Southwest 15 to 20 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest 15 to 20 mph.
Mixing Height.......3800-5800 ft agl until 2400, then 200-600 ft
agl.
Smoke dispersal.....Good until 2400, then poor.
.THURSDAY...
Sky/weather.........Partly cloudy. 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.....73-78.
24 hr trend......3 degrees cooler.
Min humidity........21-27 percent.
24 hr trend......4 percent wetter.
20-foot winds.......Southwest winds around 20 mph. Gusts up to 40
mph until 1200, then 30 mph.
Ridge top winds.....Southwest around 25 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest 25 to 30 mph.
Mixing Height.......1600-3600 ft agl until 1200, then 6800-8800 ft
agl.
Smoke dispersal.....Fair to good until 1200, then excellent.
.Forecast days 3 through 7......
.THURSDAY NIGHT...Partly cloudy. Lows in the lower 50s. Southwest
winds around 10 mph.
.FRIDAY...Partly cloudy. Chance of showers and slight chance of
thunderstorms. Lows in the upper 40s. Highs in the lower 70s.
West winds around 10 mph.
.SATURDAY...Partly cloudy. Chance of showers and slight chance of
thunderstorms. Lows in the mid 40s. Highs in the lower 60s.
Northwest winds around 10 mph.
.SUNDAY...Mostly clear. Slight chance of showers and
thunderstorms. Lows in the upper 40s. Highs in the mid 60s. West
winds around 10 mph.
.MONDAY...Mostly clear. Slight chance of showers and
thunderstorms. Lows in the upper 40s. Highs in the lower 70s.
.TUESDAY...Partly cloudy. Slight chance of showers in the
morning, then chance of showers and slight chance of
thunderstorms in the afternoon. Highs in the mid 60s.
$$
WYZ281-111130-
Johnson County/Casper BLM-
Including the cities of Buffalo and Kaycee
330 AM MDT Wed Sep 10 2025
.TODAY...
Sky/weather.........Partly cloudy. Slight chance of showers early
in the afternoon. Slight chance of
thunderstorms late in the afternoon. Chance of
precipitation 20 percent.
Chance of thunder...10 percent.
Max temperature.....80-85.
24 hr trend......6 degrees warmer.
Min humidity........19-25 percent.
24 hr trend......2 percent drier.
20-foot winds.......South winds 10 to 15 mph. Gusts up to 15 mph
until 1200, then 25 mph.
Ridge top winds.....South around 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....South 15 to 20 mph.
Mixing Height.......600-2600 ft agl until 1200, then 7200-9200 ft
agl.
Smoke dispersal.....Poor until 1200, then very good to excellent.
.TONIGHT...
Sky/weather.........Partly cloudy. Slight chance of showers early
in the evening. Chance of showers 20 percent.
Chance of thunder...0 percent.
Min temperature.....57-62.
24 hr trend......4 degrees warmer.
Max humidity........55-61 percent.
24 hr trend......10 percent drier.
Humidity recovery...Moderate.
20-foot winds.......South winds 10 to 15 mph with gusts to around
35 mph.
Ridge top winds.....South around 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....South 15 to 20 mph.
Mixing Height.......3400-5400 ft agl until 2400, then 600-800 ft
agl.
Smoke dispersal.....Fair to good until 2400, then poor.
.THURSDAY...
Sky/weather.........Partly cloudy. Slight chance of showers and
thunderstorms late in the afternoon. Chance of
precipitation 20 percent.
Chance of thunder...10 percent.
Max temperature.....80-85.
24 hr trend......1 degree cooler.
Min humidity........22-28 percent.
24 hr trend......2 percent wetter.
20-foot winds.......Southwest winds 15 to 20 mph with gusts to
around 30 mph.
Ridge top winds.....Southwest around 20 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest 20 to 25 mph.
Mixing Height.......2400-4400 ft agl until 1200, then 8000-10000 ft
agl.
Smoke dispersal.....Good until 1200, then excellent.
.Forecast days 3 through 7......
.THURSDAY NIGHT...Partly cloudy. Lows in the lower 50s. West
winds around 10 mph.
.FRIDAY...Partly cloudy. Chance of showers and slight chance of
thunderstorms. Lows in the lower 50s. Highs in the lower 80s.
Winds generally less than 10 mph.
.SATURDAY...Not as warm. Partly cloudy. Chance of showers and
slight chance of thunderstorms. Lows in the upper 40s. Highs
around 70. Winds generally less than 10 mph.
.SUNDAY...Partly cloudy with slight chance of showers and
thunderstorms. Lows in the upper 40s. Highs in the mid 70s. Winds
generally less than 10 mph.
.MONDAY...Mostly clear. Slight chance of showers and
thunderstorms. Lows around 50. Highs around 80.
.TUESDAY...Partly cloudy. Slight chance of showers in the
morning, then chance of showers and slight chance of
thunderstorms in the afternoon. Highs in the mid 70s.
$$
WYZ282-111130-
South Bighorn Basin/Worland BLM-
Including the cities of Ten Sleep, Thermopolis, and Worland
330 AM MDT Wed Sep 10 2025
.TODAY...
Sky/weather.........Partly cloudy.
Chance of thunder...0 percent.
Max temperature.....78-83.
24 hr trend......4 degrees warmer.
Min humidity........17-23 percent.
24 hr trend......2 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph until 1200, then south
10 to 15 mph with gusts to around 25 mph.
Ridge top winds.....South 10 to 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....South around 10 mph until 1200, then around 20
mph.
Mixing Height.......600-2600 ft agl until 1200, then 6800-8800 ft
agl.
Smoke dispersal.....Poor until 1200, then very good.
.TONIGHT...
Sky/weather.........Partly cloudy.
Chance of thunder...0 percent.
Min temperature.....53-58.
24 hr trend......2 degrees warmer.
Max humidity........51-57 percent.
24 hr trend......13 percent drier.
Humidity recovery...Moderate.
20-foot winds.......Southwest winds around 10 mph until 2100, then
downslope/downvalley 4-7 mph until 0300, then
south around 10 mph. Gusts up to 25 mph.
Ridge top winds.....West around 15 mph until 2400, then south.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest around 15 mph.
Mixing Height.......4000-6000 ft agl until 2400, then 400-800 ft
agl.
Smoke dispersal.....Good until 2400, then poor.
.THURSDAY...
Sky/weather.........Partly cloudy. Slight chance of showers and
thunderstorms in the afternoon. Chance of
precipitation 20 percent.
Chance of thunder...20 percent.
Max temperature.....76-81.
24 hr trend......2 degrees cooler.
Min humidity........21-27 percent.
24 hr trend......3 percent wetter.
20-foot winds.......South winds 10 to 15 mph with gusts to around
25 mph.
Ridge top winds.....South 15 to 20 mph.
Chc of wetting rain.Zero percent.
Transport winds.....South around 15 mph until 1200, then southwest
around 25 mph.
Mixing Height.......1800-3800 ft agl until 1200, then 7200-9200 ft
agl.
Smoke dispersal.....Poor to fair until 1200, then excellent.
.Forecast days 3 through 7......
.THURSDAY NIGHT...Partly cloudy. Slight chance of showers and
thunderstorms in the evening. Lows in the lower 50s. Southwest
winds around 10 mph.
.FRIDAY...Partly cloudy. Chance of showers and slight chance of
thunderstorms. Lows around 50. Highs around 80. Winds generally
less than 10 mph.
.SATURDAY...Partly cloudy. Chance of showers and slight chance of
thunderstorms. Lows in the upper 40s. Highs in the lower 70s.
Winds generally less than 10 mph.
.SUNDAY...Mostly clear. Slight chance of showers and
thunderstorms. Lows in the upper 40s. Highs in the mid 70s. Winds
generally less than 10 mph.
.MONDAY...Mostly clear. Slight chance of showers and
thunderstorms. Lows in the upper 40s. Highs around 80.
.TUESDAY...Partly cloudy. Slight chance of showers in the
morning, then chance of showers and slight chance of
thunderstorms in the afternoon. Highs in the mid 70s.
$$
WYZ275-111130-
North Bighorn Basin/Worland BLM-
Including the cities of Greybull, Lovell, and Powell
330 AM MDT Wed Sep 10 2025
.TODAY...
Sky/weather.........Mostly cloudy then becoming partly cloudy.
Slight chance of showers and thunderstorms late
in the afternoon. Chance of precipitation 20
percent.
Chance of thunder...10 percent.
Max temperature.....75-80.
24 hr trend......3 degrees warmer.
Min humidity........20-26 percent.
24 hr trend......2 percent wetter.
20-foot winds.......Upslope/upvalley 5-9 mph until 1200, then south
10 to 15 mph with gusts to around 30 mph.
Ridge top winds.....South 10 to 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Southeast around 10 mph until 1200, then south
around 20 mph.
Mixing Height.......600-2600 ft agl until 1200, then 5800-7800 ft
agl.
Smoke dispersal.....Poor until 1200, then good to very good.
.TONIGHT...
Sky/weather.........Partly cloudy. Slight chance of showers and
thunderstorms early in the evening. Chance of
precipitation 20 percent.
Chance of thunder...10 percent.
Min temperature.....53-58.
24 hr trend......1 degree warmer.
Max humidity........54-60 percent.
24 hr trend......4 percent drier.
Humidity recovery...Moderate.
20-foot winds.......Northwest winds 10 to 15 mph with gusts to
around 30 mph until 2400, then south with gusts
to around 15 mph.
Ridge top winds.....Northwest around 15 mph until 2400, then south.
Chc of wetting rain.Zero percent.
Transport winds.....Northwest around 15 mph until 2400, then south.
Mixing Height.......2600-4600 ft agl until 2400, then 400-800 ft
agl.
Smoke dispersal.....Fair to good until 2400, then poor.
.THURSDAY...
Sky/weather.........Partly cloudy. Slight chance of showers in the
morning, then chance of showers and slight
chance of thunderstorms in the afternoon.
Chance of precipitation 50 percent.
Chance of thunder...20 percent.
Max temperature.....73-78.
24 hr trend......3 degrees cooler.
Min humidity........25-31 percent.
24 hr trend......4 percent wetter.
20-foot winds.......South winds around 10 mph until 1500, then
southwest. Gusts up to 25 mph.
Ridge top winds.....South 10 to 15 mph.
Chc of wetting rain.Less than 5 percent.
Transport winds.....South 15 to 20 mph.
Mixing Height.......1200-3200 ft agl until 1200, then 5000-7000 ft
agl.
Smoke dispersal.....Poor until 1200, then good to very good.
.Forecast days 3 through 7......
.THURSDAY NIGHT...Partly cloudy. Slight chance of showers and
thunderstorms in the evening. Lows around 50. Southwest winds
around 10 mph.
.FRIDAY...Partly cloudy. Chance of showers and slight chance of
thunderstorms. Lows in the lower 50s. Highs in the upper 70s.
Winds generally less than 10 mph.
.SATURDAY...Mostly cloudy. Chance of showers and thunderstorms.
Lows in the upper 40s. Highs in the lower 70s. Winds generally
less than 10 mph.
.SUNDAY...Partly cloudy with slight chance of showers and
thunderstorms. Lows around 50. Highs in the mid 70s. Winds
generally less than 10 mph.
.MONDAY...Partly cloudy. Slight chance of showers and
thunderstorms. Lows around 50. Highs in the upper 70s.
.TUESDAY...Partly cloudy. Chance of showers in the morning, then
chance of showers and slight chance of thunderstorms in the
afternoon. Highs in the lower 70s.
$$
WYZ276-111130-
Cody Foothills-
Including the cities of Clark, Cody, and Meeteetse
330 AM MDT Wed Sep 10 2025
.TODAY...
Sky/weather.........Mostly cloudy then becoming partly cloudy.
Chance of showers and slight chance of
thunderstorms in the afternoon. Chance of
precipitation 50 percent.
Chance of thunder...20 percent.
Max temperature.....76-81.
24 hr trend......3 degrees warmer.
Min humidity........24-30 percent.
24 hr trend......2 percent wetter.
20-foot winds.......Upslope/upvalley 5-9 mph until 1200, then
southeast 10 to 15 mph with gusts to around 25
mph.
Ridge top winds.....Southeast 10 to 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....South around 10 mph until 1200, then around 20
mph.
Mixing Height.......600-2600 ft agl until 1200, then 6200-8200 ft
agl.
Smoke dispersal.....Poor until 1200, then very good.
.TONIGHT...
Sky/weather.........Mostly cloudy then becoming partly cloudy.
Chance of showers and slight chance of
thunderstorms in the evening. Chance of
precipitation 30 percent.
Chance of thunder...20 percent.
Min temperature.....52-57.
24 hr trend......2 degrees warmer.
Max humidity........54-60 percent.
24 hr trend......6 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.
Ridge top winds.....Southwest around 10 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West around 10 mph.
Mixing Height.......1600-3600 ft agl until 2400, then 600-1000 ft
agl.
Smoke dispersal.....Poor.
.THURSDAY...
Sky/weather.........Partly cloudy. Slight chance of showers in the
morning, then chance of showers and
thunderstorms in the afternoon. Chance of
precipitation 50 percent.
Chance of thunder...30 percent.
Max temperature.....71-76.
24 hr trend......5 degrees cooler.
Min humidity........35-41 percent.
24 hr trend......8 percent wetter.
20-foot winds.......West winds around 10 mph until 0900, then
upslope/upvalley 5-9 mph until 1200, then
northwest around 10 mph. Gusts up to 20 mph.
Ridge top winds.....West 10 to 15 mph.
Chc of wetting rain.Zero percent until 1200, then 40 percent.
Transport winds.....Southwest around 15 mph.
Mixing Height.......1400-3400 ft agl until 1200, then 3400-5400 ft
agl.
Smoke dispersal.....Poor to fair.
.Forecast days 3 through 7......
.THURSDAY NIGHT...Partly cloudy. Slight chance of showers and
thunderstorms in the evening. Lows in the upper 40s. West winds
around 10 mph.
.FRIDAY...Partly cloudy. Chance of showers and slight chance of
thunderstorms. Lows in the upper 40s. Highs in the lower 70s.
Winds generally less than 10 mph.
.SATURDAY...Mostly cloudy. Showers likely and slight chance of
thunderstorms. Lows in the upper 40s. Highs in the upper 60s.
Winds generally less than 10 mph.
.SUNDAY...Partly cloudy with slight chance of showers and
thunderstorms. Lows in the upper 40s. Highs around 70. Winds
generally less than 10 mph.
.MONDAY...Partly cloudy. Chance of showers and slight chance of
thunderstorms. Lows in the upper 40s. Highs in the lower 70s.
.TUESDAY...Partly cloudy. Slight chance of showers in the
morning, then chance of showers and slight chance of
thunderstorms in the afternoon. Highs in the upper 60s.
$$
WYZ287-111130-
Owl Creek Mountains-
330 AM MDT Wed Sep 10 2025
.TODAY...
Sky/weather.........Partly cloudy.
Chance of thunder...0 percent.
Max temperature.....76-81.
24 hr trend......4 degrees warmer.
Min humidity........17-23 percent.
24 hr trend......2 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph until 0900, then south
10 to 15 mph with gusts to around 25 mph.
Ridge top winds.....South around 10 mph until 1200, then around 20
mph.
Chc of wetting rain.Zero percent.
Transport winds.....South 15 to 20 mph.
Mixing Height.......400-2400 ft agl until 1200, then 5800-7800 ft
agl.
Smoke dispersal.....Poor until 1200, then very good.
.TONIGHT...
Sky/weather.........Partly cloudy.
Chance of thunder...0 percent.
Min temperature.....52-57.
24 hr trend......2 degrees warmer.
Max humidity........49-55 percent.
24 hr trend......10 percent drier.
Humidity recovery...Moderate.
20-foot winds.......Southwest winds around 10 mph until 2100, then
downslope/downvalley 4-7 mph until 2400, then
southwest 10 to 15 mph. Gusts up to 30 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 200-800 ft
agl.
Smoke dispersal.....Good until 2400, then poor.
.THURSDAY...
Sky/weather.........Partly cloudy. Slight chance of showers in the
morning, then chance of showers and slight
chance of thunderstorms in the afternoon.
Chance of precipitation 50 percent.
Chance of thunder...20 percent.
Max temperature.....70-75.
24 hr trend......4 degrees cooler.
Min humidity........23-29 percent.
24 hr trend......4 percent wetter.
20-foot winds.......Southwest winds 10 to 15 mph with gusts to
around 30 mph.
Ridge top winds.....Southwest 15 to 20 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest around 15 mph until 1200, then around
25 mph.
Mixing Height.......1600-3600 ft agl until 1200, then 6600-8600 ft
agl.
Smoke dispersal.....Poor to fair until 1200, then excellent.
.Forecast days 3 through 7......
.THURSDAY NIGHT...Partly cloudy. Slight chance of showers and
thunderstorms in the evening. Lows around 50. West winds around
10 mph.
.FRIDAY...Partly cloudy. Chance of showers and slight chance of
thunderstorms. Lows in the upper 40s. Highs in the lower 70s.
Winds generally less than 10 mph.
.SATURDAY...Partly cloudy with showers likely and slight chance
of thunderstorms. Lows in the mid 40s. Highs in the mid 60s.
Winds generally less than 10 mph.
.SUNDAY...Mostly clear. Slight chance of showers and
thunderstorms. Lows in the upper 40s. Highs in the upper 60s.
Winds generally less than 10 mph.
.MONDAY...Mostly clear. Slight chance of showers and
thunderstorms. Lows in the upper 40s. Highs in the lower 70s.
.TUESDAY...Partly cloudy. Slight chance of showers in the
morning, then chance of showers and slight chance of
thunderstorms in the afternoon. Highs in the mid 60s.
$$
WYZ286-111130-
Absaroka Mountains/North Shoshone NF-
Including the city of Pahaska
330 AM MDT Wed Sep 10 2025
.TODAY...
Sky/weather.........Mostly cloudy then becoming partly cloudy.
Slight chance of showers in the morning. Chance
of showers and slight chance of thunderstorms
in the afternoon. Chance of precipitation 50
percent.
Chance of thunder...20 percent.
Max temperature.....67-72.
24 hr trend......2 degrees warmer.
Min humidity........27-33 percent.
24 hr trend......2 percent wetter.
20-foot winds.......Upslope/upvalley 5-9 mph until 1200, then south
10 to 15 mph. Gusts up to 25 mph.
Ridge top winds.....South 10 to 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....South around 10 mph until 1200, then around 20
mph.
Mixing Height.......1600-3600 ft agl until 1200, then 6800-8800 ft
agl.
Smoke dispersal.....Poor to fair until 1200, then very good.
.TONIGHT...
Sky/weather.........Mostly cloudy then becoming partly cloudy.
Chance of showers in the evening. Slight chance
of thunderstorms through the night. Slight
chance of showers after midnight. Chance of
precipitation 50 percent.
Chance of thunder...20 percent.
Min temperature.....46-51.
24 hr trend......2 degrees warmer.
Max humidity........68-74 percent.
24 hr trend......14 percent drier.
Humidity recovery...Good.
20-foot winds.......Southwest winds around 10 mph with gusts to
around 25 mph until 2100, then
downslope/downvalley 4-7 mph until 0300, then
west around 10 mph with gusts to around 15 mph.
Ridge top winds.....Southwest around 10 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest around 10 mph.
Mixing Height.......2000-4000 ft agl until 2400, then 400-1000 ft
agl.
Smoke dispersal.....Poor.
.THURSDAY...
Sky/weather.........Partly cloudy. Chance of showers in the
morning. Slight chance of thunderstorms late in
the morning, then showers likely and chance of
thunderstorms in the afternoon. Chance of
precipitation 70 percent.
Chance of thunder...30 percent.
Max temperature.....62-67.
24 hr trend......7 degrees cooler.
Min humidity........38-44 percent.
24 hr trend......9 percent wetter.
20-foot winds.......Southwest winds 10 to 15 mph with gusts to
around 25 mph.
Ridge top winds.....Southwest 15 to 20 mph.
Chc of wetting rain.5 percent until 1200, then 50 percent.
Transport winds.....Southwest 15 to 20 mph.
Mixing Height.......1800-3800 ft agl until 1200, then 4000-6000 ft
agl.
Smoke dispersal.....Fair to good.
.Forecast days 3 through 7......
.THURSDAY NIGHT...Partly cloudy. Slight chance of showers and
thunderstorms in the evening. Lows in the lower 40s. West winds
around 10 mph.
.FRIDAY...Partly cloudy with showers likely and slight chance of
thunderstorms. Lows around 40. Highs in the lower 60s. Winds
generally less than 10 mph.
.SATURDAY...Mostly cloudy. Showers likely and chance of
thunderstorms. Lows around 40. Highs in the upper 50s. West winds
around 10 mph.
.SUNDAY...Partly cloudy with chance of showers and slight chance
of thunderstorms. Lows in the lower 40s. Highs in the upper 50s.
West winds around 10 mph.
.MONDAY THROUGH TUESDAY...Partly cloudy with chance of showers
and slight chance of thunderstorms. Lows in the lower 40s. Highs
57 to 62.
$$
WYZ140-111130-
Yellowstone National Park-
Including the cities of Lake, Mammoth, and Old Faithful
330 AM MDT Wed Sep 10 2025
.TODAY...
Sky/weather.........Partly cloudy then becoming mostly cloudy.
Slight chance of showers and thunderstorms in
the afternoon. Chance of precipitation 20
percent.
Chance of thunder...10 percent.
Max temperature.....68-73.
24 hr trend......1 degree warmer.
Min humidity........24-30 percent.
24 hr trend......Unchanged.
20-foot winds.......Upslope/upvalley 5-9 mph until 0900, then south
10 to 15 mph. Gusts up to 25 mph.
Ridge top winds.....South 15 to 20 mph.
Chc of wetting rain.Zero percent.
Transport winds.....South 15 to 20 mph.
Mixing Height.......1600-3600 ft agl until 1200, then 8200-10200 ft
agl.
Smoke dispersal.....Poor to fair until 1200, then excellent.
.TONIGHT...
Sky/weather.........Mostly cloudy. Slight chance of showers and
thunderstorms early in the evening. Slight
chance of showers and thunderstorms after
midnight, then chance of showers early in the
morning. Chance of precipitation 40 percent.
Chance of thunder...20 percent.
Min temperature.....41-46.
24 hr trend......1 degree warmer.
Max humidity........81-87 percent.
24 hr trend......5 percent drier.
Humidity recovery...Excellent.
20-foot winds.......South winds around 10 mph until 2100, then
downslope/downvalley 4-7 mph until 2400, then
southeast around 10 mph. Gusts up to 25 mph.
Ridge top winds.....South around 10 mph.
Chc of wetting rain.Zero percent until 2400, then 10 percent.
Transport winds.....South around 15 mph.
Mixing Height.......2600-4600 ft agl until 2400, then 400-800 ft
agl.
Smoke dispersal.....Fair to good until 2400, then poor.
.THURSDAY...
Sky/weather.........Partly cloudy. Chance of showers in the
morning, then showers likely and chance of
thunderstorms in the afternoon. Chance of
precipitation 70 percent.
Chance of thunder...30 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 0900, then south
around 10 mph. Gusts up to 25 mph.
Ridge top winds.....Southeast around 10 mph until 1200, then
southwest.
Chc of wetting rain.10 percent until 1200, then 50 percent.
Transport winds.....South 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......
.THURSDAY NIGHT...Mostly clear. Slight chance of showers and
thunderstorms in the evening. Lows in the mid 30s. Winds
generally less than 10 mph.
.FRIDAY...Partly cloudy with chance of showers and slight chance
of thunderstorms. Lows in the mid 30s. Highs in the lower 60s.
Winds generally less than 10 mph.
.SATURDAY...Mostly cloudy with showers likely and slight chance
of thunderstorms. Lows in the upper 30s. Highs in the upper 50s.
Winds generally less than 10 mph.
.SUNDAY...Partly cloudy with chance of showers and slight chance
of thunderstorms. Lows in the mid 30s. Highs in the upper 50s.
Winds generally less than 10 mph.
.MONDAY THROUGH TUESDAY...Partly cloudy with chance of showers
and slight chance of thunderstorms. Lows in the mid 30s. Highs
59 to 64.
$$
WYZ415-111130-
North Zone Bridger Teton NF and Grand Teton NP-
Including the cities of Jackson and Moran
330 AM MDT Wed Sep 10 2025
.TODAY...
Sky/weather.........Mostly cloudy then becoming partly cloudy.
Slight chance of showers and thunderstorms
early in the afternoon. Chance of precipitation
20 percent.
Chance of thunder...10 percent.
Max temperature.....67-72.
24 hr trend......3 degrees warmer.
Min humidity........25-31 percent.
24 hr trend......6 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph until 0900, then south
10 to 15 mph. Gusts up to 25 mph.
Ridge top winds.....South 15 to 20 mph.
Chc of wetting rain.Zero percent.
Transport winds.....South 15 to 20 mph.
Mixing Height.......1600-3600 ft agl until 1200, then 7600-9600 ft
agl.
Smoke dispersal.....Poor to fair until 1200, then very good to
excellent.
.TONIGHT...
Sky/weather.........Mostly cloudy. Slight chance of showers in the
evening. Slight chance of thunderstorms through
the night. Chance of showers after midnight.
Chance of precipitation 40 percent.
Chance of thunder...20 percent.
Min temperature.....40-45.
24 hr trend......Unchanged.
Max humidity........82-88 percent.
24 hr trend......2 percent drier.
Humidity recovery...Excellent.
20-foot winds.......South winds around 10 mph with gusts to around
25 mph until 2100, then downslope/downvalley
4-7 mph.
Ridge top winds.....Southeast around 10 mph.
Chc of wetting rain.Zero percent until 2400, then 10 percent.
Transport winds.....South around 10 mph.
Mixing Height.......2600-4600 ft agl until 2400, then 400-1000 ft
agl.
Smoke dispersal.....Poor to fair until 2400, then poor.
.THURSDAY...
Sky/weather.........Partly cloudy. Chance of showers in the
morning. Slight chance of thunderstorms late in
the morning, then showers likely and chance of
thunderstorms in the afternoon. Chance of
precipitation 70 percent.
Chance of thunder...40 percent.
Max temperature.....59-64.
24 hr trend......8 degrees cooler.
Min humidity........47-53 percent.
24 hr trend......17 percent wetter.
20-foot winds.......Upslope/upvalley 5-9 mph until 0900, then south
around 10 mph. Gusts up to 20 mph.
Ridge top winds.....Southeast around 10 mph until 1200, then south.
Chc of wetting rain.20 percent until 1200, then 60 percent.
Transport winds.....South 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......
.THURSDAY NIGHT...Mostly clear. Slight chance of showers and
thunderstorms in the evening. Lows in the upper 30s. Winds
generally less than 10 mph.
.FRIDAY...Partly cloudy with showers likely and slight chance of
thunderstorms. Lows in the upper 30s. Highs in the lower 60s.
Winds generally less than 10 mph.
.SATURDAY...Mostly cloudy. Showers likely and chance of
thunderstorms. Lows in the upper 30s. Highs in the mid 50s. Winds
generally less than 10 mph.
.SUNDAY...Partly cloudy with slight chance of showers and
thunderstorms. Lows in the upper 30s. Highs in the upper 50s.
Winds generally less than 10 mph.
.MONDAY...Partly cloudy with chance of showers and slight chance
of thunderstorms. Lows in the upper 30s. Highs in the lower 60s.
.TUESDAY...Partly cloudy. Chance of showers in the morning, then
chance of showers and slight chance of thunderstorms in the
afternoon. Highs around 60.
$$
WYZ416-111130-
West Wind River Mountains/East Zone Bridger Teton NF-
330 AM MDT Wed Sep 10 2025
.TODAY...
Sky/weather.........Partly cloudy. Slight chance of showers and
thunderstorms early in the afternoon. Chance of
precipitation 20 percent.
Chance of thunder...20 percent.
Max temperature.....66-71.
24 hr trend......4 degrees warmer.
Min humidity........25-31 percent.
24 hr trend......8 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph until 0900, then
southeast around 10 mph with higher gusts until
1200, then south around 20 mph with gusts to
around 30 mph.
Ridge top winds.....Southeast around 15 mph until 1200, then south
around 25 mph.
Chc of wetting rain.Zero percent.
Transport winds.....South around 15 mph until 1200, then around 25
mph.
Mixing Height.......1800-3800 ft agl until 1200, then 7400-9400 ft
agl.
Smoke dispersal.....Poor to fair until 1200, then excellent.
.TONIGHT...
Sky/weather.........Partly cloudy. Chance of showers and slight
chance of thunderstorms. Chance of
precipitation 50 percent.
Chance of thunder...20 percent.
Min temperature.....40-45.
24 hr trend......1 degree cooler.
Max humidity........81-87 percent.
24 hr trend......7 percent wetter.
Humidity recovery...Excellent.
20-foot winds.......Southeast winds 10 to 15 mph. Gusts up to 30
mph until 2400, then 20 mph.
Ridge top winds.....Southeast around 15 mph.
Chc of wetting rain.Less than 5 percent.
Transport winds.....South around 15 mph.
Mixing Height.......3000-5000 ft agl until 2400, then 400-800 ft
agl.
Smoke dispersal.....Good until 2400, then poor.
.THURSDAY...
Sky/weather.........Partly cloudy. Chance of showers in the
morning. Slight chance of thunderstorms late in
the morning, then showers likely and chance of
thunderstorms in the afternoon. Chance of
precipitation 70 percent.
Chance of thunder...40 percent.
Max temperature.....57-62.
24 hr trend......8 degrees cooler.
Min humidity........49-55 percent.
24 hr trend......20 percent wetter.
20-foot winds.......South winds 10 to 15 mph until 1500, then
southwest. Gusts up to 25 mph.
Ridge top winds.....South 15 to 20 mph.
Chc of wetting rain.15 percent until 1200, then 40 percent.
Transport winds.....South around 15 mph until 1200, then southwest
around 25 mph.
Mixing Height.......1400-3400 ft agl until 1200, then 3800-5600 ft
agl.
Smoke dispersal.....Fair to good.
.Forecast days 3 through 7......
.THURSDAY NIGHT...Partly cloudy. Slight chance of showers and
thunderstorms in the evening, then slight chance of showers after
midnight. Lows in the upper 30s. Winds generally less than
10 mph.
.FRIDAY...Partly cloudy with showers likely and slight chance of
thunderstorms. Lows in the mid 30s. Highs in the upper 50s. Winds
generally less than 10 mph.
.SATURDAY...Partly cloudy with showers likely and chance of
thunderstorms. Lows in the mid 30s. Highs in the mid 50s. Winds
generally less than 10 mph.
.SUNDAY...Partly cloudy with slight chance of showers and
thunderstorms. Lows in the upper 30s. Highs in the mid 50s. Winds
generally less than 10 mph.
.MONDAY...Partly cloudy with slight chance of showers and
thunderstorms. Lows in the upper 30s. Highs around 60.
.TUESDAY...Partly cloudy. Chance of showers in the morning, then
chance of showers and slight chance of thunderstorms in the
afternoon. Highs in the upper 50s.
$$
WYZ288-111130-
East Wind River Mountains/South Shoshone NF-
Including the cities of Dubois and South Pass
330 AM MDT Wed Sep 10 2025
.TODAY...
Sky/weather.........Partly cloudy. Slight chance of showers and
thunderstorms late in the afternoon. Chance of
precipitation 20 percent.
Chance of thunder...10 percent.
Max temperature.....70-75.
24 hr trend......5 degrees warmer.
Min humidity........21-27 percent.
24 hr trend......8 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph until 0900. Winds
south around 20 mph with gusts to around 30 mph
after 1200.
Ridge top winds.....South around 10 mph until 1200, then around 25
mph.
Chc of wetting rain.Zero percent.
Transport winds.....South around 10 mph until 1200, then southwest
around 25 mph.
Mixing Height.......1600-3600 ft agl until 1200, then 7600-9600 ft
agl.
Smoke dispersal.....Poor to fair until 1200, then excellent.
.TONIGHT...
Sky/weather.........Partly cloudy. Chance of showers in the
evening. Slight chance of thunderstorms through
the night. Slight chance of showers after
midnight. Chance of precipitation 50 percent.
Chance of thunder...20 percent.
Min temperature.....45-50.
24 hr trend......1 degree warmer.
Max humidity........70-76 percent.
24 hr trend......1 percent drier.
Humidity recovery...Excellent.
20-foot winds.......Southwest winds around 15 mph with gusts to
around 35 mph.
Ridge top winds.....Southwest around 20 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest around 20 mph.
Mixing Height.......3600-5600 ft agl until 2400, then 400-800 ft
agl.
Smoke dispersal.....Good to very good until 2400, then poor.
.THURSDAY...
Sky/weather.........Partly cloudy. Chance of showers through the
day. Slight chance of thunderstorms late in the
morning, then chance of thunderstorms in the
afternoon. Chance of precipitation 50 percent.
Chance of thunder...30 percent.
Max temperature.....62-67.
24 hr trend......7 degrees cooler.
Min humidity........39-45 percent.
24 hr trend......12 percent wetter.
20-foot winds.......Southwest winds 10 to 15 mph until 1200, then
15 to 20 mph. Gusts up to 35 mph.
Ridge top winds.....Southwest around 20 mph.
Chc of wetting rain.5 percent until 1200, then 25 percent.
Transport winds.....Southwest around 20 mph until 1200, then around
30 mph.
Mixing Height.......2000-4000 ft agl until 1200, then 4600-6600 ft
agl.
Smoke dispersal.....Fair to good until 1200, then very good.
.Forecast days 3 through 7......
.THURSDAY NIGHT...Partly cloudy. Slight chance of showers and
thunderstorms in the evening, then slight chance of showers after
midnight. Lows in the lower 40s. West winds around 10 mph.
.FRIDAY...Partly cloudy with showers likely and slight chance of
thunderstorms. Lows in the lower 40s. Highs in the lower 60s.
Southwest winds around 10 mph.
.SATURDAY...Partly cloudy with chance of showers and slight
chance of thunderstorms. Lows around 40. Highs in the upper 50s.
West winds around 10 mph.
.SUNDAY...Mostly clear with slight chance of showers and
thunderstorms. Lows in the lower 40s. Highs around 60. West winds
around 10 mph.
.MONDAY...Partly cloudy. Slight chance of showers and
thunderstorms. Lows in the lower 40s. Highs in the lower 60s.
.TUESDAY...Partly cloudy. Chance of showers in the morning, then
chance of showers and slight chance of thunderstorms in the
afternoon. Highs around 60.
$$
WYZ414-111130-
Salt and Wyoming Ranges/West Zone Bridger Teton NF-
Including the city of Afton
330 AM MDT Wed Sep 10 2025
.TODAY...
Sky/weather.........Partly cloudy. Slight chance of showers and
thunderstorms early in the afternoon. Chance of
precipitation 20 percent.
Chance of thunder...10 percent.
Max temperature.....68-73.
24 hr trend......3 degrees warmer.
Min humidity........24-30 percent.
24 hr trend......9 percent drier.
20-foot winds.......South winds 10 to 15 mph with gusts to around
30 mph.
Ridge top winds.....South 15 to 20 mph.
Chc of wetting rain.Zero percent.
Transport winds.....South around 15 mph until 1200, then around 25
mph.
Mixing Height.......2400-4400 ft agl until 1200, then 8200-10200 ft
agl.
Smoke dispersal.....Fair to good until 1200, then excellent.
.TONIGHT...
Sky/weather.........Mostly cloudy then becoming partly cloudy.
Slight chance of showers until early morning.
Slight chance of thunderstorms through the
night. Chance of showers early in the morning.
Chance of precipitation 40 percent.
Chance of thunder...20 percent.
Min temperature.....40-45.
24 hr trend......1 degree cooler.
Max humidity........79-85 percent.
24 hr trend......4 percent wetter.
Humidity recovery...Excellent.
20-foot winds.......South winds around 10 mph with gusts to around
25 mph until 2100, then downslope/downvalley
4-7 mph.
Ridge top winds.....South 10 to 15 mph.
Chc of wetting rain.Less than 5 percent.
Transport winds.....South 10 to 15 mph.
Mixing Height.......3400-5400 ft agl until 2400, then 400-1000 ft
agl.
Smoke dispersal.....Fair to good until 2400, then poor.
.THURSDAY...
Sky/weather.........Partly cloudy. Chance of showers and slight
chance of thunderstorms in the morning, then
showers likely and chance of thunderstorms in
the afternoon. Chance of precipitation 70
percent.
Chance of thunder...40 percent.
Max temperature.....61-66.
24 hr trend......7 degrees cooler.
Min humidity........40-46 percent.
24 hr trend......13 percent wetter.
20-foot winds.......Southeast winds around 10 mph until 1200, then
southwest. Gusts up to 30 mph.
Ridge top winds.....Southeast around 15 mph until 1200, then
southwest.
Chc of wetting rain.10 percent until 1200, then 25 percent.
Transport winds.....South 15 to 20 mph.
Mixing Height.......2000-4000 ft agl until 1200, then 5800-7800 ft
agl.
Smoke dispersal.....Poor to fair until 1200, then good to very
good.
.Forecast days 3 through 7......
.THURSDAY NIGHT...Partly cloudy. Slight chance of showers and
thunderstorms in the evening, then slight chance of showers after
midnight. Lows around 40. Winds generally less than 10 mph.
.FRIDAY...Partly cloudy with showers likely and slight chance of
thunderstorms. Lows in the upper 30s. Highs in the lower 60s.
Winds generally less than 10 mph.
.SATURDAY...Partly cloudy with showers likely and chance of
thunderstorms. Lows in the upper 30s. Highs in the upper 50s.
Winds generally less than 10 mph.
.SUNDAY...Partly cloudy with slight chance of showers and
thunderstorms. Lows around 40. Highs in the lower 60s. Winds
generally less than 10 mph.
.MONDAY...Partly cloudy with chance of showers and slight chance
of thunderstorms. Lows around 40. Highs in the mid 60s.
.TUESDAY...Partly cloudy. Chance of showers in the morning, then
chance of showers and slight chance of thunderstorms in the
afternoon. Highs in the lower 60s.
$$
WYZ278-111130-
Upper Green River Basin/Rock Springs BLM-
Including the cities of Big Piney, Farson, and Pinedale
330 AM MDT Wed Sep 10 2025
.TODAY...
Sky/weather.........Partly cloudy. Slight chance of showers and
thunderstorms late in the afternoon. Chance of
precipitation 20 percent.
Chance of thunder...10 percent.
Max temperature.....69-74.
24 hr trend......4 degrees warmer.
Min humidity........21-27 percent.
24 hr trend......4 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph until 0900, then
southeast 10 to 15 mph with gusts to around 30
mph until 1500, then south around 20 mph with
gusts to around 30 mph.
Ridge top winds.....East around 10 mph until 1200, then south
around 20 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Southeast around 10 mph until 1200, then south
around 25 mph.
Mixing Height.......1400-3400 ft agl until 1200, then 8200-10200 ft
agl.
Smoke dispersal.....Poor to fair until 1200, then excellent.
.TONIGHT...
Sky/weather.........Partly cloudy. Slight chance of showers and
thunderstorms. Chance of precipitation 20
percent.
Chance of thunder...10 percent.
Min temperature.....42-47.
24 hr trend......Unchanged.
Max humidity........80-86 percent.
24 hr trend......8 percent wetter.
Humidity recovery...Excellent.
20-foot winds.......South winds around 15 mph until 2100, then
downslope/downvalley 4-7 mph until 2400, then
southeast around 10 mph. Gusts up to 30 mph.
Ridge top winds.....Southeast around 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....South around 15 mph.
Mixing Height.......3800-5800 ft agl until 2400, then 600-800 ft
agl.
Smoke dispersal.....Good to very good until 2400, then poor.
.THURSDAY...
Sky/weather.........Partly cloudy. Chance of showers through the
day. Slight chance of thunderstorms late in the
morning, then chance of thunderstorms in the
afternoon. Chance of precipitation 50 percent.
Chance of thunder...40 percent.
Max temperature.....63-68.
24 hr trend......6 degrees cooler.
Min humidity........38-44 percent.
24 hr trend......12 percent wetter.
20-foot winds.......Upslope/upvalley 5-9 mph until 0900, then south
around 10 mph until 1500, then southwest. Gusts
up to 25 mph.
Ridge top winds.....Southeast around 10 mph until 1200, then
southwest.
Chc of wetting rain.7 percent.
Transport winds.....South 15 to 20 mph.
Mixing Height.......2000-4000 ft agl until 1200, then 5600-7600 ft
agl.
Smoke dispersal.....Poor to fair until 1200, then very good.
.Forecast days 3 through 7......
.THURSDAY NIGHT...Partly cloudy. Slight chance of showers and
thunderstorms in the evening, then slight chance of showers after
midnight. Lows in the lower 40s. Winds generally less than
10 mph.
.FRIDAY...Partly cloudy with chance of showers and slight chance
of thunderstorms. Lows in the upper 30s. Highs in the upper 60s.
Winds generally less than 10 mph.
.SATURDAY...Partly cloudy with chance of showers and
thunderstorms. Lows in the upper 30s. Highs in the mid 60s. Winds
generally less than 10 mph.
.SUNDAY...Partly cloudy. Lows in the upper 30s. Highs in the mid
60s. Winds generally less than 10 mph.
.MONDAY...Partly cloudy. Slight chance of showers and
thunderstorms. Lows around 40. Highs around 70.
.TUESDAY...Partly cloudy. Slight chance of showers in the
morning, then chance of showers and slight chance of
thunderstorms in the afternoon. Highs in the upper 60s.
$$
WYZ277-111130-
Lincoln and Uinta Counties/Lower Elevations-
Including the cities of Evanston, Fort Bridger, and Kemmerer
330 AM MDT Wed Sep 10 2025
.TODAY...
Sky/weather.........Partly cloudy. Slight chance of showers and
thunderstorms late in the afternoon. Chance of
precipitation 20 percent.
Chance of thunder...10 percent.
Max temperature.....70-75.
24 hr trend......3 degrees warmer.
Min humidity........18-24 percent.
24 hr trend......6 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph until 0900, then south
10 to 15 mph until 1500, then around 20 mph.
Gusts up to 30 mph.
Ridge top winds.....Southeast around 10 mph until 1200, then south
around 20 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Southeast around 15 mph until 1200, then south
around 25 mph.
Mixing Height.......2000-4000 ft agl until 1200, then 9000-11000 ft
agl.
Smoke dispersal.....Poor to fair until 1200, then excellent.
.TONIGHT...
Sky/weather.........Partly cloudy. Slight chance of showers and
thunderstorms early in the evening. Slight
chance of showers and thunderstorms late in the
evening. Chance of precipitation 20 percent.
Chance of thunder...10 percent.
Min temperature.....44-49.
24 hr trend......1 degree cooler.
Max humidity........77-83 percent.
24 hr trend......8 percent wetter.
Humidity recovery...Excellent.
20-foot winds.......South winds around 15 mph with gusts to around
25 mph until 2100, then downslope/downvalley
4-7 mph.
Ridge top winds.....South 10 to 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....South 10 to 15 mph.
Mixing Height.......3600-5600 ft agl until 2400, then 400-800 ft
agl.
Smoke dispersal.....Good until 2400, then poor.
.THURSDAY...
Sky/weather.........Partly cloudy. Slight chance of thunderstorms
in the morning. Chance of showers through the
day. Chance of thunderstorms in the afternoon.
Chance of precipitation 50 percent.
Chance of thunder...30 percent.
Max temperature.....64-69.
24 hr trend......5 degrees cooler.
Min humidity........25-31 percent.
24 hr trend......7 percent wetter.
20-foot winds.......Upslope/upvalley 5-9 mph until 1200, then
southwest around 10 mph. Gusts up to 25 mph.
Ridge top winds.....Southeast around 10 mph until 1200, then
southwest.
Chc of wetting rain.Zero percent.
Transport winds.....South around 15 mph until 1200, then southwest
around 25 mph.
Mixing Height.......2000-4000 ft agl until 1200, then 7600-9600 ft
agl.
Smoke dispersal.....Poor to fair until 1200, then excellent.
.Forecast days 3 through 7......
.THURSDAY NIGHT...Partly cloudy. Slight chance of showers and
thunderstorms in the evening, then slight chance of showers after
midnight. Lows in the lower 40s. Winds generally less than
10 mph.
.FRIDAY...Partly cloudy with chance of showers and slight chance
of thunderstorms. Lows in the upper 30s. Highs in the upper 60s.
Winds generally less than 10 mph.
.SATURDAY...Partly cloudy with chance of showers and
thunderstorms. Lows in the upper 30s. Highs in the mid 60s. Winds
generally less than 10 mph.
.SUNDAY...Partly cloudy. Lows in the lower 40s. Highs in the
upper 60s. Winds generally less than 10 mph.
.MONDAY...Partly cloudy. Slight chance of showers and
thunderstorms. Lows in the lower 40s. Highs in the lower 70s.
.TUESDAY...Partly cloudy. Chance of showers in the morning, then
slight chance of showers and thunderstorms in the afternoon.
Highs in the upper 60s.
$$
WYZ279-111130-
Sweetwater County/Rock Springs BLM/Flaming Gorge NRA-
Including the cities of Green River, Rock Springs, and Wamsutter
330 AM MDT Wed Sep 10 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......3 percent drier.
20-foot winds.......Breezy. South winds 10 to 15 mph with gusts to
around 25 mph until 1200, then around 25 mph
with gusts to around 35 mph.
Ridge top winds.....South around 15 mph until 1200, then around 30
mph.
Chc of wetting rain.Zero percent.
Transport winds.....South around 15 mph until 1200, then southwest
around 30 mph.
Mixing Height.......2000-4000 ft agl until 1200, then 8600-10600 ft
agl.
Smoke dispersal.....Fair to good until 1200, then excellent.
.TONIGHT...
Sky/weather.........Partly cloudy. Chance of showers in the
evening. Slight chance of thunderstorms through
the night. Slight chance of showers after
midnight. Chance of precipitation 50 percent.
Chance of thunder...20 percent.
Min temperature.....49-54.
24 hr trend......Unchanged.
Max humidity........77-83 percent.
24 hr trend......7 percent wetter.
Humidity recovery...Excellent.
20-foot winds.......Southwest winds around 20 mph until 2100, then
south 10 to 15 mph. Gusts up to 30 mph.
Ridge top winds.....South 15 to 20 mph.
Chc of wetting rain.Zero percent.
Transport winds.....South 15 to 20 mph.
Mixing Height.......4000-6000 ft agl until 2400, then 400-800 ft
agl.
Smoke dispersal.....Very good until 2400, then poor.
.THURSDAY...
Sky/weather.........Mostly sunny then becoming partly cloudy.
Chance of showers in the morning, then slight
chance of showers and thunderstorms in the
afternoon. Chance of precipitation 50 percent.
Chance of thunder...20 percent.
Max temperature.....67-72.
24 hr trend......5 degrees cooler.
Min humidity........36-42 percent.
24 hr trend......11 percent wetter.
20-foot winds.......South winds 10 to 15 mph until 1200, then
southwest around 20 mph. Gusts up to 35 mph.
Ridge top winds.....South 20 to 25 mph.
Chc of wetting rain.Zero percent.
Transport winds.....South around 20 mph until 1200, then southwest
around 35 mph.
Mixing Height.......2200-4200 ft agl until 1200, then 7000-9000 ft
agl.
Smoke dispersal.....Good until 1200, then excellent.
.Forecast days 3 through 7......
.THURSDAY NIGHT...Partly cloudy. Slight chance of showers and
thunderstorms in the evening, then slight chance of showers after
midnight. Lows in the mid 40s. South winds around 10 mph.
.FRIDAY THROUGH SATURDAY...Partly cloudy with chance of showers
and slight chance of thunderstorms. Lows 40 to 45. Highs 67 to
72. Southwest winds around 10 mph.
.SUNDAY...Mostly clear. Lows in the lower 40s. Highs around 70.
Winds generally less than 10 mph.
.MONDAY...Mostly clear. Lows in the mid 40s. Highs in the mid
70s.
.TUESDAY...Mostly sunny. Slight chance of showers in the morning,
then slight chance of showers and thunderstorms in the afternoon.
Highs in the lower 70s.
$$
WYZ289-111130-
Granite/Green/Ferris/Rattlesnake Mountains-
Including the city of Jeffrey City
330 AM MDT Wed Sep 10 2025
.TODAY...
Sky/weather.........Partly cloudy then becoming mostly sunny.
Chance of thunder...0 percent.
Max temperature.....76-81.
24 hr trend......5 degrees warmer.
Min humidity........15-21 percent.
24 hr trend......5 percent drier.
20-foot winds.......Breezy. Upslope/upvalley 5-9 mph until 0900.
Winds southwest 20 to 25 mph with gusts to
around 30 mph after 1200.
Ridge top winds.....South around 15 mph until 1200, then southwest
around 25 mph.
Chc of wetting rain.Zero percent.
Transport winds.....South around 15 mph until 1200, then southwest
around 25 mph.
Mixing Height.......1400-3400 ft agl until 1200, then 8400-10400 ft
agl.
Smoke dispersal.....Poor to fair until 1200, then excellent.
.TONIGHT...
Sky/weather.........Partly cloudy. Slight chance of showers and
thunderstorms late in the evening. Chance of
precipitation 20 percent.
Chance of thunder...10 percent.
Min temperature.....52-57.
24 hr trend......2 degrees warmer.
Max humidity........62-68 percent.
24 hr trend......3 percent drier.
Humidity recovery...Good.
20-foot winds.......Southwest winds around 20 mph with gusts to
around 30 mph until 2100, then 10 to 15 mph
with gusts to around 40 mph.
Ridge top winds.....Southwest around 20 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest around 20 mph.
Mixing Height.......4400-6400 ft agl until 2400, then 400-800 ft
agl.
Smoke dispersal.....Very good until 2400, then poor.
.THURSDAY...
Sky/weather.........Partly cloudy. Slight chance of showers in the
morning. Chance of showers and slight chance of
thunderstorms in the afternoon. Chance of
precipitation 40 percent.
Chance of thunder...20 percent.
Max temperature.....73-78.
24 hr trend......4 degrees cooler.
Min humidity........23-29 percent.
24 hr trend......8 percent wetter.
20-foot winds.......Southwest winds 15 to 20 mph with gusts to
around 40 mph.
Ridge top winds.....Southwest 20 to 25 mph.
Chc of wetting rain.Zero percent.
Transport winds.....South around 25 mph until 1200, then southwest
around 35 mph.
Mixing Height.......2000-4000 ft agl until 1200, then 7000-9000 ft
agl.
Smoke dispersal.....Good until 1200, then excellent.
.Forecast days 3 through 7......
.THURSDAY NIGHT...Partly cloudy. Slight chance of showers and
thunderstorms in the evening, then slight chance of showers after
midnight. Lows in the upper 40s. Southwest winds around 10 mph.
.FRIDAY THROUGH SATURDAY...Partly cloudy with chance of showers
and slight chance of thunderstorms. Lows in the mid 40s. Highs
68 to 73. West winds around 10 mph.
.SUNDAY...Mostly clear. Lows in the mid 40s. Highs in the upper
60s. Southwest winds around 10 mph.
.MONDAY...Mostly clear. Lows in the mid 40s. Highs in the mid
70s.
.TUESDAY...Partly cloudy. Slight chance of showers in the
morning, then chance of showers and slight chance of
thunderstorms in the afternoon. Highs in the lower 70s.
$$
WYZ300-111130-
Casper Mountain-
330 AM MDT Wed Sep 10 2025
.TODAY...
Sky/weather.........Partly cloudy. Chance of showers and slight
chance of thunderstorms in the afternoon.
Chance of precipitation 40 percent.
Chance of thunder...20 percent.
Max temperature.....75-80.
24 hr trend......5 degrees warmer.
Min humidity........20-26 percent.
24 hr trend......2 percent drier.
20-foot winds.......South winds 10 to 15 mph with higher gusts
until 1200, then southwest 15 to 20 mph with
gusts to around 30 mph.
Ridge top winds.....South around 15 mph until 1200, then southwest.
Chc of wetting rain.Zero percent.
Transport winds.....South 15 to 20 mph.
Mixing Height.......2600-4600 ft agl until 1200, then 9800-11800 ft
agl.
Smoke dispersal.....Fair to good until 1200, then excellent.
.TONIGHT...
Sky/weather.........Partly cloudy.
Chance of thunder...0 percent.
Min temperature.....54-59.
24 hr trend......3 degrees warmer.
Max humidity........58-64 percent.
24 hr trend......4 percent drier.
Humidity recovery...Good.
20-foot winds.......South winds around 10 mph until 2400, then
around 15 mph. Gusts up to 25 mph.
Ridge top winds.....South 15 to 20 mph.
Chc of wetting rain.Zero percent.
Transport winds.....South 15 to 20 mph.
Mixing Height.......4200-6200 ft agl until 2400, then 200-600 ft
agl.
Smoke dispersal.....Good to very good until 2400, then poor.
.THURSDAY...
Sky/weather.........Mostly sunny then becoming partly cloudy.
Slight chance of showers and thunderstorms late
in the afternoon. Chance of precipitation 20
percent.
Chance of thunder...10 percent.
Max temperature.....74-79.
24 hr trend......1 degree cooler.
Min humidity........23-29 percent.
24 hr trend......1 percent wetter.
20-foot winds.......Southwest winds around 15 mph with gusts to
around 30 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.......2000-4000 ft agl until 1200, then 6800-8800 ft
agl.
Smoke dispersal.....Good until 1200, then excellent.
.Forecast days 3 through 7......
.THURSDAY NIGHT...Partly cloudy. Lows in the lower 50s. South
winds around 10 mph.
.FRIDAY...Partly cloudy. Chance of showers and slight chance of
thunderstorms. Lows in the upper 40s. Highs in the lower 70s.
South winds around 10 mph.
.SATURDAY...Partly cloudy with chance of showers and slight
chance of thunderstorms. Lows in the mid 40s. Highs in the mid
60s. Southwest winds around 10 mph.
.SUNDAY...Mostly clear. Lows in the upper 40s. Highs in the upper
60s. Southwest winds around 10 mph.
.MONDAY...Mostly clear. Lows in the upper 40s. Highs in the lower
70s.
.TUESDAY...Partly cloudy. Chance of showers and slight chance of
thunderstorms in the afternoon. Highs in the upper 60s.
$$