Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS Riverton, WY
Issued by NWS Riverton, WY
239
FNUS55 KRIW 221018
FWFRIW
Fire Weather Planning Forecast for Western and Central Wyoming
National Weather Service Riverton WY
418 AM MDT Sun Jun 22 2025
.DISCUSSION...
...Yellowstone NP and Teton dispatch areas (includes fire weather
zones 140...414...415...and 416)...
Showers will continue today across the area, with some higher
elevations noting snowfall. Colder temperatures today, with
higher elevations in the 30s and 40s, and lower valley in the 50s.
Clear skies overnight will allow temperatures to fall below
freezing for all areas.
...Cody dispatch area (includes fire weather zones 275...276...
282...283...285...286...287...288...and 289)...
Showers continue during the day today, with much colder
temperatures. Some shower activity will be light snow above 8000
feet this afternoon. Gusty winds will be limited to zones 286 and
288. Temperatures will be much colder today, with highs
elevations in the 30s and 40s, and lower elevations in the 50s.
Clear skies tonight will bring temperatures down to the upper 20s
to mid 30s.
...Casper dispatch area (includes fire weather zones 277...278...
279...280...281...285...289...and 300)...
Gusty southwest winds return for southern WY today, while central
and northern WY have lighter north winds. Rain will be limited to
zone 281 this afternoon. Clearing skies overnight will allow
temperatures to fall to around 40 east of the divide, and
the upper 20s to lower 30s west of the divide.
...Thunderstorms imply strong gusty and erratic winds...
WYZ280-231230-
Natrona County/Casper BLM-
Including the cities of Casper and Midwest
418 AM MDT Sun Jun 22 2025
.TODAY...
Sky/weather.........Partly cloudy. Isolated showers. Isolated
thunderstorms in the afternoon. Chance of
precipitation 20 percent.
Chance of thunder...10 percent.
Max temperature.....66-71.
24 hr trend......20 degrees cooler.
Min humidity........23-29 percent.
24 hr trend......11 percent wetter.
20-foot winds.......Windy. Northeast winds 15 to 20 mph with gusts
to around 35 mph until 1200, then southwest 25
to 30 mph with gusts to around 45 mph.
Ridge top winds.....Northeast around 20 mph until 1200, then
southwest around 30 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Northeast around 20 mph until 1200, then
southwest around 35 mph.
Mixing Height.......2000-4000 ft agl until 1200, then 6400-8400 ft
agl.
Smoke dispersal.....Fair to good until 1200, then excellent.
.TONIGHT...
Sky/weather.........Mostly clear.
Chance of thunder...0 percent.
Min temperature.....38-43.
24 hr trend......7 degrees cooler.
Max humidity........69-75 percent.
24 hr trend......16 percent drier.
Humidity recovery...Good.
20-foot winds.......Breezy. West winds 20 to 25 mph with gusts to
around 45 mph until 2400, then around 10 mph
with gusts to around 25 mph.
Ridge top winds.....West around 25 mph until 2400, then around 15
mph.
Chc of wetting rain.Zero percent.
Transport winds.....West around 25 mph until 2400, then around 15
mph.
Mixing Height.......4200-6200 ft agl until 2400, then 400-1000 ft
agl.
Smoke dispersal.....Very good to excellent until 2400, then poor.
.MONDAY...
Sky/weather.........Mostly sunny.
Chance of thunder...0 percent.
Max temperature.....70-75.
24 hr trend......4 degrees warmer.
Min humidity........19-25 percent.
24 hr trend......3 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph until 1200, then
southeast around 10 mph with gusts to around 25
mph.
Ridge top winds.....Southeast 10 to 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest 10 to 15 mph.
Mixing Height.......1600-3600 ft agl until 1200, then 6200-8200 ft
agl.
Smoke dispersal.....Poor until 1200, then good to very good.
.Forecast days 3 through 7......
.MONDAY NIGHT...Mostly clear. Isolated showers in the evening.
Lows in the upper 40s. East winds around 15 mph.
.TUESDAY...Partly cloudy. Scattered showers and thunderstorms.
Lows around 50. Highs in the upper 70s. Northeast winds around
10 mph.
.WEDNESDAY...Partly cloudy with scattered showers and
thunderstorms. Lows in the lower 50s. Highs in the upper 70s.
South winds around 10 mph.
.THURSDAY...Mostly clear. Lows in the mid 50s. Highs in the mid
80s. Southwest winds around 10 mph.
.FRIDAY THROUGH SATURDAY...Mostly clear. Lows in the lower 50s.
Highs in the upper 80s.
$$
WYZ283-231230-
Upper Wind River Basin/Wind River Basin-
Including the cities of Crowheart, Lander, Riverton, and Shoshoni
418 AM MDT Sun Jun 22 2025
.TODAY...
Sky/weather.........Partly cloudy. Isolated thunderstorms in the
morning. Scattered showers through the day.
Scattered thunderstorms in the afternoon.
Chance of precipitation 50 percent.
Chance of thunder...20 percent.
Max temperature.....61-66.
24 hr trend......18 degrees cooler.
Min humidity........22-28 percent.
24 hr trend......9 percent wetter.
20-foot winds.......Breezy. East winds around 15 mph with gusts to
around 30 mph until 0900, then south with gusts
to around 30 mph until 1200, then west around
25 mph with gusts to around 40 mph.
Ridge top winds.....Southeast around 20 mph until 1200, then west
around 30 mph.
Chc of wetting rain.Less than 5 percent.
Transport winds.....Southeast around 20 mph until 1200, then
southwest around 30 mph.
Mixing Height.......2800-4800 ft agl until 1200, then 7800-9800 ft
agl.
Smoke dispersal.....Good until 1200, then excellent.
.TONIGHT...
Sky/weather.........Mostly clear.
Chance of thunder...0 percent.
Min temperature.....35-40.
24 hr trend......10 degrees cooler.
Max humidity........64-70 percent.
24 hr trend......11 percent drier.
Humidity recovery...Good.
20-foot winds.......Breezy. West winds 20 to 25 mph with gusts to
around 40 mph until 2400, then around 10 mph
and gusty.
Ridge top winds.....West around 25 mph until 2400, then around 15
mph.
Chc of wetting rain.Zero percent.
Transport winds.....West around 25 mph until 2400, then northwest
around 15 mph.
Mixing Height.......4200-6200 ft agl until 2400, then 400-1000 ft
agl.
Smoke dispersal.....Very good until 2400, then poor.
.MONDAY...
Sky/weather.........Mostly sunny then becoming partly cloudy.
Chance of thunder...0 percent.
Max temperature.....68-73.
24 hr trend......7 degrees warmer.
Min humidity........16-22 percent.
24 hr trend......5 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph until 1200, then
southeast around 10 mph. Gusts up to 20 mph.
Ridge top winds.....Southeast 10 to 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest 10 to 15 mph.
Mixing Height.......1400-3400 ft agl until 1200, then 5600-7600 ft
agl.
Smoke dispersal.....Poor until 1200, then good.
.Forecast days 3 through 7......
.MONDAY NIGHT...Partly cloudy. Lows in the upper 40s. North winds
around 10 mph.
.TUESDAY...Partly cloudy with isolated showers and thunderstorms.
Lows in the upper 40s. Highs in the upper 70s. Winds generally
less than 10 mph.
.WEDNESDAY...Mostly clear. Isolated showers and thunderstorms.
Lows in the lower 50s. Highs around 80. Winds generally less than
10 mph.
.THURSDAY...Mostly clear. Lows in the mid 50s. Highs in the mid
80s. Southwest winds around 10 mph.
.FRIDAY...Partly cloudy. Lows in the mid 50s. Highs in the upper
80s.
.SATURDAY...Mostly sunny. Highs in the mid 80s.
$$
WYZ285-231230-
South Bighorn Mountains-
418 AM MDT Sun Jun 22 2025
.TODAY...
Sky/weather.........Partly cloudy. Scattered showers through the
day. Isolated thunderstorms late in the
morning, then scattered thunderstorms in the
afternoon. Chance of precipitation 50 percent.
Chance of thunder...30 percent.
Max temperature.....55-60.
24 hr trend......20 degrees cooler.
Min humidity........37-43 percent.
24 hr trend......25 percent wetter.
20-foot winds.......Breezy. Northeast winds around 15 mph with
gusts to around 30 mph until 0900, then
southeast with gusts to around 30 mph until
1200, then west 20 to 25 mph with gusts to
around 40 mph.
Ridge top winds.....East around 20 mph until 1200, then west.
Chc of wetting rain.5 percent.
Transport winds.....East around 20 mph until 1200, then southwest
around 30 mph.
Mixing Height.......1000-3000 ft agl until 1200, then 4000-6000 ft
agl.
Smoke dispersal.....Poor to fair until 1200, then very good.
.TONIGHT...
Sky/weather.........Mostly clear. Isolated showers and
thunderstorms early in the evening. Chance of
precipitation 20 percent.
Chance of thunder...20 percent.
Min temperature.....35-40.
24 hr trend......7 degrees cooler.
Max humidity........74-80 percent.
24 hr trend......8 percent drier.
Humidity recovery...Excellent.
20-foot winds.......West winds 15 to 20 mph with gusts to around 40
mph until 0300, then around 10 mph with gusts
to around 25 mph.
Ridge top winds.....West around 25 mph until 2400, then northwest
around 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West around 25 mph until 2400, then northwest
around 15 mph.
Mixing Height.......2600-4600 ft agl until 2400, then 200-600 ft
agl.
Smoke dispersal.....Good until 2400, then poor.
.MONDAY...
Sky/weather.........Mostly sunny then becoming partly cloudy.
Chance of thunder...0 percent.
Max temperature.....62-67.
24 hr trend......8 degrees warmer.
Min humidity........20-26 percent.
24 hr trend......20 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 around 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest around 15 mph.
Mixing Height.......1200-3200 ft agl until 1200, then 4800-6800 ft
agl.
Smoke dispersal.....Poor until 1200, then good.
.Forecast days 3 through 7......
.MONDAY NIGHT...Partly cloudy with isolated showers. Lows in the
upper 40s. Northeast winds around 10 mph.
.TUESDAY...Partly cloudy with scattered showers and
thunderstorms. Lows in the upper 40s. Highs around 70. Northeast
winds around 10 mph.
.WEDNESDAY...Mostly clear. Scattered showers and thunderstorms.
Lows in the lower 50s. Highs in the lower 70s. Southwest winds
around 10 mph.
.THURSDAY...Mostly clear. Lows in the mid 50s. Highs in the upper
70s. Southwest winds around 10 mph.
.FRIDAY...Mostly clear. Lows in the lower 50s. Highs around 80.
.SATURDAY...Mostly sunny. Isolated showers and thunderstorms in
the afternoon. Highs in the upper 70s.
$$
WYZ281-231230-
Johnson County/Casper BLM-
Including the cities of Buffalo and Kaycee
418 AM MDT Sun Jun 22 2025
.TODAY...
Sky/weather.........Mostly cloudy then becoming partly cloudy.
Isolated showers in the morning. Scattered
showers and thunderstorms in the afternoon.
Chance of precipitation 50 percent.
Chance of thunder...30 percent.
Max temperature.....58-63.
24 hr trend......20 degrees cooler.
Min humidity........49-55 percent.
24 hr trend......24 percent wetter.
20-foot winds.......North winds 15 to 20 mph with gusts to around
35 mph.
Ridge top winds.....North around 20 mph.
Chc of wetting rain.Zero percent.
Transport winds.....North around 20 mph until 1200, then southwest.
Mixing Height.......2200-3400 ft agl until 1200, then 4400-6400 ft
agl.
Smoke dispersal.....Fair until 1200, then good to very good.
.TONIGHT...
Sky/weather.........Mostly clear. Isolated showers and
thunderstorms early in the evening. Chance of
precipitation 20 percent.
Chance of thunder...10 percent.
Min temperature.....37-42.
24 hr trend......7 degrees cooler.
Max humidity........82-88 percent.
24 hr trend......6 percent wetter.
Humidity recovery...Excellent.
20-foot winds.......Northwest winds 15 to 20 mph with gusts to
around 30 mph until 2400. Downslope/downvalley
4-7 mph after 0300.
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 around
10 mph.
Mixing Height.......1600-3600 ft agl until 2400, then 600-1000 ft
agl.
Smoke dispersal.....Fair to good until 2400, then poor.
.MONDAY...
Sky/weather.........Mostly sunny then becoming partly cloudy.
Chance of thunder...0 percent.
Max temperature.....65-70.
24 hr trend......8 degrees warmer.
Min humidity........28-34 percent.
24 hr trend......22 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph until 0900, then
southeast around 10 mph. Gusts up to 20 mph.
Ridge top winds.....Southeast 10 to 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....South 10 to 15 mph.
Mixing Height.......1400-3400 ft agl until 1200, then 5600-7600 ft
agl.
Smoke dispersal.....Poor until 1200, then good.
.Forecast days 3 through 7......
.MONDAY NIGHT...Warmer. Partly cloudy. Isolated showers and
thunderstorms in the evening, then isolated showers after
midnight. Lows in the lower 50s. East winds around 10 mph.
.TUESDAY...Partly cloudy with scattered showers and
thunderstorms. Lows in the lower 50s. Highs in the mid 70s.
Northeast winds around 10 mph.
.WEDNESDAY...Mostly clear with scattered showers and
thunderstorms. Lows in the mid 50s. Highs in the upper 70s. Winds
generally less than 10 mph.
.THURSDAY...Mostly clear. Lows in the mid 50s. Highs in the mid
80s. South winds around 10 mph.
.FRIDAY...Mostly clear. Lows in the mid 50s. Highs in the mid
80s.
.SATURDAY...Mostly sunny. Isolated showers and thunderstorms in
the afternoon. Highs in the lower 80s.
$$
WYZ282-231230-
South Bighorn Basin/Worland BLM-
Including the cities of Ten Sleep, Thermopolis, and Worland
418 AM MDT Sun Jun 22 2025
.TODAY...
Sky/weather.........Mostly cloudy then becoming partly cloudy.
Scattered showers and isolated thunderstorms in
the morning, then numerous showers and
scattered thunderstorms in the afternoon.
Chance of precipitation 70 percent.
Chance of thunder...40 percent.
Max temperature.....55-60.
24 hr trend......22 degrees cooler.
Min humidity........41-47 percent.
24 hr trend......26 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.........Mostly clear. Scattered showers early in the
evening. Isolated thunderstorms early in the
evening. Isolated showers early in the evening.
Chance of precipitation 40 percent.
Chance of thunder...20 percent.
Min temperature.....35-40.
24 hr trend......7 degrees cooler.
Max humidity........79-85 percent.
24 hr trend......Unchanged.
Humidity recovery...Excellent.
20-foot winds.......Northwest winds around 15 mph with gusts to
around 30 mph until 2400, then
downslope/downvalley 4-7 mph.
Ridge top winds.....Northwest around 20 mph until 2400, then west
around 10 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West around 20 mph until 2400, then northwest
around 10 mph.
Mixing Height.......2000-4000 ft agl until 2400, then 400-800 ft
agl.
Smoke dispersal.....Fair to good until 2400, then poor.
.MONDAY...
Sky/weather.........Mostly sunny then becoming partly cloudy.
Chance of thunder...0 percent.
Max temperature.....64-69.
24 hr trend......11 degrees warmer.
Min humidity........18-24 percent.
24 hr trend......24 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph until 1200, then
southeast around 10 mph. Gusts up to 15 mph.
Ridge top winds.....Southeast 10 to 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....South 10 to 15 mph.
Mixing Height.......1400-3400 ft agl until 1200, then 5200-7200 ft
agl.
Smoke dispersal.....Poor to fair.
.Forecast days 3 through 7......
.MONDAY NIGHT...Not as cool. Partly cloudy. Lows in the upper
40s. North winds around 10 mph.
.TUESDAY...Partly cloudy with isolated showers and thunderstorms.
Lows around 50. Highs in the upper 70s. Winds generally less than
10 mph.
.WEDNESDAY...Mostly clear. Isolated showers and thunderstorms.
Lows in the lower 50s. Highs in the lower 80s. Winds generally
less than 10 mph.
.THURSDAY...Mostly clear. Lows in the mid 50s. Highs in the upper
80s. Winds generally less than 10 mph.
.FRIDAY...Partly cloudy. Lows in the mid 50s. Highs in the upper
80s.
.SATURDAY...Mostly sunny. Isolated showers and thunderstorms in
the afternoon. Highs in the mid 80s.
$$
WYZ275-231230-
North Bighorn Basin/Worland BLM-
Including the cities of Greybull, Lovell, and Powell
418 AM MDT Sun Jun 22 2025
.TODAY...
Sky/weather.........Mostly cloudy then becoming partly cloudy.
Isolated thunderstorms in the morning. Numerous
showers through the day. Scattered
thunderstorms in the afternoon. Chance of
precipitation 70 percent.
Chance of thunder...40 percent.
Max temperature.....51-56.
24 hr trend......20 degrees cooler.
Min humidity........52-58 percent.
24 hr trend......29 percent wetter.
20-foot winds.......Northwest winds 15 to 20 mph. Gusts up to 35
mph until 1200, then 25 mph.
Ridge top winds.....Northwest 20 to 25 mph.
Chc of wetting rain.60 percent until 1200, then 40 percent.
Transport winds.....Northwest 20 to 25 mph.
Mixing Height.......1600-3600 ft agl.
Smoke dispersal.....Poor to fair.
.TONIGHT...
Sky/weather.........Partly cloudy. Scattered showers early in the
evening. Isolated thunderstorms early in the
evening. Isolated showers in the evening.
Chance of precipitation 50 percent.
Chance of thunder...20 percent.
Min temperature.....34-39.
24 hr trend......5 degrees cooler.
Max humidity........80-86 percent.
24 hr trend......7 percent drier.
Humidity recovery...Excellent.
20-foot winds.......Northwest winds 10 to 15 mph with gusts to
around 25 mph until 0300, then
downslope/downvalley 4-7 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.......1200-3200 ft agl until 2400, then 400-800 ft
agl.
Smoke dispersal.....Poor.
.MONDAY...
Sky/weather.........Mostly sunny.
Chance of thunder...0 percent.
Max temperature.....62-67.
24 hr trend......12 degrees warmer.
Min humidity........20-26 percent.
24 hr trend......28 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph until 0900, then
southeast around 10 mph. Gusts up to 20 mph.
Ridge top winds.....Southeast 10 to 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....South 10 to 15 mph.
Mixing Height.......1600-3600 ft agl until 1200, then 5000-7000 ft
agl.
Smoke dispersal.....Fair to good.
.Forecast days 3 through 7......
.MONDAY NIGHT...Not as cool. Partly cloudy. Lows in the upper
40s. Winds generally less than 10 mph.
.TUESDAY...Warmer. Partly cloudy with isolated showers and
thunderstorms. Lows around 50. Highs in the upper 70s. Winds
generally less than 10 mph.
.WEDNESDAY...Mostly clear. Isolated showers and thunderstorms.
Lows in the mid 50s. Highs in the lower 80s. Winds generally less
than 10 mph.
.THURSDAY...Mostly clear. Lows in the mid 50s. Highs in the upper
80s. South winds around 10 mph.
.FRIDAY...Partly cloudy with isolated showers and thunderstorms.
Lows in the mid 50s. Highs in the mid 80s.
.SATURDAY...Mostly sunny. Isolated showers and thunderstorms in
the afternoon. Highs in the lower 80s.
$$
WYZ276-231230-
Cody Foothills-
Including the cities of Clark, Cody, and Meeteetse
418 AM MDT Sun Jun 22 2025
.TODAY...
Sky/weather.........Cloudy then becoming partly cloudy. Showers and
isolated thunderstorms in the morning, then
numerous showers and scattered thunderstorms in
the afternoon. Chance of precipitation 90
percent.
Chance of thunder...40 percent.
Max temperature.....52-57.
24 hr trend......16 degrees cooler.
Min humidity........46-52 percent.
24 hr trend......24 percent wetter.
20-foot winds.......North winds 15 to 20 mph with gusts to around
35 mph.
Ridge top winds.....North around 20 mph.
Chc of wetting rain.75 percent until 1200, then 35 percent.
Transport winds.....North around 20 mph until 1200, then west.
Mixing Height.......1400-2800 ft agl until 1200, then 3200-5200 ft
agl.
Smoke dispersal.....Fair to good.
.TONIGHT...
Sky/weather.........Partly cloudy. Scattered showers early in the
evening. Isolated thunderstorms early in the
evening. Isolated showers in the evening.
Chance of precipitation 50 percent.
Chance of thunder...20 percent.
Min temperature.....33-38.
24 hr trend......3 degrees cooler.
Max humidity........75-81 percent.
24 hr trend......14 percent drier.
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.....Northwest around 20 mph until 2400, then
southwest around 10 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West around 20 mph until 2400, then around 10
mph.
Mixing Height.......2000-4000 ft agl until 2400, then 400-1000 ft
agl.
Smoke dispersal.....Fair to good until 2400, then poor.
.MONDAY...
Sky/weather.........Mostly sunny.
Chance of thunder...0 percent.
Max temperature.....63-68.
24 hr trend......10 degrees warmer.
Min humidity........27-33 percent.
24 hr trend......19 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph until 0900, then
southeast 10 to 15 mph. Gusts up to 25 mph.
Ridge top winds.....South around 10 mph until 1200, then southeast
around 20 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest 15 to 20 mph.
Mixing Height.......1800-3800 ft agl until 1200, then 6000-8000 ft
agl.
Smoke dispersal.....Poor to fair until 1200, then good to very
good.
.Forecast days 3 through 7......
.MONDAY NIGHT...Not as cool. Partly cloudy. Lows in the mid 40s.
Winds generally less than 10 mph.
.TUESDAY...Partly cloudy with scattered showers and isolated
thunderstorms. Lows in the upper 40s. Highs around 70. Winds
generally less than 10 mph.
.WEDNESDAY...Mostly clear. Isolated showers and thunderstorms.
Lows in the lower 50s. Highs in the mid 70s. Winds generally less
than 10 mph.
.THURSDAY...Partly cloudy. Lows in the mid 50s. Highs in the
lower 80s. Southwest winds around 10 mph.
.FRIDAY THROUGH SATURDAY...Partly cloudy with isolated showers
and thunderstorms. Lows in the lower 50s. Highs 77 to 82.
$$
WYZ287-231230-
Owl Creek Mountains-
418 AM MDT Sun Jun 22 2025
.TODAY...
Sky/weather.........Mostly cloudy then becoming partly cloudy.
Numerous showers and isolated thunderstorms in
the morning, then scattered showers and
thunderstorms in the afternoon. Chance of
precipitation 70 percent.
Chance of thunder...40 percent.
Max temperature.....53-58.
24 hr trend......19 degrees cooler.
Min humidity........34-40 percent.
24 hr trend......22 percent wetter.
20-foot winds.......Northeast winds around 15 mph until 1200, then
west. Gusts up to 35 mph.
Ridge top winds.....Northeast around 20 mph until 1200, then west.
Chc of wetting rain.45 percent until 1200, then 20 percent.
Transport winds.....East around 20 mph until 1200, then southwest.
Mixing Height.......800-2800 ft agl until 1200, then 4800-6800 ft
agl.
Smoke dispersal.....Poor to fair until 1200, then very good.
.TONIGHT...
Sky/weather.........Mostly clear. Isolated showers early in the
evening. Chance of showers 20 percent.
Chance of thunder...0 percent.
Min temperature.....35-40.
24 hr trend......6 degrees cooler.
Max humidity........74-80 percent.
24 hr trend......12 percent drier.
Humidity recovery...Excellent.
20-foot winds.......West winds 15 to 20 mph with gusts to around 35
mph until 2400, then north around 10 mph and
gusty until 0300, then southwest and gusty.
Ridge top winds.....West around 25 mph until 2400, then around 15
mph.
Chc of wetting rain.Zero percent.
Transport winds.....West around 25 mph until 2400, then northwest
around 15 mph.
Mixing Height.......2800-4800 ft agl until 2400, then 200-800 ft
agl.
Smoke dispersal.....Good until 2400, then poor.
.MONDAY...
Sky/weather.........Mostly sunny then becoming partly cloudy.
Chance of thunder...0 percent.
Max temperature.....61-66.
24 hr trend......9 degrees warmer.
Min humidity........22-28 percent.
24 hr trend......13 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph until 0900, then
southeast around 10 mph. Gusts up to 20 mph.
Ridge top winds.....South 10 to 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....South 10 to 15 mph.
Mixing Height.......1000-3000 ft agl until 1200, then 4200-6200 ft
agl.
Smoke dispersal.....Poor to fair.
.Forecast days 3 through 7......
.MONDAY NIGHT...Not as cool. Partly cloudy. Lows in the upper
40s. North winds around 10 mph.
.TUESDAY...Partly cloudy with scattered showers and isolated
thunderstorms. Lows in the upper 40s. Highs in the upper 60s.
North winds around 10 mph.
.WEDNESDAY...Mostly clear. Isolated showers and thunderstorms.
Lows in the lower 50s. Highs in the lower 70s. Southwest winds
around 10 mph.
.THURSDAY...Mostly clear. Lows in the mid 50s. Highs in the upper
70s. Southwest winds around 10 mph.
.FRIDAY...Partly cloudy. Lows in the mid 50s. Highs around 80.
.SATURDAY...Mostly sunny. Isolated showers and thunderstorms in
the afternoon. Highs in the upper 70s.
$$
WYZ286-231230-
Absaroka Mountains/North Shoshone NF-
Including the city of Pahaska
418 AM MDT Sun Jun 22 2025
.TODAY...
Sky/weather.........Mostly cloudy then becoming partly cloudy. Snow
showers and isolated thunderstorms in the
morning. Numerous showers through the day.
Numerous snow showers and scattered
thunderstorms in the afternoon. Snow
accumulation up to 3 inches. Chance of
precipitation 90 percent.
Chance of thunder...40 percent.
Max temperature.....47-52.
24 hr trend......15 degrees cooler.
Min humidity........42-48 percent.
24 hr trend......16 percent wetter.
20-foot winds.......Breezy. Southwest winds 10 to 15 mph with gusts
to around 30 mph until 1200, then west 20 to 25
mph with gusts to around 45 mph.
Ridge top winds.....Southwest 20 to 25 mph.
Chc of wetting rain.65 percent until 1200, then 35 percent.
Transport winds.....Southwest around 20 mph until 1200, then around
30 mph.
Mixing Height.......1600-3600 ft agl until 1200, then 4800-6800 ft
agl.
Smoke dispersal.....Poor to fair until 1200, then very good to
excellent.
.TONIGHT...
Sky/weather.........Partly cloudy. Scattered snow showers, showers
and isolated thunderstorms in the evening.
Chance of precipitation 50 percent.
Chance of thunder...20 percent.
Min temperature.....29-34.
24 hr trend......5 degrees cooler.
Max humidity........71-77 percent.
24 hr trend......16 percent drier.
Humidity recovery...Excellent.
20-foot winds.......Breezy. West winds 20 to 25 mph with gusts to
around 45 mph until 2400, then 10 to 15 mph
with gusts to around 30 mph.
Ridge top winds.....West around 25 mph until 2400, then around 15
mph.
Chc of wetting rain.15 percent until 2400, then zero percent.
Transport winds.....West 20 to 25 mph.
Mixing Height.......2200-4200 ft agl until 2400, then 400-1200 ft
agl.
Smoke dispersal.....Good until 2400, then poor.
.MONDAY...
Sky/weather.........Partly cloudy.
Chance of thunder...0 percent.
Max temperature.....56-61.
24 hr trend......9 degrees warmer.
Min humidity........28-34 percent.
24 hr trend......11 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.....West 15 to 20 mph.
Mixing Height.......1800-3800 ft agl until 1200, then 5600-7600 ft
agl.
Smoke dispersal.....Poor to fair until 1200, then good to very
good.
.Forecast days 3 through 7......
.MONDAY NIGHT...Partly cloudy. Lows in the upper 30s. Winds
generally less than 10 mph.
.TUESDAY...Partly cloudy with scattered showers and
thunderstorms. Lows in the upper 30s. Highs around 60. Winds
generally less than 10 mph.
.WEDNESDAY THROUGH THURSDAY...Mostly clear with isolated showers
and thunderstorms. Lows 43 to 48. Highs 66 to 71. Southwest winds
around 10 mph.
.FRIDAY...Partly cloudy with isolated showers and thunderstorms.
Lows in the mid 40s. Highs around 70.
.SATURDAY...Mostly sunny. Isolated showers and thunderstorms in
the afternoon. Highs in the upper 60s.
$$
WYZ140-231230-
Yellowstone National Park-
Including the cities of Lake, Mammoth, and Old Faithful
418 AM MDT Sun Jun 22 2025
.TODAY...
Sky/weather.........Mostly cloudy. Isolated thunderstorms in the
morning. Snow showers and showers through the
day. Scattered thunderstorms in the afternoon.
Snow accumulation up to 5 inches. Chance of
precipitation near 100 percent.
Chance of thunder...40 percent.
Max temperature.....44-49.
24 hr trend......12 degrees cooler.
Min humidity........55-61 percent.
24 hr trend......28 percent wetter.
20-foot winds.......Southwest winds 10 to 15 mph with gusts to
around 35 mph.
Ridge top winds.....Southwest 15 to 20 mph.
Chc of wetting rain.80 percent until 1200, then 70 percent.
Transport winds.....Southwest around 15 mph until 1200, then around
30 mph.
Mixing Height.......2400-4400 ft agl.
Smoke dispersal.....Poor to fair until 1200, then good to very
good.
.TONIGHT...
Sky/weather.........Mostly cloudy then becoming partly cloudy.
Numerous snow showers, showers and isolated
thunderstorms in the evening, then isolated
snow showers after midnight. Snow accumulation
up to 1 inch. Chance of precipitation 70
percent.
Chance of thunder...20 percent.
Min temperature.....25-30.
24 hr trend......4 degrees cooler.
Max humidity........86-92 percent.
24 hr trend......3 percent drier.
Humidity recovery...Excellent.
20-foot winds.......Southwest winds 10 to 15 mph with gusts to
around 35 mph until 2400, then
downslope/downvalley 4-7 mph.
Ridge top winds.....Southwest 10 to 15 mph.
Chc of wetting rain.25 percent until 2400, then zero percent.
Transport winds.....West around 20 mph until 2400, then southwest
around 10 mph.
Mixing Height.......1200-3200 ft agl until 2400, then 400-1000 ft
agl.
Smoke dispersal.....Poor to fair.
.MONDAY...
Sky/weather.........Partly cloudy then becoming mostly sunny.
Chance of thunder...0 percent.
Max temperature.....56-61.
24 hr trend......12 degrees warmer.
Min humidity........27-33 percent.
24 hr trend......24 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph until 0900, then
southwest around 10 mph. Gusts up to 25 mph.
Ridge top winds.....Southwest 10 to 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest 10 to 15 mph.
Mixing Height.......1400-3400 ft agl until 1200, then 5000-7000 ft
agl.
Smoke dispersal.....Poor until 1200, then good.
.Forecast days 3 through 7......
.MONDAY NIGHT...Mostly clear. Lows in the lower 30s. Winds
generally less than 10 mph.
.TUESDAY...Partly cloudy with scattered showers and isolated
thunderstorms. Lows in the mid 30s. Highs in the lower 60s. Winds
generally less than 10 mph.
.WEDNESDAY...Mostly clear. Lows around 40. Highs in the upper
60s. Winds generally less than 10 mph.
.THURSDAY...Partly cloudy. Lows in the lower 40s. Highs around
70. South winds around 10 mph.
.FRIDAY...Partly cloudy with isolated showers and thunderstorms.
Lows in the lower 40s. Highs in the upper 60s.
.SATURDAY...Mostly sunny. Isolated showers and thunderstorms in
the afternoon. Highs in the upper 60s.
$$
WYZ415-231230-
North Zone Bridger Teton NF and Grand Teton NP-
Including the cities of Jackson and Moran
418 AM MDT Sun Jun 22 2025
...FREEZE WARNING IN EFFECT FROM MIDNIGHT TONIGHT TO 8 AM MDT
MONDAY...
.TODAY...
Sky/weather.........Mostly cloudy. Isolated thunderstorms in the
morning. Numerous snow showers and showers
through the day. Scattered thunderstorms in the
afternoon. Snow accumulation up to 3 inches.
Chance of precipitation 70 percent.
Chance of thunder...40 percent.
Max temperature.....45-50.
24 hr trend......13 degrees cooler.
Min humidity........45-51 percent.
24 hr trend......19 percent wetter.
20-foot winds.......Southwest winds 10 to 15 mph until 1500, then
around 20 mph. Gusts up to 35 mph.
Ridge top winds.....Southwest 15 to 20 mph.
Chc of wetting rain.40 percent until 1200, then 50 percent.
Transport winds.....Southwest around 15 mph until 1200, then around
30 mph.
Mixing Height.......1800-3800 ft agl until 1200, then 4800-6800 ft
agl.
Smoke dispersal.....Poor to fair until 1200, then very good to
excellent.
.TONIGHT...
Sky/weather.........Partly cloudy. Scattered showers, snow showers
and isolated thunderstorms in the evening.
Chance of precipitation 50 percent.
Chance of thunder...20 percent.
Min temperature.....26-31.
24 hr trend......4 degrees cooler.
Max humidity........77-83 percent.
24 hr trend......3 percent drier.
Humidity recovery...Excellent.
20-foot winds.......Southwest winds 10 to 15 mph with gusts to
around 35 mph until 2400, then
downslope/downvalley 4-7 mph.
Ridge top winds.....Southwest around 20 mph until 2400, then south
around 10 mph.
Chc of wetting rain.15 percent until 2400, then zero percent.
Transport winds.....Southwest around 20 mph until 2400, then around
10 mph.
Mixing Height.......2000-4000 ft agl until 2400, then 400-1200 ft
agl.
Smoke dispersal.....Fair to good until 2400, then poor.
.MONDAY...
Sky/weather.........Mostly sunny.
Chance of thunder...0 percent.
Max temperature.....56-61.
24 hr trend......11 degrees warmer.
Min humidity........28-34 percent.
24 hr trend......17 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph until 1200, then
southwest around 10 mph. Gusts up to 20 mph.
Ridge top winds.....Southwest 10 to 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest 10 to 15 mph.
Mixing Height.......1600-3600 ft agl until 1200, then 5600-7600 ft
agl.
Smoke dispersal.....Poor until 1200, then good.
.Forecast days 3 through 7......
.MONDAY NIGHT...Partly cloudy. Lows in the mid 30s. Winds
generally less than 10 mph.
.TUESDAY...Partly cloudy with isolated showers and thunderstorms.
Lows in the mid 30s. Highs in the lower 60s. Winds generally less
than 10 mph.
.WEDNESDAY THROUGH THURSDAY...Mostly clear. Lows 39 to 44. Highs
67 to 72. South winds around 10 mph.
.FRIDAY...Partly cloudy. Lows in the mid 40s. Highs in the lower
70s.
.SATURDAY...Mostly sunny. Highs around 70.
$$
WYZ416-231230-
West Wind River Mountains/East Zone Bridger Teton NF-
418 AM MDT Sun Jun 22 2025
.TODAY...
Sky/weather.........Mostly cloudy then becoming partly cloudy.
Scattered snow showers and showers through the
day. Scattered thunderstorms in the afternoon.
Chance of precipitation 50 percent.
Chance of thunder...30 percent.
Max temperature.....47-52.
24 hr trend......15 degrees cooler.
Min humidity........30-36 percent.
24 hr trend......7 percent wetter.
20-foot winds.......Southwest winds 10 to 15 mph until 1200, then
west around 20 mph. Gusts up to 40 mph.
Ridge top winds.....Southwest 20 to 25 mph.
Chc of wetting rain.7 percent.
Transport winds.....Southwest around 20 mph until 1200, then around
30 mph.
Mixing Height.......1600-3600 ft agl until 1200, then 5600-7600 ft
agl.
Smoke dispersal.....Fair to good until 1200, then excellent.
.TONIGHT...
Sky/weather.........Partly cloudy. Isolated thunderstorms early in
the evening. Isolated snow showers early in the
evening. Chance of precipitation 20 percent.
Chance of thunder...10 percent.
Min temperature.....24-29.
24 hr trend......6 degrees cooler.
Max humidity........67-73 percent.
24 hr trend......8 percent drier.
Humidity recovery...Good.
20-foot winds.......West winds 15 to 20 mph with gusts to around 40
mph until 2400, then northwest around 10 mph
and gusty until 0300, then downslope/downvalley
4-7 mph.
Ridge top winds.....West around 20 mph until 2400, then north
around 10 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West around 25 mph until 2400, then northwest
around 10 mph.
Mixing Height.......2400-4400 ft agl until 2400, then 400-1000 ft
agl.
Smoke dispersal.....Good until 2400, then poor.
.MONDAY...
Sky/weather.........Mostly sunny then becoming partly cloudy.
Chance of thunder...0 percent.
Max temperature.....56-61.
24 hr trend......9 degrees warmer.
Min humidity........22-28 percent.
24 hr trend......9 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph until 0900, then
southwest around 10 mph. Gusts up to 20 mph.
Ridge top winds.....Southwest 10 to 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest 10 to 15 mph.
Mixing Height.......1400-3400 ft agl until 1200, then 4800-6800 ft
agl.
Smoke dispersal.....Poor until 1200, then good.
.Forecast days 3 through 7......
.MONDAY NIGHT...Not as cool. Partly cloudy. Lows in the upper
30s. Winds generally less than 10 mph.
.TUESDAY...Partly cloudy. Isolated showers and thunderstorms.
Lows in the upper 30s. Highs in the lower 60s. Winds generally
less than 10 mph.
.WEDNESDAY...Mostly clear. Isolated showers and thunderstorms.
Lows around 40. Highs in the mid 60s. Winds generally less than
10 mph.
.THURSDAY...Mostly clear. Lows in the lower 40s. Highs in the
upper 60s. Southwest winds around 10 mph.
.FRIDAY THROUGH SATURDAY...Mostly clear. Lows in the mid 40s.
Highs in the upper 60s.
$$
WYZ288-231230-
East Wind River Mountains/South Shoshone NF-
Including the cities of Dubois and South Pass
418 AM MDT Sun Jun 22 2025
.TODAY...
Sky/weather.........Partly cloudy. Isolated thunderstorms in the
morning. Scattered showers and snow showers
through the day. Scattered thunderstorms in the
afternoon. Chance of precipitation 50 percent.
Chance of thunder...30 percent.
Max temperature.....50-55.
24 hr trend......16 degrees cooler.
Min humidity........34-40 percent.
24 hr trend......5 percent wetter.
20-foot winds.......Windy. Southwest winds 15 to 20 mph until 1200,
then west 25 to 30 mph. Gusts up to 50 mph.
Ridge top winds.....Southwest 25 to 30 mph.
Chc of wetting rain.5 percent.
Transport winds.....Southwest around 25 mph until 1200, then around
35 mph.
Mixing Height.......2000-4000 ft agl until 1200, then 6400-8400 ft
agl.
Smoke dispersal.....Good until 1200, then excellent.
.TONIGHT...
Sky/weather.........Partly cloudy. Scattered snow showers early in
the evening. Isolated snow showers early in the
evening. Chance of snow 50 percent.
Chance of thunder...0 percent.
Min temperature.....27-32.
24 hr trend......9 degrees cooler.
Max humidity........65-71 percent.
24 hr trend......18 percent drier.
Humidity recovery...Good.
20-foot winds.......Breezy. West winds 20 to 25 mph with gusts to
around 50 mph until 2400, then 10 to 15 mph
with gusts to around 30 mph.
Ridge top winds.....West around 25 mph until 2400, then around 15
mph.
Chc of wetting rain.Zero percent.
Transport winds.....West around 30 mph until 2400, then around 15
mph.
Mixing Height.......3000-5000 ft agl until 2400, then 400-1000 ft
agl.
Smoke dispersal.....Very good until 2400, then poor.
.MONDAY...
Sky/weather.........Mostly sunny then becoming partly cloudy.
Chance of thunder...0 percent.
Max temperature.....59-64.
24 hr trend......9 degrees warmer.
Min humidity........23-29 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.....Southwest 10 to 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest around 10 mph until 1200, then around
20 mph.
Mixing Height.......1400-3400 ft agl until 1200, then 5200-7200 ft
agl.
Smoke dispersal.....Poor to fair until 1200, then good to very
good.
.Forecast days 3 through 7......
.MONDAY NIGHT...Not as cool. Partly cloudy. Lows in the lower
40s. West winds around 10 mph.
.TUESDAY...Partly cloudy with scattered showers and isolated
thunderstorms. Lows in the lower 40s. Highs in the mid 60s. West
winds around 10 mph.
.WEDNESDAY...Mostly clear. Isolated showers and thunderstorms.
Lows in the mid 40s. Highs in the upper 60s. West winds around
10 mph.
.THURSDAY...Mostly clear. Lows in the upper 40s. Highs in the
lower 70s. Southwest winds around 10 mph.
.FRIDAY THROUGH SATURDAY...Mostly clear. Lows in the upper 40s.
Highs in the lower 70s.
$$
WYZ414-231230-
Salt and Wyoming Ranges/West Zone Bridger Teton NF-
Including the city of Afton
418 AM MDT Sun Jun 22 2025
.TODAY...
Sky/weather.........Partly cloudy. Scattered snow showers and
showers through the day. Isolated thunderstorms
early in the afternoon, then scattered
thunderstorms late in the afternoon. Chance of
precipitation 50 percent.
Chance of thunder...30 percent.
Max temperature.....43-48.
24 hr trend......13 degrees cooler.
Min humidity........49-55 percent.
24 hr trend......13 percent wetter.
20-foot winds.......West winds 15 to 20 mph with gusts to around 40
mph.
Ridge top winds.....West 20 to 25 mph.
Chc of wetting rain.15 percent.
Transport winds.....West around 20 mph until 1200, then around 30
mph.
Mixing Height.......1800-3800 ft agl until 1200, then 5400-7400 ft
agl.
Smoke dispersal.....Fair to good until 1200, then very good to
excellent.
.TONIGHT...
Sky/weather.........Partly cloudy. Isolated snow showers early in
the evening. Isolated showers and thunderstorms
early in the evening. Chance of precipitation
20 percent.
Chance of thunder...20 percent.
Min temperature.....26-31.
24 hr trend......1 degree cooler.
Max humidity........77-83 percent.
24 hr trend......4 percent drier.
Humidity recovery...Excellent.
20-foot winds.......West winds around 20 mph with gusts to around
40 mph until 2100, then around 10 mph with
gusts to around 40 mph until 2400, then
downslope/downvalley 4-7 mph.
Ridge top winds.....West around 20 mph until 2400, then southwest
around 10 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West 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.
.MONDAY...
Sky/weather.........Partly cloudy.
Chance of thunder...0 percent.
Max temperature.....57-62.
24 hr trend......12 degrees warmer.
Min humidity........25-31 percent.
24 hr trend......16 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph until 1200, then
southwest around 10 mph with gusts to around 25
mph.
Ridge top winds.....South around 10 mph until 1200, then southwest.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest 10 to 15 mph.
Mixing Height.......1600-3600 ft agl until 1200, then 5600-7600 ft
agl.
Smoke dispersal.....Poor until 1200, then good.
.Forecast days 3 through 7......
.MONDAY NIGHT...Not as cool. Partly cloudy. Lows in the upper
30s. Winds generally less than 10 mph.
.TUESDAY...Partly cloudy with isolated showers and thunderstorms.
Lows around 40. Highs in the mid 60s. Winds generally less than
10 mph.
.WEDNESDAY THROUGH THURSDAY...Mostly clear. Lows 42 to 47. Highs
68 to 73. Southwest winds around 10 mph.
.FRIDAY THROUGH SATURDAY...Mostly clear. Lows in the upper 40s.
Highs in the lower 70s.
$$
WYZ278-231230-
Upper Green River Basin/Rock Springs BLM-
Including the cities of Big Piney, Farson, and Pinedale
418 AM MDT Sun Jun 22 2025
...FREEZE WARNING IN EFFECT FROM MIDNIGHT TONIGHT TO 8 AM MDT
MONDAY...
.TODAY...
Sky/weather.........Partly cloudy. Scattered snow showers in the
morning. Isolated showers through the day.
Isolated thunderstorms and snow showers in the
afternoon. Chance of precipitation 40 percent.
Chance of thunder...20 percent.
Max temperature.....53-58.
24 hr trend......15 degrees cooler.
Min humidity........25-31 percent.
24 hr trend......3 percent wetter.
20-foot winds.......Breezy. West winds 15 to 20 mph until 1200,
then around 25 mph. Gusts up to 40 mph.
Ridge top winds.....West around 20 mph until 1200, then around 30
mph.
Chc of wetting rain.Zero percent.
Transport winds.....West around 20 mph until 1200, then around 30
mph.
Mixing Height.......2400-4400 ft agl until 1200, then 7000-9000 ft
agl.
Smoke dispersal.....Good until 1200, then excellent.
.TONIGHT...
Sky/weather.........Partly cloudy.
Chance of thunder...0 percent.
Min temperature.....27-32.
24 hr trend......7 degrees cooler.
Max humidity........72-78 percent.
24 hr trend......15 percent wetter.
Humidity recovery...Excellent.
20-foot winds.......West winds 15 to 20 mph with gusts to around 40
mph until 2400. Downslope/downvalley 4-7 mph
after 0300.
Ridge top winds.....West around 25 mph until 2400, then northwest
around 10 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West around 25 mph until 2400, then northwest
around 10 mph.
Mixing Height.......3400-5400 ft agl until 2400, then 400-800 ft
agl.
Smoke dispersal.....Very good until 2400, then poor.
.MONDAY...
Sky/weather.........Partly cloudy.
Chance of thunder...0 percent.
Max temperature.....62-67.
24 hr trend......10 degrees warmer.
Min humidity........16-22 percent.
24 hr trend......7 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph until 1500, then
southwest around 10 mph. Gusts up to 20 mph.
Ridge top winds.....North around 10 mph until 1200, then southwest.
Chc of wetting rain.Zero percent.
Transport winds.....West 10 to 15 mph.
Mixing Height.......1200-3200 ft agl until 1200, then 5200-7200 ft
agl.
Smoke dispersal.....Poor until 1200, then good.
.Forecast days 3 through 7......
.MONDAY NIGHT...Not as cool. Partly cloudy. Lows around 40. North
winds around 10 mph.
.TUESDAY...Partly cloudy. Lows around 40. Highs in the lower 70s.
Northwest winds around 10 mph.
.WEDNESDAY THROUGH THURSDAY...Mostly clear. Lows 41 to 46. Highs
75 to 80. Southwest winds around 10 mph.
.FRIDAY THROUGH SATURDAY...Mostly clear. Lows in the mid 40s.
Highs in the lower 80s.
$$
WYZ277-231230-
Lincoln and Uinta Counties/Lower Elevations-
Including the cities of Evanston, Fort Bridger, and Kemmerer
418 AM MDT Sun Jun 22 2025
...FREEZE WARNING IN EFFECT FROM MIDNIGHT TONIGHT TO 8 AM MDT
MONDAY...
.TODAY...
Sky/weather.........Partly cloudy. Isolated snow showers in the
morning. Isolated showers early in the morning.
Chance of precipitation 20 percent.
Chance of thunder...0 percent.
Max temperature.....53-58.
24 hr trend......14 degrees cooler.
Min humidity........25-31 percent.
24 hr trend......3 percent wetter.
20-foot winds.......Breezy. West winds 15 to 20 mph until 1200,
then around 25 mph. Gusts up to 35 mph.
Ridge top winds.....West 25 to 30 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West 25 to 30 mph.
Mixing Height.......2000-4000 ft agl until 1200, then 6600-8600 ft
agl.
Smoke dispersal.....Fair to good until 1200, then excellent.
.TONIGHT...
Sky/weather.........Mostly clear.
Chance of thunder...0 percent.
Min temperature.....28-33.
24 hr trend......2 degrees cooler.
Max humidity........78-84 percent.
24 hr trend......2 percent wetter.
Humidity recovery...Excellent.
20-foot winds.......West winds 15 to 20 mph with gusts to around 35
mph until 2400, then downslope/downvalley 4-7
mph.
Ridge top winds.....West around 20 mph until 2400, then north
around 10 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West around 20 mph until 2400, then north
around 10 mph.
Mixing Height.......3000-5000 ft agl until 2400, then 400-600 ft
agl.
Smoke dispersal.....Good to very good until 2400, then poor.
.MONDAY...
Sky/weather.........Mostly sunny then becoming partly cloudy.
Chance of thunder...0 percent.
Max temperature.....62-67.
24 hr trend......11 degrees warmer.
Min humidity........16-22 percent.
24 hr trend......7 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph until 1500, then west
around 10 mph with higher gusts.
Ridge top winds.....East around 10 mph until 1200, then southwest.
Chc of wetting rain.Zero percent.
Transport winds.....Southeast around 10 mph until 1200, then
southwest.
Mixing Height.......1200-3200 ft agl until 1200, then 5200-7200 ft
agl.
Smoke dispersal.....Poor until 1200, then good.
.Forecast days 3 through 7......
.MONDAY NIGHT...Not as cool. Partly cloudy. Lows in the lower
40s. Winds generally less than 10 mph.
.TUESDAY...Partly cloudy. Lows in the lower 40s. Highs in the
lower 70s. Winds generally less than 10 mph.
.WEDNESDAY...Clear. Lows in the lower 40s. Highs in the mid 70s.
Winds generally less than 10 mph.
.THURSDAY...Mostly clear. Lows in the mid 40s. Highs around 80.
Southwest winds around 10 mph.
.FRIDAY...Mostly clear. Lows in the upper 40s. Highs in the lower
80s.
.SATURDAY...Sunny. Highs in the lower 80s.
$$
WYZ279-231230-
Sweetwater County/Rock Springs BLM/Flaming Gorge NRA-
Including the cities of Green River, Rock Springs, and Wamsutter
418 AM MDT Sun Jun 22 2025
.TODAY...
Sky/weather.........Partly cloudy.
Chance of thunder...0 percent.
Max temperature.....62-67.
24 hr trend......19 degrees cooler.
Min humidity........16-22 percent.
24 hr trend......8 percent wetter.
20-foot winds.......Breezy. West winds 20 to 25 mph with gusts to
around 40 mph.
Ridge top winds.....West 25 to 30 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West 25 to 30 mph.
Mixing Height.......2200-4200 ft agl until 1200, then 6600-8600 ft
agl.
Smoke dispersal.....Good until 1200, then excellent.
.TONIGHT...
Sky/weather.........Mostly clear.
Chance of thunder...0 percent.
Min temperature.....32-37.
24 hr trend......6 degrees cooler.
Max humidity........67-73 percent.
24 hr trend......6 percent wetter.
Humidity recovery...Good.
20-foot winds.......Northwest winds 15 to 20 mph with gusts to
around 35 mph until 2400. Downslope/downvalley
4-7 mph after 0300.
Ridge top winds.....Northwest around 25 mph until 2400, then west
around 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West around 25 mph until 2400, then northwest
around 15 mph.
Mixing Height.......3600-5600 ft agl until 2400, then 400-1000 ft
agl.
Smoke dispersal.....Good to very good until 2400, then poor.
.MONDAY...
Sky/weather.........Mostly sunny.
Chance of thunder...0 percent.
Max temperature.....69-74.
24 hr trend......9 degrees warmer.
Min humidity........14-20 percent.
24 hr trend......5 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph until 1500, then west
around 10 mph with gusts to around 25 mph.
Ridge top winds.....Northeast around 10 mph until 1200, then
southwest.
Chc of wetting rain.Zero percent.
Transport winds.....West 10 to 15 mph.
Mixing Height.......1200-3200 ft agl until 1200, then 6000-8000 ft
agl.
Smoke dispersal.....Poor until 1200, then good to very good.
.Forecast days 3 through 7......
.MONDAY NIGHT...Mostly clear. Lows in the mid 40s. Northwest
winds around 10 mph.
.TUESDAY...Mostly clear. Lows in the mid 40s. Highs in the upper
70s. Northwest winds around 10 mph.
.WEDNESDAY THROUGH THURSDAY...Mostly clear. Lows 47 to 52. Highs
78 to 83. Southwest winds around 10 mph.
.FRIDAY THROUGH SATURDAY...Mostly clear. Lows in the lower 50s.
Highs in the mid 80s.
$$
WYZ289-231230-
Granite/Green/Ferris/Rattlesnake Mountains-
Including the city of Jeffrey City
418 AM MDT Sun Jun 22 2025
.TODAY...
Sky/weather.........Partly cloudy then becoming mostly sunny.
Chance of thunder...0 percent.
Max temperature.....61-66.
24 hr trend......21 degrees cooler.
Min humidity........15-21 percent.
24 hr trend......8 percent wetter.
20-foot winds.......Windy. South winds around 15 mph with gusts to
around 40 mph until 0900, then southwest 25 to
30 mph with gusts to around 50 mph.
Ridge top winds.....Southwest around 25 mph until 1200, then west
around 35 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest around 25 mph until 1200, then around
35 mph.
Mixing Height.......2200-4200 ft agl until 1200, then 7000-9000 ft
agl.
Smoke dispersal.....Good until 1200, then excellent.
.TONIGHT...
Sky/weather.........Mostly clear.
Chance of thunder...0 percent.
Min temperature.....35-40.
24 hr trend......9 degrees cooler.
Max humidity........57-63 percent.
24 hr trend......15 percent drier.
Humidity recovery...Good.
20-foot winds.......Breezy. West winds 20 to 25 mph with gusts to
around 45 mph until 2400, then around 10 mph
with gusts to around 25 mph.
Ridge top winds.....West around 25 mph until 2400, then around 15
mph.
Chc of wetting rain.Zero percent.
Transport winds.....West around 25 mph until 2400, then around 15
mph.
Mixing Height.......4000-6000 ft agl until 2400, then 400-1000 ft
agl.
Smoke dispersal.....Very good until 2400, then poor.
.MONDAY...
Sky/weather.........Mostly sunny.
Chance of thunder...0 percent.
Max temperature.....66-71.
24 hr trend......8 degrees warmer.
Min humidity........12-18 percent.
24 hr trend......4 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph until 1200, then
southwest around 10 mph with gusts to around 25
mph.
Ridge top winds.....South 10 to 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest 10 to 15 mph.
Mixing Height.......1400-3400 ft agl until 1200, then 5800-7800 ft
agl.
Smoke dispersal.....Poor until 1200, then good to very good.
.Forecast days 3 through 7......
.MONDAY NIGHT...Mostly clear. Lows in the mid 40s. North winds
around 10 mph.
.TUESDAY...Partly cloudy. Isolated showers and thunderstorms.
Lows in the upper 40s. Highs in the upper 70s. North winds around
10 mph.
.WEDNESDAY...Mostly clear. Isolated showers and thunderstorms.
Lows in the upper 40s. Highs in the upper 70s. Southwest winds
around 10 mph.
.THURSDAY...Mostly clear. Lows in the lower 50s. Highs in the
lower 80s. Southwest winds around 10 mph.
.FRIDAY THROUGH SATURDAY...Mostly clear. Lows in the lower 50s.
Highs in the mid 80s.
$$
WYZ300-231230-
Casper Mountain-
418 AM MDT Sun Jun 22 2025
.TODAY...
Sky/weather.........Partly cloudy then becoming mostly sunny. Haze
early in the afternoon.
Chance of thunder...0 percent.
Max temperature.....63-68.
24 hr trend......18 degrees cooler.
Min humidity........22-28 percent.
24 hr trend......14 percent wetter.
20-foot winds.......Breezy. South winds around 10 mph with gusts to
around 35 mph until 0900, then southwest 20 to
25 mph with gusts to around 45 mph.
Ridge top winds.....Southwest around 20 mph until 1200, then around
30 mph.
Chc of wetting rain.Zero percent.
Transport winds.....South around 20 mph until 1200, then southwest
around 40 mph.
Mixing Height.......2600-4600 ft agl until 1200, then 7600-9600 ft
agl.
Smoke dispersal.....Good to very good until 1200, then excellent.
.TONIGHT...
Sky/weather.........Mostly clear.
Chance of thunder...0 percent.
Min temperature.....36-41.
24 hr trend......11 degrees cooler.
Max humidity........60-66 percent.
24 hr trend......19 percent drier.
Humidity recovery...Good.
20-foot winds.......Breezy. West winds around 25 mph with gusts to
around 40 mph until 2100. Downslope/downvalley
4-7 mph after 0300.
Ridge top winds.....West around 25 mph until 2400, then around 15
mph.
Chc of wetting rain.Zero percent.
Transport winds.....West around 25 mph until 2400, then around 15
mph.
Mixing Height.......3400-5400 ft agl until 2400, then 200-600 ft
agl.
Smoke dispersal.....Very good until 2400, then poor.
.MONDAY...
Sky/weather.........Mostly sunny.
Chance of thunder...0 percent.
Max temperature.....64-69.
24 hr trend......2 degrees warmer.
Min humidity........24-30 percent.
24 hr trend......2 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph until 0900, then south
around 10 mph with gusts to around 25 mph.
Ridge top winds.....South 10 to 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest around 10 mph until 1200, then around
20 mph.
Mixing Height.......1400-3400 ft agl until 1200, then 6400-8400 ft
agl.
Smoke dispersal.....Poor until 1200, then very good.
.Forecast days 3 through 7......
.MONDAY NIGHT...Not as cool. Mostly clear. Isolated showers in
the evening. Lows in the upper 40s. Southeast winds around
15 mph.
.TUESDAY THROUGH WEDNESDAY...Partly cloudy with scattered showers
and thunderstorms. Lows around 50. Highs 71 to 76. South winds
around 10 mph.
.THURSDAY...Mostly clear. Lows in the lower 50s. Highs in the
upper 70s. Southwest winds around 10 mph.
.FRIDAY THROUGH SATURDAY...Mostly clear. Lows in the lower 50s.
Highs in the lower 80s.
$$