Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS Riverton, WY
Issued by NWS Riverton, WY
709
FNUS55 KRIW 310838
FWFRIW
Fire Weather Planning Forecast for Western and Central Wyoming
National Weather Service Riverton WY
238 AM MDT Sat May 31 2025
.DISCUSSION...
...Yellowstone NP and Teton dispatch areas (includes fire weather
zones 140...414...415...and 416)...
High pressure will bring a warm and dry day to the area today.
Relative humidity will remain above critical levels. Wind will
remain light to moderate. Mixing and smoke dispersal will be
generally good in the afternoon. An approaching cold front
will bring a chance of showers and thunderstorms Sunday afternoon.
...Cody dispatch area (includes fire weather zones 275...276...
282...283...285...286...287...288...and 289)...
High pressure will bring a warm and dry day to the area today.
Relative humidity will remain above critical levels, but will
fall into the upper teens at times in the afternoon. Wind will
remain light to moderate. Mixing and smoke dispersal will be
generally fair to good in the afternoon. An approaching cold front
will bring a chance of showers and thunderstorms Sunday afternoon
across the northern zones.
...Casper dispatch area (includes fire weather zones 277...278...
279...280...281...285...289...and 300)...
High pressure will bring a warm and dry day to the area today.
Relative humidity will remain above critical levels, but will
fall into the upper teens at times in the afternoon. Wind will
remain light to moderate. Mixing and smoke dispersal will be
generally fair to good in the afternoon.
...Thunderstorms imply strong gusty and erratic winds...
WYZ280-011045-
Natrona County/Casper BLM-
Including the cities of Casper and Midwest
238 AM MDT Sat May 31 2025
.TODAY...
Sky/weather.........Mostly sunny.
Chance of thunder...0 percent.
Max temperature.....75-80.
24 hr trend......4 degrees warmer.
Min humidity........23-29 percent.
24 hr trend......11 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph until 1200, then north
around 10 mph until 1500, then upslope/upvalley
5-9 mph. Gusts up to 15 mph.
Ridge top winds.....North around 10 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Northwest around 10 mph.
Mixing Height.......800-2800 ft agl until 1200, then 4200-5800 ft
agl.
Smoke dispersal.....Poor to fair.
.TONIGHT...
Sky/weather.........Mostly clear.
Chance of thunder...0 percent.
Min temperature.....51-56.
24 hr trend......4 degrees warmer.
Max humidity........62-68 percent.
24 hr trend......18 percent drier.
Humidity recovery...Good.
20-foot winds.......East winds around 10 mph until 2400, then
south. Gusts up to 20 mph.
Ridge top winds.....East around 15 mph until 2400, then south.
Chc of wetting rain.Zero percent.
Transport winds.....East around 15 mph until 2400, then south.
Mixing Height.......2000-4000 ft agl until 2400, then 400-600 ft
agl.
Smoke dispersal.....Poor.
.SUNDAY...
Sky/weather.........Mostly sunny.
Chance of thunder...0 percent.
Max temperature.....86-91.
24 hr trend......10 degrees warmer.
Min humidity........17-23 percent.
24 hr trend......5 percent drier.
20-foot winds.......Southwest winds around 10 mph until 1500, then
west. Gusts up to 20 mph.
Ridge top winds.....West around 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West around 15 mph.
Mixing Height.......1400-3400 ft agl until 1200, then 6600-8600 ft
agl.
Smoke dispersal.....Poor until 1200, then good to very good.
.Forecast days 3 through 7......
.SUNDAY NIGHT...Partly cloudy. Slight chance of showers and
thunderstorms in the evening. Lows in the lower 50s. North winds
around 10 mph.
.MONDAY...Much cooler. Cloudy with showers and chance of
thunderstorms. Lows in the lower 40s. Highs in the upper 60s.
Northeast winds around 15 mph.
.TUESDAY...Cloudy with showers likely and slight chance of
thunderstorms. Lows in the lower 40s. Highs in the upper 50s.
Northeast winds around 15 mph.
.WEDNESDAY...Mostly cloudy. Showers likely and slight chance of
thunderstorms. Lows in the lower 40s. Highs in the upper 50s.
North winds around 10 mph.
.THURSDAY...Warmer. Mostly clear. Slight chance of showers. Lows
in the upper 40s. Highs in the lower 70s.
.FRIDAY...Partly cloudy. Slight chance of showers and
thunderstorms in the afternoon. Highs in the mid 70s.
$$
WYZ283-011045-
Upper Wind River Basin/Wind River Basin-
Including the cities of Crowheart, Lander, Riverton, and Shoshoni
238 AM MDT Sat May 31 2025
.TODAY...
Sky/weather.........Sunny.
Chance of thunder...0 percent.
Max temperature.....79-84.
24 hr trend......3 degrees warmer.
Min humidity........26-32 percent.
24 hr trend......2 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph.
Ridge top winds.....Northeast around 10 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Northwest around 10 mph.
Mixing Height.......800-2800 ft agl until 1200, then 3600-5600 ft
agl.
Smoke dispersal.....Poor.
.TONIGHT...
Sky/weather.........Mostly clear.
Chance of thunder...0 percent.
Min temperature.....51-56.
24 hr trend......3 degrees warmer.
Max humidity........59-65 percent.
24 hr trend......14 percent drier.
Humidity recovery...Good.
20-foot winds.......Downslope/downvalley 4-7 mph until 2100, then
east around 10 mph until 0300, then southwest.
Gusts up to 20 mph.
Ridge top winds.....Southeast around 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Southeast around 15 mph until 2400, then south.
Mixing Height.......2000-4000 ft agl until 2400, then 400-600 ft
agl.
Smoke dispersal.....Poor.
.SUNDAY...
Sky/weather.........Sunny then becoming 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.....84-89.
24 hr trend......5 degrees warmer.
Min humidity........19-25 percent.
24 hr trend......6 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph until 1500, then west
around 10 mph. Gusts up to 15 mph.
Ridge top winds.....West around 10 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West around 10 mph.
Mixing Height.......1200-3200 ft agl until 1200, then 6800-8800 ft
agl.
Smoke dispersal.....Poor until 1200, then good.
.Forecast days 3 through 7......
.SUNDAY NIGHT...Partly cloudy. Chance of showers and slight
chance of thunderstorms in the evening, then slight chance of
showers after midnight. Lows in the lower 50s. North winds around
10 mph.
.MONDAY...Not as warm. Showers likely and slight chance of
thunderstorms. Lows in the mid 40s. Highs around 70. Northeast
winds around 15 mph.
.TUESDAY...Cooler. Cloudy with showers likely and slight chance
of thunderstorms. Lows in the lower 40s. Highs around 60.
Northeast winds around 10 mph.
.WEDNESDAY...Partly cloudy. Chance of showers and slight chance
of thunderstorms. Lows in the lower 40s. Highs in the lower 60s.
Winds generally less than 10 mph.
.THURSDAY THROUGH FRIDAY...Partly cloudy with slight chance of
showers and thunderstorms. Lows in the upper 40s. Highs 71 to 76.
$$
WYZ285-011045-
South Bighorn Mountains-
238 AM MDT Sat May 31 2025
.TODAY...
Sky/weather.........Sunny.
Chance of thunder...0 percent.
Max temperature.....72-77.
24 hr trend......4 degrees warmer.
Min humidity........26-32 percent.
24 hr trend......8 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph. Gusts up to 15 mph.
Ridge top winds.....Northwest around 10 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Northwest around 10 mph.
Mixing Height.......600-2600 ft agl until 1200, then 3600-5000 ft
agl.
Smoke dispersal.....Poor to fair.
.TONIGHT...
Sky/weather.........Mostly clear.
Chance of thunder...0 percent.
Min temperature.....52-57.
24 hr trend......7 degrees warmer.
Max humidity........52-58 percent.
24 hr trend......24 percent drier.
Humidity recovery...Moderate.
20-foot winds.......Southeast winds around 10 mph until 2400, then
southwest. Gusts up to 25 mph.
Ridge top winds.....Southeast around 15 mph until 2400, then
southwest.
Chc of wetting rain.Zero percent.
Transport winds.....Southeast around 15 mph until 2400, then south.
Mixing Height.......1000-3000 ft agl until 2400, then 200-400 ft
agl.
Smoke dispersal.....Poor.
.SUNDAY...
Sky/weather.........Sunny then becoming partly cloudy.
Chance of thunder...0 percent.
Max temperature.....79-84.
24 hr trend......7 degrees warmer.
Min humidity........23-29 percent.
24 hr trend......5 percent drier.
20-foot winds.......West winds around 10 mph with higher gusts.
Ridge top winds.....West around 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West around 15 mph.
Mixing Height.......1400-3400 ft agl until 1200, then 5000-7000 ft
agl.
Smoke dispersal.....Poor to fair.
.Forecast days 3 through 7......
.SUNDAY NIGHT...Partly cloudy. Chance of showers and slight
chance of thunderstorms in the evening, then slight chance of
showers after midnight. Lows in the upper 40s. North winds around
10 mph.
.MONDAY...Much cooler. Showers likely and chance of
thunderstorms. Lows around 40. Highs around 60. North winds
around 15 mph.
.TUESDAY...Showers likely and slight chance of thunderstorms.
Lows around 40. Highs in the lower 50s. Northeast winds around
10 mph.
.WEDNESDAY...Partly cloudy. Showers likely and slight chance of
thunderstorms. Lows around 40. Highs in the lower 50s. North
winds around 10 mph.
.THURSDAY...Warmer. Mostly clear. Slight chance of showers and
thunderstorms. Lows in the mid 40s. Highs in the mid 60s.
.FRIDAY...Partly cloudy. Chance of showers and slight chance of
thunderstorms in the afternoon. Highs in the upper 60s.
$$
WYZ281-011045-
Johnson County/Casper BLM-
Including the cities of Buffalo and Kaycee
238 AM MDT Sat May 31 2025
.TODAY...
Sky/weather.........Sunny.
Chance of thunder...0 percent.
Max temperature.....74-79.
24 hr trend......6 degrees warmer.
Min humidity........22-28 percent.
24 hr trend......14 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph. Gusts up to 15 mph.
Ridge top winds.....Northwest around 10 mph until 1200, then
northeast.
Chc of wetting rain.Zero percent.
Transport winds.....West around 10 mph until 1200, then north.
Mixing Height.......800-2800 ft agl until 1200, then 3800-5200 ft
agl.
Smoke dispersal.....Poor.
.TONIGHT...
Sky/weather.........Mostly clear.
Chance of thunder...0 percent.
Min temperature.....53-58.
24 hr trend......5 degrees warmer.
Max humidity........60-66 percent.
24 hr trend......17 percent drier.
Humidity recovery...Good.
20-foot winds.......Downslope/downvalley 4-7 mph until 2100, then
south around 10 mph. Gusts up to 20 mph.
Ridge top winds.....Southeast around 10 mph until 2400, then south.
Chc of wetting rain.Zero percent.
Transport winds.....Southeast around 10 mph until 2400, then south.
Mixing Height.......1400-3400 ft agl until 2400, then 400-800 ft
agl.
Smoke dispersal.....Poor.
.SUNDAY...
Sky/weather.........Mostly sunny then becoming partly cloudy.
Chance of thunder...0 percent.
Max temperature.....82-87.
24 hr trend......9 degrees warmer.
Min humidity........25-31 percent.
24 hr trend......1 percent drier.
20-foot winds.......Southwest winds around 10 mph until 1200, then
north. Gusts up to 20 mph.
Ridge top winds.....Southwest around 15 mph until 1200, then north.
Chc of wetting rain.Zero percent.
Transport winds.....West around 15 mph until 1200, then north.
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......
.SUNDAY NIGHT...Partly cloudy. Slight chance of showers and
thunderstorms in the evening. Lows in the lower 50s. North winds
around 15 mph.
.MONDAY...Much cooler. Cloudy with showers likely and slight
chance of thunderstorms. Lows in the mid 40s. Highs in the lower
60s. North winds around 15 mph.
.TUESDAY...Cloudy with chance of showers and slight chance of
thunderstorms. Lows in the mid 40s. Highs in the upper 50s.
Northeast winds around 10 mph.
.WEDNESDAY...Mostly cloudy. Showers likely and slight chance of
thunderstorms. Lows in the lower 40s. Highs in the upper 50s.
North winds around 10 mph.
.THURSDAY...Warmer. Mostly clear. Lows in the upper 40s. Highs
around 70.
.FRIDAY...Partly cloudy. Slight chance of showers and
thunderstorms in the afternoon. Highs in the mid 70s.
$$
WYZ282-011045-
South Bighorn Basin/Worland BLM-
Including the cities of Ten Sleep, Thermopolis, and Worland
238 AM MDT Sat May 31 2025
.TODAY...
Sky/weather.........Sunny.
Chance of thunder...0 percent.
Max temperature.....75-80.
24 hr trend......5 degrees warmer.
Min humidity........22-28 percent.
24 hr trend......8 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph. Gusts up to 15 mph.
Ridge top winds.....Southwest around 10 mph until 1200, then
northeast.
Chc of wetting rain.Zero percent.
Transport winds.....West around 10 mph until 1200, then north.
Mixing Height.......800-2800 ft agl until 1200, then 3800-5200 ft
agl.
Smoke dispersal.....Poor.
.TONIGHT...
Sky/weather.........Mostly clear.
Chance of thunder...0 percent.
Min temperature.....53-58.
24 hr trend......4 degrees warmer.
Max humidity........56-62 percent.
24 hr trend......14 percent drier.
Humidity recovery...Moderate.
20-foot winds.......Downslope/downvalley 4-7 mph until 2100, then
southeast around 10 mph until 0300, then
downslope/downvalley 4-7 mph. Gusts up to 20
mph.
Ridge top winds.....Southeast around 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Southeast around 15 mph.
Mixing Height.......1600-3600 ft agl until 2400, then 200-600 ft
agl.
Smoke dispersal.....Poor.
.SUNDAY...
Sky/weather.........Sunny then becoming partly cloudy. Slight
chance of showers and thunderstorms in the
afternoon. Chance of precipitation 20 percent.
Chance of thunder...20 percent.
Max temperature.....81-86.
24 hr trend......6 degrees warmer.
Min humidity........21-27 percent.
24 hr trend......2 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph until 1500, then
northwest around 10 mph. Gusts up to 15 mph.
Ridge top winds.....South around 10 mph until 1200, then northwest.
Chc of wetting rain.Zero percent.
Transport winds.....South around 10 mph until 1200, then west.
Mixing Height.......800-2800 ft agl until 1200, then 6200-8200 ft
agl.
Smoke dispersal.....Poor until 1200, then good.
.Forecast days 3 through 7......
.SUNDAY NIGHT...Mostly cloudy. Chance of showers and slight
chance of thunderstorms in the evening, then slight chance of
showers after midnight. Lows in the lower 50s. Northwest winds
around 10 mph.
.MONDAY...Cooler. Showers likely and slight chance of
thunderstorms. Lows in the mid 40s. Highs in the upper 60s.
Northwest winds around 15 mph.
.TUESDAY...Showers likely and slight chance of thunderstorms.
Lows in the mid 40s. Highs in the upper 50s. North winds around
10 mph.
.WEDNESDAY...Partly cloudy. Chance of showers and slight chance
of thunderstorms. Lows in the mid 40s. Highs in the lower 60s.
Winds generally less than 10 mph.
.THURSDAY...Mostly clear. Slight chance of showers and
thunderstorms. Lows in the upper 40s. Highs in the lower 70s.
.FRIDAY...Partly cloudy. Slight chance of showers and
thunderstorms in the afternoon. Highs in the mid 70s.
$$
WYZ275-011045-
North Bighorn Basin/Worland BLM-
Including the cities of Greybull, Lovell, and Powell
238 AM MDT Sat May 31 2025
.TODAY...
Sky/weather.........Sunny.
Chance of thunder...0 percent.
Max temperature.....75-80.
24 hr trend......7 degrees warmer.
Min humidity........20-26 percent.
24 hr trend......8 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph until 1500, then
southeast around 10 mph. Gusts up to 15 mph.
Ridge top winds.....Southeast around 10 mph.
Chc of wetting rain.Zero percent.
Transport winds.....South around 10 mph.
Mixing Height.......800-2800 ft agl until 1200, then 3600-5200 ft
agl.
Smoke dispersal.....Poor to fair.
.TONIGHT...
Sky/weather.........Mostly clear.
Chance of thunder...0 percent.
Min temperature.....53-58.
24 hr trend......5 degrees warmer.
Max humidity........53-59 percent.
24 hr trend......10 percent drier.
Humidity recovery...Moderate.
20-foot winds.......Southeast winds around 10 mph with gusts to
around 15 mph.
Ridge top winds.....Southeast around 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Southeast around 15 mph.
Mixing Height.......1800-3800 ft agl until 2400, then 400-600 ft
agl.
Smoke dispersal.....Poor.
.SUNDAY...
Sky/weather.........Sunny then becoming partly cloudy. Slight
chance of showers and thunderstorms in the
afternoon. Chance of precipitation 20 percent.
Chance of thunder...20 percent.
Max temperature.....79-84.
24 hr trend......4 degrees warmer.
Min humidity........21-27 percent.
24 hr trend......2 percent wetter.
20-foot winds.......Upslope/upvalley 5-9 mph until 1200, then
southeast around 10 mph with gusts to around 25
mph until 1500, then north with gusts to around
25 mph.
Ridge top winds.....South around 10 mph until 1200, then northeast.
Chc of wetting rain.Less than 5 percent.
Transport winds.....South around 10 mph until 1200, then northwest.
Mixing Height.......600-2600 ft agl until 1200, then 5600-7600 ft
agl.
Smoke dispersal.....Poor until 1200, then good.
.Forecast days 3 through 7......
.SUNDAY NIGHT...Mostly cloudy. Chance of showers and slight
chance of thunderstorms in the evening, then slight chance of
showers after midnight. Lows in the lower 50s. North winds around
15 mph.
.MONDAY...Cooler. Mostly cloudy with chance of showers and slight
chance of thunderstorms. Lows in the mid 40s. Highs in the mid
60s. North winds around 15 mph.
.TUESDAY...Cloudy with showers likely and slight chance of
thunderstorms. Lows in the mid 40s. Highs in the upper 50s. North
winds around 10 mph.
.WEDNESDAY...Partly cloudy. Chance of showers and slight chance
of thunderstorms. Lows in the mid 40s. Highs in the mid 60s.
Winds generally less than 10 mph.
.THURSDAY...Partly cloudy. Slight chance of showers and
thunderstorms. Lows in the upper 40s. Highs in the lower 70s.
.FRIDAY...Mostly cloudy. Slight chance of showers and
thunderstorms in the afternoon. Highs in the mid 70s.
$$
WYZ276-011045-
Cody Foothills-
Including the cities of Clark, Cody, and Meeteetse
238 AM MDT Sat May 31 2025
.TODAY...
Sky/weather.........Sunny.
Chance of thunder...0 percent.
Max temperature.....78-83.
24 hr trend......10 degrees warmer.
Min humidity........25-31 percent.
24 hr trend......7 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph until 1200, then east
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.......1000-3000 ft agl until 1200, then 3800-5000 ft
agl.
Smoke dispersal.....Poor to fair.
.TONIGHT...
Sky/weather.........Mostly clear.
Chance of thunder...0 percent.
Min temperature.....53-58.
24 hr trend......6 degrees warmer.
Max humidity........56-62 percent.
24 hr trend......12 percent drier.
Humidity recovery...Moderate.
20-foot winds.......Southeast winds around 10 mph until 2400, then
southwest. Gusts up to 20 mph.
Ridge top winds.....Southeast around 15 mph until 2400, then
southwest.
Chc of wetting rain.Zero percent.
Transport winds.....South around 15 mph until 2400, then southwest.
Mixing Height.......1800-3800 ft agl until 2400, then 400-800 ft
agl.
Smoke dispersal.....Poor.
.SUNDAY...
Sky/weather.........Mostly sunny then becoming partly cloudy.
Slight chance of thunderstorms early in the
afternoon. Chance of showers in the afternoon.
Chance of thunderstorms late in the afternoon.
Chance of precipitation 50 percent.
Chance of thunder...30 percent.
Max temperature.....81-86.
24 hr trend......3 degrees warmer.
Min humidity........22-28 percent.
24 hr trend......7 percent drier.
20-foot winds.......Southwest winds around 10 mph and gusty until
0900, then upslope/upvalley 5-9 mph until 1200,
then northeast 10 to 15 mph with gusts to
around 25 mph.
Ridge top winds.....West around 15 mph until 1200, then northeast.
Chc of wetting rain.Zero percent until 1200, then 10 percent.
Transport winds.....Northwest around 15 mph.
Mixing Height.......1800-3800 ft agl until 1200, then 4200-6200 ft
agl.
Smoke dispersal.....Fair to good.
.Forecast days 3 through 7......
.SUNDAY NIGHT...Mostly cloudy. Chance of showers and
thunderstorms in the evening, then slight chance of showers after
midnight. Lows in the upper 40s. Northwest winds around 15 mph.
.MONDAY...Much cooler. Mostly cloudy with showers likely and
slight chance of thunderstorms. Lows in the lower 40s. Highs in
the upper 50s. North winds around 15 mph.
.TUESDAY...Cloudy with showers likely and slight chance of
thunderstorms. Lows in the lower 40s. Highs in the lower 50s.
North winds around 10 mph.
.WEDNESDAY...Partly cloudy. Chance of showers and slight chance
of thunderstorms. Lows in the lower 40s. Highs around 60. Winds
generally less than 10 mph.
.THURSDAY...Partly cloudy with slight chance of showers and
thunderstorms. Lows in the upper 40s. Highs in the upper 60s.
.FRIDAY...Mostly cloudy. Chance of showers and slight chance of
thunderstorms in the afternoon. Highs in the lower 70s.
$$
WYZ287-011045-
Owl Creek Mountains-
238 AM MDT Sat May 31 2025
.TODAY...
Sky/weather.........Sunny.
Chance of thunder...0 percent.
Max temperature.....72-77.
24 hr trend......6 degrees warmer.
Min humidity........30-36 percent.
24 hr trend......4 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph until 1500, then east
around 10 mph. Gusts up to 15 mph.
Ridge top winds.....South around 10 mph until 1200, then east.
Chc of wetting rain.Zero percent.
Transport winds.....South 10 to 15 mph.
Mixing Height.......800-2800 ft agl until 1200, then 3200-4800 ft
agl.
Smoke dispersal.....Poor to fair.
.TONIGHT...
Sky/weather.........Mostly clear.
Chance of thunder...0 percent.
Min temperature.....53-58.
24 hr trend......6 degrees warmer.
Max humidity........55-61 percent.
24 hr trend......13 percent drier.
Humidity recovery...Moderate.
20-foot winds.......Southeast winds around 10 mph and gusty until
2100, then south with gusts to around 30 mph.
Ridge top winds.....Southeast around 15 mph until 2400, then
southwest.
Chc of wetting rain.Zero percent.
Transport winds.....South around 15 mph.
Mixing Height.......1400-3400 ft agl until 2400, then 200-600 ft
agl.
Smoke dispersal.....Poor.
.SUNDAY...
Sky/weather.........Mostly sunny then becoming partly cloudy.
Slight chance of thunderstorms early in the
afternoon. Chance of showers in the afternoon.
Chance of thunderstorms late in the afternoon.
Chance of precipitation 40 percent.
Chance of thunder...30 percent.
Max temperature.....77-82.
24 hr trend......5 degrees warmer.
Min humidity........21-27 percent.
24 hr trend......9 percent drier.
20-foot winds.......Southwest winds around 10 mph until 0900, then
upslope/upvalley 5-9 mph until 1500, then west
around 10 mph. Gusts up to 15 mph.
Ridge top winds.....Southwest 10 to 15 mph.
Chc of wetting rain.Zero percent until 1200, then 10 percent.
Transport winds.....West 10 to 15 mph.
Mixing Height.......1400-3400 ft agl until 1200, then 6000-8000 ft
agl.
Smoke dispersal.....Poor until 1200, then good.
.Forecast days 3 through 7......
.SUNDAY NIGHT...Partly cloudy. Chance of showers and slight
chance of thunderstorms in the evening, then slight chance of
showers after midnight. Lows in the lower 50s. Northwest winds
around 10 mph.
.MONDAY...Cooler. Showers likely and slight chance of
thunderstorms. Lows in the lower 40s. Highs around 60. North
winds around 20 mph.
.TUESDAY...Showers and slight chance of thunderstorms. Lows
around 40. Highs in the lower 50s. North winds around 10 mph.
.WEDNESDAY...Partly cloudy. Showers likely and slight chance of
thunderstorms. Lows in the lower 40s. Highs in the mid 50s. North
winds around 10 mph.
.THURSDAY...Partly cloudy. Slight chance of showers and
thunderstorms. Lows in the upper 40s. Highs in the mid 60s.
.FRIDAY...Mostly cloudy. Chance of showers and slight chance of
thunderstorms in the afternoon. Highs in the upper 60s.
$$
WYZ286-011045-
Absaroka Mountains/North Shoshone NF-
Including the city of Pahaska
238 AM MDT Sat May 31 2025
.TODAY...
Sky/weather.........Mostly sunny.
Chance of thunder...0 percent.
Max temperature.....71-76.
24 hr trend......5 degrees warmer.
Min humidity........28-34 percent.
24 hr trend......2 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph until 1200, then south
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.......1200-3200 ft agl until 1200, then 4400-6400 ft
agl.
Smoke dispersal.....Poor to fair.
.TONIGHT...
Sky/weather.........Mostly clear.
Chance of thunder...0 percent.
Min temperature.....47-52.
24 hr trend......6 degrees warmer.
Max humidity........62-68 percent.
24 hr trend......16 percent drier.
Humidity recovery...Good.
20-foot winds.......South winds around 10 mph until 2100, then
downslope/downvalley 4-7 mph until 2400, then
west around 10 mph. Gusts up to 20 mph.
Ridge top winds.....Southwest around 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West around 15 mph.
Mixing Height.......2000-4000 ft agl until 2400, then 400-1000 ft
agl.
Smoke dispersal.....Poor.
.SUNDAY...
Sky/weather.........Mostly sunny then becoming partly cloudy.
Slight chance of thunderstorms early in the
afternoon. Chance of showers in the afternoon.
Chance of thunderstorms late in the afternoon.
Chance of precipitation 50 percent.
Chance of thunder...30 percent.
Max temperature.....71-76.
24 hr trend......1 degree warmer.
Min humidity........25-31 percent.
24 hr trend......3 percent drier.
20-foot winds.......West winds 10 to 15 mph with gusts to around 25
mph.
Ridge top winds.....West around 15 mph.
Chc of wetting rain.Zero percent until 1200, then 10 percent.
Transport winds.....West 15 to 20 mph.
Mixing Height.......2800-4800 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......
.SUNDAY NIGHT...Mostly cloudy. Chance of showers and
thunderstorms in the evening, then slight chance of showers after
midnight. Lows in the mid 40s. West winds around 10 mph.
.MONDAY...Cooler. Mostly cloudy with showers likely with possible
snow showers and thunderstorms. Lows in the mid 30s. Highs in the
mid 50s. North winds around 10 mph.
.TUESDAY...Cooler. Cloudy with showers, snow showers and chance
of thunderstorms. Lows in the mid 30s. Highs in the mid 40s. East
winds around 10 mph.
.WEDNESDAY...Partly cloudy. Chance of showers, snow showers and
slight chance of thunderstorms. Lows in the mid 30s. Highs in the
lower 50s. Winds generally less than 10 mph.
.THURSDAY...Partly cloudy with slight chance of showers and
thunderstorms. Lows in the upper 30s. Highs in the upper 50s.
.FRIDAY...Mostly cloudy. Chance of showers and slight chance of
thunderstorms in the afternoon. Highs around 60.
$$
WYZ140-011045-
Yellowstone National Park-
Including the cities of Lake, Mammoth, and Old Faithful
238 AM MDT Sat May 31 2025
.TODAY...
Sky/weather.........Sunny.
Chance of thunder...0 percent.
Max temperature.....71-76.
24 hr trend......3 degrees warmer.
Min humidity........26-32 percent.
24 hr trend......2 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph until 1200, then west
around 10 mph. Gusts up to 20 mph.
Ridge top winds.....South around 10 mph until 1200, then west.
Chc of wetting rain.Zero percent.
Transport winds.....Southeast around 10 mph until 1200, then west.
Mixing Height.......1000-3000 ft agl until 1200, then 4800-6800 ft
agl.
Smoke dispersal.....Poor until 1200, then good.
.TONIGHT...
Sky/weather.........Mostly clear.
Chance of thunder...0 percent.
Min temperature.....42-47.
24 hr trend......4 degrees warmer.
Max humidity........69-75 percent.
24 hr trend......10 percent drier.
Humidity recovery...Good.
20-foot winds.......Southwest winds around 10 mph until 2100, then
downslope/downvalley 4-7 mph. Gusts up to 20
mph.
Ridge top winds.....South 10 to 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest 10 to 15 mph.
Mixing Height.......2600-4600 ft agl until 2400, then 200-600 ft
agl.
Smoke dispersal.....Fair to good until 2400, then poor.
.SUNDAY...
Sky/weather.........Mostly sunny then becoming partly cloudy.
Slight chance of thunderstorms early in the
afternoon. Chance of showers in the afternoon.
Chance of thunderstorms late in the afternoon.
Chance of precipitation 50 percent.
Chance of thunder...30 percent.
Max temperature.....73-78.
24 hr trend......3 degrees warmer.
Min humidity........27-33 percent.
24 hr trend......1 percent wetter.
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 around 15 mph until 1200, then around
25 mph.
Mixing Height.......1800-3800 ft agl until 1200, then 5000-7000 ft
agl.
Smoke dispersal.....Poor to fair until 1200, then very good.
.Forecast days 3 through 7......
.SUNDAY NIGHT...Mostly cloudy. Showers likely and chance of
thunderstorms in the evening, then chance of showers and slight
chance of thunderstorms after midnight. Lows in the mid 40s.
Winds generally less than 10 mph.
.MONDAY...Cooler. Partly cloudy with chance of showers, snow
showers and slight chance of thunderstorms. Lows in the mid 30s.
Highs in the upper 50s. Winds generally less than 10 mph.
.TUESDAY...Mostly cloudy with showers likely, chance of
thunderstorms and snow showers. Lows in the lower 30s. Highs in
the lower 50s. Winds generally less than 10 mph.
.WEDNESDAY...Partly cloudy with chance of showers, slight chance
of thunderstorms and snow showers. Lows in the mid 30s. Highs in
the mid 50s. Winds generally less than 10 mph.
.THURSDAY...Partly cloudy with slight chance of showers and
thunderstorms. Lows in the upper 30s. Highs around 60.
.FRIDAY...Mostly cloudy. Chance of showers and slight chance of
thunderstorms in the afternoon. Highs in the lower 60s.
$$
WYZ415-011045-
North Zone Bridger Teton NF and Grand Teton NP-
Including the cities of Jackson and Moran
238 AM MDT Sat May 31 2025
.TODAY...
Sky/weather.........Mostly sunny.
Chance of thunder...0 percent.
Max temperature.....69-74.
24 hr trend......2 degrees warmer.
Min humidity........29-35 percent.
24 hr trend......1 percent wetter.
20-foot winds.......Upslope/upvalley 5-9 mph until 1200, then west
around 10 mph. Gusts up to 15 mph.
Ridge top winds.....South around 10 mph until 1200, then west.
Chc of wetting rain.Zero percent.
Transport winds.....South around 10 mph until 1200, then west.
Mixing Height.......1200-3200 ft agl until 1200, then 5000-7000 ft
agl.
Smoke dispersal.....Poor to fair.
.TONIGHT...
Sky/weather.........Mostly clear.
Chance of thunder...0 percent.
Min temperature.....42-47.
24 hr trend......4 degrees warmer.
Max humidity........67-73 percent.
24 hr trend......11 percent drier.
Humidity recovery...Good.
20-foot winds.......Northwest winds around 10 mph until 2100, then
downslope/downvalley 4-7 mph. Gusts up to 15
mph.
Ridge top winds.....West around 10 mph until 2400, then southeast.
Chc of wetting rain.Zero percent.
Transport winds.....West around 10 mph until 2400, then south.
Mixing Height.......2600-4600 ft agl until 2400, then 400-800 ft
agl.
Smoke dispersal.....Poor.
.SUNDAY...
Sky/weather.........Sunny then becoming partly cloudy. Slight
chance of showers and thunderstorms in the
afternoon. Chance of precipitation 20 percent.
Chance of thunder...20 percent.
Max temperature.....74-79.
24 hr trend......3 degrees warmer.
Min humidity........28-34 percent.
24 hr trend......Unchanged.
20-foot winds.......Upslope/upvalley 5-9 mph until 1200, then west
around 10 mph. Gusts up to 20 mph.
Ridge top winds.....South around 10 mph until 1200, then west.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest 10 to 15 mph.
Mixing Height.......2200-4200 ft agl until 1200, then 6600-8600 ft
agl.
Smoke dispersal.....Poor to fair until 1200, then very good.
.Forecast days 3 through 7......
.SUNDAY NIGHT...Mostly cloudy. Chance of showers and slight
chance of thunderstorms in the evening, then chance of showers
after midnight. Lows in the mid 40s. Winds generally less than
10 mph.
.MONDAY...Cooler. Partly cloudy with chance of showers, snow
showers and slight chance of thunderstorms. Lows in the upper
30s. Highs in the lower 60s. Winds generally less than 10 mph.
.TUESDAY...Partly cloudy. Showers likely, chance of thunderstorms
and snow showers. Lows in the mid 30s. Highs in the mid 50s.
Winds generally less than 10 mph.
.WEDNESDAY...Partly cloudy with chance of showers, thunderstorms
and slight chance of snow showers. Lows in the mid 30s. Highs in
the mid 50s. Winds generally less than 10 mph.
.THURSDAY...Partly cloudy with slight chance of showers and
thunderstorms. Lows in the upper 30s. Highs around 60.
.FRIDAY...Partly cloudy. Chance of showers and slight chance of
thunderstorms in the afternoon. Highs in the lower 60s.
$$
WYZ416-011045-
West Wind River Mountains/East Zone Bridger Teton NF-
238 AM MDT Sat May 31 2025
.TODAY...
Sky/weather.........Mostly sunny.
Chance of thunder...0 percent.
Max temperature.....65-70.
24 hr trend......Unchanged.
Min humidity........31-37 percent.
24 hr trend......5 percent wetter.
20-foot winds.......Upslope/upvalley 5-9 mph until 0900, then west
around 10 mph. Gusts up to 20 mph.
Ridge top winds.....West 10 to 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West 10 to 15 mph.
Mixing Height.......1200-3200 ft agl until 1200, then 5000-7000 ft
agl.
Smoke dispersal.....Poor to fair.
.TONIGHT...
Sky/weather.........Mostly clear.
Chance of thunder...0 percent.
Min temperature.....44-49.
24 hr trend......4 degrees warmer.
Max humidity........61-67 percent.
24 hr trend......16 percent drier.
Humidity recovery...Good.
20-foot winds.......West winds around 10 mph until 2100, then north
until 2400, then downslope/downvalley 4-7 mph.
Gusts up to 15 mph.
Ridge top winds.....Northwest around 15 mph until 2400, then
northeast.
Chc of wetting rain.Zero percent.
Transport winds.....West 10 to 15 mph.
Mixing Height.......2800-4800 ft agl until 2400, then 200-800 ft
agl.
Smoke dispersal.....Poor to fair until 2400, then poor.
.SUNDAY...
Sky/weather.........Sunny then becoming partly cloudy. Slight
chance of showers and thunderstorms in the
afternoon. Chance of precipitation 20 percent.
Chance of thunder...20 percent.
Max temperature.....69-74.
24 hr trend......4 degrees warmer.
Min humidity........28-34 percent.
24 hr trend......4 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph until 1200, then west
around 10 mph. Gusts up to 15 mph.
Ridge top winds.....West 10 to 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West 10 to 15 mph.
Mixing Height.......2400-4400 ft agl until 1200, then 7000-9000 ft
agl.
Smoke dispersal.....Poor to fair until 1200, then good to very
good.
.Forecast days 3 through 7......
.SUNDAY NIGHT...Mostly cloudy. Chance of showers and slight
chance of thunderstorms in the evening, then slight chance of
showers after midnight. Lows in the mid 40s. Winds generally less
than 10 mph.
.MONDAY...Cooler. Partly cloudy. Chance of showers, snow showers
and slight chance of thunderstorms. Lows in the mid 30s. Highs in
the lower 60s. Northwest winds around 10 mph.
.TUESDAY...Cooler. Mostly cloudy with showers likely, chance of
thunderstorms and snow showers. Lows in the lower 30s. Highs in
the lower 50s. Southwest winds around 10 mph.
.WEDNESDAY...Partly cloudy. Chance of showers, thunderstorms and
snow showers. Lows in the lower 30s. Highs in the lower 50s.
Winds generally less than 10 mph.
.THURSDAY...Partly cloudy with slight chance of showers and
thunderstorms. Lows in the mid 30s. Highs in the upper 50s.
.FRIDAY...Partly cloudy. Chance of showers and slight chance of
thunderstorms in the afternoon. Highs around 60.
$$
WYZ288-011045-
East Wind River Mountains/South Shoshone NF-
Including the cities of Dubois and South Pass
238 AM MDT Sat May 31 2025
.TODAY...
Sky/weather.........Mostly sunny.
Chance of thunder...0 percent.
Max temperature.....70-75.
24 hr trend......2 degrees warmer.
Min humidity........32-38 percent.
24 hr trend......7 percent wetter.
20-foot winds.......Upslope/upvalley 5-9 mph until 1200, then
northeast around 10 mph. Gusts up to 20 mph.
Ridge top winds.....Northeast 10 to 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Northwest 10 to 15 mph.
Mixing Height.......1000-3000 ft agl until 1200, then 4200-6200 ft
agl.
Smoke dispersal.....Poor to fair.
.TONIGHT...
Sky/weather.........Mostly clear.
Chance of thunder...0 percent.
Min temperature.....46-51.
24 hr trend......5 degrees warmer.
Max humidity........61-67 percent.
24 hr trend......20 percent drier.
Humidity recovery...Good.
20-foot winds.......Northeast winds around 10 mph until 2100, then
downslope/downvalley 4-7 mph until 2400, 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 2400, then 200-800 ft
agl.
Smoke dispersal.....Poor.
.SUNDAY...
Sky/weather.........Sunny then becoming 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.....71-76.
24 hr trend......3 degrees warmer.
Min humidity........27-33 percent.
24 hr trend......10 percent drier.
20-foot winds.......West winds around 10 mph with higher gusts.
Ridge top winds.....West 10 to 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West around 15 mph.
Mixing Height.......2200-4200 ft agl until 1200, then 7600-9600 ft
agl.
Smoke dispersal.....Poor to fair until 1200, then good to very
good.
.Forecast days 3 through 7......
.SUNDAY NIGHT...Mostly cloudy. Chance of showers and slight
chance of thunderstorms in the evening, then slight chance of
showers after midnight. Lows in the upper 40s. Winds generally
less than 10 mph.
.MONDAY...Cooler. Mostly cloudy with showers likely, chance of
thunderstorms and snow showers. Lows in the upper 30s. Highs in
the lower 60s. North winds around 10 mph.
.TUESDAY...Cooler. Cloudy with showers with possible
thunderstorms and snow showers. Lows in the mid 30s. Highs in the
lower 50s. East winds around 10 mph.
.WEDNESDAY...Partly cloudy. Showers likely with possible snow
showers and thunderstorms. Lows in the mid 30s. Highs in the
lower 50s. Winds generally less than 10 mph.
.THURSDAY...Partly cloudy with slight chance of showers and
thunderstorms. Lows in the lower 40s. Highs around 60.
.FRIDAY...Partly cloudy. Chance of showers and slight chance of
thunderstorms in the afternoon. Highs in the lower 60s.
$$
WYZ414-011045-
Salt and Wyoming Ranges/West Zone Bridger Teton NF-
Including the city of Afton
238 AM MDT Sat May 31 2025
.TODAY...
Sky/weather.........Mostly sunny.
Chance of thunder...0 percent.
Max temperature.....69-74.
24 hr trend......3 degrees warmer.
Min humidity........28-34 percent.
24 hr trend......2 percent wetter.
20-foot winds.......Upslope/upvalley 5-9 mph until 1500, then
northwest around 10 mph. Gusts up to 15 mph.
Ridge top winds.....Southeast around 10 mph until 1200, then
northwest.
Chc of wetting rain.Zero percent.
Transport winds.....South around 10 mph until 1200, then northwest.
Mixing Height.......1400-3400 ft agl until 1200, then 5200-7200 ft
agl.
Smoke dispersal.....Poor to fair.
.TONIGHT...
Sky/weather.........Mostly clear.
Chance of thunder...0 percent.
Min temperature.....45-50.
24 hr trend......3 degrees warmer.
Max humidity........65-71 percent.
24 hr trend......11 percent drier.
Humidity recovery...Good.
20-foot winds.......Northwest winds around 10 mph until 2100, then
downslope/downvalley 4-7 mph. Gusts up to 15
mph.
Ridge top winds.....Northwest around 10 mph until 2400, then south.
Chc of wetting rain.Zero percent.
Transport winds.....Northwest around 10 mph until 2400, then
southwest.
Mixing Height.......2800-4800 ft agl until 2400, then 200-800 ft
agl.
Smoke dispersal.....Poor.
.SUNDAY...
Sky/weather.........Mostly sunny. Slight chance of showers and
thunderstorms in the afternoon. Chance of
precipitation 20 percent.
Chance of thunder...20 percent.
Max temperature.....73-78.
24 hr trend......4 degrees warmer.
Min humidity........25-31 percent.
24 hr trend......5 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph until 1200, then west
around 10 mph. Gusts up to 20 mph.
Ridge top winds.....Southwest 10 to 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West 10 to 15 mph.
Mixing Height.......2400-4400 ft agl until 1200, then 6800-8800 ft
agl.
Smoke dispersal.....Poor to fair until 1200, then good to very
good.
.Forecast days 3 through 7......
.SUNDAY NIGHT...Mostly cloudy. Slight chance of showers and
thunderstorms in the evening, then chance of showers after
midnight. Lows in the upper 40s. Winds generally less than
10 mph.
.MONDAY...Cooler. Partly cloudy with chance of showers and slight
chance of thunderstorms. Lows in the upper 30s. Highs in the mid
60s. West winds around 10 mph.
.TUESDAY...Partly cloudy with chance of showers, slight chance of
thunderstorms and snow showers. Lows in the mid 30s. Highs in the
upper 50s. West winds around 10 mph.
.WEDNESDAY...Partly cloudy with chance of showers, thunderstorms
and slight chance of snow showers. Lows in the mid 30s. Highs in
the upper 50s. Winds generally less than 10 mph.
.THURSDAY...Partly cloudy. Lows around 40. Highs in the lower
60s.
.FRIDAY...Partly cloudy. Slight chance of showers and
thunderstorms in the afternoon. Highs in the mid 60s.
$$
WYZ278-011045-
Upper Green River Basin/Rock Springs BLM-
Including the cities of Big Piney, Farson, and Pinedale
238 AM MDT Sat May 31 2025
.TODAY...
Sky/weather.........Mostly sunny.
Chance of thunder...0 percent.
Max temperature.....72-77.
24 hr trend......1 degree warmer.
Min humidity........22-28 percent.
24 hr trend......3 percent wetter.
20-foot winds.......Upslope/upvalley 5-9 mph until 1500, then
northwest around 10 mph. Gusts up to 15 mph.
Ridge top winds.....Southeast around 10 mph until 1200, then west.
Chc of wetting rain.Zero percent.
Transport winds.....East around 10 mph until 1200, then west.
Mixing Height.......1400-3400 ft agl until 1200, then 5600-7600 ft
agl.
Smoke dispersal.....Poor to fair.
.TONIGHT...
Sky/weather.........Mostly clear.
Chance of thunder...0 percent.
Min temperature.....45-50.
24 hr trend......2 degrees warmer.
Max humidity........63-69 percent.
24 hr trend......10 percent drier.
Humidity recovery...Good.
20-foot winds.......Northwest winds around 10 mph until 0300, then
downslope/downvalley 4-7 mph. Gusts up to 15
mph.
Ridge top winds.....North 10 to 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....North 10 to 15 mph.
Mixing Height.......3400-5400 ft agl until 2400, then 200-600 ft
agl.
Smoke dispersal.....Poor to fair until 2400, then poor.
.SUNDAY...
Sky/weather.........Mostly sunny then becoming partly cloudy.
Chance of thunder...0 percent.
Max temperature.....77-82.
24 hr trend......5 degrees warmer.
Min humidity........19-25 percent.
24 hr trend......4 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph until 1200, then west
around 10 mph with higher gusts.
Ridge top winds.....West 10 to 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Northwest 10 to 15 mph.
Mixing Height.......2000-4000 ft agl until 1200, then 8800-10800 ft
agl.
Smoke dispersal.....Poor until 1200, then very good.
.Forecast days 3 through 7......
.SUNDAY NIGHT...Mostly cloudy with slight chance of showers. Lows
in the upper 40s. Winds generally less than 10 mph.
.MONDAY...Partly cloudy. Chance of showers and slight chance of
thunderstorms. Lows around 40. Highs in the lower 70s. Northwest
winds around 10 mph.
.TUESDAY THROUGH WEDNESDAY...Partly cloudy with chance of showers
and slight chance of thunderstorms. Lows in the upper 30s. Highs
62 to 67. Northwest winds around 10 mph.
.THURSDAY...Partly cloudy. Lows in the lower 40s. Highs in the
upper 60s.
.FRIDAY...Partly cloudy. Slight chance of showers and
thunderstorms in the afternoon. Highs in the lower 70s.
$$
WYZ277-011045-
Lincoln and Uinta Counties/Lower Elevations-
Including the cities of Evanston, Fort Bridger, and Kemmerer
238 AM MDT Sat May 31 2025
.TODAY...
Sky/weather.........Mostly sunny.
Chance of thunder...0 percent.
Max temperature.....72-77.
24 hr trend......1 degree warmer.
Min humidity........20-26 percent.
24 hr trend......1 percent drier.
20-foot winds.......Northeast winds around 10 mph until 0900, then
upslope/upvalley 5-9 mph until 1500, then
northwest around 10 mph. Gusts up to 15 mph.
Ridge top winds.....East around 10 mph until 1200, then northwest.
Chc of wetting rain.Zero percent.
Transport winds.....East around 15 mph until 1200, then northwest.
Mixing Height.......1000-3000 ft agl until 1200, then 4800-6800 ft
agl.
Smoke dispersal.....Poor to fair.
.TONIGHT...
Sky/weather.........Mostly clear.
Chance of thunder...0 percent.
Min temperature.....47-52.
24 hr trend......3 degrees warmer.
Max humidity........61-67 percent.
24 hr trend......9 percent drier.
Humidity recovery...Good.
20-foot winds.......Northwest winds around 10 mph until 2400, then
downslope/downvalley 4-7 mph. Gusts up to 15
mph.
Ridge top winds.....Northwest 10 to 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Northwest 10 to 15 mph.
Mixing Height.......2800-4800 ft agl until 2400, then 200-400 ft
agl.
Smoke dispersal.....Poor to fair until 2400, then poor.
.SUNDAY...
Sky/weather.........Mostly sunny then becoming partly cloudy.
Chance of thunder...0 percent.
Max temperature.....77-82.
24 hr trend......5 degrees warmer.
Min humidity........18-24 percent.
24 hr trend......4 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph until 1500, then west
around 10 mph. Gusts up to 15 mph.
Ridge top winds.....West around 10 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West 5 to 10 mph.
Mixing Height.......1800-3800 ft agl until 1200, then 8000-10000 ft
agl.
Smoke dispersal.....Poor until 1200, then good to very good.
.Forecast days 3 through 7......
.SUNDAY NIGHT...Mostly cloudy with slight chance of showers. Lows
in the lower 50s. Winds generally less than 10 mph.
.MONDAY...Partly cloudy. Chance of showers and slight chance of
thunderstorms. Lows around 40. Highs in the lower 70s. Northwest
winds around 10 mph.
.TUESDAY...Partly cloudy with slight chance of showers. Lows in
the upper 30s. Highs in the mid 60s. West winds around 10 mph.
.WEDNESDAY...Mostly clear. Slight chance of showers and
thunderstorms. Lows in the upper 30s. Highs in the mid 60s. Winds
generally less than 10 mph.
.THURSDAY...Partly cloudy. Lows in the lower 40s. Highs in the
upper 60s.
.FRIDAY...Partly cloudy. Slight chance of showers and
thunderstorms in the afternoon. Highs in the lower 70s.
$$
WYZ279-011045-
Sweetwater County/Rock Springs BLM/Flaming Gorge NRA-
Including the cities of Green River, Rock Springs, and Wamsutter
238 AM MDT Sat May 31 2025
.TODAY...
Sky/weather.........Mostly sunny.
Chance of thunder...0 percent.
Max temperature.....74-79.
24 hr trend......1 degree cooler.
Min humidity........18-24 percent.
24 hr trend......3 percent wetter.
20-foot winds.......Northeast winds around 10 mph until 1200, then
upslope/upvalley 5-9 mph until 1500, then north
around 10 mph. Gusts up to 20 mph.
Ridge top winds.....Northeast around 15 mph until 1200, then north.
Chc of wetting rain.Zero percent.
Transport winds.....Northeast around 15 mph until 1200, then
northwest.
Mixing Height.......1400-3400 ft agl until 1200, then 6000-8000 ft
agl.
Smoke dispersal.....Poor to fair.
.TONIGHT...
Sky/weather.........Mostly clear.
Chance of thunder...0 percent.
Min temperature.....49-54.
24 hr trend......2 degrees warmer.
Max humidity........57-63 percent.
24 hr trend......16 percent drier.
Humidity recovery...Good.
20-foot winds.......North winds around 10 mph until 2100, then east
until 2400, then southeast until 0300, then
downslope/downvalley 4-7 mph. Gusts up to 15
mph.
Ridge top winds.....Northeast around 15 mph until 2400, then south.
Chc of wetting rain.Zero percent.
Transport winds.....North around 15 mph until 2400, then south.
Mixing Height.......3800-5800 ft agl until 2400, then 200-600 ft
agl.
Smoke dispersal.....Fair to good until 2400, then poor.
.SUNDAY...
Sky/weather.........Mostly sunny then becoming partly cloudy.
Chance of thunder...0 percent.
Max temperature.....80-85.
24 hr trend......6 degrees warmer.
Min humidity........16-22 percent.
24 hr trend......5 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph until 1200, then west
around 10 mph. Gusts up to 20 mph.
Ridge top winds.....Southwest 10 to 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West 10 to 15 mph.
Mixing Height.......2200-4200 ft agl until 1200, then 9200-11200 ft
agl.
Smoke dispersal.....Poor to fair until 1200, then very good.
.Forecast days 3 through 7......
.SUNDAY NIGHT...Mostly cloudy. Lows in the lower 50s. Winds
generally less than 10 mph.
.MONDAY...Mostly cloudy with chance of showers and thunderstorms.
Lows in the lower 40s. Highs in the mid 70s. Northwest winds
around 10 mph.
.TUESDAY THROUGH WEDNESDAY...Partly cloudy with chance of showers
and slight chance of thunderstorms. Lows in the lower 40s. Highs
64 to 69. North winds around 10 mph.
.THURSDAY...Mostly clear. Slight chance of showers and
thunderstorms. Lows in the mid 40s. Highs around 70.
.FRIDAY...Partly cloudy. Slight chance of showers and
thunderstorms in the afternoon. Highs in the mid 70s.
$$
WYZ289-011045-
Granite/Green/Ferris/Rattlesnake Mountains-
Including the city of Jeffrey City
238 AM MDT Sat May 31 2025
.TODAY...
Sky/weather.........Sunny.
Chance of thunder...0 percent.
Max temperature.....73-78.
24 hr trend......2 degrees warmer.
Min humidity........21-27 percent.
24 hr trend......1 percent wetter.
20-foot winds.......Upslope/upvalley 5-9 mph until 1200. Winds
north around 10 mph after 1500. Gusts up to 15
mph.
Ridge top winds.....North around 10 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Northeast around 10 mph until 1200, then
northwest.
Mixing Height.......1000-3000 ft agl until 1200, then 4600-6600 ft
agl.
Smoke dispersal.....Poor to fair.
.TONIGHT...
Sky/weather.........Mostly clear.
Chance of thunder...0 percent.
Min temperature.....51-56.
24 hr trend......4 degrees warmer.
Max humidity........58-64 percent.
24 hr trend......19 percent drier.
Humidity recovery...Good.
20-foot winds.......Northeast winds around 10 mph until 2100, then
southeast until 0300, then downslope/downvalley
4-7 mph. Gusts up to 20 mph.
Ridge top winds.....Northeast around 15 mph until 2400, then
southeast.
Chc of wetting rain.Zero percent.
Transport winds.....Northeast around 15 mph until 2400, then south.
Mixing Height.......2800-4800 ft agl until 2400, then 200-600 ft
agl.
Smoke dispersal.....Poor.
.SUNDAY...
Sky/weather.........Mostly sunny.
Chance of thunder...0 percent.
Max temperature.....81-86.
24 hr trend......6 degrees warmer.
Min humidity........14-20 percent.
24 hr trend......8 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph until 0900, then west
around 10 mph. Gusts up to 15 mph.
Ridge top winds.....Southwest 10 to 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West 10 to 15 mph.
Mixing Height.......2000-4000 ft agl until 1200, then 8200-10200 ft
agl.
Smoke dispersal.....Poor to fair until 1200, then very good.
.Forecast days 3 through 7......
.SUNDAY NIGHT...Partly cloudy. Slight chance of showers in the
evening. Lows around 50. North winds around 10 mph.
.MONDAY...Not as warm. Mostly cloudy with showers and chance of
thunderstorms. Lows in the lower 40s. Highs around 70. Northeast
winds around 15 mph.
.TUESDAY...Cooler. Mostly cloudy with showers likely and slight
chance of thunderstorms. Lows in the lower 40s. Highs around 60.
Northeast winds around 10 mph.
.WEDNESDAY...Partly cloudy. Chance of showers and slight chance
of thunderstorms. Lows around 40. Highs in the upper 50s. North
winds around 10 mph.
.THURSDAY...Mostly clear. Slight chance of showers. Lows in the
mid 40s. Highs in the upper 60s.
.FRIDAY...Partly cloudy. Slight chance of showers and
thunderstorms in the afternoon. Highs in the lower 70s.
$$
WYZ300-011045-
Casper Mountain-
238 AM MDT Sat May 31 2025
.TODAY...
Sky/weather.........Mostly sunny.
Chance of thunder...0 percent.
Max temperature.....70-75.
24 hr trend......3 degrees warmer.
Min humidity........23-29 percent.
24 hr trend......13 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph until 0900, then north
around 10 mph. Gusts up to 20 mph.
Ridge top winds.....North 10 to 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....North 10 to 15 mph.
Mixing Height.......800-2800 ft agl until 1200, then 3800-5400 ft
agl.
Smoke dispersal.....Poor to fair.
.TONIGHT...
Sky/weather.........Clear.
Chance of thunder...0 percent.
Min temperature.....48-53.
24 hr trend......4 degrees warmer.
Max humidity........64-70 percent.
24 hr trend......17 percent drier.
Humidity recovery...Good.
20-foot winds.......Northeast winds around 10 mph until 2100, then
southeast. Gusts up to 30 mph.
Ridge top winds.....East around 15 mph until 2400, then southeast.
Chc of wetting rain.Zero percent.
Transport winds.....East around 15 mph until 2400, then south.
Mixing Height.......1200-3200 ft agl until 2400, then 200-600 ft
agl.
Smoke dispersal.....Poor.
.SUNDAY...
Sky/weather.........Mostly sunny.
Chance of thunder...0 percent.
Max temperature.....80-85.
24 hr trend......9 degrees warmer.
Min humidity........20-26 percent.
24 hr trend......5 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph until 0900, then west
around 10 mph. Gusts up to 15 mph.
Ridge top winds.....Southwest 10 to 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West around 15 mph.
Mixing Height.......1400-3400 ft agl until 1200, then 6000-8000 ft
agl.
Smoke dispersal.....Poor until 1200, then good.
.Forecast days 3 through 7......
.SUNDAY NIGHT...Partly cloudy. Slight chance of showers and
thunderstorms in the evening. Lows in the upper 40s. Winds
generally less than 10 mph.
.MONDAY...Cooler. Showers and chance of thunderstorms. Lows
around 40. Highs in the mid 60s. North winds around 10 mph.
.TUESDAY...Cooler. Mostly cloudy with showers likely and slight
chance of thunderstorms. Lows in the lower 40s. Highs in the
lower 50s. East winds around 10 mph.
.WEDNESDAY...Mostly cloudy. Showers likely and slight chance of
thunderstorms. Lows in the upper 30s. Highs in the mid 50s. Winds
generally less than 10 mph.
.THURSDAY...Partly cloudy with slight chance of showers and
thunderstorms. Lows in the mid 40s. Highs in the mid 60s.
.FRIDAY...Partly cloudy. Chance of showers and slight chance of
thunderstorms in the afternoon. Highs in the upper 60s.
$$