Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS Riverton, WY
Issued by NWS Riverton, WY
839
FNUS55 KRIW 220827
FWFRIW
Fire Weather Planning Forecast for Western and Central Wyoming
National Weather Service Riverton WY
227 AM MDT Thu May 22 2025
.DISCUSSION...
...Yellowstone NP and Teton dispatch areas (includes fire weather
zones 140...414...415...and 416)...
Another day of isolated afternoon/evening showers and thunderstorms
mainly across northern WY. Chances for wetting rains are rather low
with nearly all of the dispatch area seeing less than a 20% chance.
One concern this afternoon and evening will be strong gusty winds as
a result of any showers or thunderstorms that develop.
...Cody dispatch area (includes fire weather zones 275...276...
282...283...285...286...287...288...and 289)...
Showers and thunderstorms are expected to develop once again this
afternoon/evening. Overall, the coverage will be rather isolated
with most locations remaining dry. As a result chances for wetting
rains will be low with much of the dispatch area having less than a
10% chance. Gusty outflow winds may be a concern today with any
developing showers or thunderstorms. Zones 289, 283, 270, 282, and
275 will have the best chances of seeing these outflow winds.
...Casper dispatch area (includes fire weather zones 277...278...
279...280...281...285...289...and 300)...
Showers and thunderstorms are expected to develop once again this
afternoon/evening. Overall, the coverage will be rather isolated
with most locations remaining dry. As a result chances for wetting
rains will be low with much of the dispatch area having less than a
10% chance. Gusty outflow winds may be a concern today with any
developing showers or thunderstorms. Zones 289, 280, 300, and 281
will have the best chances of seeing these outflow winds. Southern
WY will see gusty winds at times today with periodic gusts of 25 to
35 mph. Along with low RH values of 15-20% there may be some near
elevated fire weather conditions mainly across zones, 279 and 289.
...Thunderstorms imply strong gusty and erratic winds...
WYZ280-231030-
Natrona County/Casper BLM-
Including the cities of Casper and Midwest
227 AM MDT Thu May 22 2025
.TODAY...
Sky/weather.........Mostly sunny then becoming partly cloudy.
Slight chance of showers late in the afternoon.
Chance of showers 20 percent.
Chance of thunder...0 percent.
Max temperature.....68-73.
24 hr trend......11 degrees warmer.
Min humidity........21-27 percent.
24 hr trend......7 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph until 0900, then
southeast 10 to 15 mph with gusts to around 25
mph.
Ridge top winds.....Southeast 10 to 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Southeast around 10 mph until 1200, then south
around 20 mph.
Mixing Height.......1400-3400 ft agl until 1200, then 6200-8200 ft
agl.
Smoke dispersal.....Poor until 1200, then good to very good.
.TONIGHT...
Sky/weather.........Partly cloudy. Slight chance of showers and
thunderstorms early in the evening. Chance of
precipitation 20 percent.
Chance of thunder...20 percent.
Min temperature.....41-46.
24 hr trend......8 degrees warmer.
Max humidity........71-77 percent.
24 hr trend......7 percent drier.
Humidity recovery...Excellent.
20-foot winds.......Southeast winds 10 to 15 mph until 2400, then
south until 0300, then downslope/downvalley 4-7
mph. Gusts up to 30 mph.
Ridge top winds.....Southeast around 20 mph until 2400, then
southwest.
Chc of wetting rain.Zero percent.
Transport winds.....Southeast around 20 mph until 2400, then
southwest.
Mixing Height.......2000-4000 ft agl until 2400, then 400-600 ft
agl.
Smoke dispersal.....Fair to good until 2400, then poor.
.FRIDAY...
Sky/weather.........Mostly sunny. Slight chance of showers and
thunderstorms late in the afternoon. Chance of
precipitation 20 percent.
Chance of thunder...10 percent.
Max temperature.....67-72.
24 hr trend......Unchanged.
Min humidity........23-29 percent.
24 hr trend......1 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph until 0900, then
northwest 10 to 15 mph with gusts to around 25
mph.
Ridge top winds.....Northwest 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 6800-8800 ft
agl.
Smoke dispersal.....Poor to fair until 1200, then very good to
excellent.
.Forecast days 3 through 7......
.FRIDAY NIGHT...Mostly cloudy. Slight chance of showers and
thunderstorms in the evening, then chance of showers after
midnight. Lows in the upper 40s. Northeast winds around 10 mph.
.SATURDAY...Cloudy with showers and chance of thunderstorms. Lows
in the mid 40s. Highs in the lower 60s. Northeast winds around
10 mph.
.SUNDAY...Partly cloudy. Showers likely and chance of
thunderstorms. Lows in the lower 40s. Highs in the lower 60s.
Northeast winds around 10 mph.
.MEMORIAL DAY...Mostly clear. Slight chance of showers and
thunderstorms. Lows in the mid 40s. Highs in the upper 60s. Winds
generally less than 10 mph.
.TUESDAY THROUGH WEDNESDAY...Partly cloudy with chance of showers
and slight chance of thunderstorms. Lows in the mid 40s. Highs in
the mid 70s.
$$
WYZ283-231030-
Upper Wind River Basin/Wind River Basin-
Including the cities of Crowheart, Lander, Riverton, and Shoshoni
227 AM MDT Thu May 22 2025
.TODAY...
Sky/weather.........Partly cloudy.
Chance of thunder...0 percent.
Max temperature.....64-69.
24 hr trend......8 degrees warmer.
Min humidity........23-29 percent.
24 hr trend......1 percent wetter.
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.....Southeast around 10 mph until 1200, then south
around 20 mph.
Mixing Height.......1200-3200 ft agl until 1200, then 6400-8400 ft
agl.
Smoke dispersal.....Poor until 1200, then very good.
.TONIGHT...
Sky/weather.........Partly cloudy. Slight chance of showers early
in the evening. Chance of showers 20 percent.
Chance of thunder...0 percent.
Min temperature.....38-43.
24 hr trend......6 degrees warmer.
Max humidity........58-64 percent.
24 hr trend......7 percent drier.
Humidity recovery...Good.
20-foot winds.......Southwest winds around 10 mph. Gusts up to 25
mph until 2400, then 15 mph.
Ridge top winds.....Southwest 10 to 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West around 15 mph.
Mixing Height.......2800-4800 ft agl until 2400, then 400-800 ft
agl.
Smoke dispersal.....Fair to good until 2400, then poor.
.FRIDAY...
Sky/weather.........Mostly sunny.
Chance of thunder...0 percent.
Max temperature.....65-70.
24 hr trend......1 degree warmer.
Min humidity........22-28 percent.
24 hr trend......2 percent drier.
20-foot winds.......West winds around 10 mph until 0900, then
upslope/upvalley 5-9 mph until 1200, then
northwest around 10 mph. Gusts up to 20 mph.
Ridge top winds.....Northwest 10 to 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West 10 to 15 mph.
Mixing Height.......1600-3600 ft agl until 1200, then 6800-8800 ft
agl.
Smoke dispersal.....Poor to fair until 1200, then very good.
.Forecast days 3 through 7......
.FRIDAY NIGHT...Mostly cloudy. Slight chance of showers after
midnight. Lows in the mid 40s. North winds around 10 mph.
.SATURDAY...Mostly cloudy with showers likely and chance of
thunderstorms. Lows in the mid 40s. Highs in the mid 60s. Winds
generally less than 10 mph.
.SUNDAY...Partly cloudy with chance of showers and slight chance
of thunderstorms. Lows in the lower 40s. Highs in the mid 60s.
Winds generally less than 10 mph.
.MEMORIAL DAY...Mostly clear. Slight chance of showers and
thunderstorms. Lows in the mid 40s. Highs in the lower 70s. Winds
generally less than 10 mph.
.TUESDAY...Partly cloudy. Chance of showers and slight chance of
thunderstorms. Lows in the upper 40s. Highs in the mid 70s.
.WEDNESDAY...Partly cloudy. Slight chance of showers and
thunderstorms in the afternoon. Highs in the mid 70s.
$$
WYZ285-231030-
South Bighorn Mountains-
227 AM MDT Thu May 22 2025
.TODAY...
Sky/weather.........Partly cloudy. Slight chance of showers late in
the afternoon. Chance of showers 20 percent.
Chance of thunder...0 percent.
Max temperature.....59-64.
24 hr trend......10 degrees warmer.
Min humidity........30-36 percent.
24 hr trend......10 percent drier.
20-foot winds.......South winds 10 to 15 mph with gusts to around
25 mph.
Ridge top winds.....South 15 to 20 mph.
Chc of wetting rain.Zero percent.
Transport winds.....South 15 to 20 mph.
Mixing Height.......1000-3000 ft agl until 1200, then 4200-6200 ft
agl.
Smoke dispersal.....Poor until 1200, then good.
.TONIGHT...
Sky/weather.........Partly cloudy. Slight chance of thunderstorms
early in the evening. Slight chance of showers
early in the evening. Chance of precipitation
20 percent.
Chance of thunder...20 percent.
Min temperature.....38-43.
24 hr trend......7 degrees warmer.
Max humidity........62-68 percent.
24 hr trend......10 percent drier.
Humidity recovery...Good.
20-foot winds.......Southeast winds around 15 mph until 2400, then
southwest. Gusts up to 25 mph.
Ridge top winds.....Southeast around 20 mph until 2400, then
southwest.
Chc of wetting rain.Zero percent.
Transport winds.....Southeast around 20 mph until 2400, then west.
Mixing Height.......1000-3000 ft agl until 2400, then 200-600 ft
agl.
Smoke dispersal.....Poor.
.FRIDAY...
Sky/weather.........Mostly sunny. Slight chance of showers and
thunderstorms late in the afternoon. Chance of
precipitation 20 percent.
Chance of thunder...20 percent.
Max temperature.....60-65.
24 hr trend......Unchanged.
Min humidity........32-38 percent.
24 hr trend......Unchanged.
20-foot winds.......Northwest winds around 10 mph with higher
gusts.
Ridge top winds.....Northwest around 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West around 15 mph.
Mixing Height.......1200-3200 ft agl until 1200, then 4800-6800 ft
agl.
Smoke dispersal.....Fair to good.
.Forecast days 3 through 7......
.FRIDAY NIGHT...Mostly cloudy. Slight chance of showers and
thunderstorms in the evening, then chance of showers after
midnight. Lows in the lower 40s. Northeast winds around 10 mph.
.SATURDAY...Showers and chance of thunderstorms. Lows in the
lower 40s. Highs in the upper 50s. Northeast winds around 10 mph.
.SUNDAY...Partly cloudy with showers likely and chance of
thunderstorms. Lows in the lower 40s. Highs in the mid 50s.
Northeast winds around 10 mph.
.MEMORIAL DAY...Mostly clear. Slight chance of showers and
thunderstorms. Lows in the mid 40s. Highs in the lower 60s.
Southeast winds around 10 mph.
.TUESDAY...Partly cloudy. Chance of showers and thunderstorms.
Lows in the mid 40s. Highs in the upper 60s.
.WEDNESDAY...Partly cloudy. Chance of showers and slight chance
of thunderstorms in the afternoon. Highs in the upper 60s.
$$
WYZ281-231030-
Johnson County/Casper BLM-
Including the cities of Buffalo and Kaycee
227 AM MDT Thu May 22 2025
.TODAY...
Sky/weather.........Mostly sunny then becoming partly cloudy.
Chance of thunder...0 percent.
Max temperature.....61-66.
24 hr trend......11 degrees warmer.
Min humidity........31-37 percent.
24 hr trend......10 percent drier.
20-foot winds.......South winds 10 to 15 mph with gusts to around
30 mph.
Ridge top winds.....South 15 to 20 mph.
Chc of wetting rain.Zero percent.
Transport winds.....South 15 to 20 mph.
Mixing Height.......1600-3600 ft agl until 1200, then 5800-7800 ft
agl.
Smoke dispersal.....Poor to fair until 1200, then very good.
.TONIGHT...
Sky/weather.........Partly cloudy. Slight chance of thunderstorms
early in the evening. Slight chance of showers
early in the evening. Chance of precipitation
20 percent.
Chance of thunder...10 percent.
Min temperature.....41-46.
24 hr trend......8 degrees warmer.
Max humidity........75-81 percent.
24 hr trend......2 percent wetter.
Humidity recovery...Excellent.
20-foot winds.......Southeast winds 10 to 15 mph with gusts to
around 35 mph until 0300, then
downslope/downvalley 4-7 mph.
Ridge top winds.....South 15 to 20 mph.
Chc of wetting rain.Zero percent.
Transport winds.....South 15 to 20 mph.
Mixing Height.......2600-4600 ft agl until 2400, then 400-800 ft
agl.
Smoke dispersal.....Fair to good until 2400, then poor.
.FRIDAY...
Sky/weather.........Mostly sunny. Slight chance of showers and
thunderstorms late in the afternoon. Chance of
precipitation 20 percent.
Chance of thunder...10 percent.
Max temperature.....59-64.
24 hr trend......3 degrees cooler.
Min humidity........42-48 percent.
24 hr trend......10 percent wetter.
20-foot winds.......North winds around 10 mph. Gusts up to 20 mph.
Ridge top winds.....North around 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Northwest around 15 mph.
Mixing Height.......1400-3400 ft agl until 1200, then 4800-6800 ft
agl.
Smoke dispersal.....Fair to good.
.Forecast days 3 through 7......
.FRIDAY 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.
.SATURDAY...Showers and chance of thunderstorms. Lows in the mid
40s. Highs in the upper 50s. Northeast winds around 10 mph.
.SUNDAY...Partly cloudy. Showers likely and chance of
thunderstorms. Lows in the lower 40s. Highs in the lower 60s.
East winds around 10 mph.
.MEMORIAL DAY...Mostly clear. Slight chance of showers and
thunderstorms. Lows in the mid 40s. Highs in the upper 60s.
Southeast winds around 10 mph.
.TUESDAY THROUGH WEDNESDAY...Partly cloudy with slight chance of
showers and thunderstorms. Lows in the upper 40s. Highs 70 to 75.
$$
WYZ282-231030-
South Bighorn Basin/Worland BLM-
Including the cities of Ten Sleep, Thermopolis, and Worland
227 AM MDT Thu May 22 2025
.TODAY...
Sky/weather.........Partly cloudy.
Chance of thunder...0 percent.
Max temperature.....61-66.
24 hr trend......10 degrees warmer.
Min humidity........26-32 percent.
24 hr trend......8 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.....Southeast 15 to 20 mph.
Chc of wetting rain.Zero percent.
Transport winds.....South 15 to 20 mph.
Mixing Height.......1400-3400 ft agl until 1200, then 5400-7400 ft
agl.
Smoke dispersal.....Poor to fair until 1200, then good to very
good.
.TONIGHT...
Sky/weather.........Partly cloudy.
Chance of thunder...0 percent.
Min temperature.....39-44.
24 hr trend......6 degrees warmer.
Max humidity........71-77 percent.
24 hr trend......2 percent wetter.
Humidity recovery...Excellent.
20-foot winds.......Southeast winds around 10 mph with gusts to
around 25 mph until 2400, then
downslope/downvalley 4-7 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 west.
Mixing Height.......1600-3600 ft agl until 2400, then 400-600 ft
agl.
Smoke dispersal.....Poor.
.FRIDAY...
Sky/weather.........Mostly sunny. Slight chance of showers and
thunderstorms late in the afternoon. Chance of
precipitation 20 percent.
Chance of thunder...10 percent.
Max temperature.....60-65.
24 hr trend......1 degree cooler.
Min humidity........26-32 percent.
24 hr trend......3 percent wetter.
20-foot winds.......Upslope/upvalley 5-9 mph until 1500, then north
around 10 mph. Gusts up to 15 mph.
Ridge top winds.....North around 10 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Northwest around 10 mph.
Mixing Height.......1400-3400 ft agl until 1200, then 5000-7000 ft
agl.
Smoke dispersal.....Poor to fair.
.Forecast days 3 through 7......
.FRIDAY NIGHT...Partly cloudy. Slight chance of showers in the
evening, then chance of showers after midnight. Lows in the mid
40s. Winds generally less than 10 mph.
.SATURDAY...Mostly cloudy with showers and chance of
thunderstorms. Lows in the mid 40s. Highs in the mid 60s. Winds
generally less than 10 mph.
.SUNDAY...Partly cloudy with chance of showers and slight chance
of thunderstorms. Lows in the mid 40s. Highs in the upper 60s.
Winds generally less than 10 mph.
.MEMORIAL DAY...Mostly clear. Slight chance of showers and
thunderstorms. Lows in the upper 40s. Highs in the lower 70s.
Winds generally less than 10 mph.
.TUESDAY...Partly cloudy. Chance of showers and slight chance of
thunderstorms. Lows in the upper 40s. Highs in the mid 70s.
.WEDNESDAY...Partly cloudy. Slight chance of showers and
thunderstorms in the afternoon. Highs in the upper 70s.
$$
WYZ275-231030-
North Bighorn Basin/Worland BLM-
Including the cities of Greybull, Lovell, and Powell
227 AM MDT Thu May 22 2025
.TODAY...
Sky/weather.........Partly cloudy.
Chance of thunder...0 percent.
Max temperature.....58-63.
24 hr trend......7 degrees warmer.
Min humidity........29-35 percent.
24 hr trend......1 percent drier.
20-foot winds.......Southeast winds 10 to 15 mph with gusts to
around 30 mph.
Ridge top winds.....Southeast 15 to 20 mph.
Chc of wetting rain.Zero percent.
Transport winds.....South 15 to 20 mph.
Mixing Height.......1400-3400 ft agl until 1200, then 5400-7400 ft
agl.
Smoke dispersal.....Poor to fair until 1200, then good to very
good.
.TONIGHT...
Sky/weather.........Partly cloudy. Slight chance of showers in the
evening. Slight chance of thunderstorms early
in the evening. Chance of precipitation 20
percent.
Chance of thunder...10 percent.
Min temperature.....38-43.
24 hr trend......6 degrees warmer.
Max humidity........72-78 percent.
24 hr trend......9 percent wetter.
Humidity recovery...Excellent.
20-foot winds.......Southeast winds around 10 mph until 2400, then
downslope/downvalley 4-7 mph until 0300, then
northwest around 10 mph. Gusts up to 20 mph.
Ridge top winds.....Southeast around 15 mph until 2400, then
northwest.
Chc of wetting rain.Less than 5 percent.
Transport winds.....Southeast around 15 mph until 2400, then west.
Mixing Height.......2000-4000 ft agl until 2400, then 400-800 ft
agl.
Smoke dispersal.....Poor.
.FRIDAY...
Sky/weather.........Mostly sunny. Slight chance of showers and
thunderstorms late in the afternoon. Chance of
precipitation 20 percent.
Chance of thunder...10 percent.
Max temperature.....57-62.
24 hr trend......1 degree cooler.
Min humidity........32-38 percent.
24 hr trend......4 percent wetter.
20-foot winds.......Northwest winds around 10 mph until 1200, then
upslope/upvalley 5-9 mph until 1500, then north
around 10 mph. Gusts up to 15 mph.
Ridge top winds.....Northwest around 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Northwest around 15 mph.
Mixing Height.......1600-3600 ft agl until 1200, then 5600-7600 ft
agl.
Smoke dispersal.....Poor to fair.
.Forecast days 3 through 7......
.FRIDAY NIGHT...Mostly cloudy with slight chance of showers. Lows
in the mid 40s. North winds around 10 mph.
.SATURDAY...Mostly cloudy. Showers and chance of thunderstorms.
Lows in the mid 40s. Highs in the mid 60s. North winds around
10 mph.
.SUNDAY...Mostly clear with chance of showers and slight chance
of thunderstorms. Lows in the mid 40s. Highs in the upper 60s.
Winds generally less than 10 mph.
.MEMORIAL DAY...Mostly clear. Slight chance of showers and
thunderstorms. Lows in the upper 40s. Highs in the mid 70s. Winds
generally less than 10 mph.
.TUESDAY...Partly cloudy with chance of showers and slight chance
of thunderstorms. Lows around 50. Highs in the mid 70s.
.WEDNESDAY...Partly cloudy. Slight chance of showers and
thunderstorms in the afternoon. Highs in the upper 70s.
$$
WYZ276-231030-
Cody Foothills-
Including the cities of Clark, Cody, and Meeteetse
227 AM MDT Thu May 22 2025
.TODAY...
Sky/weather.........Partly cloudy. Slight chance of showers early
in the afternoon. Slight chance of
thunderstorms late in the afternoon. Chance of
precipitation 20 percent.
Chance of thunder...20 percent.
Max temperature.....59-64.
24 hr trend......6 degrees warmer.
Min humidity........30-36 percent.
24 hr trend......3 percent wetter.
20-foot winds.......Upslope/upvalley 5-9 mph until 0900, then
southeast 10 to 15 mph. Gusts up to 30 mph.
Ridge top winds.....Southeast 15 to 20 mph.
Chc of wetting rain.Zero percent.
Transport winds.....South 15 to 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.
.TONIGHT...
Sky/weather.........Partly cloudy then becoming clear. Slight
chance of showers early in the evening. Chance
of showers 20 percent.
Chance of thunder...0 percent.
Min temperature.....37-42.
24 hr trend......3 degrees warmer.
Max humidity........65-71 percent.
24 hr trend......Unchanged.
Humidity recovery...Good.
20-foot winds.......South winds around 10 mph until 2100, then
downslope/downvalley 4-7 mph until 0300, then
west around 10 mph. Gusts up to 20 mph.
Ridge top winds.....Southwest around 10 mph.
Chc of wetting rain.Less than 5 percent.
Transport winds.....West around 15 mph.
Mixing Height.......1600-3600 ft agl until 2400, then 600-1000 ft
agl.
Smoke dispersal.....Poor.
.FRIDAY...
Sky/weather.........Sunny then becoming partly cloudy. Slight
chance of showers and thunderstorms late in the
afternoon. Chance of precipitation 20 percent.
Chance of thunder...20 percent.
Max temperature.....59-64.
24 hr trend......1 degree cooler.
Min humidity........34-40 percent.
24 hr trend......4 percent wetter.
20-foot winds.......Northwest winds around 10 mph until 0900, then
north. Gusts up to 20 mph.
Ridge top winds.....North 10 to 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West around 15 mph.
Mixing Height.......2000-4000 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......
.FRIDAY NIGHT...Mostly cloudy with slight chance of showers. Lows
in the mid 40s. Winds generally less than 10 mph.
.SATURDAY...Mostly cloudy. Showers and chance of thunderstorms.
Lows in the lower 40s. Highs in the lower 60s. North winds around
10 mph.
.SUNDAY...Mostly clear with chance of showers and slight chance
of thunderstorms. Lows in the mid 40s. Highs in the mid 60s.
Winds generally less than 10 mph.
.MEMORIAL DAY...Mostly clear. Slight chance of showers and
thunderstorms. Lows in the upper 40s. Highs around 70. Winds
generally less than 10 mph.
.TUESDAY...Partly cloudy with chance of showers and
thunderstorms. Lows in the upper 40s. Highs in the lower 70s.
.WEDNESDAY...Partly cloudy. Slight chance of showers and
thunderstorms in the afternoon. Highs in the mid 70s.
$$
WYZ287-231030-
Owl Creek Mountains-
227 AM MDT Thu May 22 2025
.TODAY...
Sky/weather.........Partly cloudy.
Chance of thunder...0 percent.
Max temperature.....59-64.
24 hr trend......9 degrees warmer.
Min humidity........28-34 percent.
24 hr trend......6 percent drier.
20-foot winds.......South winds 10 to 15 mph with gusts to around
25 mph.
Ridge top winds.....South 15 to 20 mph.
Chc of wetting rain.Zero percent.
Transport winds.....South 15 to 20 mph.
Mixing Height.......600-2600 ft agl until 1200, then 3600-5600 ft
agl.
Smoke dispersal.....Poor to fair.
.TONIGHT...
Sky/weather.........Partly cloudy then becoming clear.
Chance of thunder...0 percent.
Min temperature.....39-44.
24 hr trend......6 degrees warmer.
Max humidity........54-60 percent.
24 hr trend......13 percent drier.
Humidity recovery...Moderate.
20-foot winds.......Southwest winds around 10 mph until 0300, then
west. 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.......1600-3600 ft agl until 2400, then 200-600 ft
agl.
Smoke dispersal.....Poor.
.FRIDAY...
Sky/weather.........Mostly sunny. Slight chance of showers and
thunderstorms late in the afternoon. Chance of
precipitation 20 percent.
Chance of thunder...20 percent.
Max temperature.....60-65.
24 hr trend......Unchanged.
Min humidity........28-34 percent.
24 hr trend......3 percent wetter.
20-foot winds.......Northwest winds around 10 mph until 0900, then
upslope/upvalley 5-9 mph until 1200, then
northeast around 10 mph. Gusts up to 20 mph.
Ridge top winds.....North around 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West around 15 mph.
Mixing Height.......1200-3200 ft agl until 1200, then 5000-7000 ft
agl.
Smoke dispersal.....Poor until 1200, then good.
.Forecast days 3 through 7......
.FRIDAY NIGHT...Mostly cloudy. Slight chance of showers in the
evening, then chance of showers after midnight. Lows in the mid
40s. North winds around 10 mph.
.SATURDAY...Mostly cloudy with showers and chance of
thunderstorms. Lows in the lower 40s. Highs around 60. North
winds around 10 mph.
.SUNDAY...Partly cloudy with chance of showers and slight chance
of thunderstorms. Lows in the lower 40s. Highs in the lower 60s.
Winds generally less than 10 mph.
.MEMORIAL DAY...Mostly clear. Slight chance of showers and
thunderstorms. Lows in the upper 40s. Highs in the upper 60s.
Winds generally less than 10 mph.
.TUESDAY...Partly cloudy with chance of showers and
thunderstorms. Lows in the upper 40s. Highs around 70.
.WEDNESDAY...Partly cloudy. Chance of showers and thunderstorms
in the afternoon. Highs in the lower 70s.
$$
WYZ286-231030-
Absaroka Mountains/North Shoshone NF-
Including the city of Pahaska
227 AM MDT Thu May 22 2025
.TODAY...
Sky/weather.........Partly cloudy. Slight chance of showers early
in the afternoon. Chance of showers and slight
chance of thunderstorms late in the afternoon.
Chance of precipitation 50 percent.
Chance of thunder...20 percent.
Max temperature.....49-54.
24 hr trend......5 degrees warmer.
Min humidity........41-47 percent.
24 hr trend......6 percent wetter.
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 10 mph until 1200, then around 20
mph.
Chc of wetting rain.Less than 5 percent.
Transport winds.....South around 10 mph until 1200, then around 20
mph.
Mixing Height.......1000-3000 ft agl until 1200, then 3600-5600 ft
agl.
Smoke dispersal.....Poor until 1200, then good.
.TONIGHT...
Sky/weather.........Partly cloudy. Chance of showers early in the
evening. Slight chance of thunderstorms early
in the evening. Slight chance of showers early
in the evening. Chance of precipitation 50
percent.
Chance of thunder...20 percent.
Min temperature.....31-36.
24 hr trend......5 degrees warmer.
Max humidity........66-72 percent.
24 hr trend......5 percent drier.
Humidity recovery...Good.
20-foot winds.......West winds 10 to 15 mph with gusts to around 30
mph.
Ridge top winds.....West 15 to 20 mph.
Chc of wetting rain.Less than 5 percent.
Transport winds.....West 15 to 20 mph.
Mixing Height.......1200-3200 ft agl until 2400, then 400-1000 ft
agl.
Smoke dispersal.....Poor to fair.
.FRIDAY...
Sky/weather.........Mostly sunny then becoming partly cloudy.
Slight chance of showers and thunderstorms late
in the afternoon. Chance of precipitation 20
percent.
Chance of thunder...20 percent.
Max temperature.....50-55.
24 hr trend......1 degree warmer.
Min humidity........37-43 percent.
24 hr trend......6 percent drier.
20-foot winds.......West winds 10 to 15 mph with gusts to around 30
mph.
Ridge top winds.....West 15 to 20 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West 15 to 20 mph.
Mixing Height.......1800-3800 ft agl until 1200, then 5200-7200 ft
agl.
Smoke dispersal.....Poor to fair until 1200, then very good.
.Forecast days 3 through 7......
.FRIDAY NIGHT...Mostly cloudy. Slight chance of showers and snow
showers in the evening, then slight chance of showers after
midnight. Lows in the mid 30s. Winds generally less than 10 mph.
.SATURDAY...Partly cloudy. Showers, chance of thunderstorms and
snow showers. Lows in the mid 30s. Highs in the lower 50s. Winds
generally less than 10 mph.
.SUNDAY...Mostly clear 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.
.MEMORIAL DAY...Mostly clear. Slight chance of showers and
thunderstorms. Lows around 40. Highs in the lower 60s. Winds
generally less than 10 mph.
.TUESDAY...Partly cloudy with chance of showers and slight chance
of thunderstorms. Lows in the lower 40s. Highs in the lower 60s.
.WEDNESDAY...Partly cloudy. Chance of showers and slight chance
of thunderstorms in the afternoon. Highs in the mid 60s.
$$
WYZ140-231030-
Yellowstone National Park-
Including the cities of Lake, Mammoth, and Old Faithful
227 AM MDT Thu May 22 2025
.TODAY...
Sky/weather.........Mostly cloudy. Slight chance of showers early
in the afternoon. Slight chance of
thunderstorms late in the afternoon, then
chance of showers and thunderstorms late in the
afternoon. Chance of precipitation 50 percent.
Chance of thunder...30 percent.
Max temperature.....51-56.
24 hr trend......7 degrees warmer.
Min humidity........35-41 percent.
24 hr trend......Unchanged.
20-foot winds.......Upslope/upvalley 5-9 mph until 0900, then south
10 to 15 mph with gusts to around 30 mph.
Ridge top winds.....South around 10 mph until 1200, then around 20
mph.
Chc of wetting rain.Less than 5 percent.
Transport winds.....South around 15 mph until 1200, then southwest
around 25 mph.
Mixing Height.......1000-3000 ft agl until 1200, then 4200-6200 ft
agl.
Smoke dispersal.....Poor until 1200, then good to very good.
.TONIGHT...
Sky/weather.........Partly cloudy. Chance of showers early in the
evening. Slight chance of thunderstorms early
in the evening. Slight chance of showers early
in the evening. Chance of precipitation 50
percent.
Chance of thunder...20 percent.
Min temperature.....29-34.
24 hr trend......3 degrees warmer.
Max humidity........78-84 percent.
24 hr trend......Unchanged.
Humidity recovery...Excellent.
20-foot winds.......Southwest winds around 10 mph with gusts to
around 25 mph until 2400, then
downslope/downvalley 4-7 mph.
Ridge top winds.....Southwest 10 to 15 mph.
Chc of wetting rain.Less than 5 percent.
Transport winds.....West 10 to 15 mph.
Mixing Height.......1200-3200 ft agl until 2400, then 400-800 ft
agl.
Smoke dispersal.....Poor.
.FRIDAY...
Sky/weather.........Mostly sunny then becoming partly cloudy.
Slight chance of showers and thunderstorms late
in the afternoon. Chance of precipitation 20
percent.
Chance of thunder...20 percent.
Max temperature.....51-56.
24 hr trend......Unchanged.
Min humidity........33-39 percent.
24 hr trend......4 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph until 0900, then
southwest 10 to 15 mph. Gusts up to 25 mph.
Ridge top winds.....Southwest around 10 mph until 1200, then around
20 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West 15 to 20 mph.
Mixing Height.......1800-3800 ft agl until 1200, then 5200-7200 ft
agl.
Smoke dispersal.....Poor to fair until 1200, then good to very
good.
.Forecast days 3 through 7......
.FRIDAY NIGHT...Partly cloudy. Slight chance of showers in the
evening. Lows in the lower 30s. Winds generally less than 10 mph.
.SATURDAY...Partly cloudy with showers likely with possible
thunderstorms and snow showers. Lows in the lower 30s. Highs in
the upper 50s. Winds generally less than 10 mph.
.SUNDAY...Mostly clear. Slight chance of showers. Lows in the mid
30s. Highs in the lower 60s. Winds generally less than 10 mph.
.MEMORIAL DAY...Mostly clear. Slight chance of showers and
thunderstorms. Lows in the upper 30s. Highs in the mid 60s. Winds
generally less than 10 mph.
.TUESDAY...Partly cloudy with chance of showers and slight chance
of thunderstorms. Lows in the upper 30s. Highs in the mid 60s.
.WEDNESDAY...Partly cloudy. Chance of showers and slight chance
of thunderstorms in the afternoon. Highs in the upper 60s.
$$
WYZ415-231030-
North Zone Bridger Teton NF and Grand Teton NP-
Including the cities of Jackson and Moran
227 AM MDT Thu May 22 2025
.TODAY...
Sky/weather.........Partly cloudy. Slight chance of showers early
in the afternoon. Slight chance of
thunderstorms late in the afternoon. Chance of
precipitation 20 percent.
Chance of thunder...20 percent.
Max temperature.....54-59.
24 hr trend......7 degrees warmer.
Min humidity........37-43 percent.
24 hr trend......4 percent wetter.
20-foot winds.......Upslope/upvalley 5-9 mph until 0900, then south
10 to 15 mph with gusts to around 30 mph.
Ridge top winds.....Southeast around 15 mph until 1200, then
southwest.
Chc of wetting rain.Zero percent.
Transport winds.....South around 15 mph until 1200, then southwest
around 25 mph.
Mixing Height.......800-2800 ft agl until 1200, then 4200-6200 ft
agl.
Smoke dispersal.....Poor until 1200, then good to very good.
.TONIGHT...
Sky/weather.........Partly cloudy then becoming clear. Slight
chance of showers and thunderstorms early in
the evening. Chance of precipitation 20
percent.
Chance of thunder...20 percent.
Min temperature.....29-34.
24 hr trend......4 degrees warmer.
Max humidity........62-68 percent.
24 hr trend......4 percent drier.
Humidity recovery...Good.
20-foot winds.......Southwest winds 10 to 15 mph with gusts to
around 30 mph until 2400, then
downslope/downvalley 4-7 mph.
Ridge top winds.....Southwest 10 to 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest 10 to 15 mph.
Mixing Height.......1000-3000 ft agl until 2400, then 400-1000 ft
agl.
Smoke dispersal.....Poor.
.FRIDAY...
Sky/weather.........Mostly sunny.
Chance of thunder...0 percent.
Max temperature.....53-58.
24 hr trend......Unchanged.
Min humidity........33-39 percent.
24 hr trend......5 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph until 0900, then
southwest 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.....West 15 to 20 mph.
Mixing Height.......1800-3800 ft agl until 1200, then 5200-7200 ft
agl.
Smoke dispersal.....Poor to fair until 1200, then good to very
good.
.Forecast days 3 through 7......
.FRIDAY NIGHT...Mostly cloudy. Slight chance of showers in the
evening. Lows in the mid 30s. Winds generally less than 10 mph.
.SATURDAY...Partly cloudy with showers likely with possible
thunderstorms and snow showers. Lows in the lower 30s. Highs in
the upper 50s. Winds generally less than 10 mph.
.SUNDAY...Mostly clear. Chance of showers. Lows in the mid 30s.
Highs around 60. Winds generally less than 10 mph.
.MEMORIAL DAY...Mostly clear. Slight chance of showers and
thunderstorms. Lows in the upper 30s. Highs in the mid 60s. Winds
generally less than 10 mph.
.TUESDAY...Partly cloudy with chance of showers and slight chance
of thunderstorms. Lows in the upper 30s. Highs in the mid 60s.
.WEDNESDAY...Partly cloudy. Chance of showers and slight chance
of thunderstorms in the afternoon. Highs in the mid 60s.
$$
WYZ416-231030-
West Wind River Mountains/East Zone Bridger Teton NF-
227 AM MDT Thu May 22 2025
.TODAY...
Sky/weather.........Partly cloudy. Slight chance of showers and
thunderstorms late in the afternoon. Chance of
precipitation 20 percent.
Chance of thunder...20 percent.
Max temperature.....52-57.
24 hr trend......7 degrees warmer.
Min humidity........31-37 percent.
24 hr trend......2 percent wetter.
20-foot winds.......Upslope/upvalley 5-9 mph until 0900, then south
10 to 15 mph with gusts to around 35 mph until
1500, then southwest around 20 mph with gusts
to around 35 mph.
Ridge top winds.....South around 10 mph until 1200, then southwest
around 20 mph.
Chc of wetting rain.Zero percent.
Transport winds.....South around 15 mph until 1200, then southwest
around 25 mph.
Mixing Height.......800-2800 ft agl until 1200, then 4800-6800 ft
agl.
Smoke dispersal.....Poor until 1200, then very good.
.TONIGHT...
Sky/weather.........Partly cloudy then becoming clear.
Chance of thunder...0 percent.
Min temperature.....32-37.
24 hr trend......4 degrees warmer.
Max humidity........55-61 percent.
24 hr trend......4 percent drier.
Humidity recovery...Moderate.
20-foot winds.......Southwest winds around 20 mph with gusts to
around 35 mph until 2100. Downslope/downvalley
4-7 mph after 0300.
Ridge top winds.....Southwest 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 around 10
mph.
Mixing Height.......2200-4200 ft agl until 2400, then 400-800 ft
agl.
Smoke dispersal.....Good until 2400, then poor.
.FRIDAY...
Sky/weather.........Mostly sunny.
Chance of thunder...0 percent.
Max temperature.....52-57.
24 hr trend......Unchanged.
Min humidity........27-33 percent.
24 hr trend......5 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph until 0900, then west
10 to 15 mph. Gusts up to 30 mph.
Ridge top winds.....West 15 to 20 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West around 15 mph until 1200, then around 25
mph.
Mixing Height.......1600-3600 ft agl until 1200, then 5600-7600 ft
agl.
Smoke dispersal.....Poor to fair until 1200, then very good.
.Forecast days 3 through 7......
.FRIDAY NIGHT...Mostly cloudy. Slight chance of showers and snow
showers after midnight. Lows in the mid 30s. Winds generally less
than 10 mph.
.SATURDAY...Mostly cloudy with showers likely, chance of
thunderstorms and snow showers. Lows in the lower 30s. Highs in
the mid 50s. Winds generally less than 10 mph.
.SUNDAY...Partly cloudy with chance of showers, snow showers and
slight chance of thunderstorms. Lows in the lower 30s. Highs in
the mid 50s. Winds generally less than 10 mph.
.MEMORIAL DAY...Mostly clear. Slight chance of showers and
thunderstorms. Lows in the mid 30s. Highs in the upper 50s. Winds
generally less than 10 mph.
.TUESDAY...Partly cloudy with chance of showers and slight chance
of thunderstorms. Lows in the upper 30s. Highs in the lower 60s.
.WEDNESDAY...Partly cloudy. Slight chance of showers and
thunderstorms in the afternoon. Highs in the lower 60s.
$$
WYZ288-231030-
East Wind River Mountains/South Shoshone NF-
Including the cities of Dubois and South Pass
227 AM MDT Thu May 22 2025
.TODAY...
Sky/weather.........Partly cloudy. Slight chance of showers early
in the afternoon. Slight chance of
thunderstorms late in the afternoon. Chance of
precipitation 20 percent.
Chance of thunder...10 percent.
Max temperature.....58-63.
24 hr trend......8 degrees warmer.
Min humidity........31-37 percent.
24 hr trend......4 percent wetter.
20-foot winds.......Upslope/upvalley 5-9 mph until 0900. Winds
southwest around 20 mph with gusts to around 35
mph after 1500.
Ridge top winds.....South around 10 mph until 1200, then southwest
around 20 mph.
Chc of wetting rain.Zero percent.
Transport winds.....South around 10 mph until 1200, then southwest
around 25 mph.
Mixing Height.......1000-3000 ft agl until 1200, then 5800-7800 ft
agl.
Smoke dispersal.....Poor until 1200, then excellent.
.TONIGHT...
Sky/weather.........Partly cloudy then becoming clear.
Chance of thunder...0 percent.
Min temperature.....33-38.
24 hr trend......7 degrees warmer.
Max humidity........53-59 percent.
24 hr trend......5 percent drier.
Humidity recovery...Moderate.
20-foot winds.......West winds 15 to 20 mph with gusts to around 40
mph until 2400, then around 10 mph with gusts
to around 25 mph.
Ridge top winds.....West 15 to 20 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West 15 to 20 mph.
Mixing Height.......2600-4600 ft agl until 2400, then 400-800 ft
agl.
Smoke dispersal.....Good to very good until 2400, then poor.
.FRIDAY...
Sky/weather.........Mostly sunny. Slight chance of showers late in
the afternoon. Chance of showers 20 percent.
Chance of thunder...0 percent.
Max temperature.....58-63.
24 hr trend......1 degree warmer.
Min humidity........27-33 percent.
24 hr trend......5 percent drier.
20-foot winds.......West winds 15 to 20 mph with gusts to around 35
mph.
Ridge top winds.....West 20 to 25 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West 20 to 25 mph.
Mixing Height.......1800-3800 ft agl until 1200, then 6000-8000 ft
agl.
Smoke dispersal.....Fair to good until 1200, then very good to
excellent.
.Forecast days 3 through 7......
.FRIDAY NIGHT...Mostly cloudy with slight chance of showers and
snow showers. Lows in the upper 30s. Winds generally less than
10 mph.
.SATURDAY...Mostly cloudy with showers, chance of thunderstorms
and snow showers. Lows in the upper 30s. Highs in the mid 50s.
Winds generally less than 10 mph.
.SUNDAY...Partly cloudy with chance of showers, snow showers and
slight chance of thunderstorms. Lows in the upper 30s. Highs in
the mid 50s. Winds generally less than 10 mph.
.MEMORIAL DAY...Mostly clear. Slight chance of showers and
thunderstorms. Lows around 40. Highs in the lower 60s. Winds
generally less than 10 mph.
.TUESDAY...Partly cloudy with chance of showers and slight chance
of thunderstorms. Lows in the lower 40s. Highs in the lower 60s.
.WEDNESDAY...Partly cloudy. Chance of showers and slight chance
of thunderstorms in the afternoon. Highs in the mid 60s.
$$
WYZ414-231030-
Salt and Wyoming Ranges/West Zone Bridger Teton NF-
Including the city of Afton
227 AM MDT Thu May 22 2025
.TODAY...
Sky/weather.........Partly cloudy.
Chance of thunder...0 percent.
Max temperature.....56-61.
24 hr trend......9 degrees warmer.
Min humidity........29-35 percent.
24 hr trend......2 percent drier.
20-foot winds.......Southeast winds around 10 mph with gusts to
around 25 mph until 1200, then southwest 15 to
20 mph with gusts to around 40 mph.
Ridge top winds.....Southeast around 15 mph until 1200, then
southwest around 25 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Southeast around 15 mph until 1200, then
southwest around 30 mph.
Mixing Height.......1000-3000 ft agl until 1200, then 5800-7800 ft
agl.
Smoke dispersal.....Poor until 1200, then excellent.
.TONIGHT...
Sky/weather.........Mostly clear.
Chance of thunder...0 percent.
Min temperature.....33-38.
24 hr trend......4 degrees warmer.
Max humidity........58-64 percent.
24 hr trend......8 percent drier.
Humidity recovery...Good.
20-foot winds.......Southwest winds around 20 mph with gusts to
around 35 mph until 2100. Downslope/downvalley
4-7 mph after 2400.
Ridge top winds.....West around 20 mph until 2400, then around 10
mph.
Chc of wetting rain.Zero percent.
Transport winds.....West around 20 mph until 2400, then around 10
mph.
Mixing Height.......2800-4800 ft agl until 2400, then 400-1000 ft
agl.
Smoke dispersal.....Good to very good until 2400, then poor.
.FRIDAY...
Sky/weather.........Mostly sunny.
Chance of thunder...0 percent.
Max temperature.....55-60.
24 hr trend......1 degree cooler.
Min humidity........27-33 percent.
24 hr trend......2 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph until 0900, then west
10 to 15 mph. Gusts up to 25 mph.
Ridge top winds.....West 15 to 20 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West 15 to 20 mph.
Mixing Height.......2000-4000 ft agl until 1200, then 6000-8000 ft
agl.
Smoke dispersal.....Poor to fair until 1200, then very good.
.Forecast days 3 through 7......
.FRIDAY NIGHT...Mostly cloudy. Lows in the upper 30s. Winds
generally less than 10 mph.
.SATURDAY...Partly cloudy. Chance of showers and thunderstorms.
Lows in the mid 30s. Highs around 60. Winds generally less than
10 mph.
.SUNDAY...Mostly clear. Chance of showers and slight chance of
thunderstorms. Lows in the upper 30s. Highs in the lower 60s.
Winds generally less than 10 mph.
.MEMORIAL DAY...Mostly clear. Slight chance of showers and
thunderstorms. Lows around 40. Highs in the mid 60s. Winds
generally less than 10 mph.
.TUESDAY THROUGH WEDNESDAY...Partly cloudy with slight chance of
showers and thunderstorms. Lows in the lower 40s. Highs in the
upper 60s.
$$
WYZ278-231030-
Upper Green River Basin/Rock Springs BLM-
Including the cities of Big Piney, Farson, and Pinedale
227 AM MDT Thu May 22 2025
.TODAY...
Sky/weather.........Mostly sunny then becoming partly cloudy.
Chance of thunder...0 percent.
Max temperature.....62-67.
24 hr trend......10 degrees warmer.
Min humidity........20-26 percent.
24 hr trend......1 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph until 0900, then south
10 to 15 mph with gusts to around 35 mph until
1500, then southwest around 20 mph with gusts
to around 35 mph.
Ridge top winds.....East around 10 mph until 1200, then southwest
around 20 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Southeast around 10 mph until 1200, then
southwest around 30 mph.
Mixing Height.......1400-3400 ft agl until 1200, then 7600-9600 ft
agl.
Smoke dispersal.....Poor to fair until 1200, then excellent.
.TONIGHT...
Sky/weather.........Mostly clear.
Chance of thunder...0 percent.
Min temperature.....34-39.
24 hr trend......6 degrees warmer.
Max humidity........59-65 percent.
24 hr trend......1 percent wetter.
Humidity recovery...Good.
20-foot winds.......West winds around 20 mph with gusts to around
40 mph until 2100. Downslope/downvalley 4-7 mph
after 2400.
Ridge top winds.....West around 20 mph until 2400, then northwest
around 10 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West around 20 mph until 2400, then northwest
around 10 mph.
Mixing Height.......4200-6200 ft agl until 2400, then 400-600 ft
agl.
Smoke dispersal.....Very good to excellent until 2400, then poor.
.FRIDAY...
Sky/weather.........Mostly sunny.
Chance of thunder...0 percent.
Max temperature.....60-65.
24 hr trend......Unchanged.
Min humidity........19-25 percent.
24 hr trend......2 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph until 0900, then west
10 to 15 mph with gusts to around 30 mph.
Ridge top winds.....West around 10 mph until 1200, then around 20
mph.
Chc of wetting rain.Zero percent.
Transport winds.....West around 15 mph until 1200, then around 25
mph.
Mixing Height.......2200-4200 ft agl until 1200, then 7600-9600 ft
agl.
Smoke dispersal.....Poor to fair until 1200, then excellent.
.Forecast days 3 through 7......
.FRIDAY NIGHT...Mostly cloudy. Lows in the upper 30s. Winds
generally less than 10 mph.
.SATURDAY...Mostly cloudy. Chance of showers and thunderstorms.
Lows in the upper 30s. Highs in the mid 60s. Winds generally less
than 10 mph.
.SUNDAY...Mostly clear with chance of showers and slight chance
of thunderstorms. Lows in the upper 30s. Highs in the mid 60s.
Winds generally less than 10 mph.
.MEMORIAL DAY...Mostly clear. Lows in the lower 40s. Highs around
70. Winds generally less than 10 mph.
.TUESDAY THROUGH WEDNESDAY...Partly cloudy with slight chance of
showers and thunderstorms. Lows in the lower 40s. Highs in the
lower 70s.
$$
WYZ277-231030-
Lincoln and Uinta Counties/Lower Elevations-
Including the cities of Evanston, Fort Bridger, and Kemmerer
227 AM MDT Thu May 22 2025
.TODAY...
Sky/weather.........Mostly sunny.
Chance of thunder...0 percent.
Max temperature.....63-68.
24 hr trend......11 degrees warmer.
Min humidity........20-26 percent.
24 hr trend......1 percent drier.
20-foot winds.......Breezy. East winds around 10 mph with higher
gusts until 1200, then southwest with gusts to
around 40 mph until 1500, then west around 25
mph with gusts to around 40 mph.
Ridge top winds.....East around 15 mph until 1200, then southwest
around 25 mph.
Chc of wetting rain.Zero percent.
Transport winds.....East around 15 mph until 1200, then southwest
around 30 mph.
Mixing Height.......800-2800 ft agl until 1200, then 7000-9000 ft
agl.
Smoke dispersal.....Poor until 1200, then excellent.
.TONIGHT...
Sky/weather.........Mostly clear.
Chance of thunder...0 percent.
Min temperature.....36-41.
24 hr trend......6 degrees warmer.
Max humidity........59-65 percent.
24 hr trend......2 percent drier.
Humidity recovery...Good.
20-foot winds.......West winds around 20 mph with gusts to around
35 mph until 2100. Downslope/downvalley 4-7 mph
after 2400.
Ridge top winds.....West around 20 mph until 2400, then northwest
around 10 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West around 20 mph until 2400, then northwest
around 10 mph.
Mixing Height.......3600-5600 ft agl until 2400, then 400-600 ft
agl.
Smoke dispersal.....Very good until 2400, then poor.
.FRIDAY...
Sky/weather.........Mostly sunny.
Chance of thunder...0 percent.
Max temperature.....62-67.
24 hr trend......1 degree cooler.
Min humidity........19-25 percent.
24 hr trend......1 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph until 0900, then west
10 to 15 mph with gusts to around 25 mph.
Ridge top winds.....West around 10 mph until 1200, then around 20
mph.
Chc of wetting rain.Zero percent.
Transport winds.....West around 10 mph until 1200, then around 25
mph.
Mixing Height.......1800-3800 ft agl until 1200, then 7200-9200 ft
agl.
Smoke dispersal.....Poor to fair until 1200, then very good to
excellent.
.Forecast days 3 through 7......
.FRIDAY NIGHT...Mostly cloudy. Lows in the lower 40s. Winds
generally less than 10 mph.
.SATURDAY...Partly cloudy with chance of showers and
thunderstorms. Lows in the upper 30s. Highs in the mid 60s. Winds
generally less than 10 mph.
.SUNDAY...Mostly clear. Chance of showers and slight chance of
thunderstorms. Lows in the upper 30s. Highs in the mid 60s. Winds
generally less than 10 mph.
.MEMORIAL DAY...Mostly clear. Lows in the lower 40s. Highs around
70. Winds generally less than 10 mph.
.TUESDAY THROUGH WEDNESDAY...Partly cloudy with slight chance of
showers and thunderstorms. Lows in the lower 40s. Highs in the
mid 70s.
$$
WYZ279-231030-
Sweetwater County/Rock Springs BLM/Flaming Gorge NRA-
Including the cities of Green River, Rock Springs, and Wamsutter
227 AM MDT Thu May 22 2025
.TODAY...
Sky/weather.........Mostly sunny then becoming partly cloudy.
Chance of thunder...0 percent.
Max temperature.....68-73.
24 hr trend......11 degrees warmer.
Min humidity........15-21 percent.
24 hr trend......1 percent wetter.
20-foot winds.......Upslope/upvalley 5-9 mph until 0900, then
southeast around 10 mph with gusts to around 25
mph until 1200, then southwest 15 to 20 mph
with gusts to around 40 mph.
Ridge top winds.....Southeast around 15 mph until 1200, then
southwest around 25 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Southeast around 15 mph until 1200, then
southwest around 30 mph.
Mixing Height.......1800-3800 ft agl until 1200, then 9200-11200 ft
agl.
Smoke dispersal.....Poor to fair until 1200, then excellent.
.TONIGHT...
Sky/weather.........Partly cloudy.
Chance of thunder...0 percent.
Min temperature.....40-45.
24 hr trend......8 degrees warmer.
Max humidity........51-57 percent.
24 hr trend......6 percent wetter.
Humidity recovery...Moderate.
20-foot winds.......West winds around 20 mph with gusts to around
35 mph until 2100. Downslope/downvalley 4-7 mph
after 2400.
Ridge top winds.....West around 20 mph until 2400, then around 10
mph.
Chc of wetting rain.Zero percent.
Transport winds.....West around 20 mph until 2400, then around 10
mph.
Mixing Height.......4400-6400 ft agl until 2400, then 400-600 ft
agl.
Smoke dispersal.....Very good until 2400, then poor.
.FRIDAY...
Sky/weather.........Sunny then becoming partly cloudy.
Chance of thunder...0 percent.
Max temperature.....67-72.
24 hr trend......1 degree cooler.
Min humidity........18-24 percent.
24 hr trend......1 percent wetter.
20-foot winds.......Upslope/upvalley 5-9 mph until 0900, then west
10 to 15 mph with gusts to around 30 mph.
Ridge top winds.....West 15 to 20 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West around 15 mph until 1200, then around 25
mph.
Mixing Height.......1800-3800 ft agl until 1200, then 7800-9800 ft
agl.
Smoke dispersal.....Poor to fair until 1200, then excellent.
.Forecast days 3 through 7......
.FRIDAY NIGHT...Mostly cloudy. Lows in the mid 40s. North winds
around 10 mph.
.SATURDAY...Mostly cloudy. Chance of showers and thunderstorms.
Lows in the lower 40s. Highs around 70. North winds around
10 mph.
.SUNDAY...Partly cloudy with chance of showers and slight chance
of thunderstorms. Lows around 40. Highs in the mid 60s. Northeast
winds around 10 mph.
.MEMORIAL DAY...Mostly clear. Lows in the lower 40s. Highs in the
lower 70s. Winds generally less than 10 mph.
.TUESDAY THROUGH WEDNESDAY...Partly cloudy with slight chance of
showers and thunderstorms. Lows in the mid 40s. Highs in the mid
70s.
$$
WYZ289-231030-
Granite/Green/Ferris/Rattlesnake Mountains-
Including the city of Jeffrey City
227 AM MDT Thu May 22 2025
.TODAY...
Sky/weather.........Mostly sunny then becoming partly cloudy.
Slight chance of showers late in the afternoon.
Chance of showers 20 percent.
Chance of thunder...0 percent.
Max temperature.....66-71.
24 hr trend......11 degrees warmer.
Min humidity........15-21 percent.
24 hr trend......1 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph until 0900, then south
10 to 15 mph with gusts to around 30 mph until
1500, then southwest around 20 mph with gusts
to around 30 mph.
Ridge top winds.....Southeast around 10 mph until 1200, then
southwest around 20 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Southeast around 10 mph until 1200, then
southwest around 25 mph.
Mixing Height.......1400-3400 ft agl until 1200, then 8400-10400 ft
agl.
Smoke dispersal.....Poor until 1200, then excellent.
.TONIGHT...
Sky/weather.........Partly cloudy. Chance of showers early in the
evening. Slight chance of showers early in the
evening. Chance of showers 30 percent.
Chance of thunder...0 percent.
Min temperature.....40-45.
24 hr trend......9 degrees warmer.
Max humidity........55-61 percent.
24 hr trend......13 percent drier.
Humidity recovery...Moderate.
20-foot winds.......Southwest winds 10 to 15 mph with gusts to
around 35 mph until 0300, then
downslope/downvalley 4-7 mph.
Ridge top winds.....Southwest around 20 mph until 2400, then around
10 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West 15 to 20 mph.
Mixing Height.......3600-5600 ft agl until 2400, then 400-600 ft
agl.
Smoke dispersal.....Very good until 2400, then poor.
.FRIDAY...
Sky/weather.........Mostly sunny. Slight chance of showers late in
the afternoon. Chance of showers 20 percent.
Chance of thunder...0 percent.
Max temperature.....66-71.
24 hr trend......1 degree cooler.
Min humidity........15-21 percent.
24 hr trend......1 percent drier.
20-foot winds.......West winds 10 to 15 mph until 1200, then around
20 mph. Gusts up to 30 mph.
Ridge top winds.....West around 15 mph until 1200, then around 25
mph.
Chc of wetting rain.Zero percent.
Transport winds.....West around 20 mph until 1200, then around 30
mph.
Mixing Height.......2000-4000 ft agl until 1200, then 7600-9600 ft
agl.
Smoke dispersal.....Fair to good until 1200, then excellent.
.Forecast days 3 through 7......
.FRIDAY NIGHT...Mostly cloudy with slight chance of showers. Lows
in the lower 40s. North winds around 10 mph.
.SATURDAY...Mostly cloudy with showers likely and chance of
thunderstorms. Lows in the lower 40s. Highs in the mid 60s.
Northeast winds around 10 mph.
.SUNDAY...Partly cloudy with chance of showers and slight chance
of thunderstorms. Lows around 40. Highs in the lower 60s.
Northeast winds around 10 mph.
.MEMORIAL DAY...Mostly clear. Slight chance of showers and
thunderstorms. Lows in the mid 40s. Highs in the upper 60s. Winds
generally less than 10 mph.
.TUESDAY...Partly cloudy with chance of showers and slight chance
of thunderstorms. Lows in the mid 40s. Highs in the lower 70s.
.WEDNESDAY...Partly cloudy. Slight chance of showers and
thunderstorms in the afternoon. Highs in the lower 70s.
$$
WYZ300-231030-
Casper Mountain-
227 AM MDT Thu May 22 2025
.TODAY...
Sky/weather.........Mostly sunny then becoming partly cloudy.
Slight chance of showers and thunderstorms late
in the afternoon. Chance of precipitation 20
percent.
Chance of thunder...20 percent.
Max temperature.....65-70.
24 hr trend......14 degrees warmer.
Min humidity........21-27 percent.
24 hr trend......9 percent drier.
20-foot winds.......Southeast winds around 10 mph until 0900, then
upslope/upvalley 5-9 mph until 1200, then south
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 around 15 mph until 1200, then southwest.
Mixing Height.......1600-3600 ft agl until 1200, then 7400-9400 ft
agl.
Smoke dispersal.....Poor until 1200, then very good.
.TONIGHT...
Sky/weather.........Mostly cloudy then becoming partly cloudy.
Chance of showers early in the evening. Slight
chance of thunderstorms early in the evening.
Slight chance of showers early in the evening.
Chance of precipitation 40 percent.
Chance of thunder...20 percent.
Min temperature.....42-47.
24 hr trend......10 degrees warmer.
Max humidity........59-65 percent.
24 hr trend......10 percent drier.
Humidity recovery...Good.
20-foot winds.......Southeast winds 10 to 15 mph with gusts to
around 25 mph.
Ridge top winds.....Southeast 15 to 20 mph.
Chc of wetting rain.Less than 5 percent.
Transport winds.....South 15 to 20 mph.
Mixing Height.......3000-5000 ft agl until 2400, then 200-600 ft
agl.
Smoke dispersal.....Good until 2400, then poor.
.FRIDAY...
Sky/weather.........Mostly sunny. Chance of showers and slight
chance of thunderstorms late in the afternoon.
Chance of precipitation 30 percent.
Chance of thunder...20 percent.
Max temperature.....65-70.
24 hr trend......Unchanged.
Min humidity........20-26 percent.
24 hr trend......Unchanged.
20-foot winds.......Southwest winds 10 to 15 mph until 1200, then
west 15 to 20 mph. Gusts up to 30 mph.
Ridge top winds.....West 15 to 20 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West around 15 mph until 1200, then around 30
mph.
Mixing Height.......2000-4000 ft agl until 1200, then 8000-10000 ft
agl.
Smoke dispersal.....Fair to good until 1200, then excellent.
.Forecast days 3 through 7......
.FRIDAY 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.
.SATURDAY...Mostly cloudy with showers and chance of
thunderstorms. Lows in the lower 40s. Highs around 60. Northeast
winds around 10 mph.
.SUNDAY...Partly cloudy. Showers and chance of thunderstorms.
Lows in the upper 30s. Highs in the mid 50s. Winds generally less
than 10 mph.
.MEMORIAL DAY...Mostly clear. Chance of showers and slight chance
of thunderstorms. Lows in the lower 40s. Highs in the lower 60s.
Winds generally less than 10 mph.
.TUESDAY THROUGH WEDNESDAY...Partly cloudy with chance of showers
and thunderstorms. Lows in the mid 40s. Highs in the upper 60s.
$$