Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS Riverton, WY
Issued by NWS Riverton, WY
288
FNUS55 KRIW 240859
FWFRIW
Fire Weather Planning Forecast for Western and Central Wyoming
National Weather Service Riverton WY
259 AM MDT Sat May 24 2025
.DISCUSSION...
...Yellowstone NP and Teton dispatch areas (includes fire weather
zones 140...414...415...and 416)...
A weather system will move through the area and bring isolated
to widely scattered showers and thunderstorms today. The chance
of a wetting rain is small though, generally less than 1 in 4.
Wind should remain light to moderate except in and around any
shower or thunderstorm. Relative humidity will remain above
critical levels. Mixing and smoke dispersal will be generally
good to very good in the afternoon.
...Cody dispatch area (includes fire weather zones 275...276...
282...283...285...286...287...288...and 289)...
A weather system will move through the area and bring scattered
showers and thunderstorms today. The chance of a wetting rain is
good, ranging anywhere from 1 in 3 to 3 out of 5. Wind should
remain light to moderate except in and around any shower or
thunderstorm. Relative humidity will remain above critical levels.
Mixing and smoke dispersal will be generally good in the afternoon.
...Casper dispatch area (includes fire weather zones 277...278...
279...280...281...285...289...and 300)...
A weather system will move through the area and bring scattered
showers and thunderstorms today, with the greatest chance from
Zone 289 and northward. A few storms may be strong to locally
severe, mainly in Zones 280 and 300. The chance will range from
1 out of 10 in the southwestern zones to 3 out of 4 in Zone 281.
Wind should remain light to moderate except in and around any
shower or thunderstorm. Relative humidity will remain above
critical levels. Mixing and smoke dispersal will range from fair
in Zone 281 to very good in the southern zones.
...Thunderstorms imply strong gusty and erratic winds...
WYZ280-251100-
Natrona County/Casper BLM-
Including the cities of Casper and Midwest
259 AM MDT Sat May 24 2025
.TODAY...
Sky/weather.........Mostly cloudy. Chance of showers in the
morning, then showers likely and slight chance
of thunderstorms in the afternoon. Chance of
precipitation 60 percent.
Chance of thunder...20 percent.
Max temperature.....60-65.
24 hr trend......7 degrees cooler.
Min humidity........61-67 percent.
24 hr trend......34 percent wetter.
20-foot winds.......Northeast winds 10 to 15 mph with gusts to
around 30 mph until 1500, then around 20 mph
with gusts to around 30 mph.
Ridge top winds.....Northeast 15 to 20 mph.
Chc of wetting rain.5 percent until 1200, then 25 percent.
Transport winds.....Northeast 15 to 20 mph.
Mixing Height.......1200-3200 ft agl until 1200, then 3200-5000 ft
agl.
Smoke dispersal.....Fair to good.
.TONIGHT...
Sky/weather.........Cloudy. Showers likely and slight chance of
thunderstorms until early morning, then chance
of showers early in the morning. Chance of
precipitation 70 percent.
Chance of thunder...20 percent.
Min temperature.....44-49.
24 hr trend......1 degree warmer.
Max humidity........89-95 percent.
24 hr trend......Unchanged.
Humidity recovery...Excellent.
20-foot winds.......Northeast winds 10 to 15 mph with gusts to
around 30 mph until 0300, then
downslope/downvalley 4-7 mph.
Ridge top winds.....Northeast 15 to 20 mph.
Chc of wetting rain.40 percent until 2400, then 10 percent.
Transport winds.....East 15 to 20 mph.
Mixing Height.......1000-3000 ft agl.
Smoke dispersal.....Poor to fair.
.SUNDAY...
Sky/weather.........Mostly cloudy. Chance of showers through the
day. Slight chance of thunderstorms in the
afternoon. Chance of precipitation 50 percent.
Chance of thunder...20 percent.
Max temperature.....58-63.
24 hr trend......3 degrees cooler.
Min humidity........56-62 percent.
24 hr trend......4 percent drier.
20-foot winds.......Northeast winds 10 to 15 mph. Gusts up to 15
mph until 1200, then 25 mph.
Ridge top winds.....Northeast 15 to 20 mph.
Chc of wetting rain.17 percent.
Transport winds.....East 15 to 20 mph.
Mixing Height.......1600-3600 ft agl.
Smoke dispersal.....Poor to fair.
.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. East winds around
10 mph.
.MEMORIAL DAY...Partly cloudy 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.
.TUESDAY THROUGH WEDNESDAY...Partly cloudy with chance of showers
and thunderstorms. Lows in the mid 40s. Highs 66 to 71. Northeast
winds around 10 mph.
.THURSDAY...Mostly clear. Slight chance of showers and
thunderstorms. Lows in the upper 40s. Highs in the lower 70s.
.FRIDAY...Mostly sunny. Chance of showers and slight chance of
thunderstorms in the afternoon. Highs in the mid 70s.
$$
WYZ283-251100-
Upper Wind River Basin/Wind River Basin-
Including the cities of Crowheart, Lander, Riverton, and Shoshoni
259 AM MDT Sat May 24 2025
.TODAY...
Sky/weather.........Mostly cloudy. Slight chance of showers in the
morning, then showers likely and slight chance
of thunderstorms in the afternoon. Chance of
precipitation 70 percent.
Chance of thunder...20 percent.
Max temperature.....62-67.
24 hr trend......6 degrees cooler.
Min humidity........44-50 percent.
24 hr trend......21 percent wetter.
20-foot winds.......Upslope/upvalley 5-9 mph until 1200, then
northeast around 10 mph with gusts to around 25
mph.
Ridge top winds.....Northeast 10 to 15 mph.
Chc of wetting rain.Zero percent until 1200, then 25 percent.
Transport winds.....Northeast 10 to 15 mph.
Mixing Height.......1600-3600 ft agl until 1200, then 5200-7200 ft
agl.
Smoke dispersal.....Fair to good.
.TONIGHT...
Sky/weather.........Mostly cloudy. Showers likely and slight chance
of thunderstorms in the evening, then chance of
showers after midnight. Chance of precipitation
70 percent.
Chance of thunder...20 percent.
Min temperature.....43-48.
24 hr trend......1 degree warmer.
Max humidity........87-93 percent.
24 hr trend......16 percent wetter.
Humidity recovery...Excellent.
20-foot winds.......Northeast winds around 10 mph with gusts to
around 25 mph until 2400, then
downslope/downvalley 4-7 mph.
Ridge top winds.....Northeast 10 to 15 mph.
Chc of wetting rain.45 percent until 2400, then 5 percent.
Transport winds.....East 10 to 15 mph.
Mixing Height.......1600-3600 ft agl until 2400, then 800-1600 ft
agl.
Smoke dispersal.....Poor.
.SUNDAY...
Sky/weather.........Partly cloudy then becoming mostly cloudy.
Slight chance of showers in the morning, then
chance of showers and slight chance of
thunderstorms in the afternoon. Chance of
precipitation 50 percent.
Chance of thunder...20 percent.
Max temperature.....61-66.
24 hr trend......2 degrees cooler.
Min humidity........41-47 percent.
24 hr trend......1 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph until 1500, then
northeast around 10 mph. Gusts up to 15 mph.
Ridge top winds.....Northeast 10 to 15 mph.
Chc of wetting rain.Zero percent until 1200, then 10 percent.
Transport winds.....East 10 to 15 mph.
Mixing Height.......1400-3400 ft agl until 1200, then 4400-6200 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 lower 40s. Winds generally
less than 10 mph.
.MEMORIAL DAY...Partly cloudy. Chance of showers and slight
chance of thunderstorms. Lows in the mid 40s. Highs in the lower
70s. Winds generally less than 10 mph.
.TUESDAY THROUGH WEDNESDAY...Partly cloudy with chance of showers
and thunderstorms. Lows in the upper 40s. Highs 69 to 74. Winds
generally less than 10 mph.
.THURSDAY THROUGH FRIDAY...Mostly clear with slight chance of
showers and thunderstorms. Lows in the upper 40s. Highs 74 to 79.
$$
WYZ285-251100-
South Bighorn Mountains-
259 AM MDT Sat May 24 2025
.TODAY...
Sky/weather.........Mostly cloudy. Chance of showers in the
morning. Slight chance of thunderstorms through
the day. Showers likely in the afternoon.
Chance of precipitation 70 percent.
Chance of thunder...20 percent.
Max temperature.....55-60.
24 hr trend......5 degrees cooler.
Min humidity........59-65 percent.
24 hr trend......34 percent wetter.
20-foot winds.......Upslope/upvalley 5-9 mph until 0900, then
northeast 10 to 15 mph with gusts to around 25
mph.
Ridge top winds.....Northeast around 10 mph until 1200, then around
20 mph.
Chc of wetting rain.15 percent until 1200, then 35 percent.
Transport winds.....Northeast around 10 mph until 1200, then around
20 mph.
Mixing Height.......800-2800 ft agl until 1200, then 2800-4800 ft
agl.
Smoke dispersal.....Poor to fair.
.TONIGHT...
Sky/weather.........Mostly cloudy. Showers likely early in the
evening. Slight chance of thunderstorms until
early morning. Chance of showers in the late
evening and overnight. Chance of precipitation
70 percent.
Chance of thunder...20 percent.
Min temperature.....42-47.
24 hr trend......2 degrees warmer.
Max humidity........85-91 percent.
24 hr trend......3 percent wetter.
Humidity recovery...Excellent.
20-foot winds.......Northeast winds 10 to 15 mph with gusts to
around 25 mph until 2400, then
downslope/downvalley 4-7 mph.
Ridge top winds.....Northeast 10 to 15 mph.
Chc of wetting rain.25 percent until 2400, then 10 percent.
Transport winds.....East 10 to 15 mph.
Mixing Height.......400-2400 ft agl.
Smoke dispersal.....Poor.
.SUNDAY...
Sky/weather.........Partly cloudy then becoming cloudy. Chance of
showers through the day. Slight chance of
thunderstorms in the afternoon. Chance of
precipitation 50 percent.
Chance of thunder...20 percent.
Max temperature.....55-60.
24 hr trend......1 degree cooler.
Min humidity........54-60 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 20 mph.
Ridge top winds.....Northeast 10 to 15 mph.
Chc of wetting rain.10 percent until 1200, then 35 percent.
Transport winds.....East 10 to 15 mph.
Mixing Height.......1400-3400 ft agl.
Smoke dispersal.....Poor.
.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 40s. Southeast winds
around 10 mph.
.MEMORIAL DAY...Partly cloudy with chance of showers and slight
chance of thunderstorms. Lows in the mid 40s. Highs in the lower
60s. South winds around 10 mph.
.TUESDAY...Partly cloudy. Showers likely and chance of
thunderstorms. Lows in the mid 40s. Highs in the mid 60s. North
winds around 10 mph.
.WEDNESDAY...Partly cloudy with chance of showers and
thunderstorms. Lows in the mid 40s. Highs around 60. Northeast
winds around 10 mph.
.THURSDAY...Mostly clear. Chance of showers and slight chance of
thunderstorms. Lows in the upper 40s. Highs in the mid 60s.
.FRIDAY...Mostly sunny. Chance of showers and thunderstorms in
the afternoon. Highs around 70.
$$
WYZ281-251100-
Johnson County/Casper BLM-
Including the cities of Buffalo and Kaycee
259 AM MDT Sat May 24 2025
.TODAY...
Sky/weather.........Cloudy. Patchy fog early in the morning. Chance
of showers in the morning. Slight chance of
thunderstorms through the day. Showers likely
in the afternoon. Chance of precipitation 70
percent.
Chance of thunder...20 percent.
Max temperature.....53-58.
24 hr trend......7 degrees cooler.
Min humidity........72-78 percent.
24 hr trend......34 percent wetter.
20-foot winds.......Upslope/upvalley 5-9 mph until 0900, then
northeast 10 to 15 mph with gusts to around 25
mph.
Ridge top winds.....Northeast around 10 mph until 1200, then around
20 mph.
Chc of wetting rain.30 percent until 1200, then 50 percent.
Transport winds.....East around 10 mph until 1200, then northeast
around 20 mph.
Mixing Height.......1400-3400 ft agl.
Smoke dispersal.....Poor to fair.
.TONIGHT...
Sky/weather.........Mostly cloudy. Chance of showers in the
evening. Slight chance of thunderstorms through
the night. Showers likely after midnight.
Chance of precipitation 70 percent.
Chance of thunder...20 percent.
Min temperature.....42-47.
24 hr trend......Unchanged.
Max humidity........88-94 percent.
24 hr trend......3 percent wetter.
Humidity recovery...Excellent.
20-foot winds.......East winds around 10 mph and gusty until 2400,
then downslope/downvalley 4-7 mph.
Ridge top winds.....East 10 to 15 mph.
Chc of wetting rain.25 percent until 2400, then 5 percent.
Transport winds.....Southeast 10 to 15 mph.
Mixing Height.......800-2600 ft agl.
Smoke dispersal.....Poor.
.SUNDAY...
Sky/weather.........Mostly cloudy. Chance of showers through the
day. Slight chance of thunderstorms in the
afternoon. Chance of precipitation 50 percent.
Chance of thunder...20 percent.
Max temperature.....54-59.
24 hr trend......1 degree cooler.
Min humidity........61-67 percent.
24 hr trend......12 percent drier.
20-foot winds.......Southeast winds around 10 mph with higher
gusts.
Ridge top winds.....Southeast around 15 mph.
Chc of wetting rain.15 percent until 1200, then 25 percent.
Transport winds.....Southeast around 15 mph.
Mixing Height.......1400-3400 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 mid 40s. Southeast winds
around 10 mph.
.MEMORIAL DAY...Partly cloudy with chance of showers and slight
chance of thunderstorms. Lows in the mid 40s. Highs in the mid
60s. Southeast winds around 10 mph.
.TUESDAY THROUGH WEDNESDAY...Partly cloudy with chance of showers
and thunderstorms. Lows in the mid 40s. Highs in the upper 60s.
Winds generally less than 10 mph.
.THURSDAY THROUGH FRIDAY...Mostly clear with slight chance of
showers and thunderstorms. Lows in the upper 40s. Highs 72 to 77.
$$
WYZ282-251100-
South Bighorn Basin/Worland BLM-
Including the cities of Ten Sleep, Thermopolis, and Worland
259 AM MDT Sat May 24 2025
.TODAY...
Sky/weather.........Mostly cloudy. Slight chance of showers in the
morning. Slight chance of thunderstorms in the
late morning and afternoon. Chance of showers
in the afternoon. Chance of precipitation 50
percent.
Chance of thunder...20 percent.
Max temperature.....58-63.
24 hr trend......2 degrees cooler.
Min humidity........49-55 percent.
24 hr trend......18 percent wetter.
20-foot winds.......Upslope/upvalley 5-9 mph until 1200, then north
around 10 mph. Gusts up to 20 mph.
Ridge top winds.....North 10 to 15 mph.
Chc of wetting rain.7 percent.
Transport winds.....Northwest 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 cloudy then becoming partly cloudy.
Slight chance of thunderstorms in the evening.
Chance of showers until early morning, then
slight chance of showers early in the morning.
Patchy fog early in the morning. Chance of
precipitation 50 percent.
Chance of thunder...20 percent.
Min temperature.....41-46.
24 hr trend......2 degrees warmer.
Max humidity........83-89 percent.
24 hr trend......8 percent wetter.
Humidity recovery...Excellent.
20-foot winds.......Northeast winds around 10 mph and gusty until
2100, then downslope/downvalley 4-7 mph.
Ridge top winds.....Northeast around 15 mph until 2400, then south.
Chc of wetting rain.Less than 5 percent.
Transport winds.....East around 15 mph until 2400, then south.
Mixing Height.......1600-3600 ft agl until 2400, then 400-800 ft
agl.
Smoke dispersal.....Poor.
.SUNDAY...
Sky/weather.........Partly cloudy then becoming mostly cloudy.
Chance of showers through the day. Slight
chance of thunderstorms in the afternoon.
Chance of precipitation 50 percent.
Chance of thunder...20 percent.
Max temperature.....58-63.
24 hr trend......Unchanged.
Min humidity........43-49 percent.
24 hr trend......7 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph. Gusts up to 15 mph.
Ridge top winds.....Northeast around 10 mph.
Chc of wetting rain.Zero percent until 1200, then 10 percent.
Transport winds.....Southeast around 10 mph.
Mixing Height.......1600-3600 ft agl until 1200, then 5200-6800 ft
agl.
Smoke dispersal.....Poor to fair.
.Forecast days 3 through 7......
.SUNDAY NIGHT...Mostly clear. Chance of showers and slight chance
of thunderstorms in the evening. Lows in the mid 40s. Winds
generally less than 10 mph.
.MEMORIAL DAY...Warmer. Mostly clear. Chance of showers and
slight chance of thunderstorms. Lows in the upper 40s. Highs in
the lower 70s. Winds generally less than 10 mph.
.TUESDAY THROUGH WEDNESDAY...Partly cloudy with chance of showers
and thunderstorms. Lows in the upper 40s. Highs 69 to 74. Winds
generally less than 10 mph.
.THURSDAY...Mostly clear. Slight chance of showers and
thunderstorms. Lows around 50. Highs in the mid 70s.
.FRIDAY...Mostly sunny. Chance of showers and slight chance of
thunderstorms in the afternoon. Highs in the upper 70s.
$$
WYZ275-251100-
North Bighorn Basin/Worland BLM-
Including the cities of Greybull, Lovell, and Powell
259 AM MDT Sat May 24 2025
.TODAY...
Sky/weather.........Mostly cloudy. Chance of showers and slight
chance of thunderstorms through the day. Chance
of precipitation 50 percent.
Chance of thunder...20 percent.
Max temperature.....58-63.
24 hr trend......2 degrees cooler.
Min humidity........49-55 percent.
24 hr trend......16 percent wetter.
20-foot winds.......Upslope/upvalley 5-9 mph until 0900, then
northwest 10 to 15 mph. Gusts up to 25 mph.
Ridge top winds.....Northwest around 15 mph.
Chc of wetting rain.5 percent.
Transport winds.....Northwest around 15 mph.
Mixing Height.......1600-3600 ft agl until 1200, then 5000-6600 ft
agl.
Smoke dispersal.....Fair to good.
.TONIGHT...
Sky/weather.........Partly cloudy. Slight chance of thunderstorms
in the evening. Slight chance of showers
through the night. Chance of precipitation 20
percent.
Chance of thunder...20 percent.
Min temperature.....41-46.
24 hr trend......1 degree warmer.
Max humidity........82-88 percent.
24 hr trend......6 percent wetter.
Humidity recovery...Excellent.
20-foot winds.......North winds around 10 mph and gusty until 2400,
then downslope/downvalley 4-7 mph.
Ridge top winds.....Northwest 10 to 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....North around 15 mph until 2400, then southeast.
Mixing Height.......2000-4000 ft agl until 2400, then 400-800 ft
agl.
Smoke dispersal.....Poor.
.SUNDAY...
Sky/weather.........Partly cloudy then becoming mostly cloudy.
Slight chance of showers in the morning, then
chance of showers and slight chance of
thunderstorms in the afternoon. Chance of
precipitation 50 percent.
Chance of thunder...20 percent.
Max temperature.....57-62.
24 hr trend......1 degree warmer.
Min humidity........43-49 percent.
24 hr trend......8 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph. Gusts up to 15 mph.
Ridge top winds.....North around 10 mph.
Chc of wetting rain.Less than 5 percent.
Transport winds.....South around 10 mph until 1200, then east.
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...Mostly clear. Slight chance of showers and
thunderstorms in the evening. Lows in the mid 40s. Winds
generally less than 10 mph.
.MEMORIAL DAY...Warmer. Mostly clear. Chance of showers and
slight chance of thunderstorms. Lows in the upper 40s. Highs in
the lower 70s. 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.
Northwest winds around 10 mph.
.WEDNESDAY...Mostly clear with chance of showers and slight
chance of thunderstorms. Lows in the upper 40s. Highs in the
lower 70s. Winds generally less than 10 mph.
.THURSDAY THROUGH FRIDAY...Mostly clear with slight chance of
showers and thunderstorms. Lows in the lower 50s. Highs 76 to 81.
$$
WYZ276-251100-
Cody Foothills-
Including the cities of Clark, Cody, and Meeteetse
259 AM MDT Sat May 24 2025
.TODAY...
Sky/weather.........Mostly cloudy. Slight chance of showers late in
the morning. Chance of showers late in the
morning. Slight chance of thunderstorms in the
afternoon. Chance of precipitation 50 percent.
Chance of thunder...20 percent.
Max temperature.....58-63.
24 hr trend......2 degrees cooler.
Min humidity........50-56 percent.
24 hr trend......16 percent wetter.
20-foot winds.......Upslope/upvalley 5-9 mph until 0900, then north
10 to 15 mph. Gusts up to 25 mph.
Ridge top winds.....North 15 to 20 mph.
Chc of wetting rain.5 percent until 1200, then 25 percent.
Transport winds.....North 15 to 20 mph.
Mixing Height.......1600-3600 ft agl until 1200, then 4200-5400 ft
agl.
Smoke dispersal.....Fair to good.
.TONIGHT...
Sky/weather.........Partly cloudy. Slight chance of showers and
thunderstorms in the evening. Chance of
precipitation 20 percent.
Chance of thunder...20 percent.
Min temperature.....41-46.
24 hr trend......2 degrees warmer.
Max humidity........75-81 percent.
24 hr trend......3 percent wetter.
Humidity recovery...Excellent.
20-foot winds.......North winds around 10 mph with gusts to around
25 mph until 2100, then downslope/downvalley
4-7 mph.
Ridge top winds.....North around 15 mph until 2400, then west.
Chc of wetting rain.Zero percent.
Transport winds.....North around 15 mph until 2400, then west.
Mixing Height.......1600-3600 ft agl until 2400, then 600-1000 ft
agl.
Smoke dispersal.....Poor.
.SUNDAY...
Sky/weather.........Partly cloudy then becoming mostly cloudy.
Chance of showers and slight chance of
thunderstorms in the afternoon. Chance of
precipitation 50 percent.
Chance of thunder...20 percent.
Max temperature.....60-65.
24 hr trend......3 degrees warmer.
Min humidity........39-45 percent.
24 hr trend......11 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph until 1200, then
northeast around 10 mph. Gusts up to 15 mph.
Ridge top winds.....Northeast 10 to 15 mph.
Chc of wetting rain.Zero percent until 1200, then 10 percent.
Transport winds.....East 10 to 15 mph.
Mixing Height.......1600-3600 ft agl until 1200, then 4800-6400 ft
agl.
Smoke dispersal.....Poor to fair.
.Forecast days 3 through 7......
.SUNDAY NIGHT...Mostly clear. Slight chance of showers and
thunderstorms in the evening. Lows in the mid 40s. Winds
generally less than 10 mph.
.MEMORIAL DAY...Partly cloudy. Chance of showers and slight
chance of thunderstorms. Lows in the upper 40s. Highs in the
upper 60s. Winds generally less than 10 mph.
.TUESDAY THROUGH WEDNESDAY...Partly cloudy with chance of showers
and thunderstorms. Lows in the upper 40s. Highs in the upper 60s.
North winds around 10 mph.
.THURSDAY...Mostly clear. Slight chance of showers and
thunderstorms. Lows in the lower 50s. Highs in the lower 70s.
.FRIDAY...Mostly sunny. Chance of showers and slight chance of
thunderstorms in the afternoon. Highs in the mid 70s.
$$
WYZ287-251100-
Owl Creek Mountains-
259 AM MDT Sat May 24 2025
.TODAY...
Sky/weather.........Mostly cloudy. Chance of showers in the
morning, then showers likely and slight chance
of thunderstorms in the afternoon. Chance of
precipitation 70 percent.
Chance of thunder...20 percent.
Max temperature.....56-61.
24 hr trend......2 degrees cooler.
Min humidity........54-60 percent.
24 hr trend......19 percent wetter.
20-foot winds.......Upslope/upvalley 5-9 mph until 0900, then
northeast 10 to 15 mph with gusts to around 25
mph.
Ridge top winds.....North around 10 mph until 1200, then northeast
around 20 mph.
Chc of wetting rain.5 percent until 1200, then 40 percent.
Transport winds.....North around 10 mph until 1200, then around 20
mph.
Mixing Height.......1000-3000 ft agl until 1200, then 3400-5200 ft
agl.
Smoke dispersal.....Poor to fair.
.TONIGHT...
Sky/weather.........Mostly cloudy. Chance of showers and slight
chance of thunderstorms in the evening, then
slight chance of showers after midnight. Chance
of precipitation 50 percent.
Chance of thunder...20 percent.
Min temperature.....42-47.
24 hr trend......2 degrees warmer.
Max humidity........83-89 percent.
24 hr trend......8 percent wetter.
Humidity recovery...Excellent.
20-foot winds.......North winds 10 to 15 mph with gusts to around
25 mph until 2400, then downslope/downvalley
4-7 mph.
Ridge top winds.....Northwest 10 to 15 mph.
Chc of wetting rain.20 percent until 2400, then zero percent.
Transport winds.....North around 15 mph until 2400, then southwest.
Mixing Height.......1000-3000 ft agl until 2400, then 200-800 ft
agl.
Smoke dispersal.....Poor.
.SUNDAY...
Sky/weather.........Partly cloudy then becoming mostly cloudy.
Chance of showers and slight chance of
thunderstorms in the afternoon. Chance of
precipitation 50 percent.
Chance of thunder...20 percent.
Max temperature.....55-60.
24 hr trend......Unchanged.
Min humidity........48-54 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.....Northeast 10 to 15 mph.
Chc of wetting rain.Zero percent until 1200, then 20 percent.
Transport winds.....Southeast 10 to 15 mph.
Mixing Height.......1200-3200 ft agl until 1200, then 3600-5600 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. Lows in the lower 40s.
Winds generally less than 10 mph.
.MEMORIAL DAY...Partly cloudy. Chance of showers and slight
chance of thunderstorms. Lows in the upper 40s. Highs in the mid
60s. Winds generally less than 10 mph.
.TUESDAY...Partly cloudy. Showers likely and chance of
thunderstorms. Lows in the upper 40s. Highs in the mid 60s. North
winds around 10 mph.
.WEDNESDAY...Partly cloudy with chance of showers and
thunderstorms. Lows in the mid 40s. Highs in the mid 60s. Winds
generally less than 10 mph.
.THURSDAY...Mostly clear. Chance of showers and slight chance of
thunderstorms. Lows in the upper 40s. Highs in the upper 60s.
.FRIDAY...Mostly sunny. Chance of showers and thunderstorms in
the afternoon. Highs in the lower 70s.
$$
WYZ286-251100-
Absaroka Mountains/North Shoshone NF-
Including the city of Pahaska
259 AM MDT Sat May 24 2025
.TODAY...
Sky/weather.........Mostly cloudy. Chance of showers and slight
chance of snow showers in the morning, then
showers likely and slight chance of
thunderstorms in the afternoon. No snow
accumulation. Chance of precipitation 70
percent.
Chance of thunder...20 percent.
Max temperature.....51-56.
24 hr trend......4 degrees cooler.
Min humidity........57-63 percent.
24 hr trend......26 percent wetter.
20-foot winds.......Upslope/upvalley 5-9 mph until 1200, then
northeast around 10 mph. Gusts up to 15 mph.
Ridge top winds.....West around 10 mph until 1200, then northeast.
Chc of wetting rain.10 percent until 1200, then 45 percent.
Transport winds.....Southeast around 10 mph until 1200, then
northwest.
Mixing Height.......2200-4200 ft agl.
Smoke dispersal.....Poor to fair.
.TONIGHT...
Sky/weather.........Mostly cloudy then becoming partly cloudy.
Chance of showers, slight chance of
thunderstorms and snow showers in the evening.
Chance of precipitation 50 percent.
Chance of thunder...20 percent.
Min temperature.....35-40.
24 hr trend......3 degrees warmer.
Max humidity........80-86 percent.
24 hr trend......2 percent wetter.
Humidity recovery...Excellent.
20-foot winds.......Northeast winds around 10 mph until 2100, then
downslope/downvalley 4-7 mph. Gusts up to 15
mph.
Ridge top winds.....Northeast around 10 mph until 2400, then west.
Chc of wetting rain.10 percent until 2400, then zero percent.
Transport winds.....East around 10 mph until 2400, then southeast.
Mixing Height.......800-2800 ft agl.
Smoke dispersal.....Poor.
.SUNDAY...
Sky/weather.........Partly cloudy then becoming mostly cloudy.
Chance of showers and slight chance of
thunderstorms in the afternoon. Chance of
precipitation 50 percent.
Chance of thunder...20 percent.
Max temperature.....52-57.
24 hr trend......1 degree warmer.
Min humidity........51-57 percent.
24 hr trend......10 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.....East 10 to 15 mph.
Chc of wetting rain.Zero percent until 1200, then 20 percent.
Transport winds.....East 10 to 15 mph.
Mixing Height.......1400-3400 ft agl until 1200, then 3400-5400 ft
agl.
Smoke dispersal.....Poor to fair.
.Forecast days 3 through 7......
.SUNDAY NIGHT...Mostly clear. Chance of showers and slight chance
of thunderstorms in the evening. Lows in the mid 30s. Winds
generally less than 10 mph.
.MEMORIAL DAY...Partly cloudy. Chance of showers and slight
chance of thunderstorms. Lows around 40. Highs around 60. Winds
generally less than 10 mph.
.TUESDAY...Partly cloudy with showers likely and chance of
thunderstorms. Lows in the upper 30s. Highs in the upper 50s.
Winds generally less than 10 mph.
.WEDNESDAY...Partly cloudy with chance of showers and slight
chance of thunderstorms. Lows around 40. Highs in the upper 50s.
Winds generally less than 10 mph.
.THURSDAY THROUGH FRIDAY...Mostly clear with chance of showers
and slight chance of thunderstorms. Lows in the lower 40s. Highs
in the mid 60s.
$$
WYZ140-251100-
Yellowstone National Park-
Including the cities of Lake, Mammoth, and Old Faithful
259 AM MDT Sat May 24 2025
.TODAY...
Sky/weather.........Partly cloudy. Patchy fog early in the morning.
Slight chance of showers in the morning, then
chance of showers and slight chance of
thunderstorms in the afternoon. Chance of
precipitation 50 percent.
Chance of thunder...20 percent.
Max temperature.....56-61.
24 hr trend......2 degrees warmer.
Min humidity........40-46 percent.
24 hr trend......10 percent wetter.
20-foot winds.......Upslope/upvalley 5-9 mph. Gusts up to 15 mph.
Ridge top winds.....North around 10 mph.
Chc of wetting rain.Less than 5 percent.
Transport winds.....Northeast around 10 mph until 1200, then
northwest.
Mixing Height.......1800-3800 ft agl until 1200, then 5000-7000 ft
agl.
Smoke dispersal.....Poor to fair.
.TONIGHT...
Sky/weather.........Partly cloudy. Slight chance of showers and
thunderstorms early in the evening. Patchy fog
early in the morning. Chance of precipitation
20 percent.
Chance of thunder...20 percent.
Min temperature.....33-38.
24 hr trend......3 degrees warmer.
Max humidity........83-89 percent.
24 hr trend......Unchanged.
Humidity recovery...Excellent.
20-foot winds.......Downslope/downvalley 4-7 mph. Gusts up to 15
mph.
Ridge top winds.....Northeast around 10 mph.
Chc of wetting rain.Zero percent.
Transport winds.....East around 10 mph.
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.
Chance of thunder...0 percent.
Max temperature.....57-62.
24 hr trend......3 degrees warmer.
Min humidity........30-36 percent.
24 hr trend......10 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph. Gusts up to 10 mph.
Ridge top winds.....East around 10 mph until 1200, then north.
Chc of wetting rain.Zero percent.
Transport winds.....East around 10 mph.
Mixing Height.......1600-3600 ft agl until 1200, then 5800-7800 ft
agl.
Smoke dispersal.....Poor to fair.
.Forecast days 3 through 7......
.SUNDAY NIGHT...Mostly clear. Lows in the mid 30s. Winds
generally less than 10 mph.
.MEMORIAL DAY...Partly cloudy. Chance of showers and slight
chance of thunderstorms. Lows in the upper 30s. Highs in the mid
60s. Winds generally less than 10 mph.
.TUESDAY...Partly cloudy with showers likely and chance of
thunderstorms. Lows in the upper 30s. Highs in the lower 60s.
Winds generally less than 10 mph.
.WEDNESDAY...Partly cloudy with chance of showers and slight
chance of thunderstorms. Lows in the upper 30s. Highs in the
lower 60s. Winds generally less than 10 mph.
.THURSDAY...Mostly clear. Chance of showers. Lows in the lower
40s. Highs in the upper 60s.
.FRIDAY...Mostly sunny. Chance of showers and slight chance of
thunderstorms in the afternoon. Highs in the upper 60s.
$$
WYZ415-251100-
North Zone Bridger Teton NF and Grand Teton NP-
Including the cities of Jackson and Moran
259 AM MDT Sat May 24 2025
.TODAY...
Sky/weather.........Partly cloudy. Slight chance of showers in the
morning. Chance of showers and slight chance of
thunderstorms in the afternoon. Chance of
precipitation 50 percent.
Chance of thunder...20 percent.
Max temperature.....58-63.
24 hr trend......3 degrees warmer.
Min humidity........37-43 percent.
24 hr trend......8 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.......2000-4000 ft agl until 1200, then 5400-7400 ft
agl.
Smoke dispersal.....Poor to fair.
.TONIGHT...
Sky/weather.........Partly cloudy. Slight chance of showers and
thunderstorms in the evening. Chance of
precipitation 20 percent.
Chance of thunder...20 percent.
Min temperature.....32-37.
24 hr trend......2 degrees warmer.
Max humidity........81-87 percent.
24 hr trend......15 percent wetter.
Humidity recovery...Excellent.
20-foot winds.......Downslope/downvalley 4-7 mph. Gusts up to 15
mph.
Ridge top winds.....North around 10 mph until 2400, then east.
Chc of wetting rain.Zero percent.
Transport winds.....Northeast around 10 mph until 2400, then east.
Mixing Height.......2000-4000 ft agl until 2400, then 400-1000 ft
agl.
Smoke dispersal.....Poor.
.SUNDAY...
Sky/weather.........Partly cloudy. Slight chance of showers and
thunderstorms in the afternoon. Chance of
precipitation 20 percent.
Chance of thunder...20 percent.
Max temperature.....57-62.
24 hr trend......1 degree cooler.
Min humidity........36-42 percent.
24 hr trend......1 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph. Gusts up to 10 mph.
Ridge top winds.....East around 10 mph until 1200, then northwest.
Chc of wetting rain.Less than 5 percent.
Transport winds.....East around 10 mph.
Mixing Height.......1600-3600 ft agl until 1200, then 5000-7000 ft
agl.
Smoke dispersal.....Poor to fair.
.Forecast days 3 through 7......
.SUNDAY NIGHT...Mostly clear. Slight chance of showers and
thunderstorms in the evening. Lows in the mid 30s. Winds
generally less than 10 mph.
.MEMORIAL DAY...Partly cloudy. Chance of showers and slight
chance of thunderstorms. Lows in the upper 30s. Highs in the
lower 60s. Winds generally less than 10 mph.
.TUESDAY THROUGH WEDNESDAY...Partly cloudy with chance of showers
and slight chance of thunderstorms. Lows 36 to 41. Highs in the
lower 60s. Winds generally less than 10 mph.
.THURSDAY...Mostly clear. Chance of showers and slight chance of
thunderstorms. Lows in the lower 40s. Highs in the mid 60s.
.FRIDAY...Mostly sunny. Chance of showers and slight chance of
thunderstorms in the afternoon. Highs in the upper 60s.
$$
WYZ416-251100-
West Wind River Mountains/East Zone Bridger Teton NF-
259 AM MDT Sat May 24 2025
.TODAY...
Sky/weather.........Mostly cloudy. Slight chance of showers late in
the morning. Chance of showers late in the
morning. Slight chance of thunderstorms in the
afternoon. Chance of precipitation 50 percent.
Chance of thunder...20 percent.
Max temperature.....55-60.
24 hr trend......Unchanged.
Min humidity........37-43 percent.
24 hr trend......12 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.....Southwest 10 to 15 mph.
Chc of wetting rain.Zero percent until 1200, then 10 percent.
Transport winds.....Southwest 10 to 15 mph.
Mixing Height.......2400-4400 ft agl until 1200, then 5600-7600 ft
agl.
Smoke dispersal.....Fair to good.
.TONIGHT...
Sky/weather.........Mostly cloudy then becoming partly cloudy.
Chance of showers early in the evening. Slight
chance of thunderstorms in the evening. Slight
chance of showers in the late evening and
overnight. Chance of precipitation 50 percent.
Chance of thunder...20 percent.
Min temperature.....32-37.
24 hr trend......Unchanged.
Max humidity........82-88 percent.
24 hr trend......19 percent wetter.
Humidity recovery...Excellent.
20-foot winds.......Downslope/downvalley 4-7 mph. Gusts up to 15
mph.
Ridge top winds.....Northeast around 10 mph.
Chc of wetting rain.10 percent until 2400, then zero percent.
Transport winds.....Northeast 10 to 15 mph.
Mixing Height.......1800-3800 ft agl until 2400, then 400-800 ft
agl.
Smoke dispersal.....Poor.
.SUNDAY...
Sky/weather.........Partly cloudy then becoming mostly cloudy.
Chance of showers and slight chance of
thunderstorms in the afternoon. Chance of
precipitation 50 percent.
Chance of thunder...20 percent.
Max temperature.....51-56.
24 hr trend......3 degrees cooler.
Min humidity........46-52 percent.
24 hr trend......7 percent wetter.
20-foot winds.......Upslope/upvalley 5-9 mph. Gusts up to 15 mph.
Ridge top winds.....North around 10 mph until 1200, then west.
Chc of wetting rain.Zero percent until 1200, then 30 percent.
Transport winds.....Northeast around 10 mph.
Mixing Height.......1600-3600 ft agl until 1200, then 4000-6000 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. Lows in the lower 30s.
Winds generally less than 10 mph.
.MEMORIAL DAY THROUGH TUESDAY...Partly cloudy with chance of
showers and slight chance of thunderstorms. Lows in the mid 30s.
Highs in the upper 50s. Winds generally less than 10 mph.
.WEDNESDAY...Partly cloudy with chance of showers and slight
chance of thunderstorms. Lows in the mid 30s. Highs in the upper
50s. Winds generally less than 10 mph.
.THURSDAY THROUGH FRIDAY...Mostly clear with chance of showers
and slight chance of thunderstorms. Lows in the upper 30s. Highs
60 to 65.
$$
WYZ288-251100-
East Wind River Mountains/South Shoshone NF-
Including the cities of Dubois and South Pass
259 AM MDT Sat May 24 2025
.TODAY...
Sky/weather.........Partly cloudy then becoming mostly cloudy.
Chance of showers in the morning, then showers
likely and slight chance of thunderstorms in
the afternoon. Chance of precipitation 70
percent.
Chance of thunder...20 percent.
Max temperature.....55-60.
24 hr trend......4 degrees cooler.
Min humidity........43-49 percent.
24 hr trend......25 percent wetter.
20-foot winds.......Upslope/upvalley 5-9 mph until 0900, then north
around 10 mph. Gusts up to 20 mph.
Ridge top winds.....North 10 to 15 mph.
Chc of wetting rain.Zero percent until 1200, then 30 percent.
Transport winds.....West 10 to 15 mph.
Mixing Height.......1600-3600 ft agl until 1200, then 3800-5800 ft
agl.
Smoke dispersal.....Poor to fair.
.TONIGHT...
Sky/weather.........Mostly cloudy. Showers likely with possible
snow showers and thunderstorms in the evening,
then slight chance of showers after midnight.
No snow accumulation. Chance of precipitation
70 percent.
Chance of thunder...20 percent.
Min temperature.....34-39.
24 hr trend......1 degree warmer.
Max humidity........86-92 percent.
24 hr trend......12 percent wetter.
Humidity recovery...Excellent.
20-foot winds.......Northeast winds around 10 mph until 2400, then
downslope/downvalley 4-7 mph. Gusts up to 15
mph.
Ridge top winds.....North 10 to 15 mph.
Chc of wetting rain.40 percent until 2400, then 5 percent.
Transport winds.....Northeast 10 to 15 mph.
Mixing Height.......800-2800 ft agl.
Smoke dispersal.....Poor.
.SUNDAY...
Sky/weather.........Partly cloudy then becoming cloudy. Showers
likely and slight chance of thunderstorms in
the afternoon. Chance of precipitation 60
percent.
Chance of thunder...20 percent.
Max temperature.....50-55.
24 hr trend......4 degrees cooler.
Min humidity........50-56 percent.
24 hr trend......3 percent wetter.
20-foot winds.......Upslope/upvalley 5-9 mph until 0900, then
northeast around 10 mph. Gusts up to 15 mph.
Ridge top winds.....Northeast 10 to 15 mph.
Chc of wetting rain.Zero percent until 1200, then 35 percent.
Transport winds.....Northeast 10 to 15 mph.
Mixing Height.......800-2800 ft agl until 1200, then 2800-4800 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. Lows in the upper 30s.
Winds generally less than 10 mph.
.MEMORIAL DAY...Partly cloudy with chance of showers and slight
chance of thunderstorms. Lows around 40. Highs in the upper 50s.
Winds generally less than 10 mph.
.TUESDAY...Partly cloudy with showers likely and chance of
thunderstorms. Lows around 40. Highs in the lower 60s. Northwest
winds around 10 mph.
.WEDNESDAY...Partly cloudy with chance of showers and slight
chance of thunderstorms. Lows around 40. Highs in the upper 50s.
Winds generally less than 10 mph.
.THURSDAY THROUGH FRIDAY...Mostly clear with chance of showers
and slight chance of thunderstorms. Lows in the lower 40s. Highs
62 to 67.
$$
WYZ414-251100-
Salt and Wyoming Ranges/West Zone Bridger Teton NF-
Including the city of Afton
259 AM MDT Sat May 24 2025
.TODAY...
Sky/weather.........Partly cloudy. Slight chance of showers in the
morning, then chance of showers and slight
chance of thunderstorms in the afternoon.
Chance of precipitation 50 percent.
Chance of thunder...20 percent.
Max temperature.....60-65.
24 hr trend......2 degrees warmer.
Min humidity........31-37 percent.
24 hr trend......6 percent wetter.
20-foot winds.......Upslope/upvalley 5-9 mph until 1200, 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.....South around 10 mph until 1200, then west.
Mixing Height.......2600-4600 ft agl until 1200, then 7200-9200 ft
agl.
Smoke dispersal.....Poor to fair 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.....35-40.
24 hr trend......Unchanged.
Max humidity........80-86 percent.
24 hr trend......25 percent wetter.
Humidity recovery...Excellent.
20-foot winds.......Northwest winds around 10 mph until 2100, then
downslope/downvalley 4-7 mph. Gusts up to 20
mph.
Ridge top winds.....North around 10 mph until 2400, then east.
Chc of wetting rain.Zero percent.
Transport winds.....North around 15 mph until 2400, then southeast.
Mixing Height.......2800-4800 ft agl until 2400, then 400-1000 ft
agl.
Smoke dispersal.....Poor.
.SUNDAY...
Sky/weather.........Partly cloudy then becoming mostly cloudy.
Chance of showers and slight chance of
thunderstorms in the afternoon. Chance of
precipitation 50 percent.
Chance of thunder...20 percent.
Max temperature.....57-62.
24 hr trend......2 degrees cooler.
Min humidity........38-44 percent.
24 hr trend......6 percent wetter.
20-foot winds.......Upslope/upvalley 5-9 mph. Gusts up to 15 mph.
Ridge top winds.....Southeast around 10 mph until 1200, then west.
Chc of wetting rain.Zero percent until 1200, then 20 percent.
Transport winds.....Southeast around 10 mph until 1200, then
northwest.
Mixing Height.......1800-3800 ft agl until 1200, then 4000-6000 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. Lows in the upper 30s.
Winds generally less than 10 mph.
.MEMORIAL DAY THROUGH TUESDAY...Partly cloudy with chance of
showers and slight chance of thunderstorms. Lows around 40. Highs
in the lower 60s. Winds generally less than 10 mph.
.WEDNESDAY...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.
.THURSDAY...Mostly clear. Chance of showers and slight chance of
thunderstorms. Lows in the lower 40s. Highs in the mid 60s.
.FRIDAY...Mostly sunny. Slight chance of showers and
thunderstorms in the afternoon. Highs in the upper 60s.
$$
WYZ278-251100-
Upper Green River Basin/Rock Springs BLM-
Including the cities of Big Piney, Farson, and Pinedale
259 AM MDT Sat May 24 2025
.TODAY...
Sky/weather.........Mostly cloudy. Slight chance of showers late in
the morning. Slight chance of thunderstorms in
the afternoon. Chance of showers in the
afternoon. Chance of precipitation 50 percent.
Chance of thunder...20 percent.
Max temperature.....62-67.
24 hr trend......Unchanged.
Min humidity........25-31 percent.
24 hr trend......10 percent wetter.
20-foot winds.......Upslope/upvalley 5-9 mph until 1200, then west
around 10 mph. Gusts up to 20 mph.
Ridge top winds.....North around 10 mph until 1200, then west.
Chc of wetting rain.Less than 5 percent.
Transport winds.....West 10 to 15 mph.
Mixing Height.......2800-4800 ft agl until 1200, then 8600-10600 ft
agl.
Smoke dispersal.....Poor to fair 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 in the evening. Slight
chance of showers late in the evening. Chance
of precipitation 50 percent.
Chance of thunder...20 percent.
Min temperature.....36-41.
24 hr trend......1 degree cooler.
Max humidity........83-89 percent.
24 hr trend......27 percent wetter.
Humidity recovery...Excellent.
20-foot winds.......North winds around 10 mph until 2100, then
northeast until 0300, then downslope/downvalley
4-7 mph. Gusts up to 15 mph.
Ridge top winds.....Northeast 10 to 15 mph.
Chc of wetting rain.Less than 5 percent.
Transport winds.....East around 15 mph.
Mixing Height.......2800-4800 ft agl until 2400, then 600-1000 ft
agl.
Smoke dispersal.....Poor to fair.
.SUNDAY...
Sky/weather.........Partly cloudy then becoming mostly cloudy.
Chance of showers and slight chance of
thunderstorms in the afternoon. Chance of
precipitation 50 percent.
Chance of thunder...20 percent.
Max temperature.....59-64.
24 hr trend......3 degrees cooler.
Min humidity........34-40 percent.
24 hr trend......5 percent wetter.
20-foot winds.......Upslope/upvalley 5-9 mph until 1500, then west
around 10 mph. Gusts up to 15 mph.
Ridge top winds.....Northeast around 10 mph until 1200, then south.
Chc of wetting rain.Zero percent until 1200, then 20 percent.
Transport winds.....East around 10 mph until 1200, then south.
Mixing Height.......1800-3800 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. Lows in the upper 30s.
Winds generally less than 10 mph.
.MEMORIAL DAY THROUGH TUESDAY...Partly cloudy with chance of
showers and slight chance of thunderstorms. Lows around 40. Highs
66 to 71. Northwest winds around 10 mph.
.WEDNESDAY...Partly cloudy with chance of showers and slight
chance of thunderstorms. Lows in the lower 40s. Highs in the
upper 60s. Winds generally less than 10 mph.
.THURSDAY THROUGH FRIDAY...Mostly clear with slight chance of
showers and thunderstorms. Lows in the lower 40s. Highs 71 to 76.
$$
WYZ277-251100-
Lincoln and Uinta Counties/Lower Elevations-
Including the cities of Evanston, Fort Bridger, and Kemmerer
259 AM MDT Sat May 24 2025
.TODAY...
Sky/weather.........Mostly cloudy 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.....63-68.
24 hr trend......Unchanged.
Min humidity........26-32 percent.
24 hr trend......8 percent wetter.
20-foot winds.......Upslope/upvalley 5-9 mph until 1200, then
northwest around 10 mph. Gusts up to 20 mph.
Ridge top winds.....Northeast around 10 mph until 1200, then
northwest.
Chc of wetting rain.Zero percent.
Transport winds.....Southeast around 10 mph until 1200, then west.
Mixing Height.......1800-3800 ft agl until 1200, then 8000-10000 ft
agl.
Smoke dispersal.....Poor until 1200, then good to very good.
.TONIGHT...
Sky/weather.........Mostly cloudy then becoming partly cloudy.
Slight chance of showers and thunderstorms
early in the evening. Chance of precipitation
20 percent.
Chance of thunder...20 percent.
Min temperature.....37-42.
24 hr trend......2 degrees cooler.
Max humidity........81-87 percent.
24 hr trend......30 percent wetter.
Humidity recovery...Excellent.
20-foot winds.......Northwest winds around 10 mph until 2100, then
downslope/downvalley 4-7 mph. Gusts up to 15
mph.
Ridge top winds.....North around 10 mph until 2400, then east.
Chc of wetting rain.Zero percent.
Transport winds.....East around 15 mph.
Mixing Height.......2800-4800 ft agl until 2400, then 400-1000 ft
agl.
Smoke dispersal.....Poor to fair.
.SUNDAY...
Sky/weather.........Partly cloudy then becoming mostly cloudy.
Chance of showers and slight chance of
thunderstorms in the afternoon. Chance of
precipitation 40 percent.
Chance of thunder...20 percent.
Max temperature.....59-64.
24 hr trend......2 degrees cooler.
Min humidity........34-40 percent.
24 hr trend......5 percent wetter.
20-foot winds.......East winds around 10 mph until 1200, then
upslope/upvalley 5-9 mph. Gusts up to 15 mph.
Ridge top winds.....East 10 to 15 mph.
Chc of wetting rain.Zero percent until 1200, then 20 percent.
Transport winds.....East around 15 mph until 1200, then south.
Mixing Height.......1400-3400 ft agl until 1200, then 4800-6800 ft
agl.
Smoke dispersal.....Poor to fair.
.Forecast days 3 through 7......
.SUNDAY NIGHT...Partly cloudy. Slight chance of showers and
thunderstorms in the evening. Lows in the upper 30s. Winds
generally less than 10 mph.
.MEMORIAL DAY...Partly cloudy. Slight chance of showers and
thunderstorms. Lows in the lower 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 lower 40s. Highs
in the upper 60s. East winds around 10 mph.
.THURSDAY THROUGH FRIDAY...Mostly clear with slight chance of
showers and thunderstorms. Lows in the mid 40s. Highs 71 to 76.
$$
WYZ279-251100-
Sweetwater County/Rock Springs BLM/Flaming Gorge NRA-
Including the cities of Green River, Rock Springs, and Wamsutter
259 AM MDT Sat May 24 2025
.TODAY...
Sky/weather.........Partly cloudy then becoming mostly cloudy.
Chance of showers and slight chance of
thunderstorms in the afternoon. Chance of
precipitation 50 percent.
Chance of thunder...20 percent.
Max temperature.....67-72.
24 hr trend......2 degrees cooler.
Min humidity........23-29 percent.
24 hr trend......10 percent wetter.
20-foot winds.......Northeast winds around 10 mph with gusts to
around 25 mph until 1500, then northwest with
gusts to around 25 mph.
Ridge top winds.....Northeast around 15 mph until 1200, then
northwest.
Chc of wetting rain.Zero percent until 1200, then 10 percent.
Transport winds.....Northeast around 15 mph until 1200, then west.
Mixing Height.......2200-4200 ft agl until 1200, then 7400-9400 ft
agl.
Smoke dispersal.....Poor to fair until 1200, then very good.
.TONIGHT...
Sky/weather.........Mostly cloudy then becoming partly cloudy.
Slight chance of thunderstorms in the evening.
Slight chance of showers through the night.
Chance of precipitation 20 percent.
Chance of thunder...20 percent.
Min temperature.....42-47.
24 hr trend......1 degree cooler.
Max humidity........78-84 percent.
24 hr trend......23 percent wetter.
Humidity recovery...Excellent.
20-foot winds.......North winds 10 to 15 mph until 2400, then
northeast. Gusts up to 20 mph.
Ridge top winds.....Northeast around 15 mph.
Chc of wetting rain.Less than 5 percent.
Transport winds.....Northeast 15 to 20 mph.
Mixing Height.......1600-3600 ft agl until 2400, then 600-1200 ft
agl.
Smoke dispersal.....Poor.
.SUNDAY...
Sky/weather.........Partly cloudy then becoming mostly cloudy.
Slight chance of showers in the morning, then
chance of showers and slight chance of
thunderstorms in the afternoon. Chance of
precipitation 50 percent.
Chance of thunder...20 percent.
Max temperature.....62-67.
24 hr trend......4 degrees cooler.
Min humidity........30-36 percent.
24 hr trend......7 percent wetter.
20-foot winds.......Northeast winds around 10 mph with higher
gusts.
Ridge top winds.....Northeast around 15 mph.
Chc of wetting rain.Zero percent until 1200, then 20 percent.
Transport winds.....Northeast 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......
.SUNDAY NIGHT...Partly cloudy. Chance of showers and slight
chance of thunderstorms in the evening. Lows in the lower 40s.
Winds generally less than 10 mph.
.MEMORIAL DAY THROUGH TUESDAY...Partly cloudy with chance of
showers and slight chance of thunderstorms. Lows in the mid 40s.
Highs 68 to 73. Northwest winds around 10 mph.
.WEDNESDAY...Partly cloudy with chance of showers and slight
chance of thunderstorms. Lows in the lower 40s. Highs around 70.
Northeast winds around 10 mph.
.THURSDAY THROUGH FRIDAY...Mostly clear with slight chance of
showers and thunderstorms. Lows in the mid 40s. Highs 73 to 78.
$$
WYZ289-251100-
Granite/Green/Ferris/Rattlesnake Mountains-
Including the city of Jeffrey City
259 AM MDT Sat May 24 2025
.TODAY...
Sky/weather.........Mostly cloudy. Slight chance of showers in the
morning, then showers likely and slight chance
of thunderstorms in the afternoon. Chance of
precipitation 70 percent.
Chance of thunder...20 percent.
Max temperature.....61-66.
24 hr trend......6 degrees cooler.
Min humidity........40-46 percent.
24 hr trend......23 percent wetter.
20-foot winds.......North winds 10 to 15 mph. Gusts up to 15 mph
until 1200, then 30 mph.
Ridge top winds.....North 15 to 20 mph.
Chc of wetting rain.Zero percent until 1200, then 25 percent.
Transport winds.....North 15 to 20 mph.
Mixing Height.......1600-3600 ft agl until 1200, then 5400-7400 ft
agl.
Smoke dispersal.....Poor to fair until 1200, then good to very
good.
.TONIGHT...
Sky/weather.........Mostly cloudy. Showers likely early in the
evening. Slight chance of thunderstorms in the
evening. Chance of showers in the late evening
and overnight. Chance of precipitation 70
percent.
Chance of thunder...20 percent.
Min temperature.....43-48.
24 hr trend......1 degree warmer.
Max humidity........89-95 percent.
24 hr trend......10 percent wetter.
Humidity recovery...Excellent.
20-foot winds.......Northeast winds 10 to 15 mph. Gusts up to 30
mph until 2400, then 20 mph.
Ridge top winds.....Northeast 15 to 20 mph.
Chc of wetting rain.50 percent until 2400, then 5 percent.
Transport winds.....Northeast 15 to 20 mph.
Mixing Height.......1600-3600 ft agl until 2400, then 600-1400 ft
agl.
Smoke dispersal.....Poor.
.SUNDAY...
Sky/weather.........Partly cloudy then becoming mostly cloudy.
Slight chance of showers in the morning, then
chance of showers and slight chance of
thunderstorms in the afternoon. Chance of
precipitation 50 percent.
Chance of thunder...20 percent.
Max temperature.....57-62.
24 hr trend......4 degrees cooler.
Min humidity........42-48 percent.
24 hr trend......4 percent wetter.
20-foot winds.......Northeast winds around 10 mph. Gusts up to 15
mph until 1200, then 25 mph.
Ridge top winds.....Northeast around 15 mph.
Chc of wetting rain.Less than 5 percent.
Transport winds.....Northeast around 15 mph.
Mixing Height.......1000-3000 ft agl until 1200, then 3400-5400 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 lower 40s. Northeast winds
around 10 mph.
.MEMORIAL DAY...Partly cloudy with chance of showers and slight
chance of thunderstorms. Lows in the lower 40s. Highs in the
upper 60s. Winds generally less than 10 mph.
.TUESDAY THROUGH WEDNESDAY...Partly cloudy with chance of showers
and thunderstorms. Lows in the mid 40s. Highs 65 to 70. Northeast
winds around 10 mph.
.THURSDAY...Mostly clear. Slight chance of showers and
thunderstorms. Lows in the mid 40s. Highs in the lower 70s.
.FRIDAY...Mostly sunny. Chance of showers and slight chance of
thunderstorms in the afternoon. Highs in the mid 70s.
$$
WYZ300-251100-
Casper Mountain-
259 AM MDT Sat May 24 2025
.TODAY...
Sky/weather.........Mostly cloudy. Chance of showers in the
morning, then showers likely and slight chance
of thunderstorms in the afternoon. Chance of
precipitation 70 percent.
Chance of thunder...20 percent.
Max temperature.....59-64.
24 hr trend......5 degrees cooler.
Min humidity........60-66 percent.
24 hr trend......30 percent wetter.
20-foot winds.......Southeast 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.....Southeast around 10 mph until 1200, then
northeast.
Chc of wetting rain.Zero percent until 1200, then 45 percent.
Transport winds.....South around 10 mph until 1200, then north.
Mixing Height.......2800-4800 ft agl.
Smoke dispersal.....Poor to fair.
.TONIGHT...
Sky/weather.........Cloudy. Showers likely and slight chance of
thunderstorms until early morning. Chance of
showers early in the morning. Patchy fog after
midnight. Chance of precipitation 70 percent.
Chance of thunder...20 percent.
Min temperature.....42-47.
24 hr trend......2 degrees warmer.
Max humidity........90-96 percent.
24 hr trend......3 percent wetter.
Humidity recovery...Excellent.
20-foot winds.......East winds around 10 mph until 2400, then
downslope/downvalley 4-7 mph. Gusts up to 20
mph.
Ridge top winds.....East 10 to 15 mph.
Chc of wetting rain.65 percent until 2400, then 15 percent.
Transport winds.....East 10 to 15 mph.
Mixing Height.......200-2200 ft agl.
Smoke dispersal.....Poor.
.SUNDAY...
Sky/weather.........Cloudy. Showers likely through the day. Slight
chance of thunderstorms in the afternoon.
Chance of precipitation 70 percent.
Chance of thunder...20 percent.
Max temperature.....53-58.
24 hr trend......6 degrees cooler.
Min humidity........64-70 percent.
24 hr trend......7 percent wetter.
20-foot winds.......Upslope/upvalley 5-9 mph until 1200, then east
around 10 mph. Gusts up to 15 mph.
Ridge top winds.....East 10 to 15 mph.
Chc of wetting rain.25 percent until 1200, then 55 percent.
Transport winds.....East 10 to 15 mph.
Mixing Height.......800-2800 ft agl.
Smoke dispersal.....Poor.
.Forecast days 3 through 7......
.SUNDAY NIGHT...Mostly cloudy. Showers likely and slight chance
of thunderstorms in the evening, then chance of showers after
midnight. Lows in the lower 40s. Winds generally less than
10 mph.
.MEMORIAL DAY...Partly cloudy with showers likely and slight
chance of thunderstorms. Lows in the lower 40s. Highs in the
upper 50s. Winds generally less than 10 mph.
.TUESDAY THROUGH WEDNESDAY...Partly cloudy with showers likely
and chance of thunderstorms. Lows in the lower 40s. Highs 60 to
65. Winds generally less than 10 mph.
.THURSDAY THROUGH FRIDAY...Mostly clear with chance of showers
and slight chance of thunderstorms. Lows in the mid 40s. Highs
65 to 70.
$$