Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS Riverton, WY
Issued by NWS Riverton, WY
992
FNUS55 KRIW 230712
FWFRIW
Fire Weather Planning Forecast for Western and Central Wyoming
National Weather Service Riverton WY
112 AM MDT Sat Aug 23 2025
.DISCUSSION...
...Yellowstone NP and Teton dispatch areas (includes fire weather
zones 140...414...415...and 416)...
Today will be a mainly dry day with only isolated convection
expected, mainly in Zone 416 where there is a 1 out of 5 chance
at any given point. Elsewhere, the chance is less than 1 out of
10. Wind should remain light to moderate except in and around
any shower or thunderstorm. Relative humidity should remain above
critical levels for the most part. Mixing and smoke dispersal will
be generally good to excellent in the afternoon. The chance of
thunderstorms will increase Sunday afternoon with an increase
chance of wetting rain beginning on Monday.
...Cody dispatch area (includes fire weather zones 275...276...
282...283...285...286...287...288...and 289)...
Today will be a mainly dry day with only isolated convection
expected in and near the mountains. Elsewhere, the chance is less
than 1 out of 10. Wind should remain light to moderate except in
and around any shower or thunderstorm. Relative humidity should
remain above critical levels. Mixing and smoke dispersal will be
generally fair to good in the afternoon. The chance of
thunderstorms will increase Sunday afternoon across the southern
zones, with increasing chances through much of next week across
the area.
...Casper dispatch area (includes fire weather zones 277...278...
279...280...281...285...289...and 300)...
Overnight showers should end shortly after sunrise. Otherwise, today
will be a mainly dry day with only isolated convection
expected in and near the mountains. Elsewhere, the chance is less
than 1 out of 10. Wind should remain light to moderate except in
and around any shower or thunderstorm. Relative humidity should
remain above critical levels. Mixing and smoke dispersal will be
generally good to excellent in the afternoon. The chance of
thunderstorms will increase Sunday afternoon across the southern
zones, with increasing chances through much of next week across the
area.
...Thunderstorms imply strong gusty and erratic winds...
WYZ280-240915-
Natrona County/Casper BLM-
Including the cities of Casper and Midwest
112 AM MDT Sat Aug 23 2025
.TODAY...
Sky/weather.........Partly cloudy then becoming mostly sunny.
Chance of thunder...0 percent.
Max temperature.....76-81.
24 hr trend......2 degrees warmer.
Min humidity........37-43 percent.
24 hr trend......9 percent drier.
20-foot winds.......East winds around 10 mph until 1200, then
upslope/upvalley 5-9 mph until 1500, then east
around 10 mph. Gusts up to 15 mph.
Ridge top winds.....East 10 to 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....East around 15 mph until 1200, then northwest.
Mixing Height.......1000-3000 ft agl until 1200, then 4800-6800 ft
agl.
Smoke dispersal.....Poor to fair.
.TONIGHT...
Sky/weather.........Partly cloudy.
Chance of thunder...0 percent.
Min temperature.....50-55.
24 hr trend......3 degrees cooler.
Max humidity........78-84 percent.
24 hr trend......4 percent wetter.
Humidity recovery...Excellent.
20-foot winds.......Northeast winds around 10 mph until 0300, then
downslope/downvalley 4-7 mph. Gusts up to 25
mph.
Ridge top winds.....Northeast around 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Northeast around 15 mph.
Mixing Height.......3000-5000 ft agl until 2400, then 600-800 ft
agl.
Smoke dispersal.....Fair to good until 2400, then 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.....74-79.
24 hr trend......2 degrees cooler.
Min humidity........40-46 percent.
24 hr trend......3 percent wetter.
20-foot winds.......Northeast winds 10 to 15 mph. Gusts up to 15
mph until 1200, then 25 mph.
Ridge top winds.....Northeast around 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....East around 15 mph.
Mixing Height.......1000-3000 ft agl until 1200, then 3600-5600 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 and thunderstorms after midnight. Lows in the lower 50s.
East winds around 10 mph.
.MONDAY...Mostly cloudy. Chance of showers and slight chance of
thunderstorms. Lows in the lower 50s. Highs in the mid 70s. East
winds around 10 mph.
.TUESDAY...Partly cloudy. Chance of showers and slight chance of
thunderstorms. Lows in the mid 50s. Highs in the upper 70s. Winds
generally less than 10 mph.
.WEDNESDAY...Mostly cloudy with chance of showers and slight
chance of thunderstorms. Lows in the mid 50s. Highs in the upper
70s. Winds generally less than 10 mph.
.THURSDAY...Mostly cloudy with showers likely and chance of
thunderstorms. Lows in the lower 50s. Highs in the mid 70s.
.FRIDAY...Partly cloudy. Slight chance of showers in the morning,
then chance of showers and slight chance of thunderstorms in the
afternoon. Highs in the mid 70s.
$$
WYZ283-240915-
Upper Wind River Basin/Wind River Basin-
Including the cities of Crowheart, Lander, Riverton, and Shoshoni
112 AM MDT Sat Aug 23 2025
.TODAY...
Sky/weather.........Partly cloudy.
Chance of thunder...0 percent.
Max temperature.....78-83.
24 hr trend......Unchanged.
Min humidity........32-38 percent.
24 hr trend......3 percent drier.
20-foot winds.......East winds around 10 mph until 0900, then
upslope/upvalley 5-9 mph until 1500, then east
around 10 mph. Gusts up to 15 mph.
Ridge top winds.....East around 10 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Southeast around 10 mph until 1200, then
northeast.
Mixing Height.......1000-3000 ft agl until 1200, then 4000-6000 ft
agl.
Smoke dispersal.....Poor to fair.
.TONIGHT...
Sky/weather.........Partly cloudy.
Chance of thunder...0 percent.
Min temperature.....48-53.
24 hr trend......2 degrees cooler.
Max humidity........71-77 percent.
24 hr trend......3 percent drier.
Humidity recovery...Excellent.
20-foot winds.......Northeast winds around 10 mph until 0300, then
downslope/downvalley 4-7 mph. Gusts up to 25
mph.
Ridge top winds.....Northeast 10 to 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Northeast 10 to 15 mph.
Mixing Height.......2600-4600 ft agl until 2400, then 600-1000 ft
agl.
Smoke dispersal.....Poor to fair.
.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.....76-81.
24 hr trend......2 degrees cooler.
Min humidity........36-42 percent.
24 hr trend......2 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.Zero percent.
Transport winds.....East 10 to 15 mph.
Mixing Height.......1200-3200 ft agl until 1200, then 4200-5800 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 and thunderstorms after midnight. Lows in the mid 50s.
Winds generally less than 10 mph.
.MONDAY THROUGH TUESDAY...Mostly cloudy with chance of showers
and slight chance of thunderstorms. Lows 52 to 57. Highs in the
upper 70s. Winds generally less than 10 mph.
.WEDNESDAY...Mostly cloudy with chance of showers and slight
chance of thunderstorms. Lows in the lower 50s. Highs in the mid
70s. Winds generally less than 10 mph.
.THURSDAY...Partly cloudy with showers likely and chance of
thunderstorms. Lows in the lower 50s. Highs in the mid 70s.
.FRIDAY...Partly cloudy. Slight chance of showers in the morning,
then chance of showers and slight chance of thunderstorms in the
afternoon. Highs in the mid 70s.
$$
WYZ285-240915-
South Bighorn Mountains-
112 AM MDT Sat Aug 23 2025
.TODAY...
Sky/weather.........Partly cloudy then becoming mostly sunny. Haze
late in the afternoon.
Chance of thunder...0 percent.
Max temperature.....72-77.
24 hr trend......3 degrees warmer.
Min humidity........42-48 percent.
24 hr trend......12 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph until 1200, then south
around 10 mph until 1500, then northeast. Gusts
up to 15 mph.
Ridge top winds.....Southeast around 10 mph.
Chc of wetting rain.Zero percent.
Transport winds.....South around 10 mph until 1200, then west.
Mixing Height.......800-2800 ft agl until 1200, then 4400-6400 ft
agl.
Smoke dispersal.....Poor to fair.
.TONIGHT...
Sky/weather.........Partly cloudy.
Chance of thunder...0 percent.
Min temperature.....47-52.
24 hr trend......1 degree cooler.
Max humidity........70-76 percent.
24 hr trend......4 percent drier.
Humidity recovery...Excellent.
20-foot winds.......Northeast winds 10 to 15 mph until 0300, then
downslope/downvalley 4-7 mph. Gusts up to 25
mph.
Ridge top winds.....Northeast around 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Northeast around 15 mph.
Mixing Height.......1800-3800 ft agl until 2400, then 200-600 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...10 percent.
Max temperature.....70-75.
24 hr trend......3 degrees cooler.
Min humidity........39-45 percent.
24 hr trend......1 percent wetter.
20-foot winds.......Upslope/upvalley 5-9 mph until 0900, then east
around 10 mph. Gusts up to 20 mph.
Ridge top winds.....East 10 to 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Northeast 10 to 15 mph.
Mixing Height.......800-2800 ft agl until 1200, then 3400-5400 ft
agl.
Smoke dispersal.....Poor to fair.
.Forecast days 3 through 7......
.SUNDAY NIGHT...Mostly cloudy. Slight chance of showers and
thunderstorms in the evening. Lows in the lower 50s. East winds
around 10 mph.
.MONDAY...Mostly cloudy. Slight chance of showers and
thunderstorms. Lows in the lower 50s. Highs around 70. East winds
around 10 mph.
.TUESDAY...Mostly cloudy. Chance of showers and slight chance of
thunderstorms. Lows in the mid 50s. Highs in the lower 70s.
Southeast winds around 10 mph.
.WEDNESDAY...Mostly cloudy with chance of showers and slight
chance of thunderstorms. Lows in the lower 50s. Highs around 70.
Winds generally less than 10 mph.
.THURSDAY...Mostly cloudy with showers likely and chance of
thunderstorms. Lows in the lower 50s. Highs in the upper 60s.
.FRIDAY...Partly cloudy. Chance of showers in the morning, then
chance of showers and slight chance of thunderstorms in the
afternoon. Highs in the upper 60s.
$$
WYZ281-240915-
Johnson County/Casper BLM-
Including the cities of Buffalo and Kaycee
112 AM MDT Sat Aug 23 2025
.TODAY...
Sky/weather.........Partly cloudy then becoming mostly sunny.
Chance of thunder...0 percent.
Max temperature.....72-77.
24 hr trend......5 degrees warmer.
Min humidity........44-50 percent.
24 hr trend......4 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph until 0900, then
southeast around 10 mph. Gusts up to 15 mph.
Ridge top winds.....East 10 to 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Southeast 10 to 15 mph.
Mixing Height.......1200-3200 ft agl until 1200, then 4600-6600 ft
agl.
Smoke dispersal.....Poor to fair.
.TONIGHT...
Sky/weather.........Partly cloudy.
Chance of thunder...0 percent.
Min temperature.....48-53.
24 hr trend......3 degrees cooler.
Max humidity........69-75 percent.
24 hr trend......1 percent wetter.
Humidity recovery...Good.
20-foot winds.......Northeast winds around 10 mph until 2400, then
downslope/downvalley 4-7 mph. Gusts up to 15
mph.
Ridge top winds.....Northeast 10 to 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Northeast 10 to 15 mph.
Mixing Height.......2800-4800 ft agl until 2400, then 400-1200 ft
agl.
Smoke dispersal.....Poor to fair.
.SUNDAY...
Sky/weather.........Partly cloudy. Slight chance of showers and
thunderstorms in the afternoon. Chance of
precipitation 20 percent.
Chance of thunder...10 percent.
Max temperature.....71-76.
24 hr trend......2 degrees cooler.
Min humidity........38-44 percent.
24 hr trend......4 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.
Transport winds.....East 10 to 15 mph.
Mixing Height.......1200-3200 ft agl until 1200, then 4200-6200 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 lower 50s. East winds
around 10 mph.
.MONDAY...Partly cloudy with slight chance of showers and
thunderstorms. Lows in the lower 50s. Highs in the upper 70s.
Winds generally less than 10 mph.
.TUESDAY...Partly cloudy with slight chance of showers and
thunderstorms. Lows in the mid 50s. Highs in the lower 80s.
Southeast winds around 10 mph.
.WEDNESDAY...Mostly cloudy with chance of showers and slight
chance of thunderstorms. Lows in the mid 50s. Highs in the upper
70s. Winds generally less than 10 mph.
.THURSDAY...Mostly cloudy with chance of showers and slight
chance of thunderstorms. Lows in the mid 50s. Highs in the upper
70s.
.FRIDAY...Partly cloudy. Slight chance of showers in the morning,
then chance of showers and slight chance of thunderstorms in the
afternoon. Highs in the mid 70s.
$$
WYZ282-240915-
South Bighorn Basin/Worland BLM-
Including the cities of Ten Sleep, Thermopolis, and Worland
112 AM MDT Sat Aug 23 2025
.TODAY...
Sky/weather.........Partly cloudy then becoming mostly sunny.
Chance of thunder...0 percent.
Max temperature.....74-79.
24 hr trend......Unchanged.
Min humidity........31-37 percent.
24 hr trend......4 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph until 1500, then north
around 10 mph. Gusts up to 15 mph.
Ridge top winds.....Northeast around 10 mph.
Chc of wetting rain.Zero percent.
Transport winds.....South around 10 mph until 1200, then north.
Mixing Height.......1200-3200 ft agl until 1200, then 4200-6200 ft
agl.
Smoke dispersal.....Poor to fair.
.TONIGHT...
Sky/weather.........Partly cloudy.
Chance of thunder...0 percent.
Min temperature.....48-53.
24 hr trend......2 degrees cooler.
Max humidity........70-76 percent.
24 hr trend......Unchanged.
Humidity recovery...Excellent.
20-foot winds.......North winds around 10 mph until 0300, then
downslope/downvalley 4-7 mph. Gusts up to 15
mph.
Ridge top winds.....North around 15 mph until 2400, then northwest.
Chc of wetting rain.Zero percent.
Transport winds.....North around 15 mph until 2400, then northwest.
Mixing Height.......2400-4400 ft agl until 2400, then 400-800 ft
agl.
Smoke dispersal.....Poor.
.SUNDAY...
Sky/weather.........Partly cloudy. Slight chance of showers in the
afternoon. Slight chance of thunderstorms late
in the afternoon. Chance of precipitation 20
percent.
Chance of thunder...10 percent.
Max temperature.....73-78.
24 hr trend......1 degree cooler.
Min humidity........31-37 percent.
24 hr trend......3 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph. Gusts up to 15 mph.
Ridge top winds.....West around 10 mph until 1200, then northeast.
Chc of wetting rain.Zero percent.
Transport winds.....Northwest around 10 mph.
Mixing Height.......1000-3000 ft agl until 1200, then 4000-6000 ft
agl.
Smoke dispersal.....Poor to fair.
.Forecast days 3 through 7......
.SUNDAY NIGHT...Mostly cloudy. Slight chance of showers and
thunderstorms in the evening. Lows in the mid 50s. Winds
generally less than 10 mph.
.MONDAY...Partly cloudy. Slight chance of showers and
thunderstorms. Lows in the mid 50s. Highs in the lower 80s. Winds
generally less than 10 mph.
.TUESDAY...Partly cloudy. Slight chance of showers and
thunderstorms. Lows in the upper 50s. Highs in the lower 80s.
Winds generally less than 10 mph.
.WEDNESDAY...Mostly cloudy with chance of showers and slight
chance of thunderstorms. Lows in the mid 50s. Highs in the upper
70s. Winds generally less than 10 mph.
.THURSDAY THROUGH FRIDAY...Partly cloudy with chance of showers
and slight chance of thunderstorms. Lows in the mid 50s. Highs in
the upper 70s.
$$
WYZ275-240915-
North Bighorn Basin/Worland BLM-
Including the cities of Greybull, Lovell, and Powell
112 AM MDT Sat Aug 23 2025
.TODAY...
Sky/weather.........Partly cloudy then becoming mostly sunny.
Chance of thunder...0 percent.
Max temperature.....73-78.
24 hr trend......1 degree warmer.
Min humidity........33-39 percent.
24 hr trend......3 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph until 1500, then north
around 10 mph. Gusts up to 15 mph.
Ridge top winds.....West around 10 mph until 1200, then north.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest around 10 mph until 1200, then
northwest.
Mixing Height.......1200-3200 ft agl until 1200, then 4000-6000 ft
agl.
Smoke dispersal.....Poor to fair.
.TONIGHT...
Sky/weather.........Mostly clear.
Chance of thunder...0 percent.
Min temperature.....48-53.
24 hr trend......1 degree cooler.
Max humidity........69-75 percent.
24 hr trend......1 percent drier.
Humidity recovery...Good.
20-foot winds.......North winds around 10 mph and gusty.
Ridge top winds.....North around 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....North around 15 mph.
Mixing Height.......2000-4000 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.....72-77.
24 hr trend......1 degree cooler.
Min humidity........29-35 percent.
24 hr trend......4 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph. Gusts up to 15 mph.
Ridge top winds.....Northwest around 10 mph until 1200, then north.
Chc of wetting rain.Zero percent.
Transport winds.....Northwest around 10 mph.
Mixing Height.......800-2800 ft agl until 1200, then 3800-5800 ft
agl.
Smoke dispersal.....Poor to fair.
.Forecast days 3 through 7......
.SUNDAY NIGHT...Partly cloudy. Lows in the mid 50s. North winds
around 10 mph.
.MONDAY...Partly cloudy with slight chance of showers. Lows in
the mid 50s. Highs in the lower 80s. Winds generally less than
10 mph.
.TUESDAY...Partly cloudy. Slight chance of showers and
thunderstorms. Lows in the upper 50s. Highs in the lower 80s.
Winds generally less than 10 mph.
.WEDNESDAY...Mostly cloudy with chance of showers and slight
chance of thunderstorms. Lows in the upper 50s. Highs around 80.
Winds generally less than 10 mph.
.THURSDAY...Mostly cloudy with chance of showers and slight
chance of thunderstorms. Lows in the mid 50s. Highs in the upper
70s.
.FRIDAY...Partly cloudy. Slight chance of showers in the morning,
then chance of showers and slight chance of thunderstorms in the
afternoon. Highs in the upper 70s.
$$
WYZ276-240915-
Cody Foothills-
Including the cities of Clark, Cody, and Meeteetse
112 AM MDT Sat Aug 23 2025
.TODAY...
Sky/weather.........Mostly sunny.
Chance of thunder...0 percent.
Max temperature.....73-78.
24 hr trend......3 degrees warmer.
Min humidity........38-44 percent.
24 hr trend......2 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph until 1200, then
northeast 10 to 15 mph with gusts to around 25
mph.
Ridge top winds.....Northeast 10 to 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Southeast around 10 mph until 1200, then
northeast.
Mixing Height.......800-2800 ft agl until 1200, then 3400-5400 ft
agl.
Smoke dispersal.....Poor to fair.
.TONIGHT...
Sky/weather.........Partly cloudy.
Chance of thunder...0 percent.
Min temperature.....49-54.
24 hr trend......1 degree warmer.
Max humidity........65-71 percent.
24 hr trend......5 percent drier.
Humidity recovery...Good.
20-foot winds.......North winds 10 to 15 mph with gusts to around
25 mph until 2400, then northwest with gusts to
around 15 mph until 0300, 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 10 to 15 mph.
Mixing Height.......2000-4000 ft agl until 2400, then 600-1000 ft
agl.
Smoke dispersal.....Poor to fair.
.SUNDAY...
Sky/weather.........Partly cloudy. Slight chance of showers and
thunderstorms in the afternoon. Chance of
precipitation 20 percent.
Chance of thunder...10 percent.
Max temperature.....72-77.
24 hr trend......1 degree cooler.
Min humidity........36-42 percent.
24 hr trend......3 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph until 1200, then
northeast around 10 mph. Gusts up to 20 mph.
Ridge top winds.....North 10 to 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....North 10 to 15 mph.
Mixing Height.......1000-3000 ft agl until 1200, then 3600-5400 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 lower 50s. Winds
generally less than 10 mph.
.MONDAY...Partly cloudy. Chance of showers and slight chance of
thunderstorms. Lows in the mid 50s. Highs in the mid 70s. Winds
generally less than 10 mph.
.TUESDAY...Mostly cloudy with chance of showers and
thunderstorms. Lows in the mid 50s. Highs in the upper 70s. Winds
generally less than 10 mph.
.WEDNESDAY...Cloudy with chance of showers and slight chance of
thunderstorms. Lows in the mid 50s. Highs in the lower 70s. Winds
generally less than 10 mph.
.THURSDAY...Mostly cloudy with showers likely and chance of
thunderstorms. Lows in the mid 50s. Highs in the lower 70s.
.FRIDAY...Partly cloudy. Slight chance of showers in the morning,
then chance of showers and thunderstorms in the afternoon. Highs
in the lower 70s.
$$
WYZ287-240915-
Owl Creek Mountains-
112 AM MDT Sat Aug 23 2025
.TODAY...
Sky/weather.........Partly cloudy then becoming mostly sunny.
Slight chance of showers and thunderstorms late
in the afternoon. Chance of precipitation 20
percent.
Chance of thunder...10 percent.
Max temperature.....71-76.
24 hr trend......2 degrees warmer.
Min humidity........36-42 percent.
24 hr trend......4 percent drier.
20-foot winds.......South winds around 10 mph until 1200, then
east. Gusts up to 20 mph.
Ridge top winds.....South around 15 mph until 1200, then east.
Chc of wetting rain.Zero percent.
Transport winds.....South around 15 mph until 1200, then east.
Mixing Height.......600-2600 ft agl until 1200, then 3400-5400 ft
agl.
Smoke dispersal.....Poor to fair.
.TONIGHT...
Sky/weather.........Partly cloudy. Slight chance of showers and
thunderstorms early in the evening. Chance of
precipitation 20 percent.
Chance of thunder...10 percent.
Min temperature.....49-54.
24 hr trend......1 degree cooler.
Max humidity........58-64 percent.
24 hr trend......10 percent drier.
Humidity recovery...Good.
20-foot winds.......North winds around 10 mph until 0300, then
downslope/downvalley 4-7 mph. Gusts up to 25
mph.
Ridge top winds.....North around 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....North around 15 mph.
Mixing Height.......1800-3800 ft agl until 2400, then 200-800 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.....70-75.
24 hr trend......2 degrees cooler.
Min humidity........35-41 percent.
24 hr trend......2 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.....East 10 to 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest around 10 mph until 1200, then east.
Mixing Height.......800-2800 ft agl until 1200, then 3400-5400 ft
agl.
Smoke dispersal.....Poor to fair.
.Forecast days 3 through 7......
.SUNDAY NIGHT...Mostly cloudy. Slight chance of showers and
thunderstorms in the evening. Lows in the mid 50s. Winds
generally less than 10 mph.
.MONDAY...Mostly cloudy. Chance of showers and slight chance of
thunderstorms. Lows in the mid 50s. Highs in the lower 70s. Winds
generally less than 10 mph.
.TUESDAY...Mostly cloudy. Chance of showers and slight chance of
thunderstorms. Lows in the mid 50s. Highs in the lower 70s. Winds
generally less than 10 mph.
.WEDNESDAY...Mostly cloudy with showers likely and slight chance
of thunderstorms. Lows in the mid 50s. Highs around 70. Winds
generally less than 10 mph.
.THURSDAY...Mostly cloudy. Showers likely and chance of
thunderstorms. Lows in the lower 50s. Highs around 70.
.FRIDAY...Partly cloudy. Slight chance of showers in the morning,
then showers likely and chance of thunderstorms in the afternoon.
Highs around 70.
$$
WYZ286-240915-
Absaroka Mountains/North Shoshone NF-
Including the city of Pahaska
112 AM MDT Sat Aug 23 2025
.TODAY...
Sky/weather.........Partly cloudy. Haze early in the afternoon.
Slight chance of showers and thunderstorms
early in the afternoon. Chance of precipitation
20 percent.
Chance of thunder...10 percent.
Max temperature.....68-73.
24 hr trend......2 degrees warmer.
Min humidity........35-41 percent.
24 hr trend......7 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph until 1200, then
southeast around 10 mph with gusts to around 25
mph until 1500, then east with gusts to around
25 mph.
Ridge top winds.....Southwest around 10 mph until 1200, then east.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest around 10 mph until 1200, then
northwest.
Mixing Height.......1400-3400 ft agl until 1200, then 5600-7600 ft
agl.
Smoke dispersal.....Poor until 1200, then good.
.TONIGHT...
Sky/weather.........Partly cloudy. Slight chance of showers and
thunderstorms early in the evening. Haze early
in the morning. Chance of precipitation 20
percent.
Chance of thunder...10 percent.
Min temperature.....42-47.
24 hr trend......Unchanged.
Max humidity........73-79 percent.
24 hr trend......6 percent drier.
Humidity recovery...Excellent.
20-foot winds.......East winds around 10 mph with gusts to around
25 mph until 2400, then downslope/downvalley
4-7 mph.
Ridge top winds.....East around 15 mph until 2400, then south.
Chc of wetting rain.Zero percent.
Transport winds.....East 10 to 15 mph.
Mixing Height.......1800-3800 ft agl until 2400, then 400-1000 ft
agl.
Smoke dispersal.....Poor.
.SUNDAY...
Sky/weather.........Partly cloudy. Haze early in the morning.
Slight chance of showers and thunderstorms in
the afternoon. Chance of precipitation 20
percent.
Chance of thunder...20 percent.
Max temperature.....66-71.
24 hr trend......2 degrees cooler.
Min humidity........33-39 percent.
24 hr trend......2 percent wetter.
20-foot winds.......Upslope/upvalley 5-9 mph until 1200, then east
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
northwest.
Mixing Height.......1200-3200 ft agl until 1200, then 4200-6200 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. Lows in the mid 40s.
Winds generally less than 10 mph.
.MONDAY...Mostly 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...Mostly cloudy with showers likely and chance of
thunderstorms. Lows in the upper 40s. Highs in the mid 60s. Winds
generally less than 10 mph.
.WEDNESDAY...Cloudy with showers likely and chance of
thunderstorms. Lows in the upper 40s. Highs in the lower 60s.
Winds generally less than 10 mph.
.THURSDAY...Mostly cloudy with showers likely and chance of
thunderstorms. Lows in the mid 40s. Highs around 60.
.FRIDAY...Partly cloudy. Chance of showers in the morning, then
showers likely and chance of thunderstorms in the afternoon.
Highs in the lower 60s.
$$
WYZ140-240915-
Yellowstone National Park-
Including the cities of Lake, Mammoth, and Old Faithful
112 AM MDT Sat Aug 23 2025
.TODAY...
Sky/weather.........Mostly sunny then becoming partly cloudy. Haze
in the afternoon.
Chance of thunder...0 percent.
Max temperature.....75-80.
24 hr trend......1 degree cooler.
Min humidity........23-29 percent.
24 hr trend......4 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.....Southeast 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.......1600-3600 ft agl until 1200, then 7400-9400 ft
agl.
Smoke dispersal.....Poor until 1200, then good to very good.
.TONIGHT...
Sky/weather.........Partly cloudy. Haze through the night. Areas of
smoke in the evening.
Chance of thunder...0 percent.
Min temperature.....41-46.
24 hr trend......Unchanged.
Max humidity........76-82 percent.
24 hr trend......4 percent drier.
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.....Northeast 10 to 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Northeast 10 to 15 mph.
Mixing Height.......3800-5800 ft agl until 2400, then 400-800 ft
agl.
Smoke dispersal.....Fair to good until 2400, then poor.
.SUNDAY...
Sky/weather.........Partly cloudy. Haze early in the morning.
Slight chance of showers and thunderstorms in
the afternoon. Chance of precipitation 20
percent.
Chance of thunder...10 percent.
Max temperature.....74-79.
24 hr trend......1 degree cooler.
Min humidity........26-32 percent.
24 hr trend......1 percent wetter.
20-foot winds.......Upslope/upvalley 5-9 mph until 1500, then
northwest around 10 mph. Gusts up to 15 mph.
Ridge top winds.....East around 10 mph until 1200, then northwest.
Chc of wetting rain.Zero percent.
Transport winds.....East around 10 mph until 1200, then northwest.
Mixing Height.......1400-3400 ft agl until 1200, then 6800-8800 ft
agl.
Smoke dispersal.....Poor until 1200, then good.
.Forecast days 3 through 7......
.SUNDAY NIGHT...Mostly cloudy. Lows in the lower 40s. Winds
generally less than 10 mph.
.MONDAY...Mostly 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...Mostly cloudy with showers likely and chance of
thunderstorms. Lows in the mid 40s. Highs in the upper 60s. Winds
generally less than 10 mph.
.WEDNESDAY...Cloudy with showers likely and chance of
thunderstorms. Lows in the mid 40s. Highs in the lower 60s. Winds
generally less than 10 mph.
.THURSDAY...Mostly cloudy with showers likely and chance of
thunderstorms. Lows in the lower 40s. Highs in the lower 60s.
.FRIDAY...Partly cloudy. Slight chance of showers in the morning,
then chance of showers and thunderstorms in the afternoon. Highs
in the mid 60s.
$$
WYZ415-240915-
North Zone Bridger Teton NF and Grand Teton NP-
Including the cities of Jackson and Moran
112 AM MDT Sat Aug 23 2025
.TODAY...
Sky/weather.........Partly cloudy then becoming mostly sunny. Haze
early in the morning.
Chance of thunder...0 percent.
Max temperature.....76-81.
24 hr trend......2 degrees cooler.
Min humidity........19-25 percent.
24 hr trend......3 percent wetter.
20-foot winds.......Southeast winds around 10 mph until 1200, then
west. Gusts up to 15 mph.
Ridge top winds.....Southeast around 15 mph until 1200, then west.
Chc of wetting rain.Zero percent.
Transport winds.....South around 15 mph until 1200, then west.
Mixing Height.......1600-3600 ft agl until 1200, then 7200-9200 ft
agl.
Smoke dispersal.....Poor until 1200, then good to very good.
.TONIGHT...
Sky/weather.........Partly cloudy. Haze late in the evening.
Chance of thunder...0 percent.
Min temperature.....43-48.
24 hr trend......Unchanged.
Max humidity........70-76 percent.
24 hr trend......9 percent drier.
Humidity recovery...Excellent.
20-foot winds.......Northwest winds around 10 mph until 2100, then
east. Gusts up to 15 mph.
Ridge top winds.....North around 10 mph until 2400, then east.
Chc of wetting rain.Zero percent.
Transport winds.....North around 10 mph until 2400, then east.
Mixing Height.......4000-6000 ft agl until 2400, then 400-1000 ft
agl.
Smoke dispersal.....Fair to good until 2400, then poor.
.SUNDAY...
Sky/weather.........Partly cloudy. Haze early in the morning.
Slight chance of showers and thunderstorms in
the afternoon. Chance of precipitation 20
percent.
Chance of thunder...20 percent.
Max temperature.....74-79.
24 hr trend......1 degree cooler.
Min humidity........26-32 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 15 mph.
Ridge top winds.....Southeast around 10 mph until 1200, then west.
Chc of wetting rain.Zero percent.
Transport winds.....Southeast around 10 mph until 1200, then west.
Mixing Height.......1800-3800 ft agl until 1200, then 7200-9200 ft
agl.
Smoke dispersal.....Poor until 1200, then good to very good.
.Forecast days 3 through 7......
.SUNDAY NIGHT...Mostly cloudy. Slight chance of showers and
thunderstorms in the evening, then slight chance of showers after
midnight. Lows in the upper 40s. Winds generally less than
10 mph.
.MONDAY...Mostly cloudy with showers likely and chance of
thunderstorms. Lows in the mid 40s. Highs in the lower 70s. Winds
generally less than 10 mph.
.TUESDAY...Mostly cloudy with showers and chance of
thunderstorms. Lows in the upper 40s. Highs in the upper 60s.
Winds generally less than 10 mph.
.WEDNESDAY...Cloudy with showers and chance of thunderstorms.
Lows in the mid 40s. Highs in the lower 60s. Winds generally less
than 10 mph.
.THURSDAY...Mostly cloudy. Showers and chance of thunderstorms.
Lows in the lower 40s. Highs in the lower 60s.
.FRIDAY...Partly cloudy. Chance of showers in the morning, then
chance of showers and thunderstorms in the afternoon. Highs in
the lower 60s.
$$
WYZ416-240915-
West Wind River Mountains/East Zone Bridger Teton NF-
112 AM MDT Sat Aug 23 2025
.TODAY...
Sky/weather.........Mostly sunny then becoming partly cloudy. Areas
of smoke until late afternoon. Haze early in
the morning. Slight chance of showers and
thunderstorms late in the afternoon. Chance of
precipitation 20 percent.
Chance of thunder...10 percent.
Max temperature.....70-75.
24 hr trend......4 degrees cooler.
Min humidity........24-30 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.....Southwest 10 to 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest around 10 mph until 1200, then west.
Mixing Height.......1400-3400 ft agl until 1200, then 6800-8800 ft
agl.
Smoke dispersal.....Poor until 1200, then good to very good.
.TONIGHT...
Sky/weather.........Partly cloudy. Areas of smoke in the late
evening and overnight. Haze in the late evening
and overnight.
Chance of thunder...0 percent.
Min temperature.....43-48.
24 hr trend......Unchanged.
Max humidity........71-77 percent.
24 hr trend......13 percent drier.
Humidity recovery...Excellent.
20-foot winds.......Northwest winds around 10 mph until 2100, then
northeast until 0300, then downslope/downvalley
4-7 mph. Gusts up to 25 mph.
Ridge top winds.....Northeast around 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Northeast around 15 mph.
Mixing Height.......3800-5800 ft agl until 2400, then 400-800 ft
agl.
Smoke dispersal.....Fair to good until 2400, then poor.
.SUNDAY...
Sky/weather.........Partly cloudy then becoming mostly cloudy. Haze
and areas of smoke early in the morning. Slight
chance of thunderstorms early in the afternoon.
Chance of showers in the afternoon. Chance of
thunderstorms late in the afternoon. Chance of
precipitation 40 percent.
Chance of thunder...30 percent.
Max temperature.....68-73.
24 hr trend......2 degrees cooler.
Min humidity........33-39 percent.
24 hr trend......7 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.....Southeast around 10 mph until 1200, then west.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest around 10 mph until 1200, then west.
Mixing Height.......1800-3800 ft agl until 1200, then 6400-8400 ft
agl.
Smoke dispersal.....Poor to fair until 1200, then good to very
good.
.Forecast days 3 through 7......
.SUNDAY NIGHT...Mostly cloudy. Chance of showers and slight
chance of thunderstorms in the evening, then slight chance of
showers and thunderstorms after midnight. Lows in the mid 40s.
Winds generally less than 10 mph.
.MONDAY...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.
.TUESDAY THROUGH WEDNESDAY...Mostly cloudy with showers likely
and chance of thunderstorms. Lows 42 to 47. Highs 58 to 63. Winds
generally less than 10 mph.
.THURSDAY...Mostly cloudy. Showers likely and chance of
thunderstorms. Lows in the lower 40s. Highs in the upper 50s.
.FRIDAY...Partly cloudy. Chance of showers in the morning, then
chance of showers and thunderstorms in the afternoon. Highs
around 60.
$$
WYZ288-240915-
East Wind River Mountains/South Shoshone NF-
Including the cities of Dubois and South Pass
112 AM MDT Sat Aug 23 2025
.TODAY...
Sky/weather.........Partly cloudy. Slight chance of showers and
thunderstorms in the afternoon. Chance of
precipitation 20 percent.
Chance of thunder...10 percent.
Max temperature.....69-74.
24 hr trend......Unchanged.
Min humidity........32-38 percent.
24 hr trend......1 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.....East 10 to 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Northwest 10 to 15 mph.
Mixing Height.......1200-3200 ft agl until 1200, then 5200-7200 ft
agl.
Smoke dispersal.....Poor until 1200, then good.
.TONIGHT...
Sky/weather.........Partly cloudy.
Chance of thunder...10 percent.
Min temperature.....44-49.
24 hr trend......Unchanged.
Max humidity........75-81 percent.
24 hr trend......15 percent drier.
Humidity recovery...Excellent.
20-foot winds.......Northeast winds around 10 mph until 0300, then
downslope/downvalley 4-7 mph. Gusts up to 25
mph.
Ridge top winds.....Northeast around 15 mph until 2400, then north.
Chc of wetting rain.Zero percent.
Transport winds.....East around 15 mph.
Mixing Height.......2400-4400 ft agl until 2400, then 400-800 ft
agl.
Smoke dispersal.....Poor to fair.
.SUNDAY...
Sky/weather.........Partly cloudy. Slight chance of thunderstorms
early in the afternoon. Chance of showers in
the afternoon. Chance of thunderstorms late in
the afternoon. Chance of precipitation 40
percent.
Chance of thunder...30 percent.
Max temperature.....66-71.
24 hr trend......2 degrees cooler.
Min humidity........36-42 percent.
24 hr trend......4 percent wetter.
20-foot winds.......Upslope/upvalley 5-9 mph until 0900, 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 10 percent.
Transport winds.....South around 10 mph until 1200, then west.
Mixing Height.......1200-3200 ft agl until 1200, then 4400-6400 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 and thunderstorms after midnight. Lows in the upper 40s.
Winds generally less than 10 mph.
.MONDAY...Mostly cloudy with showers likely and chance of
thunderstorms. Lows in the upper 40s. Highs in the mid 60s. Winds
generally less than 10 mph.
.TUESDAY THROUGH WEDNESDAY...Mostly cloudy with showers likely
and chance of thunderstorms. Lows in the upper 40s. Highs 60 to
65. Winds generally less than 10 mph.
.THURSDAY...Partly cloudy. Showers likely and chance of
thunderstorms. Lows in the mid 40s. Highs in the lower 60s.
.FRIDAY...Partly cloudy. Chance of showers in the morning, then
chance of showers and thunderstorms in the afternoon. Highs in
the lower 60s.
$$
WYZ414-240915-
Salt and Wyoming Ranges/West Zone Bridger Teton NF-
Including the city of Afton
112 AM MDT Sat Aug 23 2025
.TODAY...
Sky/weather.........Partly cloudy then becoming mostly sunny.
Chance of thunder...0 percent.
Max temperature.....77-82.
24 hr trend......2 degrees cooler.
Min humidity........17-23 percent.
24 hr trend......3 percent wetter.
20-foot winds.......Southeast winds around 10 mph and gusty until
1200, then west with gusts to around 25 mph.
Ridge top winds.....Southeast around 15 mph until 1200, then west.
Chc of wetting rain.Zero percent.
Transport winds.....South around 15 mph until 1200, then west.
Mixing Height.......1600-3600 ft agl until 1200, then 8200-10200 ft
agl.
Smoke dispersal.....Poor until 1200, then very good to excellent.
.TONIGHT...
Sky/weather.........Partly cloudy.
Chance of thunder...0 percent.
Min temperature.....44-49.
24 hr trend......2 degrees warmer.
Max humidity........67-73 percent.
24 hr trend......23 percent drier.
Humidity recovery...Good.
20-foot winds.......Northwest winds around 10 mph with gusts to
around 25 mph until 2100, then
downslope/downvalley 4-7 mph.
Ridge top winds.....Northwest around 15 mph until 2400, then
southeast.
Chc of wetting rain.Zero percent.
Transport winds.....Northwest around 15 mph until 2400, then
southeast.
Mixing Height.......4200-6200 ft agl until 2400, then 400-1000 ft
agl.
Smoke dispersal.....Good until 2400, then poor.
.SUNDAY...
Sky/weather.........Partly cloudy then becoming mostly cloudy.
Chance of thunderstorms early in the afternoon.
Chance of showers in the afternoon. Slight
chance of thunderstorms late in the afternoon.
Chance of precipitation 40 percent.
Chance of thunder...30 percent.
Max temperature.....75-80.
24 hr trend......3 degrees cooler.
Min humidity........27-33 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 15 mph.
Ridge top winds.....South around 10 mph until 1200, then west.
Chc of wetting rain.Less than 5 percent.
Transport winds.....South around 10 mph until 1200, then west.
Mixing Height.......1800-3800 ft agl until 1200, then 6200-8200 ft
agl.
Smoke dispersal.....Poor until 1200, then good to very good.
.Forecast days 3 through 7......
.SUNDAY NIGHT...Mostly cloudy with chance of showers and slight
chance of thunderstorms. Lows around 50. Winds generally less
than 10 mph.
.MONDAY THROUGH TUESDAY...Mostly cloudy with showers and chance
of thunderstorms. Lows in the upper 40s. Highs 67 to 72. Winds
generally less than 10 mph.
.WEDNESDAY...Showers and chance of thunderstorms. Lows in the mid
40s. Highs in the lower 60s. Winds generally less than 10 mph.
.THURSDAY...Partly cloudy. Showers likely and chance of
thunderstorms. Lows in the mid 40s. Highs in the mid 60s.
.FRIDAY...Partly cloudy. Chance of showers in the morning, then
chance of showers and thunderstorms in the afternoon. Highs in
the mid 60s.
$$
WYZ277>279-240915-
Lincoln and Uinta Counties/Lower Elevations-
Upper Green River Basin/Rock Springs BLM-
Sweetwater County/Rock Springs BLM/Flaming Gorge NRA-
Including the cities of Evanston, Fort Bridger, Kemmerer,
Big Piney, Farson, Pinedale, Green River, Rock Springs,
and Wamsutter
112 AM MDT Sat Aug 23 2025
.TODAY...
Sky/weather.........Partly cloudy then becoming mostly sunny.
Chance of thunder...0 percent.
Max temperature.....76-81.
24 hr trend......1 degree cooler.
Min humidity........22-28 percent.
24 hr trend......4 percent wetter.
20-foot winds.......Northeast winds around 10 mph until 1200, then
upslope/upvalley 5-9 mph until 1500, then
northwest around 10 mph. Gusts up to 25 mph.
Ridge top winds.....Northeast around 15 mph until 1200, then
northwest.
Chc of wetting rain.Zero percent.
Transport winds.....Northeast around 15 mph until 1200, then
northwest.
Mixing Height.......800-2800 ft agl until 1200, then 6600-8600 ft
agl.
Smoke dispersal.....Poor until 1200, then good to very good.
.TONIGHT...
Sky/weather.........Partly cloudy.
Chance of thunder...0 percent.
Min temperature.....47-52.
24 hr trend......1 degree warmer.
Max humidity........64-70 percent.
24 hr trend......19 percent drier.
Humidity recovery...Good.
20-foot winds.......North winds around 10 mph until 2100, then
northeast. Gusts up to 20 mph.
Ridge top winds.....Northeast around 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....North around 15 mph until 2400, then northeast.
Mixing Height.......4800-6800 ft agl until 2400, then 400-600 ft
agl.
Smoke dispersal.....Good until 2400, then poor.
.SUNDAY...
Sky/weather.........Partly cloudy then becoming mostly cloudy.
Slight chance of thunderstorms early in the
afternoon. Chance of showers in the afternoon.
Chance of thunderstorms late in the afternoon.
Chance of precipitation 50 percent.
Chance of thunder...30 percent.
Max temperature.....74-79.
24 hr trend......2 degrees cooler.
Min humidity........36-42 percent.
24 hr trend......7 percent wetter.
20-foot winds.......Upslope/upvalley 5-9 mph. Gusts up to 15 mph.
Ridge top winds.....East around 10 mph until 1200, then southwest.
Chc of wetting rain.Zero percent.
Transport winds.....East around 10 mph until 1200, then west.
Mixing Height.......1000-3000 ft agl until 1200, then 5800-7800 ft
agl.
Smoke dispersal.....Poor until 1200, then fair to good.
.Forecast days 3 through 7......
.SUNDAY NIGHT...Cloudy with chance of showers and slight chance
of thunderstorms. Lows in the lower 50s. Winds generally less
than 10 mph.
.MONDAY...Mostly cloudy with showers and chance of thunderstorms.
Lows in the upper 40s. Highs in the mid 70s. Winds generally less
than 10 mph.
.TUESDAY THROUGH WEDNESDAY...Mostly cloudy with showers likely
and chance of thunderstorms. Lows 47 to 52. Highs 69 to 74. Winds
generally less than 10 mph.
.THURSDAY...Partly cloudy with showers likely and chance of
thunderstorms. Lows in the mid 40s. Highs around 70.
.FRIDAY...Partly cloudy. Chance of showers in the morning, then
chance of showers and thunderstorms in the afternoon. Highs
around 70.
$$
WYZ289-240915-
Granite/Green/Ferris/Rattlesnake Mountains-
Including the city of Jeffrey City
112 AM MDT Sat Aug 23 2025
.TODAY...
Sky/weather.........Partly cloudy then becoming mostly sunny.
Chance of thunder...0 percent.
Max temperature.....73-78.
24 hr trend......Unchanged.
Min humidity........28-34 percent.
24 hr trend......6 percent drier.
20-foot winds.......Northeast winds around 10 mph until 1200, then
upslope/upvalley 5-9 mph until 1500, then north
around 10 mph. Gusts up to 20 mph.
Ridge top winds.....Northeast 10 to 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Northeast around 15 mph until 1200, then
northwest.
Mixing Height.......600-2600 ft agl until 1200, then 5400-7400 ft
agl.
Smoke dispersal.....Poor until 1200, then good.
.TONIGHT...
Sky/weather.........Partly cloudy.
Chance of thunder...0 percent.
Min temperature.....48-53.
24 hr trend......1 degree cooler.
Max humidity........75-81 percent.
24 hr trend......6 percent drier.
Humidity recovery...Excellent.
20-foot winds.......Northeast winds around 10 mph with gusts to
around 25 mph.
Ridge top winds.....Northeast around 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Northeast around 15 mph.
Mixing Height.......3400-5400 ft agl until 2400, then 400-800 ft
agl.
Smoke dispersal.....Fair to good until 2400, then 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.....72-77.
24 hr trend......2 degrees cooler.
Min humidity........36-42 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.
Transport winds.....Northeast around 15 mph.
Mixing Height.......600-2600 ft agl until 1200, then 4400-6400 ft
agl.
Smoke dispersal.....Poor to fair.
.Forecast days 3 through 7......
.SUNDAY NIGHT...Cloudy. Chance of showers and thunderstorms in
the evening, then chance of showers and slight chance of
thunderstorms after midnight. Lows in the lower 50s. Northeast
winds around 10 mph.
.MONDAY...Mostly cloudy with showers likely and chance of
thunderstorms. Lows in the lower 50s. Highs in the lower 70s.
Winds generally less than 10 mph.
.TUESDAY...Mostly cloudy. Chance of showers and slight chance of
thunderstorms. Lows in the lower 50s. Highs in the mid 70s. Winds
generally less than 10 mph.
.WEDNESDAY...Mostly cloudy with showers likely and chance of
thunderstorms. Lows in the lower 50s. Highs in the lower 70s.
Winds generally less than 10 mph.
.THURSDAY...Partly cloudy with showers likely and chance of
thunderstorms. Lows around 50. Highs in the lower 70s.
.FRIDAY...Partly cloudy. Chance of showers in the morning, then
chance of showers and slight chance of thunderstorms in the
afternoon. Highs around 70.
$$
WYZ300-240915-
Casper Mountain-
112 AM MDT Sat Aug 23 2025
.TODAY...
Sky/weather.........Partly cloudy then becoming mostly sunny.
Chance of thunder...0 percent.
Max temperature.....70-75.
24 hr trend......1 degree cooler.
Min humidity........44-50 percent.
24 hr trend......6 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph until 0900, then
southeast 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.....Southeast around 10 mph until 1200, then
northeast.
Chc of wetting rain.Zero percent.
Transport winds.....South around 10 mph until 1200, then northwest.
Mixing Height.......800-2800 ft agl until 1200, then 4600-6600 ft
agl.
Smoke dispersal.....Poor to fair.
.TONIGHT...
Sky/weather.........Partly cloudy.
Chance of thunder...0 percent.
Min temperature.....48-53.
24 hr trend......2 degrees cooler.
Max humidity........82-88 percent.
24 hr trend......4 percent drier.
Humidity recovery...Excellent.
20-foot winds.......East winds around 10 mph until 2400, then
downslope/downvalley 4-7 mph. Gusts up to 15
mph.
Ridge top winds.....East 10 to 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....East 10 to 15 mph.
Mixing Height.......2000-4000 ft agl until 2400, then 200-600 ft
agl.
Smoke dispersal.....Poor.
.SUNDAY...
Sky/weather.........Partly cloudy. Slight chance of thunderstorms
early in the afternoon. Chance of showers in
the afternoon. Chance of thunderstorms late in
the afternoon. Chance of precipitation 40
percent.
Chance of thunder...30 percent.
Max temperature.....69-74.
24 hr trend......1 degree cooler.
Min humidity........54-60 percent.
24 hr trend......5 percent wetter.
20-foot winds.......Upslope/upvalley 5-9 mph until 1500, then east
around 10 mph. Gusts up to 15 mph.
Ridge top winds.....Northeast 10 to 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Northeast 10 to 15 mph.
Mixing Height.......800-2800 ft agl until 1200, then 3400-5400 ft
agl.
Smoke dispersal.....Poor to fair.
.Forecast days 3 through 7......
.SUNDAY NIGHT...Mostly cloudy. Chance of showers and
thunderstorms in the evening, then chance of showers and slight
chance of thunderstorms after midnight. Lows in the lower 50s.
Winds generally less than 10 mph.
.MONDAY...Mostly cloudy with chance of showers and thunderstorms.
Lows in the lower 50s. Highs in the upper 60s. Winds generally
less than 10 mph.
.TUESDAY...Mostly cloudy. Chance of showers and slight chance of
thunderstorms. Lows in the lower 50s. Highs in the lower 70s.
Winds generally less than 10 mph.
.WEDNESDAY...Mostly cloudy with chance of showers and
thunderstorms. Lows in the lower 50s. Highs around 70. Winds
generally less than 10 mph.
.THURSDAY...Mostly cloudy. Showers likely and chance of
thunderstorms. Lows in the lower 50s. Highs in the upper 60s.
.FRIDAY...Partly cloudy. Chance of showers in the morning, then
chance of showers and thunderstorms in the afternoon. Highs in
the mid 60s.
$$