Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS Riverton, WY
Issued by NWS Riverton, WY
037
FNUS55 KRIW 040929
FWFRIW
Fire Weather Planning Forecast for Western and Central Wyoming
National Weather Service Riverton WY
329 AM MDT Sat Oct 4 2025
.DISCUSSION...
...Yellowstone NP and Teton dispatch areas (includes fire weather
zones 140...414...415...and 416)...
A weather system will bring periods of showers and high elevation
snow today, with a good chance of a wetting rain for many locations.
Relative humidity will remain well above critical levels. Wind
should remain light to moderate. Mixing and smoke dispersal will be
generally fair to poor. Snow levels may fall as low as 6000 feet
by Sunday morning.
...Cody dispatch area (includes fire weather zones 275...276...
282...283...285...286...287...288...and 289)...
A weather system will bring periods of showers and high elevation
snow today, with a good chance of a wetting rain for many locations.
Relative humidity will remain well above critical levels. A gusty to
strong wind will develop in the northern zones late today and tonight.
Mixing and smoke dispersal will be generally fair to good. Snow levels
may fall as low as 6000 feet by Sunday morning.
...Casper dispatch area (includes fire weather zones 277...278...
279...280...281...285...289...and 300)...
A weather system will bring periods of showers and high elevation
snow today, with a good chance of a wetting rain for many locations,
especially in the western and northern zones.Relative humidity will
remain well above critical levels. A gusty to strong wind will develop
in the northern zones late today and tonight, with a gusty southwest
wind during the day from Rock Springs to Casper. Mixing and smoke
dispersal will range from fair in the north to very good in southern
Zone 279.
...Thunderstorms imply strong gusty and erratic winds...
WYZ280-051130-
Natrona County/Casper BLM-
Including the cities of Casper and Midwest
329 AM MDT Sat Oct 4 2025
.TODAY...
Sky/weather.........Partly cloudy then becoming 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.....62-67.
24 hr trend......17 degrees cooler.
Min humidity........47-53 percent.
24 hr trend......37 percent wetter.
20-foot winds.......Northeast winds around 10 mph until 1200, then
east until 1500, then southwest. Gusts up to 30
mph.
Ridge top winds.....Northeast around 15 mph until 1200, then
southwest.
Chc of wetting rain.10 percent until 1200, then 60 percent.
Transport winds.....Northeast around 15 mph until 1200, then south.
Mixing Height.......1000-3000 ft agl.
Smoke dispersal.....Poor to fair.
.TONIGHT...
Sky/weather.........Mostly cloudy. Slight chance of thunderstorms
in the evening. Showers through the night.
Chance of precipitation 90 percent.
Chance of thunder...20 percent.
Min temperature.....36-41.
24 hr trend......11 degrees cooler.
Max humidity........88-94 percent.
24 hr trend......13 percent wetter.
Humidity recovery...Excellent.
20-foot winds.......West winds around 15 mph with gusts to around
30 mph.
Ridge top winds.....West around 20 mph.
Chc of wetting rain.75 percent until 2400, then 60 percent.
Transport winds.....Northwest around 20 mph.
Mixing Height.......1000-2000 ft agl.
Smoke dispersal.....Poor.
.SUNDAY...
Sky/weather.........Mostly cloudy. Showers in the morning, then
showers likely in the afternoon. Chance of
showers 90 percent.
Chance of thunder...0 percent.
Max temperature.....44-49.
24 hr trend......18 degrees cooler.
Min humidity........75-81 percent.
24 hr trend......26 percent wetter.
20-foot winds.......North winds around 10 mph until 1200, then
northeast. Gusts up to 20 mph.
Ridge top winds.....North around 15 mph.
Chc of wetting rain.55 percent until 1200, then 30 percent.
Transport winds.....North around 15 mph.
Mixing Height.......1400-3000 ft agl.
Smoke dispersal.....Poor.
.Forecast days 3 through 7......
.SUNDAY NIGHT...Showers likely in the evening, then showers and
snow showers likely after midnight. Lows in the mid 30s.
Northeast winds around 15 mph.
.MONDAY...Partly cloudy. Chance of showers. Lows in the lower
30s. Highs around 50. Winds generally less than 10 mph.
.TUESDAY...Mostly clear. Lows in the upper 30s. Highs in the
upper 50s. Winds generally less than 10 mph.
.WEDNESDAY...Mostly clear. Lows around 40. Highs in the upper
60s. Southwest winds around 10 mph.
.THURSDAY THROUGH FRIDAY...Mostly clear. Lows in the upper 30s.
Highs 66 to 71.
$$
WYZ283-051130-
Upper Wind River Basin/Wind River Basin-
Including the cities of Crowheart, Lander, Riverton, and Shoshoni
329 AM MDT Sat Oct 4 2025
.TODAY...
Sky/weather.........Partly cloudy then becoming mostly cloudy.
Showers likely in the morning. Slight chance of
thunderstorms through the day. Showers in the
afternoon. Chance of precipitation near 100
percent.
Chance of thunder...20 percent.
Max temperature.....57-62.
24 hr trend......18 degrees cooler.
Min humidity........56-62 percent.
24 hr trend......38 percent wetter.
20-foot winds.......East winds 10 to 15 mph with gusts to around 30
mph.
Ridge top winds.....East 15 to 20 mph.
Chc of wetting rain.15 percent until 1200, then 75 percent.
Transport winds.....East 15 to 20 mph.
Mixing Height.......1400-3400 ft agl.
Smoke dispersal.....Poor to fair.
.TONIGHT...
Sky/weather.........Mostly cloudy. Slight chance of thunderstorms
early in the evening. Showers in the evening,
then showers likely after midnight. Chance of
precipitation near 100 percent.
Chance of thunder...10 percent.
Min temperature.....34-39.
24 hr trend......9 degrees cooler.
Max humidity........87-93 percent.
24 hr trend......10 percent wetter.
Humidity recovery...Excellent.
20-foot winds.......North winds around 15 mph with gusts to around
30 mph.
Ridge top winds.....North around 20 mph.
Chc of wetting rain.80 percent until 2400, then 30 percent.
Transport winds.....North around 20 mph.
Mixing Height.......1200-2400 ft agl.
Smoke dispersal.....Poor.
.SUNDAY...
Sky/weather.........Mostly cloudy. Showers in the morning, then
showers likely in the afternoon. Chance of
showers 90 percent.
Chance of thunder...0 percent.
Max temperature.....42-47.
24 hr trend......17 degrees cooler.
Min humidity........77-83 percent.
24 hr trend......23 percent wetter.
20-foot winds.......Northeast winds around 10 mph with higher
gusts.
Ridge top winds.....Northeast around 15 mph.
Chc of wetting rain.62 percent.
Transport winds.....Northeast around 15 mph.
Mixing Height.......1400-3400 ft agl.
Smoke dispersal.....Poor.
.Forecast days 3 through 7......
.SUNDAY NIGHT...Showers likely and snow showers in the evening,
then showers and snow showers likely after midnight. Lows in the
lower 30s. Northeast winds around 10 mph.
.MONDAY...Partly cloudy with slight chance of showers and snow
showers. Lows around 30. Highs in the upper 40s. Winds generally
less than 10 mph.
.TUESDAY...Mostly clear. Lows in the mid 30s. Highs in the mid
50s. Winds generally less than 10 mph.
.WEDNESDAY...Mostly clear. Lows in the upper 30s. Highs in the
mid 60s. Winds generally less than 10 mph.
.THURSDAY THROUGH FRIDAY...Mostly clear. Lows in the upper 30s.
Highs 64 to 69.
$$
WYZ285-051130-
South Bighorn Mountains-
329 AM MDT Sat Oct 4 2025
...WINTER WEATHER ADVISORY IN EFFECT FROM 6 PM THIS EVENING TO
6 PM MDT SUNDAY...
.TODAY...
Sky/weather.........Mostly cloudy. Showers likely in the morning.
Slight chance of thunderstorms through the day.
Showers in the afternoon. Chance of
precipitation near 100 percent.
Chance of thunder...20 percent.
Max temperature.....54-59.
24 hr trend......18 degrees cooler.
Min humidity........55-61 percent.
24 hr trend......42 percent wetter.
20-foot winds.......East winds 10 to 15 mph with gusts to around 25
mph.
Ridge top winds.....East 15 to 20 mph.
Chc of wetting rain.25 percent until 1200, then 75 percent.
Transport winds.....East 15 to 20 mph.
Mixing Height.......400-2400 ft agl.
Smoke dispersal.....Poor.
.TONIGHT...
Sky/weather.........Mostly cloudy. Chance of thunderstorms early in
the evening. Showers through the night. Snow
showers in the late evening and overnight. Snow
accumulation up to 1 inch. Chance of
precipitation near 100 percent.
Chance of thunder...30 percent.
Min temperature.....33-38.
24 hr trend......12 degrees cooler.
Max humidity........85-91 percent.
24 hr trend......15 percent wetter.
Humidity recovery...Excellent.
20-foot winds.......Northwest winds 15 to 20 mph with gusts to
around 40 mph.
Ridge top winds.....Northwest around 20 mph.
Chc of wetting rain.90 percent until 2400, then 80 percent.
Transport winds.....Northwest 20 to 25 mph.
Mixing Height.......800-1600 ft agl.
Smoke dispersal.....Poor.
.SUNDAY...
Sky/weather.........Mostly cloudy. Showers until late afternoon.
Snow showers through the day. Showers likely
early in the afternoon. Snow accumulation up to
3 inches. Chance of precipitation near 100
percent.
Chance of thunder...0 percent.
Max temperature.....37-42.
24 hr trend......17 degrees cooler.
Min humidity........80-86 percent.
24 hr trend......25 percent wetter.
20-foot winds.......Northwest winds around 10 mph with gusts to
around 30 mph until 1200, then northeast and
gusty.
Ridge top winds.....Northwest around 15 mph until 1200, then
northeast.
Chc of wetting rain.90 percent until 1200, then 80 percent.
Transport winds.....North around 15 mph.
Mixing Height.......600-1800 ft agl.
Smoke dispersal.....Poor.
.Forecast days 3 through 7......
.SUNDAY NIGHT...Snow showers and showers likely in the evening,
then snow showers and showers after midnight. Lows in the lower
30s. Northeast winds around 10 mph.
.MONDAY...Partly cloudy with chance of snow showers and showers.
Lows around 30. Highs in the lower 40s. Winds generally less than
10 mph.
.TUESDAY...Clear. Lows in the upper 30s. Highs in the lower 50s.
Southwest winds around 10 mph.
.WEDNESDAY...Clear. Lows in the lower 40s. Highs around 60.
Southwest winds around 10 mph.
.THURSDAY...Clear. Lows around 40. Highs around 60.
.FRIDAY...Mostly sunny. Highs in the lower 60s.
$$
WYZ281-051130-
Johnson County/Casper BLM-
Including the cities of Buffalo and Kaycee
329 AM MDT Sat Oct 4 2025
.TODAY...
Sky/weather.........Partly cloudy then becoming mostly cloudy.
Chance of showers. Slight chance of
thunderstorms in the late morning and
afternoon. Showers late in the afternoon.
Chance of precipitation 90 percent.
Chance of thunder...20 percent.
Max temperature.....57-62.
24 hr trend......23 degrees cooler.
Min humidity........56-62 percent.
24 hr trend......43 percent wetter.
20-foot winds.......North winds 10 to 15 mph with higher gusts.
Ridge top winds.....North around 15 mph.
Chc of wetting rain.10 percent until 1200, then 25 percent.
Transport winds.....North around 15 mph.
Mixing Height.......800-2800 ft agl.
Smoke dispersal.....Poor to fair.
.TONIGHT...
Sky/weather.........Cloudy. Chance of thunderstorms early in the
evening. Showers through the night. Chance of
precipitation near 100 percent.
Chance of thunder...30 percent.
Min temperature.....35-40.
24 hr trend......9 degrees cooler.
Max humidity........88-94 percent.
24 hr trend......14 percent wetter.
Humidity recovery...Excellent.
20-foot winds.......Breezy. North winds around 15 mph until 2100,
then northwest 20 to 25 mph. Gusts up to 45
mph.
Ridge top winds.....North 25 to 30 mph.
Chc of wetting rain.87 percent.
Transport winds.....Northwest 25 to 30 mph.
Mixing Height.......1400-2200 ft agl.
Smoke dispersal.....Poor to fair.
.SUNDAY...
Sky/weather.........Mostly cloudy. Showers in the morning, then
showers likely in the afternoon. Chance of
showers near 100 percent.
Chance of thunder...0 percent.
Max temperature.....42-47.
24 hr trend......16 degrees cooler.
Min humidity........76-82 percent.
24 hr trend......19 percent wetter.
20-foot winds.......North winds 10 to 15 mph. Gusts up to 30 mph
until 1200, then 20 mph.
Ridge top winds.....North 15 to 20 mph.
Chc of wetting rain.45 percent until 1200, then 35 percent.
Transport winds.....North around 20 mph.
Mixing Height.......1600-3200 ft agl.
Smoke dispersal.....Poor to fair.
.Forecast days 3 through 7......
.SUNDAY NIGHT...Showers likely in the evening, then showers and
snow showers likely after midnight. Lows in the mid 30s.
Northeast winds around 10 mph.
.MONDAY...Mostly clear with slight chance of showers. Lows in the
lower 30s. Highs in the lower 50s. Winds generally less than
10 mph.
.TUESDAY...Clear. Lows in the upper 30s. Highs in the lower 60s.
South winds around 10 mph.
.WEDNESDAY...Clear. Lows in the lower 40s. Highs in the lower
70s. Southwest winds around 10 mph.
.THURSDAY THROUGH FRIDAY...Mostly clear. Lows around 40. Highs
68 to 73.
$$
WYZ282-051130-
South Bighorn Basin/Worland BLM-
Including the cities of Ten Sleep, Thermopolis, and Worland
329 AM MDT Sat Oct 4 2025
.TODAY...
Sky/weather.........Mostly cloudy. Chance of showers in the
morning. Slight chance of thunderstorms through
the day. Showers in the afternoon. Chance of
precipitation 90 percent.
Chance of thunder...20 percent.
Max temperature.....57-62.
24 hr trend......22 degrees cooler.
Min humidity........59-65 percent.
24 hr trend......47 percent wetter.
20-foot winds.......Northwest winds 10 to 15 mph. Gusts up to 20
mph until 1200, then 35 mph.
Ridge top winds.....Northwest 15 to 20 mph.
Chc of wetting rain.10 percent until 1200, then 60 percent.
Transport winds.....Northwest 15 to 20 mph.
Mixing Height.......800-2800 ft agl.
Smoke dispersal.....Poor.
.TONIGHT...
Sky/weather.........Cloudy. Slight chance of thunderstorms early in
the evening. Showers through the night. Chance
of precipitation near 100 percent.
Chance of thunder...20 percent.
Min temperature.....33-38.
24 hr trend......9 degrees cooler.
Max humidity........84-90 percent.
24 hr trend......3 percent wetter.
Humidity recovery...Excellent.
20-foot winds.......Breezy. Northwest winds 20 to 25 mph with gusts
to around 45 mph.
Ridge top winds.....Northwest around 25 mph.
Chc of wetting rain.90 percent until 2400, then 55 percent.
Transport winds.....Northwest around 25 mph.
Mixing Height.......1200-2200 ft agl.
Smoke dispersal.....Poor to fair.
.SUNDAY...
Sky/weather.........Cloudy. Showers. Chance of showers 90 percent.
Chance of thunder...0 percent.
Max temperature.....41-46.
24 hr trend......13 degrees cooler.
Min humidity........72-78 percent.
24 hr trend......12 percent wetter.
20-foot winds.......Northwest winds 10 to 15 mph with gusts to
around 30 mph.
Ridge top winds.....Northwest 15 to 20 mph.
Chc of wetting rain.67 percent.
Transport winds.....Northwest 15 to 20 mph.
Mixing Height.......1600-3600 ft agl.
Smoke dispersal.....Poor to fair.
.Forecast days 3 through 7......
.SUNDAY NIGHT...Showers likely in the evening, then showers and
snow showers likely after midnight. Lows in the mid 30s. North
winds around 10 mph.
.MONDAY...Mostly clear. Slight chance of showers. Lows in the
lower 30s. Highs in the lower 50s. Winds generally less than
10 mph.
.TUESDAY...Clear. Lows in the upper 30s. Highs around 60. Winds
generally less than 10 mph.
.WEDNESDAY...Clear. Lows around 40. Highs in the upper 60s. Winds
generally less than 10 mph.
.THURSDAY...Clear. Lows around 40. Highs in the upper 60s.
.FRIDAY...Mostly sunny. Highs in the upper 60s.
$$
WYZ275-051130-
North Bighorn Basin/Worland BLM-
Including the cities of Greybull, Lovell, and Powell
329 AM MDT Sat Oct 4 2025
.TODAY...
Sky/weather.........Mostly cloudy. Chance of showers in the
morning. Slight chance of thunderstorms through
the day. Showers in the afternoon. Chance of
precipitation near 100 percent.
Chance of thunder...20 percent.
Max temperature.....53-58.
24 hr trend......22 degrees cooler.
Min humidity........62-68 percent.
24 hr trend......46 percent wetter.
20-foot winds.......Breezy. Northwest winds around 15 mph with
gusts to around 40 mph until 1500, then around
25 mph with gusts to around 40 mph.
Ridge top winds.....Northwest 20 to 25 mph.
Chc of wetting rain.20 percent until 1200, then 65 percent.
Transport winds.....North 20 to 25 mph.
Mixing Height.......600-2400 ft agl.
Smoke dispersal.....Poor.
.TONIGHT...
Sky/weather.........Cloudy. Slight chance of thunderstorms early in
the evening. Showers through the night. Chance
of precipitation near 100 percent.
Chance of thunder...10 percent.
Min temperature.....33-38.
24 hr trend......9 degrees cooler.
Max humidity........83-89 percent.
24 hr trend......3 percent wetter.
Humidity recovery...Excellent.
20-foot winds.......Breezy. Northwest winds 20 to 25 mph with gusts
to around 45 mph.
Ridge top winds.....Northwest 25 to 30 mph.
Chc of wetting rain.90 percent until 2400, then 55 percent.
Transport winds.....Northwest 25 to 30 mph.
Mixing Height.......1000-1800 ft agl.
Smoke dispersal.....Poor to fair.
.SUNDAY...
Sky/weather.........Mostly cloudy. Showers in the morning, then
showers likely in the afternoon. Chance of
showers 90 percent.
Chance of thunder...0 percent.
Max temperature.....41-46.
24 hr trend......10 degrees cooler.
Min humidity........65-71 percent.
24 hr trend......1 percent drier.
20-foot winds.......Northwest winds 15 to 20 mph with gusts to
around 30 mph.
Ridge top winds.....Northwest around 20 mph.
Chc of wetting rain.42 percent.
Transport winds.....North around 20 mph.
Mixing Height.......1400-3400 ft agl.
Smoke dispersal.....Poor to fair.
.Forecast days 3 through 7......
.SUNDAY NIGHT...Mostly cloudy. Showers and snow showers likely in
the evening, then chance of showers and snow showers after
midnight. Lows in the mid 30s. Northwest winds around 10 mph.
.MONDAY...Mostly clear. Lows in the lower 30s. Highs in the lower
50s. Winds generally less than 10 mph.
.TUESDAY...Clear. Lows in the upper 30s. Highs around 60. Winds
generally less than 10 mph.
.WEDNESDAY...Clear. Lows around 40. Highs in the upper 60s. Winds
generally less than 10 mph.
.THURSDAY THROUGH FRIDAY...Clear. Lows around 40. Highs in the
upper 60s.
$$
WYZ276-051130-
Cody Foothills-
Including the cities of Clark, Cody, and Meeteetse
329 AM MDT Sat Oct 4 2025
.TODAY...
Sky/weather.........Cloudy. Showers likely in the morning. Slight
chance of thunderstorms through the day.
Showers in the afternoon. Chance of
precipitation near 100 percent.
Chance of thunder...20 percent.
Max temperature.....48-53.
24 hr trend......24 degrees cooler.
Min humidity........67-73 percent.
24 hr trend......51 percent wetter.
20-foot winds.......North winds 10 to 15 mph until 1200, then
around 20 mph. Gusts up to 35 mph.
Ridge top winds.....North 20 to 25 mph.
Chc of wetting rain.35 percent until 1200, then 70 percent.
Transport winds.....North 20 to 25 mph.
Mixing Height.......800-2200 ft agl.
Smoke dispersal.....Poor to fair.
.TONIGHT...
Sky/weather.........Cloudy. Showers early in the evening, then
showers likely in the late evening and
overnight. Snow showers in the late evening and
overnight. No snow accumulation. Chance of
precipitation near 100 percent.
Chance of thunder...0 percent.
Min temperature.....34-39.
24 hr trend......10 degrees cooler.
Max humidity........86-92 percent.
24 hr trend......2 percent wetter.
Humidity recovery...Excellent.
20-foot winds.......North winds 15 to 20 mph. Gusts up to 40 mph
until 2400, then 30 mph.
Ridge top winds.....North 20 to 25 mph.
Chc of wetting rain.80 percent until 2400, then 55 percent.
Transport winds.....North 20 to 25 mph.
Mixing Height.......1000-2200 ft agl.
Smoke dispersal.....Poor to fair.
.SUNDAY...
Sky/weather.........Cloudy. Showers and snow showers. Snow
accumulation up to 2 inches. Chance of
precipitation 90 percent.
Chance of thunder...0 percent.
Max temperature.....38-43.
24 hr trend......10 degrees cooler.
Min humidity........74-80 percent.
24 hr trend......3 percent wetter.
20-foot winds.......North winds around 15 mph with gusts to around
30 mph.
Ridge top winds.....North around 20 mph.
Chc of wetting rain.80 percent until 1200, then 70 percent.
Transport winds.....North around 20 mph.
Mixing Height.......1400-3400 ft agl.
Smoke dispersal.....Poor to fair.
.Forecast days 3 through 7......
.SUNDAY NIGHT...Mostly cloudy. Showers and snow showers likely in
the evening, then chance of snow showers and showers after
midnight. Lows around 30. Winds generally less than 10 mph.
.MONDAY...Mostly clear. Lows in the lower 30s. Highs in the upper
40s. Winds generally less than 10 mph.
.TUESDAY...Clear. Lows in the upper 30s. Highs in the upper 50s.
South winds around 10 mph.
.WEDNESDAY...Clear. Lows in the lower 40s. Highs in the mid 60s.
Southwest winds around 10 mph.
.THURSDAY THROUGH FRIDAY...Mostly clear. Lows in the lower 40s.
Highs 63 to 68.
$$
WYZ287-051130-
Owl Creek Mountains-
329 AM MDT Sat Oct 4 2025
.TODAY...
Sky/weather.........Mostly cloudy. Showers likely in the morning.
Slight chance of thunderstorms through the day.
Showers in the afternoon. Chance of
precipitation near 100 percent.
Chance of thunder...20 percent.
Max temperature.....51-56.
24 hr trend......21 degrees cooler.
Min humidity........62-68 percent.
24 hr trend......45 percent wetter.
20-foot winds.......Northeast winds 10 to 15 mph until 1500, then
north around 20 mph. Gusts up to 30 mph.
Ridge top winds.....North 15 to 20 mph.
Chc of wetting rain.20 percent until 1200, then 80 percent.
Transport winds.....North 15 to 20 mph.
Mixing Height.......400-2400 ft agl.
Smoke dispersal.....Poor.
.TONIGHT...
Sky/weather.........Cloudy. Slight chance of thunderstorms in the
evening. Showers and snow showers through the
night. Snow accumulation up to 1 inch. Chance
of precipitation near 100 percent.
Chance of thunder...10 percent.
Min temperature.....32-37.
24 hr trend......9 degrees cooler.
Max humidity........87-93 percent.
24 hr trend......3 percent wetter.
Humidity recovery...Excellent.
20-foot winds.......Breezy. North winds 20 to 25 mph with gusts to
around 45 mph.
Ridge top winds.....North 25 to 30 mph.
Chc of wetting rain.90 percent until 2400, then 55 percent.
Transport winds.....North 25 to 30 mph.
Mixing Height.......600-2000 ft agl.
Smoke dispersal.....Poor.
.SUNDAY...
Sky/weather.........Cloudy. Showers and snow showers. Snow
accumulation up to 2 inches. Chance of
precipitation 90 percent.
Chance of thunder...0 percent.
Max temperature.....37-42.
24 hr trend......13 degrees cooler.
Min humidity........81-87 percent.
24 hr trend......11 percent wetter.
20-foot winds.......North winds 10 to 15 mph. Gusts up to 30 mph
until 1200, then 20 mph.
Ridge top winds.....North 15 to 20 mph.
Chc of wetting rain.80 percent.
Transport winds.....North 15 to 20 mph.
Mixing Height.......800-2600 ft agl.
Smoke dispersal.....Poor.
.Forecast days 3 through 7......
.SUNDAY NIGHT...Snow showers and showers in the evening, then
snow showers and showers likely after midnight. Lows in the lower
30s. North winds around 10 mph.
.MONDAY...Mostly clear. Slight chance of showers and snow
showers. Lows in the lower 30s. Highs in the mid 40s. Winds
generally less than 10 mph.
.TUESDAY...Clear. Lows in the upper 30s. Highs in the lower 50s.
Winds generally less than 10 mph.
.WEDNESDAY...Clear. Lows around 40. Highs around 60. Southwest
winds around 10 mph.
.THURSDAY THROUGH FRIDAY...Mostly clear. Lows around 40. Highs
60 to 65.
$$
WYZ286-051130-
Absaroka Mountains/North Shoshone NF-
Including the city of Pahaska
329 AM MDT Sat Oct 4 2025
...WINTER WEATHER ADVISORY IN EFFECT FROM NOON TODAY TO 6 PM MDT
SUNDAY...
.TODAY...
Sky/weather.........Mostly cloudy. Showers and slight chance of
thunderstorms through the day. Snow showers in
the afternoon. Snow accumulation up to 1 inch.
Chance of precipitation near 100 percent.
Chance of thunder...20 percent.
Max temperature.....44-49.
24 hr trend......17 degrees cooler.
Min humidity........70-76 percent.
24 hr trend......44 percent wetter.
20-foot winds.......South winds around 10 mph until 0900, then
east. Gusts up to 25 mph.
Ridge top winds.....East around 15 mph.
Chc of wetting rain.65 percent until 1200, then 90 percent.
Transport winds.....East around 15 mph.
Mixing Height.......400-2200 ft agl.
Smoke dispersal.....Poor.
.TONIGHT...
Sky/weather.........Cloudy. Showers and slight chance of
thunderstorms in the evening. Snow showers
through the night. Showers likely after
midnight. Snow accumulation up to 4 inches.
Chance of precipitation near 100 percent.
Chance of thunder...10 percent.
Min temperature.....29-34.
24 hr trend......9 degrees cooler.
Max humidity........85-91 percent.
24 hr trend......Unchanged.
Humidity recovery...Excellent.
20-foot winds.......Northwest winds around 10 mph until 0300, then
downslope/downvalley 4-7 mph. Gusts up to 20
mph.
Ridge top winds.....Northwest 10 to 15 mph.
Chc of wetting rain.85 percent until 2400, then 60 percent.
Transport winds.....Northwest 10 to 15 mph.
Mixing Height.......600-1800 ft agl.
Smoke dispersal.....Poor.
.SUNDAY...
Sky/weather.........Mostly cloudy. Snow showers. Snow accumulation
up to 5 inches. Chance of snow near 100
percent.
Chance of thunder...0 percent.
Max temperature.....32-37.
24 hr trend......11 degrees cooler.
Min humidity........76-82 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.....Northeast 10 to 15 mph.
Chc of wetting rain.87 percent.
Transport winds.....North around 10 mph until 1200, then east.
Mixing Height.......800-2800 ft agl.
Smoke dispersal.....Poor.
.Forecast days 3 through 7......
.SUNDAY NIGHT...Mostly cloudy. Snow showers likely in the
evening, then chance of snow showers after midnight. Lows in the
lower 20s. Winds generally less than 10 mph.
.MONDAY...Mostly clear. Slight chance of snow showers. Lows in
the mid 20s. Highs around 40. Winds generally less than 10 mph.
.TUESDAY THROUGH WEDNESDAY...Clear. Lows 30 to 35. Highs 47 to
52. West winds around 10 mph.
.THURSDAY THROUGH FRIDAY...Mostly clear. Lows in the mid 30s.
Highs 52 to 57.
$$
WYZ140-051130-
Yellowstone National Park-
Including the cities of Lake, Mammoth, and Old Faithful
329 AM MDT Sat Oct 4 2025
.TODAY...
Sky/weather.........Cloudy. Showers and slight chance of
thunderstorms through the day. Snow showers in
the afternoon. Little or no snow accumulation.
Chance of precipitation near 100 percent.
Chance of thunder...20 percent.
Max temperature.....42-47.
24 hr trend......18 degrees cooler.
Min humidity........72-78 percent.
24 hr trend......46 percent wetter.
20-foot winds.......North winds around 10 mph with higher gusts.
Ridge top winds.....North around 15 mph.
Chc of wetting rain.60 percent until 1200, then 85 percent.
Transport winds.....Northeast around 15 mph.
Mixing Height.......400-2000 ft agl.
Smoke dispersal.....Poor.
.TONIGHT...
Sky/weather.........Cloudy. Slight chance of thunderstorms in the
evening. Snow showers and showers likely
through the night. Snow accumulation up to 2
inches. Chance of precipitation 70 percent.
Chance of thunder...10 percent.
Min temperature.....26-31.
24 hr trend......8 degrees cooler.
Max humidity........87-93 percent.
24 hr trend......1 percent drier.
Humidity recovery...Excellent.
20-foot winds.......Northwest winds around 10 mph until 2400, then
downslope/downvalley 4-7 mph. Gusts up to 15
mph.
Ridge top winds.....Northwest 10 to 15 mph.
Chc of wetting rain.45 percent until 2400, then 30 percent.
Transport winds.....North 10 to 15 mph.
Mixing Height.......600-1800 ft agl.
Smoke dispersal.....Poor.
.SUNDAY...
Sky/weather.........Mostly cloudy. Snow showers. Snow accumulation
up to 3 inches. Chance of snow 90 percent.
Chance of thunder...0 percent.
Max temperature.....37-42.
24 hr trend......5 degrees cooler.
Min humidity........70-76 percent.
24 hr trend......11 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph.
Ridge top winds.....North around 10 mph.
Chc of wetting rain.65 percent until 1200, then 75 percent.
Transport winds.....Northeast around 10 mph.
Mixing Height.......1000-3000 ft agl.
Smoke dispersal.....Poor.
.Forecast days 3 through 7......
.SUNDAY NIGHT...Partly cloudy. Chance of snow showers in the
evening, then slight chance of snow showers after midnight. Lows
around 19. Winds generally less than 10 mph.
.MONDAY...Mostly clear. Lows in the lower 20s. Highs in the mid
40s. Winds generally less than 10 mph.
.TUESDAY THROUGH WEDNESDAY...Clear. Lows 26 to 31. Highs 50 to
55. Winds generally less than 10 mph.
.THURSDAY THROUGH FRIDAY...Mostly clear. Lows around 30. Highs
55 to 60.
$$
WYZ415-051130-
North Zone Bridger Teton NF and Grand Teton NP-
Including the cities of Jackson and Moran
329 AM MDT Sat Oct 4 2025
...WINTER WEATHER ADVISORY IN EFFECT FROM NOON TODAY TO 6 PM MDT
SUNDAY...
.TODAY...
Sky/weather.........Cloudy. Showers and slight chance of
thunderstorms through the day. Snow showers in
the afternoon. Little or no snow accumulation.
Chance of precipitation near 100 percent.
Chance of thunder...20 percent.
Max temperature.....44-49.
24 hr trend......15 degrees cooler.
Min humidity........77-83 percent.
24 hr trend......39 percent wetter.
20-foot winds.......East winds around 10 mph until 1200, then west.
Gusts up to 20 mph.
Ridge top winds.....East around 15 mph until 1200, then west.
Chc of wetting rain.70 percent until 1200, then 90 percent.
Transport winds.....Northeast around 15 mph until 1200, then
northwest.
Mixing Height.......600-2600 ft agl.
Smoke dispersal.....Poor.
.TONIGHT...
Sky/weather.........Cloudy. Showers, snow showers and slight chance
of thunderstorms in the evening, then snow
showers and showers likely after midnight. Snow
accumulation up to 2 inches. Chance of
precipitation near 100 percent.
Chance of thunder...10 percent.
Min temperature.....26-31.
24 hr trend......8 degrees cooler.
Max humidity........90-96 percent.
24 hr trend......Unchanged.
Humidity recovery...Excellent.
20-foot winds.......Northwest winds around 10 mph until 2400, then
downslope/downvalley 4-7 mph. Gusts up to 15
mph.
Ridge top winds.....Northwest 10 to 15 mph.
Chc of wetting rain.80 percent until 2400, then 35 percent.
Transport winds.....Northwest 10 to 15 mph.
Mixing Height.......1000-2000 ft agl.
Smoke dispersal.....Poor.
.SUNDAY...
Sky/weather.........Mostly cloudy. Showers likely in the morning.
Snow showers through the day. Showers in the
afternoon. Snow accumulation up to 3 inches.
Chance of precipitation 90 percent.
Chance of thunder...0 percent.
Max temperature.....38-43.
24 hr trend......5 degrees cooler.
Min humidity........73-79 percent.
24 hr trend......10 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph.
Ridge top winds.....West around 10 mph.
Chc of wetting rain.45 percent until 1200, then 80 percent.
Transport winds.....Northwest around 10 mph.
Mixing Height.......1600-3600 ft agl.
Smoke dispersal.....Poor.
.Forecast days 3 through 7......
.SUNDAY NIGHT...Mostly cloudy. Snow showers likely and chance of
showers in the evening, then chance of snow showers and showers
after midnight. Lows in the mid 20s. Winds generally less than
10 mph.
.MONDAY...Mostly clear with slight chance of snow showers. Lows
in the lower 20s. Highs in the mid 40s. Winds generally less than
10 mph.
.TUESDAY THROUGH WEDNESDAY...Clear. Lows 27 to 32. Highs 49 to
54. Winds generally less than 10 mph.
.THURSDAY THROUGH FRIDAY...Mostly clear. Lows in the lower 30s.
Highs 55 to 60.
$$
WYZ416-051130-
West Wind River Mountains/East Zone Bridger Teton NF-
329 AM MDT Sat Oct 4 2025
.TODAY...
Sky/weather.........Mostly cloudy. Showers and slight chance of
thunderstorms through the day. Snow showers in
the afternoon. Snow accumulation up to 1 inch.
Chance of precipitation near 100 percent.
Chance of thunder...20 percent.
Max temperature.....46-51.
24 hr trend......12 degrees cooler.
Min humidity........66-72 percent.
24 hr trend......30 percent wetter.
20-foot winds.......Southeast winds around 15 mph until 1200, then
southwest. Gusts up to 30 mph.
Ridge top winds.....Southeast around 20 mph until 1200, then
southwest.
Chc of wetting rain.75 percent until 1200, then 90 percent.
Transport winds.....Southeast around 20 mph until 1200, then south.
Mixing Height.......1200-3200 ft agl.
Smoke dispersal.....Poor to fair.
.TONIGHT...
Sky/weather.........Cloudy. Snow showers, showers and slight chance
of thunderstorms in the evening, then snow
showers likely and chance of showers after
midnight. Snow accumulation up to 2 inches.
Chance of precipitation near 100 percent.
Chance of thunder...10 percent.
Min temperature.....26-31.
24 hr trend......8 degrees cooler.
Max humidity........87-93 percent.
24 hr trend......1 percent wetter.
Humidity recovery...Excellent.
20-foot winds.......West winds around 10 mph until 0300, then
downslope/downvalley 4-7 mph. Gusts up to 20
mph.
Ridge top winds.....West 10 to 15 mph.
Chc of wetting rain.75 percent until 2400, then 30 percent.
Transport winds.....Northwest 10 to 15 mph.
Mixing Height.......800-1800 ft agl.
Smoke dispersal.....Poor.
.SUNDAY...
Sky/weather.........Mostly cloudy. Snow showers likely in the
morning, then snow showers in the afternoon.
Showers likely early in the afternoon. Snow
accumulation up to 3 inches. Chance of
precipitation 90 percent.
Chance of thunder...0 percent.
Max temperature.....36-41.
24 hr trend......9 degrees cooler.
Min humidity........74-80 percent.
24 hr trend......2 percent wetter.
20-foot winds.......Upslope/upvalley 5-9 mph until 1200, then
southwest around 10 mph. Gusts up to 15 mph.
Ridge top winds.....West around 10 mph until 1200, then southwest.
Chc of wetting rain.45 percent until 1200, then 75 percent.
Transport winds.....Northwest around 10 mph until 1200, then
southwest.
Mixing Height.......1200-3200 ft agl.
Smoke dispersal.....Poor.
.Forecast days 3 through 7......
.SUNDAY NIGHT...Mostly cloudy. Snow showers likely in the
evening, then chance of snow showers after midnight. Lows in the
lower 20s. Winds generally less than 10 mph.
.MONDAY...Partly cloudy with slight chance of snow showers. Lows
in the lower 20s. Highs around 40. Winds generally less than
10 mph.
.TUESDAY THROUGH WEDNESDAY...Mostly clear. Lows 27 to 32. Highs
45 to 50. West winds around 10 mph.
.THURSDAY THROUGH FRIDAY...Mostly clear. Lows in the lower 30s.
Highs 51 to 56.
$$
WYZ288-051130-
East Wind River Mountains/South Shoshone NF-
Including the cities of Dubois and South Pass
329 AM MDT Sat Oct 4 2025
...WINTER WEATHER ADVISORY IN EFFECT FROM NOON TODAY TO 6 PM MDT
SUNDAY...
.TODAY...
Sky/weather.........Partly cloudy then becoming mostly cloudy.
Showers and slight chance of thunderstorms
through the day. Snow showers in the afternoon.
Little or no snow accumulation. Chance of
precipitation near 100 percent.
Chance of thunder...20 percent.
Max temperature.....48-53.
24 hr trend......15 degrees cooler.
Min humidity........67-73 percent.
24 hr trend......39 percent wetter.
20-foot winds.......Southeast winds 10 to 15 mph with gusts to
around 25 mph until 1200, then south around 20
mph with gusts to around 35 mph until 1500,
then southwest with gusts to around 35 mph.
Ridge top winds.....South 15 to 20 mph.
Chc of wetting rain.45 percent until 1200, then 85 percent.
Transport winds.....Southeast around 15 mph until 1200, then south
around 25 mph.
Mixing Height.......1000-3000 ft agl.
Smoke dispersal.....Poor to fair.
.TONIGHT...
Sky/weather.........Mostly cloudy. Showers and slight chance of
thunderstorms in the evening. Snow showers
through the night. Showers likely after
midnight. Snow accumulation up to 2 inches.
Chance of precipitation near 100 percent.
Chance of thunder...10 percent.
Min temperature.....27-32.
24 hr trend......9 degrees cooler.
Max humidity........85-91 percent.
24 hr trend......5 percent wetter.
Humidity recovery...Excellent.
20-foot winds.......West winds 10 to 15 mph with gusts to around 30
mph until 0300, then downslope/downvalley 4-7
mph.
Ridge top winds.....West around 15 mph.
Chc of wetting rain.80 percent until 2400, then 50 percent.
Transport winds.....West around 15 mph.
Mixing Height.......800-2000 ft agl.
Smoke dispersal.....Poor.
.SUNDAY...
Sky/weather.........Mostly cloudy. Showers in the morning. Snow
showers through the day. Showers likely in the
afternoon. Snow accumulation up to 5 inches.
Chance of precipitation 90 percent.
Chance of thunder...0 percent.
Max temperature.....33-38.
24 hr trend......14 degrees cooler.
Min humidity........76-82 percent.
24 hr trend......17 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.70 percent.
Transport winds.....Northeast 10 to 15 mph.
Mixing Height.......600-2200 ft agl.
Smoke dispersal.....Poor.
.Forecast days 3 through 7......
.SUNDAY NIGHT...Snow showers with showers likely in the evening,
then snow showers likely after midnight. Lows in the mid 20s.
Winds generally less than 10 mph.
.MONDAY...Partly cloudy with slight chance of snow showers. Lows
in the mid 20s. Highs around 40. Winds generally less than
10 mph.
.TUESDAY THROUGH WEDNESDAY...Mostly clear. Lows 32 to 37. Highs
47 to 52. West winds around 10 mph.
.THURSDAY THROUGH FRIDAY...Mostly clear. Lows in the mid 30s.
Highs 53 to 58.
$$
WYZ414-051130-
Salt and Wyoming Ranges/West Zone Bridger Teton NF-
Including the city of Afton
329 AM MDT Sat Oct 4 2025
.TODAY...
Sky/weather.........Mostly cloudy. Showers and slight chance of
thunderstorms through the day. Snow showers in
the afternoon. Little or no snow accumulation.
Chance of precipitation near 100 percent.
Chance of thunder...20 percent.
Max temperature.....41-46.
24 hr trend......17 degrees cooler.
Min humidity........76-82 percent.
24 hr trend......38 percent wetter.
20-foot winds.......East winds around 10 mph until 0900, then south
until 1200, then west. Gusts up to 20 mph.
Ridge top winds.....Southeast around 15 mph until 1200, then west.
Chc of wetting rain.75 percent until 1200, then 85 percent.
Transport winds.....Northeast around 15 mph until 1200, then west.
Mixing Height.......600-2600 ft agl.
Smoke dispersal.....Poor.
.TONIGHT...
Sky/weather.........Cloudy. Showers, snow showers and slight chance
of thunderstorms in the evening, then snow
showers and showers likely after midnight. Snow
accumulation up to 1 inch. Chance of
precipitation 90 percent.
Chance of thunder...10 percent.
Min temperature.....27-32.
24 hr trend......6 degrees cooler.
Max humidity........93-99 percent.
24 hr trend......1 percent wetter.
Humidity recovery...Excellent.
20-foot winds.......West winds 10 to 15 mph with gusts to around 30
mph.
Ridge top winds.....West 15 to 20 mph.
Chc of wetting rain.60 percent until 2400, then 20 percent.
Transport winds.....Northwest 15 to 20 mph.
Mixing Height.......800-2000 ft agl.
Smoke dispersal.....Poor.
.SUNDAY...
Sky/weather.........Mostly cloudy. Showers likely in the morning.
Snow showers likely through the day. Showers in
the afternoon. Snow accumulation up to 1 inch.
Chance of precipitation 80 percent.
Chance of thunder...0 percent.
Max temperature.....40-45.
24 hr trend......2 degrees cooler.
Min humidity........70-76 percent.
24 hr trend......9 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph.
Ridge top winds.....West around 10 mph.
Chc of wetting rain.10 percent until 1200, then 60 percent.
Transport winds.....West around 10 mph.
Mixing Height.......1600-3600 ft agl.
Smoke dispersal.....Poor.
.Forecast days 3 through 7......
.SUNDAY NIGHT...Mostly cloudy with chance of snow showers and
showers. Lows in the upper 20s. Winds generally less than 10 mph.
.MONDAY...Mostly clear with slight chance of showers and snow
showers. Lows in the mid 20s. Highs in the mid 40s. Winds
generally less than 10 mph.
.TUESDAY THROUGH WEDNESDAY...Mostly clear. Lows 30 to 35. Highs
52 to 57. Winds generally less than 10 mph.
.THURSDAY...Mostly clear. Lows in the mid 30s. Highs in the upper
50s.
.FRIDAY...Mostly sunny. Slight chance of showers in the
afternoon. Highs around 60.
$$
WYZ278-051130-
Upper Green River Basin/Rock Springs BLM-
Including the cities of Big Piney, Farson, and Pinedale
329 AM MDT Sat Oct 4 2025
.TODAY...
Sky/weather.........Mostly cloudy. Chance of showers early in the
morning. Slight chance of thunderstorms through
the day. Showers likely early in the morning.
Chance of precipitation 70 percent.
Chance of thunder...20 percent.
Max temperature.....48-53.
24 hr trend......16 degrees cooler.
Min humidity........63-69 percent.
24 hr trend......34 percent wetter.
20-foot winds.......East winds around 15 mph until 0900. Southwest
after 1200. Gusts up to 35 mph.
Ridge top winds.....Southeast around 20 mph until 1200, then
southwest.
Chc of wetting rain.40 percent until 1200, then 60 percent.
Transport winds.....Southeast around 20 mph until 1200, then
southwest.
Mixing Height.......2200-4200 ft agl.
Smoke dispersal.....Fair to good.
.TONIGHT...
Sky/weather.........Mostly cloudy. Slight chance of thunderstorms
early in the evening. Chance of showers through
the night. Chance of snow showers after
midnight. Chance of precipitation 50 percent.
Chance of thunder...10 percent.
Min temperature.....28-33.
24 hr trend......7 degrees cooler.
Max humidity........89-95 percent.
24 hr trend......2 percent wetter.
Humidity recovery...Excellent.
20-foot winds.......West winds 15 to 20 mph until 0300, then around
10 mph. Gusts up to 30 mph.
Ridge top winds.....West 15 to 20 mph.
Chc of wetting rain.25 percent until 2400, then 5 percent.
Transport winds.....West 15 to 20 mph.
Mixing Height.......800-2800 ft agl.
Smoke dispersal.....Poor.
.SUNDAY...
Sky/weather.........Mostly cloudy. Chance of snow showers in the
morning. Chance of showers through the day.
Chance of precipitation 50 percent.
Chance of thunder...0 percent.
Max temperature.....43-48.
24 hr trend......6 degrees cooler.
Min humidity........61-67 percent.
24 hr trend......Unchanged.
20-foot winds.......Upslope/upvalley 5-9 mph until 1500, then south
around 10 mph. Gusts up to 15 mph.
Ridge top winds.....West around 10 mph until 1200, then south.
Chc of wetting rain.5 percent until 1200, then 25 percent.
Transport winds.....Northwest around 10 mph until 1200, then south.
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...Mostly cloudy. Chance of showers and snow showers
in the evening, then chance of snow showers and slight chance of
showers after midnight. Lows in the upper 20s. Winds generally
less than 10 mph.
.MONDAY THROUGH TUESDAY...Mostly clear. Lows 25 to 30. Highs
51 to 56. Winds generally less than 10 mph.
.WEDNESDAY...Mostly clear. Lows in the lower 30s. Highs in the
lower 60s. Winds generally less than 10 mph.
.THURSDAY THROUGH FRIDAY...Mostly clear. Lows in the lower 30s.
Highs in the mid 60s.
$$
WYZ277-051130-
Lincoln and Uinta Counties/Lower Elevations-
Including the cities of Evanston, Fort Bridger, and Kemmerer
329 AM MDT Sat Oct 4 2025
.TODAY...
Sky/weather.........Mostly cloudy. Showers and slight chance of
thunderstorms. Chance of precipitation near 100
percent.
Chance of thunder...20 percent.
Max temperature.....46-51.
24 hr trend......22 degrees cooler.
Min humidity........67-73 percent.
24 hr trend......43 percent wetter.
20-foot winds.......North winds around 10 mph with gusts to around
25 mph until 0900, then west 15 to 20 mph with
gusts to around 35 mph.
Ridge top winds.....West around 15 mph until 1200, then around 25
mph.
Chc of wetting rain.67 percent.
Transport winds.....North around 15 mph until 1200, then west
around 25 mph.
Mixing Height.......1000-3000 ft agl.
Smoke dispersal.....Poor to fair.
.TONIGHT...
Sky/weather.........Mostly cloudy. Chance of showers through the
night. Chance of snow showers after midnight.
Chance of precipitation 50 percent.
Chance of thunder...0 percent.
Min temperature.....30-35.
24 hr trend......5 degrees cooler.
Max humidity........89-95 percent.
24 hr trend......Unchanged.
Humidity recovery...Excellent.
20-foot winds.......West winds 15 to 20 mph until 0300, then around
10 mph. Gusts up to 35 mph.
Ridge top winds.....West 20 to 25 mph.
Chc of wetting rain.10 percent until 2400, then zero percent.
Transport winds.....West 20 to 25 mph.
Mixing Height.......600-2400 ft agl.
Smoke dispersal.....Poor.
.SUNDAY...
Sky/weather.........Mostly cloudy. Chance of snow showers in the
morning. Chance of showers through the day.
Chance of precipitation 50 percent.
Chance of thunder...0 percent.
Max temperature.....44-49.
24 hr trend......Unchanged.
Min humidity........57-63 percent.
24 hr trend......14 percent drier.
20-foot winds.......West winds around 10 mph until 0900, then
upslope/upvalley 5-9 mph until 1500, then west
around 10 mph. Gusts up to 15 mph.
Ridge top winds.....West 10 to 15 mph.
Chc of wetting rain.Less than 5 percent.
Transport winds.....West 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 with slight chance of showers and
snow showers. Lows around 30. Winds generally less than 10 mph.
.MONDAY THROUGH TUESDAY...Mostly clear. Lows 27 to 32. Highs
52 to 57. Winds generally less than 10 mph.
.WEDNESDAY...Mostly clear. Lows in the lower 30s. Highs in the
lower 60s. Winds generally less than 10 mph.
.THURSDAY THROUGH FRIDAY...Mostly clear. Lows in the mid 30s.
Highs in the mid 60s.
$$
WYZ279-051130-
Sweetwater County/Rock Springs BLM/Flaming Gorge NRA-
Including the cities of Green River, Rock Springs, and Wamsutter
329 AM MDT Sat Oct 4 2025
.TODAY...
Sky/weather.........Partly cloudy. Chance of showers and slight
chance of thunderstorms. Chance of
precipitation 50 percent.
Chance of thunder...20 percent.
Max temperature.....51-56.
24 hr trend......18 degrees cooler.
Min humidity........49-55 percent.
24 hr trend......31 percent wetter.
20-foot winds.......South winds 15 to 20 mph until 1200, then
southwest. Gusts up to 35 mph.
Ridge top winds.....South around 20 mph until 1200, then southwest.
Chc of wetting rain.15 percent until 1200, then 25 percent.
Transport winds.....Southwest 25 to 30 mph.
Mixing Height.......1600-3600 ft agl until 1200, then 4600-6600 ft
agl.
Smoke dispersal.....Fair to good until 1200, then very good.
.TONIGHT...
Sky/weather.........Mostly cloudy. Slight chance of thunderstorms
early in the evening. Chance of showers until
early morning. Slight chance of showers early
in the morning. Chance of precipitation 50
percent.
Chance of thunder...10 percent.
Min temperature.....34-39.
24 hr trend......8 degrees cooler.
Max humidity........85-91 percent.
24 hr trend......5 percent wetter.
Humidity recovery...Excellent.
20-foot winds.......West winds 15 to 20 mph with gusts to around 35
mph.
Ridge top winds.....West 20 to 25 mph.
Chc of wetting rain.10 percent until 2400, then zero percent.
Transport winds.....West 20 to 25 mph.
Mixing Height.......1000-3000 ft agl.
Smoke dispersal.....Poor to fair.
.SUNDAY...
Sky/weather.........Mostly cloudy. Slight chance of showers in the
morning. Chance of showers in the afternoon.
Chance of showers 50 percent.
Chance of thunder...0 percent.
Max temperature.....46-51.
24 hr trend......5 degrees cooler.
Min humidity........64-70 percent.
24 hr trend......7 percent wetter.
20-foot winds.......West winds around 10 mph until 1200, then
upslope/upvalley 5-9 mph until 1500, then
northwest around 10 mph. Gusts up to 15 mph.
Ridge top winds.....Northwest 10 to 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West around 15 mph until 1200, then southwest.
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...Mostly cloudy with slight chance of showers. Lows
in the lower 30s. Northeast winds around 10 mph.
.MONDAY...Partly cloudy. Lows around 30. Highs in the lower 50s.
Winds generally less than 10 mph.
.TUESDAY THROUGH WEDNESDAY...Mostly clear. Lows in the mid 30s.
Highs 59 to 64. Winds generally less than 10 mph.
.THURSDAY THROUGH FRIDAY...Mostly clear. Lows in the upper 30s.
Highs in the mid 60s.
$$
WYZ289-051130-
Granite/Green/Ferris/Rattlesnake Mountains-
Including the city of Jeffrey City
329 AM MDT Sat Oct 4 2025
.TODAY...
Sky/weather.........Partly cloudy then becoming mostly cloudy.
Showers likely and slight chance of
thunderstorms. Chance of precipitation 70
percent.
Chance of thunder...20 percent.
Max temperature.....58-63.
24 hr trend......16 degrees cooler.
Min humidity........46-52 percent.
24 hr trend......31 percent wetter.
20-foot winds.......South winds 10 to 15 mph until 1200, then
southwest around 20 mph. Gusts up to 35 mph.
Ridge top winds.....South 20 to 25 mph.
Chc of wetting rain.5 percent until 1200, then 55 percent.
Transport winds.....South 20 to 25 mph.
Mixing Height.......800-2800 ft agl until 1200, then 3400-5400 ft
agl.
Smoke dispersal.....Poor to fair until 1200, then good to very
good.
.TONIGHT...
Sky/weather.........Mostly cloudy. Slight chance of thunderstorms
early in the evening. Showers likely through
the night. Snow showers likely early in the
morning. No snow accumulation. Chance of
precipitation 70 percent.
Chance of thunder...10 percent.
Min temperature.....34-39.
24 hr trend......11 degrees cooler.
Max humidity........85-91 percent.
24 hr trend......11 percent wetter.
Humidity recovery...Excellent.
20-foot winds.......West winds 15 to 20 mph with gusts to around 35
mph.
Ridge top winds.....West 20 to 25 mph.
Chc of wetting rain.45 percent until 2400, then 20 percent.
Transport winds.....West 20 to 25 mph.
Mixing Height.......1200-3000 ft agl.
Smoke dispersal.....Poor to fair.
.SUNDAY...
Sky/weather.........Mostly cloudy. Snow showers likely in the
morning. Showers likely through the day. No
snow accumulation. Chance of precipitation 70
percent.
Chance of thunder...0 percent.
Max temperature.....41-46.
24 hr trend......16 degrees cooler.
Min humidity........68-74 percent.
24 hr trend......24 percent wetter.
20-foot winds.......North winds around 10 mph until 1200, then
northeast. Gusts up to 20 mph.
Ridge top winds.....North around 15 mph until 1200, then northeast.
Chc of wetting rain.27 percent.
Transport winds.....North around 15 mph.
Mixing Height.......1200-3200 ft agl.
Smoke dispersal.....Poor.
.Forecast days 3 through 7......
.SUNDAY NIGHT...Showers and snow showers likely. Lows in the
lower 30s. Northeast winds around 10 mph.
.MONDAY...Partly cloudy with slight chance of showers and snow
showers. Lows around 30. Highs in the upper 40s. Winds generally
less than 10 mph.
.TUESDAY...Mostly clear. Lows in the mid 30s. Highs in the mid
50s. Winds generally less than 10 mph.
.WEDNESDAY...Mostly clear. Lows in the upper 30s. Highs in the
lower 60s. Southwest winds around 10 mph.
.THURSDAY THROUGH FRIDAY...Mostly clear. Lows in the upper 30s.
Highs 62 to 67.
$$
WYZ300-051130-
Casper Mountain-
329 AM MDT Sat Oct 4 2025
.TODAY...
Sky/weather.........Mostly cloudy. Showers likely in the morning,
then showers and slight chance of thunderstorms
in the afternoon. Chance of precipitation 90
percent.
Chance of thunder...20 percent.
Max temperature.....59-64.
24 hr trend......13 degrees cooler.
Min humidity........45-51 percent.
24 hr trend......32 percent wetter.
20-foot winds.......South winds 10 to 15 mph. Gusts up to 25 mph
until 1200, then 35 mph.
Ridge top winds.....South 15 to 20 mph.
Chc of wetting rain.15 percent until 1200, then 75 percent.
Transport winds.....South around 15 mph until 1200, then southwest
around 25 mph.
Mixing Height.......800-2800 ft agl.
Smoke dispersal.....Poor to fair.
.TONIGHT...
Sky/weather.........Mostly cloudy. Slight chance of thunderstorms
early in the evening. Showers likely through
the night. Snow showers likely early in the
morning. No snow accumulation. Chance of
precipitation 70 percent.
Chance of thunder...20 percent.
Min temperature.....33-38.
24 hr trend......14 degrees cooler.
Max humidity........88-94 percent.
24 hr trend......22 percent wetter.
Humidity recovery...Excellent.
20-foot winds.......West winds around 15 mph. Gusts up to 30 mph.
Ridge top winds.....West around 20 mph.
Chc of wetting rain.45 percent until 2400, then 55 percent.
Transport winds.....West around 20 mph.
Mixing Height.......400-2000 ft agl.
Smoke dispersal.....Poor.
.SUNDAY...
Sky/weather.........Cloudy. Showers and snow showers likely in the
morning, then chance of showers and snow
showers in the afternoon. Little or no snow
accumulation. Chance of precipitation 70
percent.
Chance of thunder...0 percent.
Max temperature.....39-44.
24 hr trend......19 degrees cooler.
Min humidity........80-86 percent.
24 hr trend......29 percent wetter.
20-foot winds.......Northwest winds around 10 mph until 1200, then
upslope/upvalley 5-9 mph. Gusts up to 20 mph.
Ridge top winds.....Northwest around 15 mph until 1200, then north.
Chc of wetting rain.30 percent until 1200, then 15 percent.
Transport winds.....Northwest 10 to 15 mph.
Mixing Height.......800-2400 ft agl.
Smoke dispersal.....Poor.
.Forecast days 3 through 7......
.SUNDAY NIGHT...Showers and snow showers likely. Lows in the
lower 30s. East winds around 10 mph.
.MONDAY...Partly cloudy. Chance of showers and snow showers. Lows
in the lower 30s. Highs in the mid 40s. Winds generally less than
10 mph.
.TUESDAY...Mostly clear. Lows in the upper 30s. Highs in the mid
50s. Winds generally less than 10 mph.
.WEDNESDAY...Mostly clear. Lows around 40. Highs in the lower
60s. Southwest winds around 10 mph.
.THURSDAY THROUGH FRIDAY...Mostly clear. Lows in the upper 30s.
Highs 59 to 64.
$$