Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS Riverton, WY
Issued by NWS Riverton, WY
281
FNUS55 KRIW 181202
FWFRIW
Fire Weather Planning Forecast for Western and Central Wyoming
National Weather Service Riverton WY
501 AM MST Tue Nov 18 2025
.DISCUSSION...
***This product is currently automated with no discussion
and will not be refreshed with all forecast updates. It should
be used for planning purposes only. If you need additional fire
weather information, please contact the NWS office in Riverton,
Wyoming. The human written discussion section along with the fire
weather forecast will resume regular operations sometime in
Spring 2026.***
---Thunderstorms imply strong gusty and erratic winds---
WYZ280-182300-
Natrona County/Casper BLM-
Including the cities of Casper and Midwest
501 AM MST Tue Nov 18 2025
.TODAY...
Sky/weather.........Mostly cloudy.
Chance of thunder...0 percent.
Max temperature.....49-54.
24 hr trend......4 degrees warmer.
Min humidity........44-50 percent.
24 hr trend......16 percent drier.
20-foot winds.......Southwest winds 10 to 15 mph with higher gusts.
Ridge top winds.....Southwest 15 to 20 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest 15 to 20 mph.
Mixing Height.......400-2200 ft agl until 1200, then 1600-3600 ft
agl until 1700, then 800-1000 ft agl.
Smoke dispersal.....Poor to fair.
.TONIGHT...
Sky/weather.........Partly cloudy.
Chance of thunder...0 percent.
Min temperature.....33-38.
24 hr trend......5 degrees cooler.
Max humidity........79-85 percent.
24 hr trend......5 percent drier.
Humidity recovery...Excellent.
20-foot winds.......Southwest winds 10 to 15 mph and gusty.
Ridge top winds.....Southwest 15 to 20 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest 15 to 20 mph.
Mixing Height.......400-800 ft agl.
Smoke dispersal.....Poor.
.WEDNESDAY...
Sky/weather.........Partly cloudy then becoming mostly sunny then
becoming partly cloudy.
Chance of thunder...0 percent.
Max temperature.....50-55.
24 hr trend......Unchanged.
Min humidity........46-52 percent.
24 hr trend......1 percent drier.
20-foot winds.......Southwest winds around 10 mph until 1500, then
northwest. Gusts up to 20 mph.
Ridge top winds.....West around 15 mph until 1600, then northwest.
Chc of wetting rain.Zero percent.
Transport winds.....West around 15 mph until 1600, then north.
Mixing Height.......600-2600 ft agl until 1200, then 2600-4200 ft
agl until 1600, then 400-1800 ft agl.
Smoke dispersal.....Poor.
.Forecast days 3 through 7......
.WEDNESDAY NIGHT...Partly cloudy. Lows in the upper 20s. Winds
generally less than 10 mph.
.THURSDAY...Mostly clear. Lows in the upper 20s. Highs around 50.
Winds generally less than 10 mph.
.FRIDAY...Partly cloudy. Lows in the upper 20s. Highs in the
lower 50s. Southwest winds around 10 mph.
.SATURDAY...Mostly clear. Lows around 30. Highs around 50.
Southwest winds around 15 mph.
.SUNDAY...Mostly clear. Lows in the upper 20s. Highs in the lower
50s.
.MONDAY...Partly cloudy. Highs in the upper 40s.
$$
WYZ283-182300-
Upper Wind River Basin/Wind River Basin-
Including the cities of Crowheart, Lander, Riverton, and Shoshoni
501 AM MST Tue Nov 18 2025
.TODAY...
Sky/weather.........Mostly cloudy then becoming partly cloudy.
Chance of thunder...0 percent.
Max temperature.....46-51.
24 hr trend......2 degrees warmer.
Min humidity........53-59 percent.
24 hr trend......22 percent drier.
20-foot winds.......South winds around 10 mph and gusty.
Ridge top winds.....South 10 to 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest 10 to 15 mph.
Mixing Height.......800-2800 ft agl until 1300, then 2600-3600 ft
agl until 1600, then 600-1600 ft agl.
Smoke dispersal.....Poor.
.TONIGHT...
Sky/weather.........Partly cloudy.
Chance of thunder...0 percent.
Min temperature.....29-34.
24 hr trend......7 degrees cooler.
Max humidity........78-84 percent.
24 hr trend......6 percent drier.
Humidity recovery...Excellent.
20-foot winds.......Southwest winds around 10 mph with gusts to
around 15 mph.
Ridge top winds.....Southwest 10 to 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest 10 to 15 mph.
Mixing Height.......600-800 ft agl.
Smoke dispersal.....Poor.
.WEDNESDAY...
Sky/weather.........Partly cloudy.
Chance of thunder...0 percent.
Max temperature.....45-50.
24 hr trend......Unchanged.
Min humidity........53-59 percent.
24 hr trend......4 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph. Gusts up to 10 mph.
Ridge top winds.....Southwest around 10 mph until 1100. Northeast
after 1300.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest around 10 mph until 1300, then
southeast until 1600, then east.
Mixing Height.......800-2800 ft agl until 1700, then 400-600 ft
agl.
Smoke dispersal.....Poor.
.Forecast days 3 through 7......
.WEDNESDAY NIGHT...Mostly clear. Lows in the upper 20s. Winds
generally less than 10 mph.
.THURSDAY THROUGH SATURDAY...Mostly clear. Lows in the upper 20s.
Highs 46 to 51. Southwest winds around 10 mph.
.SUNDAY...Mostly clear. Lows in the upper 20s. Highs around 50.
.MONDAY...Partly cloudy. Highs in the upper 40s.
$$
WYZ285-182300-
South Bighorn Mountains-
501 AM MST Tue Nov 18 2025
.TODAY...
Sky/weather.........Mostly cloudy. Slight chance of rain showers
early in the morning. Chance of showers 20
percent.
Chance of thunder...0 percent.
Max temperature.....43-48.
24 hr trend......3 degrees warmer.
Min humidity........58-64 percent.
24 hr trend......16 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph until 0900, then
southwest around 10 mph with higher gusts.
Ridge top winds.....Southwest 10 to 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest 10 to 15 mph.
Mixing Height.......600-2600 ft agl.
Smoke dispersal.....Poor.
.TONIGHT...
Sky/weather.........Partly cloudy.
Chance of thunder...0 percent.
Min temperature.....30-35.
24 hr trend......6 degrees cooler.
Max humidity........73-79 percent.
24 hr trend......13 percent drier.
Humidity recovery...Excellent.
20-foot winds.......Southwest winds 10 to 15 mph and gusty.
Ridge top winds.....Southwest 15 to 20 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest 15 to 20 mph.
Mixing Height.......200-600 ft agl.
Smoke dispersal.....Poor.
.WEDNESDAY...
Sky/weather.........Partly cloudy.
Chance of thunder...0 percent.
Max temperature.....43-48.
24 hr trend......1 degree cooler.
Min humidity........49-55 percent.
24 hr trend......8 percent drier.
20-foot winds.......Southwest winds around 10 mph until 1500, then
upslope/upvalley 5-9 mph.
Ridge top winds.....Southwest 10 to 15 mph until 1500, then south
until 1600, then east.
Chc of wetting rain.Zero percent.
Transport winds.....West 10 to 15 mph until 1500. East after 1600.
Mixing Height.......1200-3200 ft agl until 1700, then 200-600 ft
agl.
Smoke dispersal.....Poor.
.Forecast days 3 through 7......
.WEDNESDAY NIGHT...Partly cloudy. Lows around 30. Winds generally
less than 10 mph.
.THURSDAY THROUGH SATURDAY...Mostly clear. Lows around 30. Highs
in the mid 40s. Southwest winds around 10 mph.
.SUNDAY THROUGH MONDAY...Partly cloudy. Lows in the upper 20s.
Highs 42 to 47.
$$
WYZ281-182300-
Johnson County/Casper BLM-
Including the cities of Buffalo and Kaycee
501 AM MST Tue Nov 18 2025
.TODAY...
Sky/weather.........Mostly cloudy.
Chance of thunder...0 percent.
Max temperature.....48-53.
24 hr trend......2 degrees warmer.
Min humidity........52-58 percent.
24 hr trend......9 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph until 1200, then south
around 10 mph. Gusts up to 15 mph.
Ridge top winds.....South 10 to 15 mph until 1500, then around 15
mph.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest 10 to 15 mph until 1500, then south.
Mixing Height.......1000-3000 ft agl until 1600, then 400-1000 ft
agl.
Smoke dispersal.....Poor.
.TONIGHT...
Sky/weather.........Mostly cloudy then becoming partly cloudy.
Chance of thunder...0 percent.
Min temperature.....33-38.
24 hr trend......4 degrees cooler.
Max humidity........79-85 percent.
24 hr trend......1 percent drier.
Humidity recovery...Excellent.
20-foot winds.......Southwest winds around 10 mph until 0300, then
downslope/downvalley 4-7 mph. Gusts up to 15
mph.
Ridge top winds.....Southwest around 15 mph until 2400, then west.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest around 15 mph until 2300, then west.
Mixing Height.......400-600 ft agl.
Smoke dispersal.....Poor.
.WEDNESDAY...
Sky/weather.........Partly cloudy.
Chance of thunder...0 percent.
Max temperature.....46-51.
24 hr trend......4 degrees cooler.
Min humidity........54-60 percent.
24 hr trend......5 percent wetter.
20-foot winds.......Upslope/upvalley 5-9 mph. Gusts up to 15 mph.
Ridge top winds.....West around 10 mph until 1000, then north.
Chc of wetting rain.Zero percent.
Transport winds.....West around 10 mph until 0900, then north.
Mixing Height.......600-2600 ft agl until 1200, then 1400-3400 ft
agl until 1700, then 600-800 ft agl.
Smoke dispersal.....Poor.
.Forecast days 3 through 7......
.WEDNESDAY NIGHT...Partly cloudy. Lows in the upper 20s. Winds
generally less than 10 mph.
.THURSDAY THROUGH SATURDAY...Mostly clear. Lows around 30. Highs
51 to 56. Southwest winds around 10 mph.
.SUNDAY THROUGH MONDAY...Partly cloudy. Lows in the upper 20s.
Highs 50 to 55.
$$
WYZ282-182300-
South Bighorn Basin/Worland BLM-
Including the cities of Ten Sleep, Thermopolis, and Worland
501 AM MST Tue Nov 18 2025
.TODAY...
Sky/weather.........Mostly cloudy. Slight chance of rain showers
early in the morning. Chance of showers 20
percent.
Chance of thunder...0 percent.
Max temperature.....46-51.
24 hr trend......2 degrees warmer.
Min humidity........60-66 percent.
24 hr trend......16 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph. 10 mph after 1200
until 1500.
Ridge top winds.....South around 10 mph.
Chc of wetting rain.Zero percent.
Transport winds.....South around 10 mph.
Mixing Height.......400-2400 ft agl until 1300, then 1000-3000 ft
agl until 1700, then 600-800 ft agl.
Smoke dispersal.....Poor.
.TONIGHT...
Sky/weather.........Partly cloudy.
Chance of thunder...0 percent.
Min temperature.....28-33.
24 hr trend......8 degrees cooler.
Max humidity........78-84 percent.
24 hr trend......2 percent drier.
Humidity recovery...Excellent.
20-foot winds.......Downslope/downvalley 4-7 mph. 10 mph after 2100
until 2400.
Ridge top winds.....South around 10 mph.
Chc of wetting rain.Zero percent.
Transport winds.....South around 10 mph.
Mixing Height.......400-600 ft agl.
Smoke dispersal.....Poor.
.WEDNESDAY...
Sky/weather.........Partly cloudy.
Chance of thunder...0 percent.
Max temperature.....45-50.
24 hr trend......1 degree cooler.
Min humidity........48-54 percent.
24 hr trend......7 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph.
Ridge top winds.....South around 10 mph until 1200, then northwest
until 1300, then north.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest around 10 mph until 1200. North after
1300.
Mixing Height.......400-2400 ft agl until 1300, then 1400-3400 ft
agl until 1700, then 400-600 ft agl.
Smoke dispersal.....Poor.
.Forecast days 3 through 7......
.WEDNESDAY NIGHT...Mostly clear. Lows in the upper 20s. Winds
generally less than 10 mph.
.THURSDAY THROUGH SATURDAY...Mostly clear. Lows in the upper 20s.
Highs in the lower 50s. Winds generally less than 10 mph.
.SUNDAY THROUGH MONDAY...Partly cloudy. Lows in the upper 20s.
Highs 49 to 54.
$$
WYZ275-182300-
North Bighorn Basin/Worland BLM-
Including the cities of Greybull, Lovell, and Powell
501 AM MST Tue Nov 18 2025
.TODAY...
Sky/weather.........Mostly cloudy. Slight chance of rain showers
late in the morning. Chance of showers 20
percent.
Chance of thunder...0 percent.
Max temperature.....44-49.
24 hr trend......Unchanged.
Min humidity........58-64 percent.
24 hr trend......6 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph.
Ridge top winds.....Southeast 10 to 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Southeast 10 to 15 mph.
Mixing Height.......800-2800 ft agl until 1700, then 400-800 ft
agl.
Smoke dispersal.....Poor.
.TONIGHT...
Sky/weather.........Mostly cloudy then becoming partly cloudy.
Chance of thunder...0 percent.
Min temperature.....29-34.
24 hr trend......8 degrees cooler.
Max humidity........79-85 percent.
24 hr trend......4 percent wetter.
Humidity recovery...Excellent.
20-foot winds.......Downslope/downvalley 4-7 mph.
Ridge top winds.....South around 10 mph.
Chc of wetting rain.Zero percent.
Transport winds.....South around 10 mph.
Mixing Height.......400-800 ft agl.
Smoke dispersal.....Poor.
.WEDNESDAY...
Sky/weather.........Partly cloudy.
Chance of thunder...0 percent.
Max temperature.....42-47.
24 hr trend......3 degrees cooler.
Min humidity........52-58 percent.
24 hr trend......1 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph.
Ridge top winds.....South around 10 mph until 1000, then north.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest around 10 mph until 0900, then
northwest.
Mixing Height.......200-2200 ft agl until 1300, then 1200-2800 ft
agl until 1700, then 400-800 ft agl.
Smoke dispersal.....Poor.
.Forecast days 3 through 7......
.WEDNESDAY NIGHT...Mostly clear. Lows in the upper 20s. Winds
generally less than 10 mph.
.THURSDAY THROUGH SATURDAY...Mostly clear. Lows in the upper 20s.
Highs around 50. Winds generally less than 10 mph.
.SUNDAY...Partly cloudy. Lows in the upper 20s. Highs in the
lower 50s.
.MONDAY...Partly cloudy with slight chance of showers and snow
showers. Highs in the upper 40s.
$$
WYZ276-182300-
Cody Foothills-
Including the cities of Clark, Cody, and Meeteetse
501 AM MST Tue Nov 18 2025
.TODAY...
Sky/weather.........Mostly cloudy.
Chance of thunder...0 percent.
Max temperature.....48-53.
24 hr trend......1 degree cooler.
Min humidity........49-55 percent.
24 hr trend......2 percent drier.
20-foot winds.......Southwest winds around 10 mph until 0900, then
upslope/upvalley 5-9 mph.
Ridge top winds.....Southwest 10 to 15 mph until 1200, then south.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest 10 to 15 mph.
Mixing Height.......600-2200 ft agl until 1100, then 2800-4800 ft
agl until 1600, then 800-2600 ft agl.
Smoke dispersal.....Poor.
.TONIGHT...
Sky/weather.........Mostly cloudy then becoming partly cloudy.
Chance of thunder...0 percent.
Min temperature.....32-37.
24 hr trend......7 degrees cooler.
Max humidity........64-70 percent.
24 hr trend......1 percent drier.
Humidity recovery...Good.
20-foot winds.......Downslope/downvalley 4-7 mph until 2100, then
west around 10 mph until 0300, then
downslope/downvalley 4-7 mph. Gusts up to 15
mph.
Ridge top winds.....Southwest 10 to 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West 10 to 15 mph.
Mixing Height.......600-1000 ft agl.
Smoke dispersal.....Poor.
.WEDNESDAY...
Sky/weather.........Partly cloudy.
Chance of thunder...0 percent.
Max temperature.....44-49.
24 hr trend......4 degrees cooler.
Min humidity........53-59 percent.
24 hr trend......5 percent wetter.
20-foot winds.......Upslope/upvalley 5-9 mph. Gusts up to 10 mph.
Ridge top winds.....West around 10 mph until 1000, then northeast.
Chc of wetting rain.Zero percent.
Transport winds.....Northwest around 10 mph until 1100. Northeast
after 1400.
Mixing Height.......400-2200 ft agl until 1100, then 1800-3800 ft
agl until 1700, then 1000-1400 ft agl.
Smoke dispersal.....Poor.
.Forecast days 3 through 7......
.WEDNESDAY NIGHT...Mostly clear. Lows around 30. Winds generally
less than 10 mph.
.THURSDAY THROUGH SATURDAY...Mostly clear. Lows 30 to 35. Highs
48 to 53. Southwest winds around 10 mph.
.SUNDAY...Partly cloudy with slight chance of showers. Lows in
the lower 30s. Highs in the lower 50s.
.MONDAY...Partly cloudy. Slight chance of showers in the morning,
then slight chance of showers and snow showers in the afternoon.
Highs in the upper 40s.
$$
WYZ287-182300-
Owl Creek Mountains-
501 AM MST Tue Nov 18 2025
.TODAY...
Sky/weather.........Mostly cloudy.
Chance of thunder...0 percent.
Max temperature.....43-48.
24 hr trend......Unchanged.
Min humidity........58-64 percent.
24 hr trend......10 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph until 1200, then
southeast around 10 mph until 1500, then
upslope/upvalley 5-9 mph.
Ridge top winds.....South 10 to 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....South 10 to 15 mph.
Mixing Height.......1000-3000 ft agl until 1700, then 200-600 ft
agl.
Smoke dispersal.....Poor.
.TONIGHT...
Sky/weather.........Partly cloudy.
Chance of thunder...0 percent.
Min temperature.....30-35.
24 hr trend......6 degrees cooler.
Max humidity........71-77 percent.
24 hr trend......15 percent drier.
Humidity recovery...Excellent.
20-foot winds.......Downslope/downvalley 4-7 mph.
Ridge top winds.....West around 10 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest around 10 mph until 2100, then west.
Mixing Height.......200-600 ft agl.
Smoke dispersal.....Poor.
.WEDNESDAY...
Sky/weather.........Partly cloudy.
Chance of thunder...0 percent.
Max temperature.....41-46.
24 hr trend......1 degree cooler.
Min humidity........51-57 percent.
24 hr trend......11 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph. Gusts up to 10 mph.
Ridge top winds.....Southwest around 10 mph until 1000, then
southeast until 1500, then east.
Chc of wetting rain.Zero percent.
Transport winds.....West around 10 mph until 0900, then southeast
until 1600, then east.
Mixing Height.......1200-3200 ft agl until 1700, then 400-600 ft
agl.
Smoke dispersal.....Poor.
.Forecast days 3 through 7......
.WEDNESDAY NIGHT...Mostly clear. Lows in the upper 20s. Winds
generally less than 10 mph.
.THURSDAY THROUGH SATURDAY...Mostly clear. Lows 27 to 32. Highs
43 to 48. Southwest winds around 10 mph.
.SUNDAY THROUGH MONDAY...Partly cloudy. Lows in the upper 20s.
Highs 43 to 48.
$$
WYZ286-182300-
Absaroka Mountains/North Shoshone NF-
Including the city of Pahaska
501 AM MST Tue Nov 18 2025
.TODAY...
Sky/weather.........Mostly cloudy.
Chance of thunder...0 percent.
Max temperature.....40-45.
24 hr trend......2 degrees cooler.
Min humidity........62-68 percent.
24 hr trend......6 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph until 0900, then west
around 10 mph. Gusts up to 15 mph.
Ridge top winds.....West 10 to 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West 10 to 15 mph.
Mixing Height.......1600-3600 ft agl until 1700, then 600-1400 ft
agl.
Smoke dispersal.....Poor.
.TONIGHT...
Sky/weather.........Mostly cloudy then becoming partly cloudy then
becoming mostly cloudy. Slight chance of snow
showers early in the morning. Chance of snow 20
percent.
Chance of thunder...0 percent.
Min temperature.....26-31.
24 hr trend......5 degrees cooler.
Max humidity........77-83 percent.
24 hr trend......8 percent drier.
Humidity recovery...Excellent.
20-foot winds.......West winds around 10 mph with gusts to around
15 mph.
Ridge top winds.....West around 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West around 15 mph.
Mixing Height.......400-1200 ft agl.
Smoke dispersal.....Poor.
.WEDNESDAY...
Sky/weather.........Mostly cloudy then becoming partly cloudy.
Slight chance of snow showers in the morning.
Chance of snow showers and slight chance of
rain showers late in the morning, then slight
chance of snow showers late in the afternoon.
Chance of precipitation 50 percent.
Chance of thunder...0 percent.
Max temperature.....36-41.
24 hr trend......2 degrees cooler.
Min humidity........62-68 percent.
24 hr trend......1 percent drier.
20-foot winds.......West winds around 10 mph until 1500, then
upslope/upvalley 5-9 mph. Gusts up to 15 mph.
Ridge top winds.....West 10 to 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West 10 to 15 mph.
Mixing Height.......1600-3600 ft agl until 1700, then 600-1200 ft
agl.
Smoke dispersal.....Poor.
.Forecast days 3 through 7......
.WEDNESDAY NIGHT...Partly cloudy. Slight chance of snow showers
in the evening. Lows in the mid 20s. Winds generally less than
10 mph.
.THURSDAY THROUGH SATURDAY...Mostly clear. Lows 23 to 28. Highs
38 to 43. West winds 10 to 15 mph.
.SUNDAY...Partly cloudy with slight chance of snow showers. Lows
in the mid 20s. Highs in the upper 30s.
.MONDAY...Partly cloudy with chance of snow showers. Highs in the
upper 30s.
$$
WYZ140-182300-
Yellowstone National Park-
Including the cities of Lake, Mammoth, and Old Faithful
501 AM MST Tue Nov 18 2025
.TODAY...
Sky/weather.........Mostly cloudy. Slight chance of snow showers
early in the morning. Slight chance of snow
showers late in the afternoon, then chance of
snow showers late in the afternoon. Chance of
snow 40 percent.
Chance of thunder...0 percent.
Max temperature.....37-42.
24 hr trend......Unchanged.
Min humidity........66-72 percent.
24 hr trend......12 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph until 0900, then
southwest around 10 mph until 1500, then
upslope/upvalley 5-9 mph.
Ridge top winds.....Southwest 10 to 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest 10 to 15 mph.
Mixing Height.......1400-3400 ft agl until 1700, then 1000-1400 ft
agl.
Smoke dispersal.....Poor.
.TONIGHT...
Sky/weather.........Mostly cloudy. Slight chance of snow showers
early in the morning. Chance of snow 20
percent.
Chance of thunder...0 percent.
Min temperature.....24-29.
24 hr trend......4 degrees cooler.
Max humidity........85-91 percent.
24 hr trend......Unchanged.
Humidity recovery...Excellent.
20-foot winds.......Downslope/downvalley 4-7 mph.
Ridge top winds.....Southwest around 10 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest around 10 mph.
Mixing Height.......400-1000 ft agl.
Smoke dispersal.....Poor.
.WEDNESDAY...
Sky/weather.........Mostly cloudy. Slight chance of snow showers in
the morning, then chance of snow showers and
rain showers late in the morning. Slight chance
of snow showers late in the afternoon. Chance
of precipitation 50 percent.
Chance of thunder...0 percent.
Max temperature.....38-43.
24 hr trend......Unchanged.
Min humidity........66-72 percent.
24 hr trend......3 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph.
Ridge top winds.....Southwest around 10 mph.
Chc of wetting rain.Less than 5 percent.
Transport winds.....Southwest around 10 mph.
Mixing Height.......1200-3200 ft agl until 1700, then 600-1200 ft
agl.
Smoke dispersal.....Poor.
.Forecast days 3 through 7......
.WEDNESDAY NIGHT...Partly cloudy. Slight chance of snow showers
in the evening. Lows in the mid 20s. Winds generally less than
10 mph.
.THURSDAY...Mostly clear. Lows in the lower 20s. Highs in the
lower 40s. Winds generally less than 10 mph.
.FRIDAY...Mostly clear. Lows in the lower 20s. Highs around 40.
Winds generally less than 10 mph.
.SATURDAY...Partly cloudy with slight chance of snow showers.
Lows in the lower 20s. Highs in the mid 30s. Southwest winds
around 10 mph.
.SUNDAY...Partly cloudy. Slight chance of snow showers. Lows in
the lower 20s. Highs in the mid 30s.
.MONDAY...Mostly cloudy with chance of snow showers. Highs in the
mid 30s.
$$
WYZ415-182300-
North Zone Bridger Teton NF and Grand Teton NP-
Including the cities of Jackson and Moran
501 AM MST Tue Nov 18 2025
.TODAY...
Sky/weather.........Mostly cloudy. Slight chance of snow showers
early in the morning. Slight chance of rain
showers and snow showers late in the afternoon.
Chance of precipitation 20 percent.
Chance of thunder...0 percent.
Max temperature.....36-41.
24 hr trend......Unchanged.
Min humidity........70-76 percent.
24 hr trend......14 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph. 10 mph after 1200
until 1500.
Ridge top winds.....South 5 to 10 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest 5 to 10 mph.
Mixing Height.......1200-3200 ft agl until 1700, then 600-1200 ft
agl.
Smoke dispersal.....Poor.
.TONIGHT...
Sky/weather.........Mostly cloudy then becoming partly cloudy then
becoming mostly cloudy. Slight chance of snow
showers early in the morning. Chance of snow
showers early in the morning. Chance of snow 50
percent.
Chance of thunder...0 percent.
Min temperature.....22-27.
24 hr trend......4 degrees cooler.
Max humidity........87-93 percent.
24 hr trend......5 percent drier.
Humidity recovery...Excellent.
20-foot winds.......Downslope/downvalley 4-7 mph.
Ridge top winds.....South 5 to 10 mph.
Chc of wetting rain.Zero percent.
Transport winds.....South around 10 mph.
Mixing Height.......400-1000 ft agl.
Smoke dispersal.....Poor.
.WEDNESDAY...
Sky/weather.........Mostly cloudy. Chance of snow showers. Chance
of rain showers in the late morning and
afternoon, then slight chance of rain showers
and snow showers late in the afternoon. Chance
of precipitation 50 percent.
Chance of thunder...0 percent.
Max temperature.....35-40.
24 hr trend......1 degree warmer.
Min humidity........76-82 percent.
24 hr trend......1 percent wetter.
20-foot winds.......Upslope/upvalley 5-9 mph.
Ridge top winds.....South 5 to 10 mph.
Chc of wetting rain.Zero percent until 1200, then 10 percent.
Transport winds.....South around 10 mph.
Mixing Height.......1000-3000 ft agl until 1700, then 400-1000 ft
agl.
Smoke dispersal.....Poor.
.Forecast days 3 through 7......
.WEDNESDAY NIGHT...Partly cloudy. Slight chance of showers and
snow showers in the evening. Lows in the lower 20s. Winds
generally less than 10 mph.
.THURSDAY...Mostly clear. Lows in the lower 20s. Highs in the
lower 40s. Winds generally less than 10 mph.
.FRIDAY...Mostly clear. Lows in the lower 20s. Highs around 40.
Winds generally less than 10 mph.
.SATURDAY...Partly cloudy with slight chance of snow showers.
Lows in the lower 20s. Highs in the upper 30s. Winds generally
less than 10 mph.
.SUNDAY...Partly cloudy with slight chance of snow showers. Lows
in the lower 20s. Highs in the upper 30s.
.MONDAY...Partly cloudy. Chance of snow showers in the morning,
then chance of snow showers and showers in the afternoon. Highs
in the mid 30s.
$$
WYZ416-182300-
West Wind River Mountains/East Zone Bridger Teton NF-
501 AM MST Tue Nov 18 2025
.TODAY...
Sky/weather.........Mostly cloudy.
Chance of thunder...0 percent.
Max temperature.....32-37.
24 hr trend......1 degree cooler.
Min humidity........69-75 percent.
24 hr trend......11 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph until 1200, then
southwest around 10 mph until 1500, then
upslope/upvalley 5-9 mph.
Ridge top winds.....West around 10 mph until 0700, then southwest.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest 10 to 15 mph.
Mixing Height.......400-2400 ft agl.
Smoke dispersal.....Poor.
.TONIGHT...
Sky/weather.........Mostly cloudy then becoming partly cloudy.
Slight chance of snow showers early in the
morning. Chance of snow 20 percent.
Chance of thunder...0 percent.
Min temperature.....21-26.
24 hr trend......2 degrees cooler.
Max humidity........85-91 percent.
24 hr trend......5 percent drier.
Humidity recovery...Excellent.
20-foot winds.......Downslope/downvalley 4-7 mph. Gusts up to 10
mph until 2100, then 10 mph after 2400 until
0300.
Ridge top winds.....Southwest around 10 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest around 10 mph.
Mixing Height.......400-1000 ft agl.
Smoke dispersal.....Poor.
.WEDNESDAY...
Sky/weather.........Mostly cloudy. Slight chance of snow showers in
the morning, then chance of snow showers late
in the morning. Chance of snow 40 percent.
Chance of thunder...0 percent.
Max temperature.....32-37.
24 hr trend......1 degree warmer.
Min humidity........71-77 percent.
24 hr trend......1 percent wetter.
20-foot winds.......Upslope/upvalley 5-9 mph until 1200, then
southwest around 10 mph and gusty until 1500,
then upslope/upvalley 5-9 mph.
Ridge top winds.....Southwest 10 to 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest 10 to 15 mph.
Mixing Height.......400-2400 ft agl.
Smoke dispersal.....Poor.
.Forecast days 3 through 7......
.WEDNESDAY NIGHT...Partly cloudy. Lows around 20. Winds generally
less than 10 mph.
.THURSDAY...Mostly clear. Lows around 20. Highs in the upper 30s.
Winds generally less than 10 mph.
.FRIDAY THROUGH SATURDAY...Mostly clear. Lows around 19. Highs
35 to 40. Northwest winds around 10 mph.
.SUNDAY THROUGH MONDAY...Partly cloudy with slight chance of snow
showers. Lows around 20. Highs 33 to 38.
$$
WYZ288-182300-
East Wind River Mountains/South Shoshone NF-
Including the cities of Dubois and South Pass
501 AM MST Tue Nov 18 2025
.TODAY...
Sky/weather.........Mostly cloudy.
Chance of thunder...0 percent.
Max temperature.....38-43.
24 hr trend......Unchanged.
Min humidity........64-70 percent.
24 hr trend......16 percent drier.
20-foot winds.......Southwest winds around 10 mph and gusty.
Ridge top winds.....Southwest around 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West around 15 mph.
Mixing Height.......800-2800 ft agl until 1700, then 400-800 ft
agl.
Smoke dispersal.....Poor.
.TONIGHT...
Sky/weather.........Partly cloudy. Slight chance of snow showers
early in the morning. Chance of snow 20
percent.
Chance of thunder...0 percent.
Min temperature.....23-28.
24 hr trend......3 degrees cooler.
Max humidity........78-84 percent.
24 hr trend......16 percent drier.
Humidity recovery...Excellent.
20-foot winds.......West winds around 10 mph and gusty.
Ridge top winds.....West around 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West around 15 mph.
Mixing Height.......400-800 ft agl.
Smoke dispersal.....Poor.
.WEDNESDAY...
Sky/weather.........Partly cloudy. Slight chance of snow showers in
the morning. Chance of snow showers late in the
morning, then slight chance of snow showers
late in the afternoon. Chance of snow 50
percent.
Chance of thunder...0 percent.
Max temperature.....37-42.
24 hr trend......1 degree warmer.
Min humidity........65-71 percent.
24 hr trend......1 percent drier.
20-foot winds.......West winds around 10 mph and gusty.
Ridge top winds.....West 10 to 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West 10 to 15 mph.
Mixing Height.......1000-3000 ft agl until 1700, then 400-800 ft
agl.
Smoke dispersal.....Poor.
.Forecast days 3 through 7......
.WEDNESDAY NIGHT...Partly cloudy. Slight chance of snow showers
in the evening. Lows in the mid 20s. Winds generally less than
10 mph.
.THURSDAY...Mostly clear. Lows in the mid 20s. Highs in the upper
30s. Winds generally less than 10 mph.
.FRIDAY THROUGH SATURDAY...Mostly clear. Lows 22 to 27. Highs
around 40. West winds 10 to 15 mph.
.SUNDAY THROUGH MONDAY...Partly cloudy with slight chance of snow
showers. Lows in the mid 20s. Highs 37 to 42.
$$
WYZ414-182300-
Salt and Wyoming Ranges/West Zone Bridger Teton NF-
Including the city of Afton
501 AM MST Tue Nov 18 2025
.TODAY...
Sky/weather.........Mostly cloudy.
Chance of thunder...0 percent.
Max temperature.....34-39.
24 hr trend......2 degrees warmer.
Min humidity........76-82 percent.
24 hr trend......11 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph.
Ridge top winds.....South 5 to 10 mph.
Chc of wetting rain.Zero percent.
Transport winds.....South 5 to 10 mph.
Mixing Height.......600-2600 ft agl.
Smoke dispersal.....Poor.
.TONIGHT...
Sky/weather.........Mostly cloudy then becoming partly cloudy then
becoming mostly cloudy. Slight chance of snow
showers after midnight. Slight chance of rain
showers early in the morning, then chance of
snow showers and rain showers early in the
morning. Chance of precipitation 50 percent.
Chance of thunder...0 percent.
Min temperature.....24-29.
24 hr trend......Unchanged.
Max humidity........89-95 percent.
24 hr trend......3 percent drier.
Humidity recovery...Excellent.
20-foot winds.......Downslope/downvalley 4-7 mph.
Ridge top winds.....South 5 to 10 mph.
Chc of wetting rain.Zero percent.
Transport winds.....South 5 to 10 mph.
Mixing Height.......200-800 ft agl.
Smoke dispersal.....Poor.
.WEDNESDAY...
Sky/weather.........Mostly cloudy. Chance of snow showers. Chance
of rain showers early in the morning, then
slight chance of snow showers late in the
afternoon. Chance of precipitation 50 percent.
Chance of thunder...0 percent.
Max temperature.....35-40.
24 hr trend......1 degree warmer.
Min humidity........77-83 percent.
24 hr trend......6 percent wetter.
20-foot winds.......Upslope/upvalley 5-9 mph. 10 mph after 0900.
Ridge top winds.....South 5 to 10 mph.
Chc of wetting rain.5 percent.
Transport winds.....South 5 to 10 mph.
Mixing Height.......400-2400 ft agl.
Smoke dispersal.....Poor.
.Forecast days 3 through 7......
.WEDNESDAY NIGHT...Partly cloudy. Slight chance of snow showers
in the evening. Lows in the lower 20s. Winds generally less than
10 mph.
.THURSDAY...Mostly clear. Lows in the lower 20s. Highs in the
lower 40s. Winds generally less than 10 mph.
.FRIDAY...Partly cloudy. Slight chance of snow showers. Lows in
the lower 20s. Highs in the upper 30s. Winds generally less than
10 mph.
.SATURDAY...Mostly clear. Slight chance of snow showers. Lows in
the lower 20s. Highs in the upper 30s. Winds generally less than
10 mph.
.SUNDAY...Partly cloudy with slight chance of snow showers. Lows
in the lower 20s. Highs in the upper 30s.
.MONDAY...Partly cloudy. Slight chance of snow showers in the
morning, then chance of snow showers and showers in the
afternoon. Highs in the upper 30s.
$$
WYZ278-182300-
Upper Green River Basin/Rock Springs BLM-
Including the cities of Big Piney, Farson, and Pinedale
501 AM MST Tue Nov 18 2025
.TODAY...
Sky/weather.........Mostly cloudy then becoming partly cloudy.
Chance of thunder...0 percent.
Max temperature.....36-41.
24 hr trend......1 degree cooler.
Min humidity........71-77 percent.
24 hr trend......4 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph.
Ridge top winds.....Northwest 5 to 10 mph until 0800, then
northeast until 1000, then east until 1100,
then south.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest 5 to 10 mph until 1700, then south.
Mixing Height.......400-2400 ft agl until 1300, then 800-2800 ft
agl.
Smoke dispersal.....Poor.
.TONIGHT...
Sky/weather.........Partly cloudy then becoming mostly cloudy then
becoming partly cloudy. Slight chance of snow
showers early in the morning. Chance of snow 20
percent.
Chance of thunder...0 percent.
Min temperature.....23-28.
24 hr trend......2 degrees cooler.
Max humidity........87-93 percent.
24 hr trend......5 percent wetter.
Humidity recovery...Excellent.
20-foot winds.......Downslope/downvalley 4-7 mph.
Ridge top winds.....Southeast around 5 mph until 1900, then
northeast until 0100, then north.
Chc of wetting rain.Zero percent.
Transport winds.....East 5 to 10 mph until 2200. North after 0200.
Mixing Height.......400-800 ft agl.
Smoke dispersal.....Poor.
.WEDNESDAY...
Sky/weather.........Mostly cloudy then becoming partly cloudy.
Slight chance of snow showers. Chance of snow
20 percent.
Chance of thunder...0 percent.
Max temperature.....37-42.
24 hr trend......2 degrees warmer.
Min humidity........68-74 percent.
24 hr trend......4 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph.
Ridge top winds.....Northwest around 5 mph until 0900, then south
until 1700, then east.
Chc of wetting rain.Zero percent.
Transport winds.....North around 5 mph until 0800, then east until
1000, then south until 1700, then east.
Mixing Height.......400-2200 ft agl.
Smoke dispersal.....Poor.
.Forecast days 3 through 7......
.WEDNESDAY NIGHT...Partly cloudy. Lows in the lower 20s. Winds
generally less than 10 mph.
.THURSDAY...Partly cloudy. Lows in the lower 20s. Highs in the
mid 40s. Winds generally less than 10 mph.
.FRIDAY THROUGH SATURDAY...Mostly clear. Lows around 19. Highs
42 to 47. Winds generally less than 10 mph.
.SUNDAY THROUGH MONDAY...Partly cloudy. Lows around 20. Highs in
the mid 40s.
$$
WYZ277-182300-
Lincoln and Uinta Counties/Lower Elevations-
Including the cities of Evanston, Fort Bridger, and Kemmerer
501 AM MST Tue Nov 18 2025
.TODAY...
Sky/weather.........Mostly cloudy then becoming partly cloudy.
Chance of thunder...0 percent.
Max temperature.....36-41.
24 hr trend......Unchanged.
Min humidity........70-76 percent.
24 hr trend......11 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph.
Ridge top winds.....North around 5 mph until 0900. Southeast after
1000.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest around 5 mph until 0800, then east
until 1000, then south.
Mixing Height.......400-2200 ft agl.
Smoke dispersal.....Poor.
.TONIGHT...
Sky/weather.........Partly cloudy then becoming mostly cloudy.
Slight chance of rain showers after midnight.
Slight chance of snow showers after midnight.
Chance of rain showers early in the morning.
Chance of precipitation 50 percent.
Chance of thunder...0 percent.
Min temperature.....24-29.
24 hr trend......Unchanged.
Max humidity........90-96 percent.
24 hr trend......4 percent wetter.
Humidity recovery...Excellent.
20-foot winds.......Downslope/downvalley 4-7 mph.
Ridge top winds.....Northeast around 10 mph until 2400, then west
until 0300, then southwest.
Chc of wetting rain.Zero percent.
Transport winds.....East around 10 mph until 0100, then southwest
until 0400, then around 5 mph.
Mixing Height.......400-600 ft agl.
Smoke dispersal.....Poor.
.WEDNESDAY...
Sky/weather.........Mostly cloudy then becoming partly cloudy.
Slight chance of snow showers in the morning.
Chance of rain showers early in the morning,
then slight chance of rain showers late in the
morning. Chance of precipitation 50 percent.
Chance of thunder...0 percent.
Max temperature.....38-43.
24 hr trend......3 degrees warmer.
Min humidity........68-74 percent.
24 hr trend......3 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph.
Ridge top winds.....Southeast 5 to 10 mph until 1300, then
southwest until 1600, then northeast.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest around 5 mph until 0700, then
southeast.
Mixing Height.......200-1800 ft agl.
Smoke dispersal.....Poor.
.Forecast days 3 through 7......
.WEDNESDAY NIGHT...Partly cloudy. Lows in the mid 20s. Winds
generally less than 10 mph.
.THURSDAY...Partly cloudy. Lows in the mid 20s. Highs in the
lower 40s. Winds generally less than 10 mph.
.FRIDAY...Partly cloudy. Lows in the lower 20s. Highs in the
lower 40s. Winds generally less than 10 mph.
.SATURDAY...Mostly clear. Lows in the lower 20s. Highs in the
lower 40s. Winds generally less than 10 mph.
.SUNDAY...Partly cloudy. Lows in the lower 20s. Highs in the
lower 40s.
.MONDAY...Partly cloudy. Slight chance of snow showers in the
afternoon. Highs in the lower 40s.
$$
WYZ279-182300-
Sweetwater County/Rock Springs BLM/Flaming Gorge NRA-
Including the cities of Green River, Rock Springs, and Wamsutter
501 AM MST Tue Nov 18 2025
.TODAY...
Sky/weather.........Mostly cloudy.
Chance of thunder...0 percent.
Max temperature.....40-45.
24 hr trend......2 degrees warmer.
Min humidity........61-67 percent.
24 hr trend......19 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph until 0900, then south
around 10 mph. Gusts up to 15 mph.
Ridge top winds.....South 10 to 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....South 10 to 15 mph.
Mixing Height.......400-2200 ft agl until 1200, then 2200-3600 ft
agl until 1700, then 600-800 ft agl.
Smoke dispersal.....Poor.
.TONIGHT...
Sky/weather.........Mostly cloudy then becoming partly cloudy.
Chance of thunder...0 percent.
Min temperature.....26-31.
24 hr trend......1 degree cooler.
Max humidity........87-93 percent.
24 hr trend......8 percent wetter.
Humidity recovery...Excellent.
20-foot winds.......South winds around 10 mph with gusts to around
15 mph.
Ridge top winds.....South around 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....South around 15 mph.
Mixing Height.......400-600 ft agl.
Smoke dispersal.....Poor.
.WEDNESDAY...
Sky/weather.........Mostly cloudy then becoming partly cloudy then
becoming mostly cloudy.
Chance of thunder...0 percent.
Max temperature.....42-47.
24 hr trend......3 degrees warmer.
Min humidity........60-66 percent.
24 hr trend......Unchanged.
20-foot winds.......Southwest winds around 10 mph and gusty.
Ridge top winds.....Southwest 10 to 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....South 10 to 15 mph.
Mixing Height.......800-2800 ft agl until 1700, then 400-600 ft
agl.
Smoke dispersal.....Poor.
.Forecast days 3 through 7......
.WEDNESDAY NIGHT...Partly cloudy. Lows in the mid 20s. Winds
generally less than 10 mph.
.THURSDAY...Partly cloudy. Lows in the upper 20s. Highs in the
mid 40s. Winds generally less than 10 mph.
.FRIDAY...Partly cloudy with slight chance of showers and snow
showers. Lows in the mid 20s. Highs in the lower 40s. West winds
around 10 mph.
.SATURDAY...Mostly clear. Lows in the mid 20s. Highs in the lower
40s. Southwest winds around 10 mph.
.SUNDAY THROUGH MONDAY...Partly cloudy. Lows in the mid 20s.
Highs in the mid 40s.
$$
WYZ289-182300-
Granite/Green/Ferris/Rattlesnake Mountains-
Including the city of Jeffrey City
501 AM MST Tue Nov 18 2025
.TODAY...
Sky/weather.........Mostly cloudy then becoming partly cloudy.
Chance of thunder...0 percent.
Max temperature.....41-46.
24 hr trend......3 degrees warmer.
Min humidity........60-66 percent.
24 hr trend......20 percent drier.
20-foot winds.......Southwest winds around 15 mph with gusts to
around 25 mph.
Ridge top winds.....Southwest 15 to 20 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest 15 to 20 mph.
Mixing Height.......600-2600 ft agl until 1300, then 1600-3200 ft
agl until 1700, then 600-800 ft agl.
Smoke dispersal.....Poor.
.TONIGHT...
Sky/weather.........Partly cloudy.
Chance of thunder...0 percent.
Min temperature.....29-34.
24 hr trend......2 degrees cooler.
Max humidity........80-86 percent.
24 hr trend......3 percent drier.
Humidity recovery...Excellent.
20-foot winds.......Southwest winds 10 to 15 mph and gusty.
Ridge top winds.....Southwest around 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest around 15 mph.
Mixing Height.......400-600 ft agl.
Smoke dispersal.....Poor.
.WEDNESDAY...
Sky/weather.........Partly cloudy.
Chance of thunder...0 percent.
Max temperature.....44-49.
24 hr trend......2 degrees warmer.
Min humidity........54-60 percent.
24 hr trend......5 percent drier.
20-foot winds.......Southwest winds 10 to 15 mph with gusts to
around 25 mph.
Ridge top winds.....Southwest around 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest 15 to 20 mph.
Mixing Height.......200-2200 ft agl until 1300, then 1200-3200 ft
agl until 1700, then 400-600 ft agl.
Smoke dispersal.....Poor.
.Forecast days 3 through 7......
.WEDNESDAY NIGHT...Partly cloudy. Lows in the upper 20s. Winds
generally less than 10 mph.
.THURSDAY...Partly cloudy. Lows in the upper 20s. Highs in the
mid 40s. Winds generally less than 10 mph.
.FRIDAY...Partly cloudy with slight chance of showers and snow
showers. Lows in the mid 20s. Highs in the mid 40s. Southwest
winds around 10 mph.
.SATURDAY...Mostly clear. Lows in the upper 20s. Highs in the mid
40s. Southwest winds around 15 mph.
.SUNDAY...Mostly clear. Lows in the upper 20s. Highs in the mid
40s.
.MONDAY...Partly cloudy. Highs in the mid 40s.
$$
WYZ300-182300-
Casper Mountain-
501 AM MST Tue Nov 18 2025
.TODAY...
Sky/weather.........Mostly cloudy.
Chance of thunder...0 percent.
Max temperature.....42-47.
24 hr trend......4 degrees warmer.
Min humidity........53-59 percent.
24 hr trend......24 percent drier.
20-foot winds.......Southwest winds around 15 mph with higher
gusts.
Ridge top winds.....Southwest 15 to 20 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest 15 to 20 mph.
Mixing Height.......400-2400 ft agl until 1300, then 1400-3200 ft
agl until 1700, then 400-600 ft agl.
Smoke dispersal.....Poor.
.TONIGHT...
Sky/weather.........Mostly cloudy then becoming partly cloudy.
Chance of thunder...0 percent.
Min temperature.....30-35.
24 hr trend......3 degrees cooler.
Max humidity........81-87 percent.
24 hr trend......6 percent drier.
Humidity recovery...Excellent.
20-foot winds.......Southwest winds around 15 mph with gusts to
around 25 mph.
Ridge top winds.....Southwest around 20 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest 20 to 25 mph.
Mixing Height.......200-600 ft agl.
Smoke dispersal.....Poor.
.WEDNESDAY...
Sky/weather.........Partly cloudy then becoming mostly sunny then
becoming partly cloudy.
Chance of thunder...0 percent.
Max temperature.....45-50.
24 hr trend......2 degrees warmer.
Min humidity........54-60 percent.
24 hr trend......1 percent wetter.
20-foot winds.......Southwest winds 10 to 15 mph with gusts to
around 25 mph.
Ridge top winds.....Southwest 15 to 20 mph until 1700, then around
10 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West 15 to 20 mph until 1700, then around 10
mph.
Mixing Height.......800-2800 ft agl until 1300, then 2200-3800 ft
agl until 1600, then 200-1600 ft agl.
Smoke dispersal.....Poor.
.Forecast days 3 through 7......
.WEDNESDAY NIGHT...Partly cloudy. Lows in the upper 20s. Winds
generally less than 10 mph.
.THURSDAY...Partly cloudy. Lows in the upper 20s. Highs in the
mid 40s. Winds generally less than 10 mph.
.FRIDAY...Partly cloudy with slight chance of showers and snow
showers. Lows in the upper 20s. Highs in the lower 40s. Southwest
winds around 10 mph.
.SATURDAY...Mostly clear. Lows in the upper 20s. Highs in the
lower 40s. Southwest winds around 15 mph.
.SUNDAY...Mostly clear. Lows in the upper 20s. Highs in the mid
40s.
.MONDAY...Partly cloudy. Highs in the lower 40s.
$$