Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS Riverton, WY
Issued by NWS Riverton, WY
122
FNUS55 KRIW 160930
FWFRIW
Fire Weather Planning Forecast for Western and Central Wyoming
National Weather Service Riverton WY
330 AM MDT Fri May 16 2025
.DISCUSSION...
...Yellowstone NP and Teton dispatch areas (includes fire weather
zones 140...414...415...and 416)...
Today will be somewhat drier and warmer than the previous couple
of days. Isolated to scattered showers and thunderstorms will be
around in the afternoon and evening. Relative humidity will remain
above critical levels. Wind should remain light to moderate. Mixing
and smoke dispersal will be generally fair to good.
...Cody dispatch area (includes fire weather zones 275...276...
282...283...285...286...287...288...and 289)...
Today will be somewhat drier and warmer than the previous couple
of days. Isolated showers and thunderstorms will be around in the
afternoon and evening, but most locations should be rain free today,
especially in the lower elevations. Relative humidity will remain
above critical levels. Wind should remain light to moderate. Mixing
and smoke dispersal will be generally fair to good.
...Casper dispatch area (includes fire weather zones 277...278...
279...280...281...285...289...and 300)...
Today will be a mainly dry and warmer day, with only slight chances
of a shower or thunderstorm in and near the northern Mountains. A
gusty wind will continue across much of the area, with the strongest
wind in Zones 281, 277, 278 and 279. Relative humidity will remain
above critical levels. Mixing and smoke dispersal will be generally
good to excellent.
...Thunderstorms imply strong gusty and erratic winds...
WYZ280-171130-
Natrona County/Casper BLM-
Including the cities of Casper and Midwest
330 AM MDT Fri May 16 2025
.TODAY...
Sky/weather.........Partly cloudy.
Chance of thunder...0 percent.
Max temperature.....58-63.
24 hr trend......5 degrees warmer.
Min humidity........33-39 percent.
24 hr trend......5 percent drier.
20-foot winds.......Northwest winds 15 to 20 mph with gusts to
around 35 mph.
Ridge top winds.....Northwest 20 to 25 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Northwest around 25 mph.
Mixing Height.......2400-4400 ft agl until 1200, then 6800-8800 ft
agl.
Smoke dispersal.....Good until 1200, then very good to excellent.
.TONIGHT...
Sky/weather.........Partly cloudy.
Chance of thunder...0 percent.
Min temperature.....37-42.
24 hr trend......Unchanged.
Max humidity........78-84 percent.
24 hr trend......3 percent wetter.
Humidity recovery...Excellent.
20-foot winds.......North winds around 10 mph until 2400, then east
until 0300, then downslope/downvalley 4-7 mph.
Gusts up to 20 mph.
Ridge top winds.....North around 15 mph until 2400, then east.
Chc of wetting rain.Zero percent.
Transport winds.....North around 15 mph until 2400, then east.
Mixing Height.......3200-5200 ft agl until 2400, then 400-600 ft
agl.
Smoke dispersal.....Fair to good until 2400, then poor.
.SATURDAY...
Sky/weather.........Mostly sunny then becoming partly cloudy.
Chance of showers and slight chance of
thunderstorms in the afternoon. Chance of
precipitation 50 percent.
Chance of thunder...20 percent.
Max temperature.....65-70.
24 hr trend......5 degrees warmer.
Min humidity........26-32 percent.
24 hr trend......3 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph until 0900, then
southwest 10 to 15 mph. Gusts up to 20 mph.
Ridge top winds.....Southwest around 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest 15 to 20 mph.
Mixing Height.......2400-4400 ft agl until 1200, then 6200-8200 ft
agl.
Smoke dispersal.....Poor to fair until 1200, then good to very
good.
.Forecast days 3 through 7......
.SATURDAY NIGHT...Mostly cloudy. Chance of showers and slight
chance of thunderstorms in the evening. Lows in the lower 40s.
Southeast winds around 10 mph.
.SUNDAY...Showers and chance of thunderstorms. Lows in the upper
30s. Highs in the mid 60s. Southwest winds around 15 mph.
.MONDAY...Cooler. Mostly cloudy with showers. Lows in the mid
30s. Highs in the upper 40s. Northwest winds around 15 mph.
.TUESDAY...Warmer. Partly cloudy with chance of showers. Lows in
the upper 30s. Highs in the upper 50s. Northwest winds around
10 mph.
.WEDNESDAY...Mostly clear. Slight chance of showers and
thunderstorms. Lows in the lower 40s. Highs in the upper 60s.
.THURSDAY...Mostly sunny. Highs in the lower 70s.
$$
WYZ283-171130-
Upper Wind River Basin/Wind River Basin-
Including the cities of Crowheart, Lander, Riverton, and Shoshoni
330 AM MDT Fri May 16 2025
.TODAY...
Sky/weather.........Partly cloudy.
Chance of thunder...0 percent.
Max temperature.....56-61.
24 hr trend......4 degrees warmer.
Min humidity........38-44 percent.
24 hr trend......2 percent wetter.
20-foot winds.......Upslope/upvalley 5-9 mph. Gusts up to 15 mph.
Ridge top winds.....Northwest around 10 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West around 10 mph.
Mixing Height.......2000-4000 ft agl until 1200, then 5800-7800 ft
agl.
Smoke dispersal.....Fair to good.
.TONIGHT...
Sky/weather.........Partly cloudy.
Chance of thunder...0 percent.
Min temperature.....36-41.
24 hr trend......3 degrees warmer.
Max humidity........74-80 percent.
24 hr trend......6 percent drier.
Humidity recovery...Excellent.
20-foot winds.......Downslope/downvalley 4-7 mph. Gusts up to 15
mph.
Ridge top winds.....Northwest around 10 mph until 2400, then west.
Chc of wetting rain.Zero percent.
Transport winds.....West around 10 mph.
Mixing Height.......2800-4800 ft agl until 2400, then 400-800 ft
agl.
Smoke dispersal.....Poor.
.SATURDAY...
Sky/weather.........Partly cloudy. Chance of showers and slight
chance of thunderstorms in the afternoon.
Chance of precipitation 50 percent.
Chance of thunder...20 percent.
Max temperature.....61-66.
24 hr trend......4 degrees warmer.
Min humidity........31-37 percent.
24 hr trend......3 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.....Southwest 10 to 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest 10 to 15 mph.
Mixing Height.......1800-3800 ft agl until 1200, then 5800-7800 ft
agl.
Smoke dispersal.....Poor until 1200, then good.
.Forecast days 3 through 7......
.SATURDAY NIGHT...Mostly cloudy. Showers likely and slight chance
of thunderstorms in the evening, then chance of showers after
midnight. Lows in the mid 40s. Winds generally less than 10 mph.
.SUNDAY...Showers and slight chance of thunderstorms. Lows in the
upper 30s. Highs in the lower 60s. West winds around 10 mph.
.MONDAY...Cooler. Mostly cloudy with showers likely. Lows in the
upper 30s. Highs in the lower 50s. North winds around 10 mph.
.TUESDAY...Warmer. Mostly clear with slight chance of showers.
Lows in the upper 30s. Highs in the lower 60s. West winds around
10 mph.
.WEDNESDAY...Mostly clear. Slight chance of showers and
thunderstorms. Lows in the lower 40s. Highs in the upper 60s.
.THURSDAY...Mostly sunny. Highs in the lower 70s.
$$
WYZ285-171130-
South Bighorn Mountains-
330 AM MDT Fri May 16 2025
.TODAY...
Sky/weather.........Partly cloudy.
Chance of thunder...0 percent.
Max temperature.....52-57.
24 hr trend......6 degrees warmer.
Min humidity........44-50 percent.
24 hr trend......11 percent drier.
20-foot winds.......Northwest winds 15 to 20 mph with gusts to
around 40 mph.
Ridge top winds.....Northwest 20 to 25 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Northwest 20 to 25 mph.
Mixing Height.......1200-3200 ft agl until 1200, then 4000-6000 ft
agl.
Smoke dispersal.....Fair to good.
.TONIGHT...
Sky/weather.........Partly cloudy.
Chance of thunder...0 percent.
Min temperature.....35-40.
24 hr trend......3 degrees warmer.
Max humidity........78-84 percent.
24 hr trend......11 percent drier.
Humidity recovery...Excellent.
20-foot winds.......North winds around 10 mph until 2100, then
downslope/downvalley 4-7 mph until 0300, then
south around 10 mph. Gusts up to 15 mph.
Ridge top winds.....North around 10 mph until 2400, then south.
Chc of wetting rain.Zero percent.
Transport winds.....Northwest around 10 mph until 2400, then south.
Mixing Height.......1800-3800 ft agl until 2400, then 200-600 ft
agl.
Smoke dispersal.....Poor.
.SATURDAY...
Sky/weather.........Mostly sunny then becoming partly cloudy.
Chance of showers and slight chance of
thunderstorms in the afternoon. Chance of
precipitation 40 percent.
Chance of thunder...20 percent.
Max temperature.....58-63.
24 hr trend......6 degrees warmer.
Min humidity........30-36 percent.
24 hr trend......10 percent drier.
20-foot winds.......Southwest winds around 10 mph with higher
gusts.
Ridge top winds.....Southwest around 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest around 15 mph.
Mixing Height.......1800-3800 ft agl until 1200, then 5400-7400 ft
agl.
Smoke dispersal.....Poor to fair until 1200, then good.
.Forecast days 3 through 7......
.SATURDAY NIGHT...Mostly cloudy. Chance of showers and slight
chance of thunderstorms in the evening, then slight chance of
showers after midnight. Lows in the lower 40s. Southeast winds
around 10 mph.
.SUNDAY...Showers, snow showers and chance of thunderstorms. Lows
in the mid 30s. Highs in the upper 50s. West winds around 15 mph.
.MONDAY...Colder. Mostly cloudy with showers and snow showers.
Lows in the mid 30s. Highs in the lower 40s. Northwest winds
around 15 mph.
.TUESDAY...Warmer. Partly cloudy with chance of showers and snow
showers. Lows in the upper 30s. Highs in the lower 50s. Northwest
winds around 10 mph.
.WEDNESDAY...Mostly clear. Chance of showers and slight chance of
thunderstorms. Lows in the lower 40s. Highs in the upper 50s.
.THURSDAY...Mostly sunny. Slight chance of showers and
thunderstorms in the afternoon. Highs in the mid 60s.
$$
WYZ281-171130-
Johnson County/Casper BLM-
Including the cities of Buffalo and Kaycee
330 AM MDT Fri May 16 2025
.TODAY...
Sky/weather.........Partly cloudy.
Chance of thunder...0 percent.
Max temperature.....52-57.
24 hr trend......4 degrees warmer.
Min humidity........43-49 percent.
24 hr trend......5 percent drier.
20-foot winds.......Breezy. Northwest winds 20 to 25 mph with gusts
to around 40 mph until 1500, then north around
15 mph with gusts to around 40 mph.
Ridge top winds.....Northwest around 25 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Northwest around 25 mph.
Mixing Height.......2200-4200 ft agl until 1200, then 5600-7000 ft
agl.
Smoke dispersal.....Fair to good until 1200, then very good.
.TONIGHT...
Sky/weather.........Partly cloudy.
Chance of thunder...0 percent.
Min temperature.....38-43.
24 hr trend......1 degree cooler.
Max humidity........81-87 percent.
24 hr trend......8 percent wetter.
Humidity recovery...Excellent.
20-foot winds.......North winds around 10 mph with gusts to around
25 mph until 2100, then downslope/downvalley
4-7 mph.
Ridge top winds.....North around 15 mph until 2400, then south.
Chc of wetting rain.Zero percent.
Transport winds.....North around 15 mph until 2400, then south.
Mixing Height.......2200-4200 ft agl until 2400, then 400-600 ft
agl.
Smoke dispersal.....Poor to fair until 2400, then poor.
.SATURDAY...
Sky/weather.........Mostly sunny then becoming partly cloudy.
Slight chance of showers and thunderstorms in
the afternoon. Chance of precipitation 20
percent.
Chance of thunder...20 percent.
Max temperature.....61-66.
24 hr trend......8 degrees warmer.
Min humidity........35-41 percent.
24 hr trend......12 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.
Chc of wetting rain.Zero percent.
Transport winds.....South 10 to 15 mph.
Mixing Height.......2200-4200 ft agl until 1200, then 7600-9600 ft
agl.
Smoke dispersal.....Poor to fair until 1200, then good to very
good.
.Forecast days 3 through 7......
.SATURDAY NIGHT...Mostly cloudy. Chance of showers and slight
chance of thunderstorms in the evening. Lows in the mid 40s.
Southeast winds around 10 mph.
.SUNDAY...Showers and chance of thunderstorms. Lows in the upper
30s. Highs in the upper 60s. Southeast winds around 15 mph.
.MONDAY...Much cooler. Mostly cloudy with showers. Lows in the
mid 30s. Highs in the mid 40s. North winds around 15 mph.
.TUESDAY...Warmer. Partly cloudy with chance of showers. Lows in
the upper 30s. Highs in the upper 50s. Northwest winds around
10 mph.
.WEDNESDAY...Mostly clear. Chance of showers and slight chance of
thunderstorms. Lows in the lower 40s. Highs in the mid 60s.
.THURSDAY...Partly cloudy. Slight chance of showers and
thunderstorms in the afternoon. Highs in the upper 60s.
$$
WYZ282-171130-
South Bighorn Basin/Worland BLM-
Including the cities of Ten Sleep, Thermopolis, and Worland
330 AM MDT Fri May 16 2025
.TODAY...
Sky/weather.........Partly cloudy. Slight chance of showers and
thunderstorms late in the afternoon. Chance of
precipitation 20 percent.
Chance of thunder...10 percent.
Max temperature.....54-59.
24 hr trend......5 degrees warmer.
Min humidity........42-48 percent.
24 hr trend......7 percent drier.
20-foot winds.......Northwest winds around 10 mph with gusts to
around 25 mph.
Ridge top winds.....Northwest around 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Northwest around 15 mph.
Mixing Height.......2000-4000 ft agl until 1200, then 5600-7000 ft
agl.
Smoke dispersal.....Fair to good.
.TONIGHT...
Sky/weather.........Partly cloudy. Slight chance of showers and
thunderstorms early in the evening. Chance of
precipitation 20 percent.
Chance of thunder...10 percent.
Min temperature.....35-40.
24 hr trend......2 degrees warmer.
Max humidity........80-86 percent.
24 hr trend......1 percent drier.
Humidity recovery...Excellent.
20-foot winds.......Downslope/downvalley 4-7 mph. Gusts up to 15
mph.
Ridge top winds.....North around 10 mph until 2400, then south.
Chc of wetting rain.Zero percent.
Transport winds.....North around 10 mph until 2400, then south.
Mixing Height.......2400-4400 ft agl until 2400, then 400-800 ft
agl.
Smoke dispersal.....Poor.
.SATURDAY...
Sky/weather.........Mostly sunny then becoming partly cloudy.
Slight chance of showers and thunderstorms in
the afternoon. Chance of precipitation 20
percent.
Chance of thunder...20 percent.
Max temperature.....59-64.
24 hr trend......6 degrees warmer.
Min humidity........29-35 percent.
24 hr trend......9 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph.
Ridge top winds.....South around 10 mph.
Chc of wetting rain.Zero percent.
Transport winds.....South around 10 mph.
Mixing Height.......2000-4000 ft agl until 1200, then 6200-8200 ft
agl.
Smoke dispersal.....Poor to fair.
.Forecast days 3 through 7......
.SATURDAY NIGHT...Mostly cloudy. Chance of showers and slight
chance of thunderstorms in the evening, then slight chance of
showers after midnight. Lows in the mid 40s. Winds generally less
than 10 mph.
.SUNDAY...Showers and slight chance of thunderstorms. Lows around
40. Highs in the mid 60s. West winds around 15 mph.
.MONDAY...Cooler. Mostly cloudy with showers likely. Lows in the
upper 30s. Highs in the lower 50s. Northwest winds around 15 mph.
.TUESDAY...Warmer. Partly cloudy with chance of showers. Lows in
the lower 40s. Highs in the lower 60s. Winds generally less than
10 mph.
.WEDNESDAY...Mostly clear. Chance of showers and slight chance of
thunderstorms. Lows in the lower 40s. Highs in the upper 60s.
.THURSDAY...Mostly sunny. Slight chance of showers and
thunderstorms in the afternoon. Highs in the lower 70s.
$$
WYZ275-171130-
North Bighorn Basin/Worland BLM-
Including the cities of Greybull, Lovell, and Powell
330 AM MDT Fri May 16 2025
.TODAY...
Sky/weather.........Partly cloudy. Slight chance of showers and
thunderstorms late in the afternoon. Chance of
precipitation 20 percent.
Chance of thunder...10 percent.
Max temperature.....52-57.
24 hr trend......4 degrees warmer.
Min humidity........45-51 percent.
24 hr trend......6 percent drier.
20-foot winds.......Northwest winds 10 to 15 mph with gusts to
around 25 mph.
Ridge top winds.....Northwest around 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Northwest around 15 mph.
Mixing Height.......1800-3800 ft agl until 1200, then 5600-7400 ft
agl.
Smoke dispersal.....Fair to good.
.TONIGHT...
Sky/weather.........Partly cloudy. Slight chance of thunderstorms
early in the evening. Slight chance of showers
in the evening. Chance of precipitation 20
percent.
Chance of thunder...20 percent.
Min temperature.....36-41.
24 hr trend......3 degrees warmer.
Max humidity........80-86 percent.
24 hr trend......1 percent wetter.
Humidity recovery...Excellent.
20-foot winds.......Northwest winds around 10 mph until 2100, then
downslope/downvalley 4-7 mph. Gusts up to 15
mph.
Ridge top winds.....Northwest around 10 mph until 2400, then south.
Chc of wetting rain.Zero percent.
Transport winds.....Northwest around 10 mph until 2400, then south.
Mixing Height.......2400-4400 ft agl until 2400, then 400-800 ft
agl.
Smoke dispersal.....Poor.
.SATURDAY...
Sky/weather.........Partly cloudy. Chance of showers and slight
chance of thunderstorms in the afternoon.
Chance of precipitation 40 percent.
Chance of thunder...20 percent.
Max temperature.....57-62.
24 hr trend......5 degrees warmer.
Min humidity........33-39 percent.
24 hr trend......8 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph until 1200, then
southeast 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.......1800-3800 ft agl until 1200, then 5800-7600 ft
agl.
Smoke dispersal.....Poor to fair.
.Forecast days 3 through 7......
.SATURDAY NIGHT...Mostly cloudy. Chance of showers and slight
chance of thunderstorms in the evening, then slight chance of
showers after midnight. Lows in the upper 40s. Winds generally
less than 10 mph.
.SUNDAY...Showers and slight chance of thunderstorms. Lows around
40. Highs in the mid 60s. Northwest winds around 15 mph.
.MONDAY...Cooler. Mostly cloudy with showers likely. Lows in the
upper 30s. Highs in the lower 50s. Northwest winds around 15 mph.
.TUESDAY...Warmer. Partly cloudy with chance of showers. Lows in
the lower 40s. Highs in the lower 60s. Northwest winds around
10 mph.
.WEDNESDAY...Partly cloudy. Chance of showers and slight chance
of thunderstorms. Lows in the mid 40s. Highs in the upper 60s.
.THURSDAY...Mostly sunny. Slight chance of showers and
thunderstorms in the afternoon. Highs around 70.
$$
WYZ276-171130-
Cody Foothills-
Including the cities of Clark, Cody, and Meeteetse
330 AM MDT Fri May 16 2025
.TODAY...
Sky/weather.........Partly cloudy. Slight chance of showers early
in the afternoon. Slight chance of
thunderstorms in the afternoon. Chance of
showers late in the afternoon. Chance of
precipitation 50 percent.
Chance of thunder...20 percent.
Max temperature.....52-57.
24 hr trend......1 degree warmer.
Min humidity........50-56 percent.
24 hr trend......14 percent wetter.
20-foot winds.......Upslope/upvalley 5-9 mph until 0900, then
northeast around 10 mph. Gusts up to 15 mph.
Ridge top winds.....North 10 to 15 mph.
Chc of wetting rain.Less than 5 percent.
Transport winds.....Northwest around 10 mph.
Mixing Height.......2000-4000 ft agl until 1200, then 4200-5800 ft
agl.
Smoke dispersal.....Poor to fair.
.TONIGHT...
Sky/weather.........Mostly cloudy then becoming partly cloudy.
Chance of showers and slight chance of
thunderstorms early in the evening, then slight
chance of showers in the late evening and early
morning. Chance of precipitation 50 percent.
Chance of thunder...20 percent.
Min temperature.....36-41.
24 hr trend......3 degrees warmer.
Max humidity........75-81 percent.
24 hr trend......5 percent drier.
Humidity recovery...Excellent.
20-foot winds.......North winds around 10 mph until 2100, then
downslope/downvalley 4-7 mph. Gusts up to 15
mph.
Ridge top winds.....Northwest around 10 mph until 2400, then
southwest.
Chc of wetting rain.Less than 5 percent.
Transport winds.....West around 10 mph.
Mixing Height.......1400-3400 ft agl until 2400, then 600-1000 ft
agl.
Smoke dispersal.....Poor.
.SATURDAY...
Sky/weather.........Partly cloudy. Chance of showers and slight
chance of thunderstorms in the afternoon.
Chance of precipitation 50 percent.
Chance of thunder...20 percent.
Max temperature.....57-62.
24 hr trend......7 degrees warmer.
Min humidity........39-45 percent.
24 hr trend......13 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph until 1200, then
southeast around 10 mph. Gusts up to 15 mph.
Ridge top winds.....South around 10 mph until 1200, then southeast.
Chc of wetting rain.Less than 5 percent.
Transport winds.....South 10 to 15 mph.
Mixing Height.......2000-4000 ft agl until 1200, then 5000-7000 ft
agl.
Smoke dispersal.....Poor until 1200, then good.
.Forecast days 3 through 7......
.SATURDAY NIGHT...Mostly cloudy. Chance of showers and slight
chance of thunderstorms in the evening, then slight chance of
showers after midnight. Lows in the mid 40s. Winds generally less
than 10 mph.
.SUNDAY...Showers with possible snow showers and thunderstorms.
Lows in the upper 30s. Highs in the upper 50s. Northwest winds
around 10 mph.
.MONDAY...Mostly cloudy with showers and snow showers likely.
Lows in the upper 30s. Highs around 50. Northwest winds around
15 mph.
.TUESDAY...Warmer. Partly cloudy with chance of showers. Lows in
the lower 40s. Highs in the lower 60s. West winds around 10 mph.
.WEDNESDAY...Partly cloudy. Chance of showers and slight chance
of thunderstorms. Lows in the lower 40s. Highs in the mid 60s.
.THURSDAY...Partly cloudy. Slight chance of showers and
thunderstorms in the afternoon. Highs in the mid 60s.
$$
WYZ287-171130-
Owl Creek Mountains-
330 AM MDT Fri May 16 2025
.TODAY...
Sky/weather.........Partly cloudy. Slight chance of showers in the
morning. Chance of showers and slight chance of
thunderstorms in the afternoon. Chance of
precipitation 40 percent.
Chance of thunder...20 percent.
Max temperature.....53-58.
24 hr trend......4 degrees warmer.
Min humidity........51-57 percent.
24 hr trend......8 percent wetter.
20-foot winds.......Upslope/upvalley 5-9 mph. Gusts up to 15 mph.
Ridge top winds.....North around 10 mph until 1200, then east.
Chc of wetting rain.Less than 5 percent.
Transport winds.....Northwest around 10 mph until 1200, then
southwest.
Mixing Height.......1600-3600 ft agl until 1200, then 3600-5000 ft
agl.
Smoke dispersal.....Poor to fair.
.TONIGHT...
Sky/weather.........Partly cloudy. Slight chance of thunderstorms
early in the evening. Slight chance of showers
in the evening. Chance of precipitation 20
percent.
Chance of thunder...20 percent.
Min temperature.....35-40.
24 hr trend......3 degrees warmer.
Max humidity........75-81 percent.
24 hr trend......16 percent drier.
Humidity recovery...Excellent.
20-foot winds.......Downslope/downvalley 4-7 mph. Gusts up to 15
mph.
Ridge top winds.....North around 10 mph until 2400, then west.
Chc of wetting rain.Zero percent.
Transport winds.....Northwest around 10 mph until 2400, then
southwest.
Mixing Height.......1200-3200 ft agl until 2400, then 200-600 ft
agl.
Smoke dispersal.....Poor.
.SATURDAY...
Sky/weather.........Partly cloudy. Chance of showers and slight
chance of thunderstorms in the afternoon.
Chance of precipitation 40 percent.
Chance of thunder...20 percent.
Max temperature.....54-59.
24 hr trend......6 degrees warmer.
Min humidity........35-41 percent.
24 hr trend......19 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph until 1200, then
southeast around 10 mph. Gusts up to 15 mph.
Ridge top winds.....Southwest around 10 mph until 1200, then
southeast.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest 10 to 15 mph.
Mixing Height.......1600-3600 ft agl until 1200, then 5200-7200 ft
agl.
Smoke dispersal.....Poor to fair.
.Forecast days 3 through 7......
.SATURDAY NIGHT...Mostly cloudy. Showers likely and slight chance
of thunderstorms in the evening, then chance of showers after
midnight. Lows in the lower 40s. Winds generally less than
10 mph.
.SUNDAY...Showers with possible snow showers and thunderstorms
likely. Lows in the upper 30s. Highs in the upper 50s. West winds
around 15 mph.
.MONDAY...Cooler. Mostly cloudy with showers and snow showers
likely. Lows in the upper 30s. Highs in the upper 40s. North
winds around 15 mph.
.TUESDAY...Warmer. Partly cloudy with chance of showers. Lows
around 40. Highs in the upper 50s. West winds around 10 mph.
.WEDNESDAY...Mostly clear. Chance of showers and slight chance of
thunderstorms. Lows in the lower 40s. Highs in the lower 60s.
.THURSDAY...Mostly sunny. Slight chance of showers and
thunderstorms in the afternoon. Highs in the mid 60s.
$$
WYZ286-171130-
Absaroka Mountains/North Shoshone NF-
Including the city of Pahaska
330 AM MDT Fri May 16 2025
.TODAY...
Sky/weather.........Partly cloudy. Slight chance of showers and
snow showers early in the afternoon. Slight
chance of thunderstorms in the afternoon.
Chance of showers and snow showers early in the
afternoon. Chance of precipitation 50 percent.
Chance of thunder...20 percent.
Max temperature.....43-48.
24 hr trend......Unchanged.
Min humidity........54-60 percent.
24 hr trend......14 percent wetter.
20-foot winds.......West winds 10 to 15 mph with gusts to around 25
mph.
Ridge top winds.....West 15 to 20 mph.
Chc of wetting rain.Zero percent until 1200, then 10 percent.
Transport winds.....West 15 to 20 mph.
Mixing Height.......2600-4600 ft agl.
Smoke dispersal.....Fair to good.
.TONIGHT...
Sky/weather.........Mostly cloudy then becoming partly cloudy.
Slight chance of thunderstorms early in the
evening. Chance of showers and snow showers
until early morning. Slight chance of snow
showers early in the morning. Chance of
precipitation 50 percent.
Chance of thunder...20 percent.
Min temperature.....31-36.
24 hr trend......5 degrees warmer.
Max humidity........78-84 percent.
24 hr trend......5 percent drier.
Humidity recovery...Excellent.
20-foot winds.......West winds around 10 mph. Gusts up to 25 mph
until 2400, then 15 mph.
Ridge top winds.....West around 15 mph.
Chc of wetting rain.15 percent until 2400, then 5 percent.
Transport winds.....West around 15 mph.
Mixing Height.......1200-3200 ft agl until 2400, then 400-1200 ft
agl.
Smoke dispersal.....Poor.
.SATURDAY...
Sky/weather.........Partly cloudy. Chance of snow showers early in
the afternoon. Chance of showers and slight
chance of thunderstorms in the afternoon.
Chance of snow showers late in the afternoon.
Chance of precipitation 50 percent.
Chance of thunder...20 percent.
Max temperature.....49-54.
24 hr trend......6 degrees warmer.
Min humidity........43-49 percent.
24 hr trend......15 percent drier.
20-foot winds.......Southwest winds around 10 mph until 1500, then
south. Gusts up to 20 mph.
Ridge top winds.....Southwest around 15 mph.
Chc of wetting rain.Zero percent until 1200, then 10 percent.
Transport winds.....Southwest around 15 mph.
Mixing Height.......1600-3600 ft agl until 1200, then 4000-6000 ft
agl.
Smoke dispersal.....Poor to fair.
.Forecast days 3 through 7......
.SATURDAY NIGHT...Mostly cloudy. Showers, snow showers likely and
slight chance of thunderstorms in the evening, then chance of
showers and snow showers after midnight. Lows in the mid 30s.
Winds generally less than 10 mph.
.SUNDAY...Showers, snow showers and slight chance of
thunderstorms. Lows in the upper 20s. Highs in the mid 40s. West
winds around 10 mph.
.MONDAY...Mostly cloudy. Snow showers and showers likely. Lows in
the lower 30s. Highs in the lower 40s. Northwest winds around
10 mph.
.TUESDAY...Partly cloudy with chance of showers and snow showers.
Lows in the lower 30s. Highs around 50. West winds around 10 mph.
.WEDNESDAY...Mostly clear. Chance of showers, snow showers and
slight chance of thunderstorms. Lows in the mid 30s. Highs in the
lower 50s.
.THURSDAY...Mostly sunny. Slight chance of showers in the
afternoon. Highs in the mid 50s.
$$
WYZ140-171130-
Yellowstone National Park-
Including the cities of Lake, Mammoth, and Old Faithful
330 AM MDT Fri May 16 2025
.TODAY...
Sky/weather.........Mostly cloudy. Slight chance of showers and
snow showers early in the afternoon. Slight
chance of thunderstorms in the afternoon.
Chance of showers and snow showers early in the
afternoon. Chance of precipitation 50 percent.
Chance of thunder...20 percent.
Max temperature.....42-47.
24 hr trend......3 degrees warmer.
Min humidity........61-67 percent.
24 hr trend......4 percent wetter.
20-foot winds.......Upslope/upvalley 5-9 mph until 1200, then
southwest 10 to 15 mph with gusts to around 25
mph.
Ridge top winds.....Southwest 10 to 15 mph.
Chc of wetting rain.Zero percent until 1200, then 10 percent.
Transport winds.....Southwest around 10 mph until 1200, then west
around 20 mph.
Mixing Height.......2000-4000 ft agl.
Smoke dispersal.....Poor to fair.
.TONIGHT...
Sky/weather.........Mostly cloudy. Slight chance of thunderstorms
early in the evening. Chance of showers and
snow showers through the night. Chance of
precipitation 50 percent.
Chance of thunder...20 percent.
Min temperature.....32-37.
24 hr trend......6 degrees warmer.
Max humidity........86-92 percent.
24 hr trend......4 percent drier.
Humidity recovery...Excellent.
20-foot winds.......Southwest winds around 10 mph and gusty.
Ridge top winds.....Southwest around 15 mph.
Chc of wetting rain.25 percent until 2400, then 5 percent.
Transport winds.....Southwest around 15 mph.
Mixing Height.......600-2600 ft agl.
Smoke dispersal.....Poor.
.SATURDAY...
Sky/weather.........Mostly cloudy. Slight chance of showers and
snow showers in the morning, then chance of
showers, snow showers and slight chance of
thunderstorms in the afternoon. Chance of
precipitation 50 percent.
Chance of thunder...20 percent.
Max temperature.....51-56.
24 hr trend......8 degrees warmer.
Min humidity........41-47 percent.
24 hr trend......21 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph until 1200, then
southwest around 10 mph. Gusts up to 15 mph.
Ridge top winds.....South 10 to 15 mph.
Chc of wetting rain.Less than 5 percent.
Transport winds.....South around 15 mph.
Mixing Height.......1600-3600 ft agl until 1200, then 4200-6200 ft
agl.
Smoke dispersal.....Poor to fair.
.Forecast days 3 through 7......
.SATURDAY NIGHT...Showers, snow showers and slight chance of
thunderstorms in the evening, then showers and snow showers
likely after midnight. Lows in the mid 30s. Winds generally less
than 10 mph.
.SUNDAY...Colder. Snow showers, showers and slight chance of
thunderstorms. Lows in the upper 20s. Highs in the lower 40s.
Winds generally less than 10 mph.
.MONDAY...Mostly cloudy. Chance of snow showers and showers. Lows
in the upper 20s. Highs in the lower 40s. Winds generally less
than 10 mph.
.TUESDAY...Partly cloudy with chance of showers and snow showers.
Lows around 30. Highs around 50. Southwest winds around 10 mph.
.WEDNESDAY...Partly cloudy. Chance of showers, slight chance of
thunderstorms and snow showers. Lows in the lower 30s. Highs in
the lower 50s.
.THURSDAY...Partly cloudy. Slight chance of showers in the
afternoon. Highs in the mid 50s.
$$
WYZ415-171130-
North Zone Bridger Teton NF and Grand Teton NP-
Including the cities of Jackson and Moran
330 AM MDT Fri May 16 2025
.TODAY...
Sky/weather.........Partly cloudy then becoming mostly cloudy.
Slight chance of snow showers in the morning.
Chance of showers, snow showers and slight
chance of thunderstorms in the afternoon.
Chance of precipitation 50 percent.
Chance of thunder...20 percent.
Max temperature.....43-48.
24 hr trend......4 degrees warmer.
Min humidity........59-65 percent.
24 hr trend......3 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph until 1200, then west
around 10 mph. Gusts up to 20 mph.
Ridge top winds.....West 10 to 15 mph.
Chc of wetting rain.Less than 5 percent.
Transport winds.....West 10 to 15 mph.
Mixing Height.......2000-4000 ft agl.
Smoke dispersal.....Poor to fair.
.TONIGHT...
Sky/weather.........Mostly cloudy. Slight chance of thunderstorms
in the evening. Chance of showers and snow
showers through the night. Chance of
precipitation 50 percent.
Chance of thunder...20 percent.
Min temperature.....27-32.
24 hr trend......4 degrees warmer.
Max humidity........86-92 percent.
24 hr trend......2 percent drier.
Humidity recovery...Excellent.
20-foot winds.......Southwest winds around 10 mph until 2400, then
downslope/downvalley 4-7 mph. Gusts up to 15
mph.
Ridge top winds.....Southwest 10 to 15 mph.
Chc of wetting rain.Less than 5 percent.
Transport winds.....Southwest 10 to 15 mph.
Mixing Height.......600-2600 ft agl.
Smoke dispersal.....Poor.
.SATURDAY...
Sky/weather.........Partly cloudy then becoming mostly cloudy.
Chance of snow showers early in the afternoon.
Chance of showers and slight chance of
thunderstorms in the afternoon. Chance of
precipitation 50 percent.
Chance of thunder...20 percent.
Max temperature.....50-55.
24 hr trend......6 degrees warmer.
Min humidity........48-54 percent.
24 hr trend......10 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.
Chc of wetting rain.Zero percent until 1200, then 20 percent.
Transport winds.....South 10 to 15 mph.
Mixing Height.......2600-4600 ft agl.
Smoke dispersal.....Poor to fair.
.Forecast days 3 through 7......
.SATURDAY NIGHT...Showers, snow showers and slight chance of
thunderstorms in the evening, then showers and snow showers
likely after midnight. Lows in the mid 30s. Winds generally less
than 10 mph.
.SUNDAY...Colder. Snow showers, showers and slight chance of
thunderstorms. Lows in the mid 20s. Highs around 40. West winds
around 10 mph.
.MONDAY...Partly cloudy. Chance of snow showers and showers. Lows
in the upper 20s. Highs in the lower 40s. Northwest winds around
10 mph.
.TUESDAY...Mostly clear with chance of showers and snow showers.
Lows around 30. Highs around 50. Southwest winds around 10 mph.
.WEDNESDAY...Mostly clear. Slight chance of showers,
thunderstorms and snow showers. Lows in the lower 30s. Highs in
the mid 50s.
.THURSDAY...Mostly sunny. Slight chance of showers in the
afternoon. Highs in the upper 50s.
$$
WYZ416-171130-
West Wind River Mountains/East Zone Bridger Teton NF-
330 AM MDT Fri May 16 2025
.TODAY...
Sky/weather.........Partly cloudy. Slight chance of thunderstorms
and snow showers early in the afternoon. Slight
chance of showers late in the afternoon. Chance
of precipitation 20 percent.
Chance of thunder...20 percent.
Max temperature.....42-47.
24 hr trend......6 degrees warmer.
Min humidity........47-53 percent.
24 hr trend......9 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph until 0900, then west
10 to 15 mph with gusts to around 30 mph.
Ridge top winds.....West 15 to 20 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West 15 to 20 mph.
Mixing Height.......2400-4400 ft agl.
Smoke dispersal.....Fair to good.
.TONIGHT...
Sky/weather.........Partly cloudy. Slight chance of thunderstorms
early in the evening. Slight chance of snow
showers in the evening. Chance of precipitation
20 percent.
Chance of thunder...10 percent.
Min temperature.....26-31.
24 hr trend......4 degrees warmer.
Max humidity........80-86 percent.
24 hr trend......Unchanged.
Humidity recovery...Excellent.
20-foot winds.......West winds 10 to 15 mph with gusts to around 25
mph until 2400, then downslope/downvalley 4-7
mph.
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 2400, then 400-1000 ft
agl.
Smoke dispersal.....Poor.
.SATURDAY...
Sky/weather.........Partly cloudy then becoming mostly cloudy.
Slight chance of snow showers in the morning,
then snow showers likely with possible showers
and thunderstorms in the afternoon. No snow
accumulation. Chance of precipitation 70
percent.
Chance of thunder...20 percent.
Max temperature.....45-50.
24 hr trend......3 degrees warmer.
Min humidity........50-56 percent.
24 hr trend......Unchanged.
20-foot winds.......Upslope/upvalley 5-9 mph until 0900, then
southwest around 10 mph. Gusts up to 20 mph.
Ridge top winds.....Southwest 10 to 15 mph.
Chc of wetting rain.Zero percent until 1200, then 25 percent.
Transport winds.....Southwest around 15 mph.
Mixing Height.......2000-4000 ft agl.
Smoke dispersal.....Poor to fair.
.Forecast days 3 through 7......
.SATURDAY NIGHT...Showers, snow showers and slight chance of
thunderstorms in the evening, then showers and snow showers
likely after midnight. Lows in the lower 30s. Winds generally
less than 10 mph.
.SUNDAY...Snow showers, showers and slight chance of
thunderstorms. Lows in the mid 20s. Highs in the lower 40s. West
winds around 10 mph.
.MONDAY...Partly cloudy with chance of snow showers and showers.
Lows in the mid 20s. Highs in the lower 40s. Northwest winds
around 10 mph.
.TUESDAY...Mostly clear. Chance of showers and snow showers. Lows
in the upper 20s. Highs in the upper 40s. West winds around
10 mph.
.WEDNESDAY...Mostly clear. Slight chance of showers,
thunderstorms and snow showers. Lows in the lower 30s. Highs in
the lower 50s.
.THURSDAY...Mostly sunny. Highs in the mid 50s.
$$
WYZ288-171130-
East Wind River Mountains/South Shoshone NF-
Including the cities of Dubois and South Pass
330 AM MDT Fri May 16 2025
.TODAY...
Sky/weather.........Partly cloudy. Chance of snow showers, slight
chance of showers and thunderstorms in the
afternoon. Chance of precipitation 30 percent.
Chance of thunder...20 percent.
Max temperature.....48-53.
24 hr trend......6 degrees warmer.
Min humidity........44-50 percent.
24 hr trend......3 percent wetter.
20-foot winds.......West winds 10 to 15 mph with gusts to around 30
mph.
Ridge top winds.....West 15 to 20 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West 15 to 20 mph.
Mixing Height.......2000-4000 ft agl until 1200, then 4200-6200 ft
agl.
Smoke dispersal.....Fair to good.
.TONIGHT...
Sky/weather.........Partly cloudy. Slight chance of thunderstorms
early in the evening. Slight chance of snow
showers in the evening. Chance of precipitation
20 percent.
Chance of thunder...10 percent.
Min temperature.....29-34.
24 hr trend......5 degrees warmer.
Max humidity........72-78 percent.
24 hr trend......8 percent drier.
Humidity recovery...Excellent.
20-foot winds.......West winds 10 to 15 mph. Gusts up to 30 mph
until 2400, then 15 mph.
Ridge top winds.....West around 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West around 15 mph.
Mixing Height.......1600-3600 ft agl until 2400, then 400-800 ft
agl.
Smoke dispersal.....Poor to fair.
.SATURDAY...
Sky/weather.........Partly cloudy then becoming mostly cloudy. Snow
showers likely early in the afternoon. Showers
likely and slight chance of thunderstorms in
the afternoon. No snow accumulation. Chance of
precipitation 70 percent.
Chance of thunder...20 percent.
Max temperature.....49-54.
24 hr trend......3 degrees warmer.
Min humidity........44-50 percent.
24 hr trend......4 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 until 1200, then 15 percent.
Transport winds.....Southwest 15 to 20 mph.
Mixing Height.......1400-3400 ft agl until 1200, then 4000-6000 ft
agl.
Smoke dispersal.....Fair to good.
.Forecast days 3 through 7......
.SATURDAY NIGHT...Mostly cloudy. Showers, snow showers and slight
chance of thunderstorms in the evening, then chance of showers
and snow showers after midnight. Lows in the mid 30s. Winds
generally less than 10 mph.
.SUNDAY...Showers with possible snow showers and thunderstorms
likely. Lows in the upper 20s. Highs in the upper 40s. West winds
around 15 mph.
.MONDAY...Mostly cloudy. Snow showers and showers likely. Lows in
the lower 30s. Highs in the lower 40s. Northwest winds around
10 mph.
.TUESDAY...Mostly clear. Chance of showers and snow showers. Lows
in the lower 30s. Highs in the lower 50s. West winds around
15 mph.
.WEDNESDAY...Mostly clear. Slight chance of showers,
thunderstorms and snow showers. Lows in the mid 30s. Highs in the
mid 50s.
.THURSDAY...Mostly sunny. Slight chance of showers in the
afternoon. Highs in the upper 50s.
$$
WYZ414-171130-
Salt and Wyoming Ranges/West Zone Bridger Teton NF-
Including the city of Afton
330 AM MDT Fri May 16 2025
.TODAY...
Sky/weather.........Partly cloudy. Slight chance of showers and
thunderstorms in the afternoon. Chance of
precipitation 20 percent.
Chance of thunder...20 percent.
Max temperature.....44-49.
24 hr trend......6 degrees warmer.
Min humidity........55-61 percent.
24 hr trend......9 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph until 0900, then west
10 to 15 mph. Gusts up to 25 mph.
Ridge top winds.....West around 10 mph until 1200, then around 20
mph.
Chc of wetting rain.Zero percent.
Transport winds.....West 15 to 20 mph.
Mixing Height.......2400-4400 ft agl.
Smoke dispersal.....Poor to fair.
.TONIGHT...
Sky/weather.........Partly cloudy. Slight chance of thunderstorms
in the evening. Slight chance of showers and
snow showers through the night. Chance of
precipitation 20 percent.
Chance of thunder...20 percent.
Min temperature.....29-34.
24 hr trend......5 degrees warmer.
Max humidity........87-93 percent.
24 hr trend......4 percent wetter.
Humidity recovery...Excellent.
20-foot winds.......West winds around 10 mph with gusts to around
25 mph until 2100, then downslope/downvalley
4-7 mph.
Ridge top winds.....West around 15 mph until 2400, then south.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest 10 to 15 mph.
Mixing Height.......1200-3200 ft agl until 2400, then 400-1000 ft
agl.
Smoke dispersal.....Poor.
.SATURDAY...
Sky/weather.........Partly cloudy then becoming mostly cloudy.
Chance of snow showers and slight chance of
showers in the morning, then showers likely and
chance of thunderstorms in the afternoon. No
snow accumulation. Chance of precipitation 70
percent.
Chance of thunder...30 percent.
Max temperature.....48-53.
24 hr trend......4 degrees warmer.
Min humidity........54-60 percent.
24 hr trend......1 percent wetter.
20-foot winds.......Upslope/upvalley 5-9 mph until 0900, then south
around 10 mph. Gusts up to 20 mph.
Ridge top winds.....South 10 to 15 mph.
Chc of wetting rain.Zero percent until 1200, then 40 percent.
Transport winds.....South 10 to 15 mph.
Mixing Height.......2200-4200 ft agl.
Smoke dispersal.....Poor to fair.
.Forecast days 3 through 7......
.SATURDAY NIGHT...Showers and slight chance of thunderstorms in
the evening, then showers and snow showers after midnight. Lows
in the mid 30s. Winds generally less than 10 mph.
.SUNDAY...Colder. Snow showers, showers and slight chance of
thunderstorms. Lows in the mid 20s. Highs in the upper 30s. West
winds around 10 mph.
.MONDAY...Partly cloudy. Chance of snow showers and showers. Lows
in the upper 20s. Highs in the lower 40s. Northwest winds around
10 mph.
.TUESDAY...Mostly clear. Chance of showers and slight chance of
snow showers. Lows in the lower 30s. Highs in the lower 50s. West
winds around 10 mph.
.WEDNESDAY THROUGH THURSDAY...Mostly clear. Lows in the mid 30s.
Highs 56 to 61.
$$
WYZ278-171130-
Upper Green River Basin/Rock Springs BLM-
Including the cities of Big Piney, Farson, and Pinedale
330 AM MDT Fri May 16 2025
.TODAY...
Sky/weather.........Mostly sunny then becoming partly cloudy.
Chance of thunder...0 percent.
Max temperature.....50-55.
24 hr trend......8 degrees warmer.
Min humidity........38-44 percent.
24 hr trend......3 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph until 0900. Winds west
around 20 mph with gusts to around 30 mph after
1500.
Ridge top winds.....West around 10 mph until 1200, then around 20
mph.
Chc of wetting rain.Zero percent.
Transport winds.....West around 10 mph until 1200, then around 20
mph.
Mixing Height.......2400-4400 ft agl until 1200, then 6000-8000 ft
agl.
Smoke dispersal.....Poor to fair until 1200, then very good.
.TONIGHT...
Sky/weather.........Partly cloudy.
Chance of thunder...0 percent.
Min temperature.....28-33.
24 hr trend......5 degrees warmer.
Max humidity........83-89 percent.
24 hr trend......8 percent wetter.
Humidity recovery...Excellent.
20-foot winds.......West winds 10 to 15 mph with gusts to around 30
mph until 2400, then downslope/downvalley 4-7
mph.
Ridge top winds.....Northwest 10 to 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Northwest 10 to 15 mph.
Mixing Height.......2800-4800 ft agl until 2400, then 400-600 ft
agl.
Smoke dispersal.....Fair to good until 2400, then poor.
.SATURDAY...
Sky/weather.........Partly cloudy then becoming mostly cloudy.
Slight chance of showers late in the morning.
Chance of showers and slight chance of
thunderstorms in the afternoon. Chance of
precipitation 50 percent.
Chance of thunder...20 percent.
Max temperature.....52-57.
24 hr trend......2 degrees warmer.
Min humidity........44-50 percent.
24 hr trend......6 percent wetter.
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.
Chc of wetting rain.Zero percent until 1200, then 20 percent.
Transport winds.....South 10 to 15 mph.
Mixing Height.......1200-3200 ft agl until 1200, then 3600-5400 ft
agl.
Smoke dispersal.....Poor to fair.
.Forecast days 3 through 7......
.SATURDAY NIGHT...Showers likely and slight chance of
thunderstorms in the evening, then showers likely after midnight.
Lows in the mid 30s. Winds generally less than 10 mph.
.SUNDAY...Showers with possible snow showers and thunderstorms.
Lows in the upper 20s. Highs in the upper 40s. West winds around
15 mph.
.MONDAY...Partly cloudy with chance of showers and snow showers.
Lows around 30. Highs in the lower 50s. Northwest winds around
15 mph.
.TUESDAY...Mostly clear. Slight chance of showers. Lows in the
lower 30s. Highs around 60. West winds around 10 mph.
.WEDNESDAY THROUGH THURSDAY...Mostly clear. Lows in the mid 30s.
Highs 64 to 69.
$$
WYZ277-171130-
Lincoln and Uinta Counties/Lower Elevations-
Including the cities of Evanston, Fort Bridger, and Kemmerer
330 AM MDT Fri May 16 2025
.TODAY...
Sky/weather.........Partly cloudy.
Chance of thunder...0 percent.
Max temperature.....51-56.
24 hr trend......7 degrees warmer.
Min humidity........41-47 percent.
24 hr trend......5 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph until 0900, then west
15 to 20 mph. Gusts up to 30 mph.
Ridge top winds.....West 15 to 20 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West around 15 mph until 1200, then around 25
mph.
Mixing Height.......2000-4000 ft agl until 1200, then 5600-7000 ft
agl.
Smoke dispersal.....Fair to good until 1200, then very good.
.TONIGHT...
Sky/weather.........Partly cloudy. Slight chance of showers and
snow showers early in the morning. Chance of
precipitation 20 percent.
Chance of thunder...0 percent.
Min temperature.....30-35.
24 hr trend......3 degrees warmer.
Max humidity........86-92 percent.
24 hr trend......12 percent wetter.
Humidity recovery...Excellent.
20-foot winds.......West winds 10 to 15 mph with gusts to around 25
mph until 2400, then downslope/downvalley 4-7
mph.
Ridge top winds.....Northwest 10 to 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West 10 to 15 mph.
Mixing Height.......2400-4400 ft agl until 2400, then 400-600 ft
agl.
Smoke dispersal.....Fair to good until 2400, then poor.
.SATURDAY...
Sky/weather.........Partly cloudy then becoming mostly cloudy.
Chance of snow showers early in the morning.
Chance of showers in the morning, then showers
likely and chance of thunderstorms in the
afternoon. No snow accumulation. Chance of
precipitation 70 percent.
Chance of thunder...30 percent.
Max temperature.....53-58.
24 hr trend......3 degrees warmer.
Min humidity........44-50 percent.
24 hr trend......5 percent wetter.
20-foot winds.......Upslope/upvalley 5-9 mph until 1200, then south
around 10 mph. Gusts up to 20 mph.
Ridge top winds.....South 10 to 15 mph.
Chc of wetting rain.5 percent until 1200, then 40 percent.
Transport winds.....South 10 to 15 mph.
Mixing Height.......1000-3000 ft agl until 1200, then 3800-5800 ft
agl.
Smoke dispersal.....Poor until 1200, then good.
.Forecast days 3 through 7......
.SATURDAY NIGHT...Showers likely and slight chance of
thunderstorms in the evening, then showers after midnight. Lows
in the mid 30s. Winds generally less than 10 mph.
.SUNDAY...Cooler. Showers, snow showers and slight chance of
thunderstorms. Lows in the upper 20s. Highs in the mid 40s. West
winds around 15 mph.
.MONDAY...Partly cloudy with chance of snow showers and slight
chance of showers. Lows in the upper 20s. Highs in the upper 40s.
Northwest winds around 15 mph.
.TUESDAY...Warmer. Mostly clear. Slight chance of showers. Lows
in the lower 30s. Highs in the upper 50s. West winds around
10 mph.
.WEDNESDAY THROUGH THURSDAY...Clear. Lows in the mid 30s. Highs
65 to 70.
$$
WYZ279-171130-
Sweetwater County/Rock Springs BLM/Flaming Gorge NRA-
Including the cities of Green River, Rock Springs, and Wamsutter
330 AM MDT Fri May 16 2025
.TODAY...
Sky/weather.........Mostly sunny then becoming partly cloudy.
Chance of thunder...0 percent.
Max temperature.....53-58.
24 hr trend......8 degrees warmer.
Min humidity........30-36 percent.
24 hr trend......7 percent drier.
20-foot winds.......West winds 10 to 15 mph with gusts to around 25
mph until 1200, then around 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.Zero percent.
Transport winds.....West 20 to 25 mph.
Mixing Height.......2600-4600 ft agl until 1200, then 7000-8800 ft
agl.
Smoke dispersal.....Fair to good until 1200, then excellent.
.TONIGHT...
Sky/weather.........Partly cloudy.
Chance of thunder...0 percent.
Min temperature.....35-40.
24 hr trend......5 degrees warmer.
Max humidity........77-83 percent.
24 hr trend......4 percent wetter.
Humidity recovery...Excellent.
20-foot winds.......West winds 10 to 15 mph with gusts to around 30
mph until 2400, then downslope/downvalley 4-7
mph.
Ridge top winds.....West around 20 mph until 2400, then southwest
around 10 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West around 20 mph until 2400, then around 10
mph.
Mixing Height.......3400-5400 ft agl until 2400, then 400-600 ft
agl.
Smoke dispersal.....Good until 2400, then poor.
.SATURDAY...
Sky/weather.........Partly cloudy then becoming mostly cloudy.
Slight chance of showers in the morning, then
chance of showers and slight chance of
thunderstorms in the afternoon. Chance of
precipitation 50 percent.
Chance of thunder...20 percent.
Max temperature.....60-65.
24 hr trend......4 degrees warmer.
Min humidity........31-37 percent.
24 hr trend......5 percent wetter.
20-foot winds.......Upslope/upvalley 5-9 mph until 0900, then
southwest 10 to 15 mph. Gusts up to 25 mph.
Ridge top winds.....Southwest 10 to 15 mph.
Chc of wetting rain.Zero percent until 1200, then 15 percent.
Transport winds.....Southwest around 10 mph until 1200, then around
25 mph.
Mixing Height.......2000-4000 ft agl until 1200, then 5800-7800 ft
agl.
Smoke dispersal.....Poor to fair until 1200, then very good.
.Forecast days 3 through 7......
.SATURDAY NIGHT...Mostly cloudy. Chance of showers and slight
chance of thunderstorms in the evening, then chance of showers
after midnight. Lows around 40. Winds generally less than 10 mph.
.SUNDAY...Mostly cloudy with showers with possible snow showers
and thunderstorms. Lows in the lower 30s. Highs in the mid 50s.
West winds around 15 mph.
.MONDAY...Partly cloudy. Chance of showers and snow showers. Lows
in the lower 30s. Highs in the lower 50s. Northwest winds around
15 mph.
.TUESDAY...Mostly clear. Lows in the mid 30s. Highs in the lower
60s. West winds around 10 mph.
.WEDNESDAY THROUGH THURSDAY...Mostly clear. Lows around 40. Highs
68 to 73.
$$
WYZ289-171130-
Granite/Green/Ferris/Rattlesnake Mountains-
Including the city of Jeffrey City
330 AM MDT Fri May 16 2025
.TODAY...
Sky/weather.........Partly cloudy.
Chance of thunder...0 percent.
Max temperature.....56-61.
24 hr trend......7 degrees warmer.
Min humidity........27-33 percent.
24 hr trend......4 percent drier.
20-foot winds.......West winds 10 to 15 mph until 1500, then around
20 mph. Gusts up to 30 mph.
Ridge top winds.....West 15 to 20 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West 15 to 20 mph.
Mixing Height.......2200-4200 ft agl until 1200, then 6600-8600 ft
agl.
Smoke dispersal.....Fair to good until 1200, then very good.
.TONIGHT...
Sky/weather.........Partly cloudy.
Chance of thunder...0 percent.
Min temperature.....36-41.
24 hr trend......4 degrees warmer.
Max humidity........73-79 percent.
24 hr trend......14 percent drier.
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 20 mph until 2400, then southwest
around 10 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West around 20 mph until 2400, then around 10
mph.
Mixing Height.......3200-5200 ft agl until 2400, then 400-600 ft
agl.
Smoke dispersal.....Good until 2400, then poor.
.SATURDAY...
Sky/weather.........Partly cloudy. Chance of showers and slight
chance of thunderstorms in the afternoon.
Chance of precipitation 50 percent.
Chance of thunder...20 percent.
Max temperature.....60-65.
24 hr trend......3 degrees warmer.
Min humidity........30-36 percent.
24 hr trend......2 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.
Chc of wetting rain.Less than 5 percent.
Transport winds.....Southwest 15 to 20 mph.
Mixing Height.......2000-4000 ft agl until 1200, then 5200-7200 ft
agl.
Smoke dispersal.....Poor to fair until 1200, then very good.
.Forecast days 3 through 7......
.SATURDAY NIGHT...Mostly cloudy. Showers likely and slight chance
of thunderstorms in the evening, then chance of showers after
midnight. Lows in the lower 40s. South winds around 10 mph.
.SUNDAY...Showers with possible snow showers and thunderstorms
likely. Lows in the mid 30s. Highs in the upper 50s. Southwest
winds around 15 mph.
.MONDAY...Cooler. Mostly cloudy with showers with snow showers
likely. Lows in the mid 30s. Highs in the upper 40s. Northwest
winds around 10 mph.
.TUESDAY...Mostly clear with chance of showers. Lows in the upper
30s. Highs in the upper 50s. West winds around 10 mph.
.WEDNESDAY...Mostly clear. Slight chance of showers and
thunderstorms. Lows around 40. Highs in the mid 60s.
.THURSDAY...Mostly sunny. Highs around 70.
$$
WYZ300-171130-
Casper Mountain-
330 AM MDT Fri May 16 2025
.TODAY...
Sky/weather.........Partly cloudy.
Chance of thunder...0 percent.
Max temperature.....55-60.
24 hr trend......6 degrees warmer.
Min humidity........29-35 percent.
24 hr trend......8 percent drier.
20-foot winds.......West winds 15 to 20 mph with gusts to around 35
mph.
Ridge top winds.....West 20 to 25 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West around 25 mph.
Mixing Height.......1600-3600 ft agl until 1200, then 6000-8000 ft
agl.
Smoke dispersal.....Fair to good until 1200, then very good to
excellent.
.TONIGHT...
Sky/weather.........Partly cloudy.
Chance of thunder...0 percent.
Min temperature.....35-40.
24 hr trend......3 degrees warmer.
Max humidity........72-78 percent.
24 hr trend......20 percent drier.
Humidity recovery...Excellent.
20-foot winds.......Northwest winds around 10 mph until 2100, then
downslope/downvalley 4-7 mph until 0300, then
south around 10 mph. Gusts up to 20 mph.
Ridge top winds.....North around 15 mph until 2400, then south.
Chc of wetting rain.Zero percent.
Transport winds.....North around 15 mph until 2400, then south.
Mixing Height.......2600-4600 ft agl until 2400, then 200-400 ft
agl.
Smoke dispersal.....Fair to good until 2400, then poor.
.SATURDAY...
Sky/weather.........Partly cloudy. Showers likely and slight chance
of thunderstorms in the afternoon. Chance of
precipitation 60 percent.
Chance of thunder...20 percent.
Max temperature.....59-64.
24 hr trend......4 degrees warmer.
Min humidity........32-38 percent.
24 hr trend......Unchanged.
20-foot winds.......Southwest winds around 10 mph with higher
gusts.
Ridge top winds.....Southwest around 15 mph.
Chc of wetting rain.Zero percent until 1200, then 10 percent.
Transport winds.....Southwest 15 to 20 mph.
Mixing Height.......2200-4200 ft agl until 1200, then 4600-6600 ft
agl.
Smoke dispersal.....Good.
.Forecast days 3 through 7......
.SATURDAY NIGHT...Mostly cloudy. Chance of showers and slight
chance of thunderstorms in the evening. Lows in the lower 40s.
South winds around 10 mph.
.SUNDAY...Showers with possible snow showers and thunderstorms
likely. Lows in the mid 30s. Highs in the upper 50s. Southwest
winds around 10 mph.
.MONDAY...Colder. Mostly cloudy with showers and snow showers.
Lows in the lower 30s. Highs in the lower 40s. Northwest winds
around 10 mph.
.TUESDAY...Partly cloudy. Chance of showers and snow showers.
Lows in the mid 30s. Highs around 50. West winds around 10 mph.
.WEDNESDAY...Mostly clear. Slight chance of showers and
thunderstorms. Lows in the upper 30s. Highs in the upper 50s.
.THURSDAY...Mostly sunny. Highs in the mid 60s.
$$