Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS Riverton, WY
Issued by NWS Riverton, WY
823
FNUS55 KRIW 150944
FWFRIW
Fire Weather Planning Forecast for Western and Central Wyoming
National Weather Service Riverton WY
344 AM MDT Thu May 15 2025
.DISCUSSION...
...Yellowstone NP and Teton dispatch areas (includes fire weather
zones 140...414...415...and 416)...
Another weather system will move across the area and bring another
round of showers and thunderstorms, with a wetting rain possible
in some of the northern zones. Wind gusts over 30 mph are possible
across the southern zones, with lighter wind in the north. Relative
humidity will remain well above critical levels. Mixing and smoke
dispersal will range from fair to poor in the northern zones to
good to very good in the southern zones.
...Cody dispatch area (includes fire weather zones 275...276...
282...283...285...286...287...288...and 289)...
Another weather system will move across the area and bring another
round of showers and thunderstorms. Wind gusts over 30 mph are possible
across the northern zones, with the strongest wind in Zone 275. w
with lighter wind in the north. Relative humidity will remain well
above critical levels. Mixing and smoke dispersal will be generally
good to excellent.
...Casper dispatch area (includes fire weather zones 277...278...
279...280...281...285...289...and 300)...
Another weather system will move across the area and bring another
round of showers and thunderstorms, with the greatest coverage of
showers and storms in the zones East of the Divide. Wind gusts over
40 mph are possible in Zone 281, with gusts to around 30 mph in most
of the other zones. Relative humidity will remain above critical
levels. Mixing and smoke dispersal will be generally
good to excellent.
...Thunderstorms imply strong gusty and erratic winds...
WYZ280-161145-
Natrona County/Casper BLM-
Including the cities of Casper and Midwest
344 AM MDT Thu May 15 2025
.TODAY...
Sky/weather.........Partly cloudy. Slight chance of showers in the
morning, then chance of showers and slight
chance of thunderstorms in the afternoon.
Chance of precipitation 50 percent.
Chance of thunder...20 percent.
Max temperature.....52-57.
24 hr trend......4 degrees cooler.
Min humidity........43-49 percent.
24 hr trend......9 percent wetter.
20-foot winds.......Breezy. Northwest winds 20 to 25 mph with gusts
to around 40 mph.
Ridge top winds.....Northwest 25 to 30 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Northwest 25 to 30 mph.
Mixing Height.......2200-4200 ft agl until 1200, then 6200-8200 ft
agl.
Smoke dispersal.....Good until 1200, then excellent.
.TONIGHT...
Sky/weather.........Partly cloudy. Slight chance of thunderstorms
early in the evening. Slight chance of showers
until early morning. Chance of precipitation 20
percent.
Chance of thunder...20 percent.
Min temperature.....36-41.
24 hr trend......2 degrees cooler.
Max humidity........80-86 percent.
24 hr trend......Unchanged.
Humidity recovery...Excellent.
20-foot winds.......Northwest winds around 20 mph with gusts to
around 30 mph until 2100, then west around 10
mph with gusts to around 30 mph.
Ridge top winds.....Northwest 15 to 20 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Northwest 15 to 20 mph.
Mixing Height.......2600-4600 ft agl until 2400, then 600-1200 ft
agl.
Smoke dispersal.....Good until 2400, then poor.
.FRIDAY...
Sky/weather.........Partly cloudy. Slight chance of showers in the
morning, then chance of showers in the
afternoon. Chance of showers 30 percent.
Chance of thunder...0 percent.
Max temperature.....59-64.
24 hr trend......6 degrees warmer.
Min humidity........34-40 percent.
24 hr trend......7 percent drier.
20-foot winds.......Northwest winds around 15 mph with gusts to
around 30 mph.
Ridge top winds.....Northwest around 20 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Northwest around 20 mph.
Mixing Height.......2400-4400 ft agl until 1200, then 6600-8600 ft
agl.
Smoke dispersal.....Fair to good until 1200, then very good to
excellent.
.Forecast days 3 through 7......
.FRIDAY NIGHT...Partly cloudy. Lows in the upper 30s. Northeast
winds around 10 mph.
.SATURDAY...Partly cloudy. Chance of showers and slight chance of
thunderstorms. Lows in the lower 40s. Highs in the upper 60s.
South winds around 10 mph.
.SUNDAY...Showers and chance of thunderstorms. Lows in the lower
40s. Highs in the mid 60s. Southeast winds around 15 mph.
.MONDAY...Cooler. Showers and slight chance of thunderstorms.
Lows in the upper 30s. Highs in the lower 50s. North winds around
15 mph.
.TUESDAY...Partly cloudy with showers likely and slight chance of
thunderstorms. Lows in the upper 30s. Highs in the upper 50s.
.WEDNESDAY...Mostly sunny. Slight chance of showers in the
morning, then chance of showers and slight chance of
thunderstorms in the afternoon. Highs in the mid 60s.
$$
WYZ283-161145-
Upper Wind River Basin/Wind River Basin-
Including the cities of Crowheart, Lander, Riverton, and Shoshoni
344 AM MDT Thu May 15 2025
.TODAY...
Sky/weather.........Partly 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.....49-54.
24 hr trend......3 degrees cooler.
Min humidity........41-47 percent.
24 hr trend......1 percent drier.
20-foot winds.......Northwest winds 10 to 15 mph with gusts to
around 30 mph.
Ridge top winds.....Northwest 15 to 20 mph.
Chc of wetting rain.Zero percent until 1200, then 10 percent.
Transport winds.....Northwest 15 to 20 mph.
Mixing Height.......2600-4600 ft agl until 1200, then 5800-7800 ft
agl.
Smoke dispersal.....Fair to good until 1200, then very good.
.TONIGHT...
Sky/weather.........Partly cloudy. Slight chance of thunderstorms
early in the evening. Chance of showers in the
evening, then slight chance of showers after
midnight. Chance of precipitation 50 percent.
Chance of thunder...20 percent.
Min temperature.....34-39.
24 hr trend......1 degree cooler.
Max humidity........78-84 percent.
24 hr trend......4 percent wetter.
Humidity recovery...Excellent.
20-foot winds.......Northwest winds around 10 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.10 percent until 2400, then zero percent.
Transport winds.....Northwest 10 to 15 mph.
Mixing Height.......2000-4000 ft agl until 2400, then 800-1200 ft
agl.
Smoke dispersal.....Poor to fair.
.FRIDAY...
Sky/weather.........Partly cloudy. Slight chance of showers in the
afternoon. Chance of showers 20 percent.
Chance of thunder...0 percent.
Max temperature.....57-62.
24 hr trend......8 degrees warmer.
Min humidity........38-44 percent.
24 hr trend......5 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph until 1200, then north
around 10 mph. Gusts up to 15 mph.
Ridge top winds.....Northwest 10 to 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Northwest 10 to 15 mph.
Mixing Height.......2000-4000 ft agl until 1200, then 5800-7800 ft
agl.
Smoke dispersal.....Fair to good.
.Forecast days 3 through 7......
.FRIDAY NIGHT...Partly cloudy. Slight chance of showers in the
evening. Lows in the upper 30s. Winds generally less than 10 mph.
.SATURDAY...Partly cloudy. Chance of showers and slight chance of
thunderstorms. Lows in the lower 40s. Highs in the mid 60s. Winds
generally less than 10 mph.
.SUNDAY...Showers and chance of thunderstorms. Lows in the lower
40s. Highs in the mid 60s. South winds around 10 mph.
.MONDAY...Cooler. Mostly cloudy with showers and slight chance of
thunderstorms. Lows in the upper 30s. Highs in the mid 50s. North
winds around 10 mph.
.TUESDAY...Partly cloudy with chance of showers and slight chance
of thunderstorms. Lows in the upper 30s. Highs in the lower 60s.
.WEDNESDAY...Mostly sunny. Slight chance of showers in the
morning, then slight chance of showers and thunderstorms in the
afternoon. Highs in the mid 60s.
$$
WYZ285-161145-
South Bighorn Mountains-
344 AM MDT Thu May 15 2025
.TODAY...
Sky/weather.........Mostly cloudy then becoming partly cloudy.
Chance of showers and snow showers through the
day. Slight chance of thunderstorms in the
afternoon. Chance of precipitation 50 percent.
Chance of thunder...20 percent.
Max temperature.....44-49.
24 hr trend......2 degrees cooler.
Min humidity........53-59 percent.
24 hr trend......1 percent drier.
20-foot winds.......Breezy. Northwest winds 20 to 25 mph with gusts
to around 45 mph.
Ridge top winds.....Northwest 25 to 30 mph.
Chc of wetting rain.10 percent.
Transport winds.....Northwest 25 to 30 mph.
Mixing Height.......1000-3000 ft agl until 1200, then 3000-5000 ft
agl.
Smoke dispersal.....Poor to fair until 1200, then good to very
good.
.TONIGHT...
Sky/weather.........Partly cloudy then becoming mostly cloudy.
Chance of showers, slight chance of
thunderstorms and snow showers in the evening,
then chance of snow showers and slight chance
of showers after midnight. Chance of
precipitation 50 percent.
Chance of thunder...20 percent.
Min temperature.....34-39.
24 hr trend......1 degree warmer.
Max humidity........75-81 percent.
24 hr trend......8 percent drier.
Humidity recovery...Excellent.
20-foot winds.......Northwest winds 15 to 20 mph. Gusts up to 40
mph until 2400, then 30 mph.
Ridge top winds.....Northwest around 20 mph.
Chc of wetting rain.7 percent.
Transport winds.....Northwest around 20 mph.
Mixing Height.......1200-3200 ft agl until 2400, then 400-1000 ft
agl.
Smoke dispersal.....Poor to fair.
.FRIDAY...
Sky/weather.........Partly cloudy. Slight chance of showers early
in the morning. Chance of snow showers in the
morning. Chance of showers in the late morning
and afternoon. Chance of precipitation 40
percent.
Chance of thunder...0 percent.
Max temperature.....53-58.
24 hr trend......8 degrees warmer.
Min humidity........40-46 percent.
24 hr trend......14 percent drier.
20-foot winds.......Northwest winds around 15 mph with gusts to
around 30 mph.
Ridge top winds.....Northwest around 20 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Northwest around 20 mph.
Mixing Height.......1200-3200 ft agl until 1200, then 4000-6000 ft
agl.
Smoke dispersal.....Fair to good.
.Forecast days 3 through 7......
.FRIDAY NIGHT...Partly cloudy with slight chance of showers and
snow showers. Lows in the upper 30s. Winds generally less than
10 mph.
.SATURDAY...Partly cloudy. Showers likely and slight chance of
thunderstorms. Lows in the lower 40s. Highs around 60. South
winds around 10 mph.
.SUNDAY...Showers and chance of thunderstorms. Lows in the upper
30s. Highs around 60. East winds around 15 mph.
.MONDAY...Cooler. Showers, snow showers and slight chance of
thunderstorms. Lows in the upper 30s. Highs in the mid 40s.
Northwest winds around 15 mph.
.TUESDAY...Partly cloudy with showers likely with possible snow
showers and thunderstorms. Lows in the upper 30s. Highs in the
lower 50s.
.WEDNESDAY...Mostly sunny. Chance of showers and snow showers in
the morning, then chance of showers and slight chance of
thunderstorms in the afternoon. Highs in the mid 50s.
$$
WYZ281-161145-
Johnson County/Casper BLM-
Including the cities of Buffalo and Kaycee
344 AM MDT Thu May 15 2025
.TODAY...
Sky/weather.........Mostly cloudy then becoming partly cloudy.
Chance of showers through the day. Slight
chance of thunderstorms in the afternoon.
Chance of precipitation 50 percent.
Chance of thunder...20 percent.
Max temperature.....50-55.
24 hr trend......3 degrees cooler.
Min humidity........50-56 percent.
24 hr trend......9 percent wetter.
20-foot winds.......Breezy. Northwest winds 20 to 25 mph with gusts
to around 45 mph.
Ridge top winds.....Northwest 25 to 30 mph.
Chc of wetting rain.Zero percent until 1200, then 10 percent.
Transport winds.....Northwest 25 to 30 mph.
Mixing Height.......2000-4000 ft agl until 1200, then 4000-5800 ft
agl.
Smoke dispersal.....Fair to good until 1200, then very 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.....37-42.
24 hr trend......2 degrees cooler.
Max humidity........74-80 percent.
24 hr trend......6 percent drier.
Humidity recovery...Excellent.
20-foot winds.......Breezy. Northwest winds around 25 mph with
gusts to around 45 mph until 2100, then around
15 mph with gusts to around 45 mph.
Ridge top winds.....Northwest 20 to 25 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Northwest 20 to 25 mph.
Mixing Height.......1800-3800 ft agl until 2400, then 800-1000 ft
agl.
Smoke dispersal.....Poor to fair.
.FRIDAY...
Sky/weather.........Partly cloudy. Slight chance of showers in the
morning, then chance of showers in the
afternoon. Chance of showers 40 percent.
Chance of thunder...0 percent.
Max temperature.....55-60.
24 hr trend......4 degrees warmer.
Min humidity........44-50 percent.
24 hr trend......8 percent drier.
20-foot winds.......Northwest winds around 15 mph with gusts to
around 35 mph.
Ridge top winds.....Northwest around 20 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Northwest around 25 mph.
Mixing Height.......2000-4000 ft agl until 1200, then 4800-6600 ft
agl.
Smoke dispersal.....Good.
.Forecast days 3 through 7......
.FRIDAY NIGHT...Partly cloudy. Lows in the upper 30s. Winds
generally less than 10 mph.
.SATURDAY...Partly cloudy. Chance of showers and slight chance of
thunderstorms. Lows in the mid 40s. Highs in the upper 60s.
Southeast winds around 10 mph.
.SUNDAY...Showers and chance of thunderstorms. Lows in the lower
40s. Highs in the mid 60s. Southeast winds around 15 mph.
.MONDAY...Cooler, showers. Lows in the upper 30s. Highs in the
lower 50s. North winds around 15 mph.
.TUESDAY...Partly cloudy. Showers likely and slight chance of
thunderstorms. Lows in the upper 30s. Highs in the upper 50s.
.WEDNESDAY...Mostly sunny. Chance of showers in the morning, then
chance of showers and slight chance of thunderstorms in the
afternoon. Highs in the lower 60s.
$$
WYZ282-161145-
South Bighorn Basin/Worland BLM-
Including the cities of Ten Sleep, Thermopolis, and Worland
344 AM MDT Thu May 15 2025
.TODAY...
Sky/weather.........Partly cloudy. Slight chance of showers in the
morning. Chance of showers and slight chance of
thunderstorms in the afternoon. Chance of
precipitation 50 percent.
Chance of thunder...20 percent.
Max temperature.....49-54.
24 hr trend......1 degree warmer.
Min humidity........48-54 percent.
24 hr trend......11 percent drier.
20-foot winds.......Northwest winds 10 to 15 mph until 1200, then
around 20 mph. Gusts up to 35 mph.
Ridge top winds.....Northwest 20 to 25 mph.
Chc of wetting rain.Less than 5 percent.
Transport winds.....Northwest 20 to 25 mph.
Mixing Height.......2000-4000 ft agl until 1200, then 4800-6600 ft
agl.
Smoke dispersal.....Poor to fair until 1200, then good to very
good.
.TONIGHT...
Sky/weather.........Partly cloudy then becoming mostly 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.....32-37.
24 hr trend......1 degree cooler.
Max humidity........82-88 percent.
24 hr trend......5 percent drier.
Humidity recovery...Excellent.
20-foot winds.......Northwest winds 10 to 15 mph. Gusts up to 30
mph until 2400, then 20 mph.
Ridge top winds.....Northwest 15 to 20 mph.
Chc of wetting rain.10 percent until 2400, then zero percent.
Transport winds.....Northwest 15 to 20 mph.
Mixing Height.......2000-4000 ft agl until 2400, then 600-1400 ft
agl.
Smoke dispersal.....Poor to fair.
.FRIDAY...
Sky/weather.........Partly cloudy. Slight chance of showers in the
morning, then chance of showers in the
afternoon. Chance of showers 40 percent.
Chance of thunder...0 percent.
Max temperature.....54-59.
24 hr trend......6 degrees warmer.
Min humidity........41-47 percent.
24 hr trend......9 percent drier.
20-foot winds.......Northwest winds around 10 mph with higher
gusts.
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 5800-7000 ft
agl.
Smoke dispersal.....Fair to good.
.Forecast days 3 through 7......
.FRIDAY NIGHT...Partly cloudy. Chance of showers in the evening,
then slight chance of showers after midnight. Lows around 40.
Winds generally less than 10 mph.
.SATURDAY...Partly cloudy. Chance of showers and slight chance of
thunderstorms. Lows in the mid 40s. Highs in the upper 60s. Winds
generally less than 10 mph.
.SUNDAY...Showers and chance of thunderstorms. Lows in the lower
40s. Highs in the upper 60s. North winds around 10 mph.
.MONDAY...Cooler. Mostly cloudy with showers. Lows around 40.
Highs in the mid 50s. Northwest winds around 15 mph.
.TUESDAY...Partly cloudy with chance of showers and slight chance
of thunderstorms. Lows around 40. Highs in the lower 60s.
.WEDNESDAY...Mostly sunny. Slight chance of showers in the
morning, then chance of showers and slight chance of
thunderstorms in the afternoon. Highs in the mid 60s.
$$
WYZ275-161145-
North Bighorn Basin/Worland BLM-
Including the cities of Greybull, Lovell, and Powell
344 AM MDT Thu May 15 2025
.TODAY...
Sky/weather.........Mostly cloudy then becoming partly cloudy.
Slight chance of showers in the morning. Slight
chance of thunderstorms in the afternoon.
Chance of showers in the afternoon. Chance of
precipitation 50 percent.
Chance of thunder...20 percent.
Max temperature.....47-52.
24 hr trend......3 degrees warmer.
Min humidity........56-62 percent.
24 hr trend......7 percent drier.
20-foot winds.......Breezy. Northwest winds 15 to 20 mph with gusts
to around 40 mph until 1500, then around 25 mph
with gusts to around 40 mph.
Ridge top winds.....Northwest 20 to 25 mph.
Chc of wetting rain.Less than 5 percent.
Transport winds.....Northwest 20 to 25 mph.
Mixing Height.......2000-4000 ft agl until 1200, then 4800-6600 ft
agl.
Smoke dispersal.....Fair to good until 1200, then very good.
.TONIGHT...
Sky/weather.........Partly cloudy then becoming mostly cloudy.
Slight chance of thunderstorms early in the
evening. Slight chance of showers until early
morning. Chance of precipitation 20 percent.
Chance of thunder...20 percent.
Min temperature.....32-37.
24 hr trend......1 degree cooler.
Max humidity........80-86 percent.
24 hr trend......4 percent drier.
Humidity recovery...Excellent.
20-foot winds.......Northwest winds 15 to 20 mph with gusts to
around 40 mph until 2400, then around 10 mph
and gusty.
Ridge top winds.....Northwest 15 to 20 mph.
Chc of wetting rain.Less than 5 percent.
Transport winds.....Northwest 15 to 20 mph.
Mixing Height.......1800-3800 ft agl until 2400, then 600-1000 ft
agl.
Smoke dispersal.....Fair to good until 2400, then poor.
.FRIDAY...
Sky/weather.........Partly cloudy. Slight chance of showers in the
morning, then chance of showers in the
afternoon. Chance of showers 50 percent.
Chance of thunder...0 percent.
Max temperature.....53-58.
24 hr trend......5 degrees warmer.
Min humidity........44-50 percent.
24 hr trend......6 percent drier.
20-foot winds.......Northwest winds around 10 mph with higher
gusts.
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 5400-7200 ft
agl.
Smoke dispersal.....Fair to good.
.Forecast days 3 through 7......
.FRIDAY NIGHT...Partly cloudy. Chance of showers in the evening,
then slight chance of showers after midnight. Lows in the lower
40s. Winds generally less than 10 mph.
.SATURDAY...Warmer. Partly cloudy. Chance of showers. Lows in the
mid 40s. Highs in the upper 60s. Winds generally less than
10 mph.
.SUNDAY...Showers and chance of thunderstorms. Lows in the lower
40s. Highs in the upper 60s. Northwest winds around 15 mph.
.MONDAY...Cooler. Mostly cloudy with showers. Lows around 40.
Highs in the mid 50s. Northwest winds around 15 mph.
.TUESDAY...Partly cloudy with chance of showers and slight chance
of thunderstorms. Lows in the lower 40s. Highs in the lower 60s.
.WEDNESDAY...Mostly sunny. Slight chance of showers in the
morning, then chance of showers and slight chance of
thunderstorms in the afternoon. Highs in the mid 60s.
$$
WYZ276-161145-
Cody Foothills-
Including the cities of Clark, Cody, and Meeteetse
344 AM MDT Thu May 15 2025
.TODAY...
Sky/weather.........Partly cloudy. Slight chance of showers late in
the morning. Slight chance of thunderstorms in
the afternoon. Chance of showers in the
afternoon. Chance of precipitation 50 percent.
Chance of thunder...20 percent.
Max temperature.....48-53.
24 hr trend......1 degree warmer.
Min humidity........49-55 percent.
24 hr trend......5 percent drier.
20-foot winds.......Northwest winds 10 to 15 mph with gusts to
around 30 mph.
Ridge top winds.....Northwest 15 to 20 mph.
Chc of wetting rain.Zero percent until 1200, then 10 percent.
Transport winds.....Northwest 15 to 20 mph.
Mixing Height.......2400-4400 ft agl until 1200, then 4800-6800 ft
agl.
Smoke dispersal.....Good.
.TONIGHT...
Sky/weather.........Mostly cloudy then becoming partly cloudy.
Slight chance of thunderstorms early in the
evening. Chance of showers in the evening, then
slight chance of showers after midnight. Chance
of precipitation 40 percent.
Chance of thunder...20 percent.
Min temperature.....34-39.
24 hr trend......2 degrees cooler.
Max humidity........73-79 percent.
24 hr trend......10 percent drier.
Humidity recovery...Excellent.
20-foot winds.......Northwest winds 10 to 15 mph with gusts to
around 35 mph until 2400, then
downslope/downvalley 4-7 mph.
Ridge top winds.....Northwest 10 to 15 mph.
Chc of wetting rain.10 percent until 2400, then zero percent.
Transport winds.....Northwest 10 to 15 mph.
Mixing Height.......1600-3600 ft agl until 2400, then 600-1200 ft
agl.
Smoke dispersal.....Poor.
.FRIDAY...
Sky/weather.........Partly cloudy then becoming mostly cloudy.
Chance of showers in the afternoon. Chance of
showers 40 percent.
Chance of thunder...0 percent.
Max temperature.....53-58.
24 hr trend......5 degrees warmer.
Min humidity........48-54 percent.
24 hr trend......1 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph until 1200, then
northeast around 10 mph. Gusts up to 15 mph.
Ridge top winds.....Northwest around 10 mph until 1200, then
northeast.
Chc of wetting rain.Zero percent until 1200, then 10 percent.
Transport winds.....Northwest 10 to 15 mph.
Mixing Height.......2000-4000 ft agl until 1200, then 4400-6000 ft
agl.
Smoke dispersal.....Fair to good.
.Forecast days 3 through 7......
.FRIDAY NIGHT...Partly cloudy. Chance of showers in the evening,
then slight chance of showers after midnight. Lows in the upper
30s. Winds generally less than 10 mph.
.SATURDAY...Mostly cloudy. Chance of showers. Lows in the mid
40s. Highs in the lower 60s. Winds generally less than 10 mph.
.SUNDAY...Showers and chance of thunderstorms. Lows around 40.
Highs around 60. North winds around 10 mph.
.MONDAY...Cooler. Mostly cloudy with showers and slight chance of
thunderstorms. Lows in the upper 30s. Highs around 50. North
winds around 15 mph.
.TUESDAY...Partly cloudy with showers likely and slight chance of
thunderstorms. Lows in the upper 30s. Highs in the upper 50s.
.WEDNESDAY...Partly cloudy. Slight chance of showers in the
morning, then chance of showers and slight chance of
thunderstorms in the afternoon. Highs in the lower 60s.
$$
WYZ287-161145-
Owl Creek Mountains-
344 AM MDT Thu May 15 2025
.TODAY...
Sky/weather.........Partly cloudy then becoming mostly cloudy.
Chance of showers in the morning, then showers
likely and slight chance of thunderstorms in
the afternoon. Chance of precipitation 70
percent.
Chance of thunder...20 percent.
Max temperature.....43-48.
24 hr trend......Unchanged.
Min humidity........57-63 percent.
24 hr trend......5 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph until 0900, then north
10 to 15 mph with gusts to around 25 mph.
Ridge top winds.....North 10 to 15 mph.
Chc of wetting rain.Zero percent until 1200, then 20 percent.
Transport winds.....Northwest around 15 mph.
Mixing Height.......2000-4000 ft agl until 1200, then 4000-6000 ft
agl.
Smoke dispersal.....Fair to good.
.TONIGHT...
Sky/weather.........Mostly cloudy. Showers likely and slight chance
of thunderstorms early in the evening, then
chance of showers late in the evening. Slight
chance of showers and snow showers after
midnight. No snow accumulation. Chance of
precipitation 70 percent.
Chance of thunder...20 percent.
Min temperature.....34-39.
24 hr trend......1 degree warmer.
Max humidity........79-85 percent.
24 hr trend......8 percent drier.
Humidity recovery...Excellent.
20-foot winds.......North winds around 10 mph with gusts to around
25 mph until 0300, then downslope/downvalley
4-7 mph.
Ridge top winds.....Northwest 10 to 15 mph.
Chc of wetting rain.20 percent until 2400, then zero percent.
Transport winds.....North 10 to 15 mph.
Mixing Height.......800-2800 ft agl.
Smoke dispersal.....Poor.
.FRIDAY...
Sky/weather.........Partly cloudy. Slight chance of showers in the
morning, then chance of showers in the
afternoon. Chance of showers 40 percent.
Chance of thunder...0 percent.
Max temperature.....52-57.
24 hr trend......8 degrees warmer.
Min humidity........48-54 percent.
24 hr trend......8 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph until 1200, then
northeast around 10 mph. Gusts up to 15 mph.
Ridge top winds.....North around 10 mph until 1200, then northeast.
Chc of wetting rain.Zero percent until 1200, then 10 percent.
Transport winds.....Northwest 10 to 15 mph.
Mixing Height.......1600-3600 ft agl until 1200, then 3800-5000 ft
agl.
Smoke dispersal.....Poor to fair.
.Forecast days 3 through 7......
.FRIDAY NIGHT...Partly cloudy. Chance of showers in the evening.
Lows in the upper 30s. Winds generally less than 10 mph.
.SATURDAY...Partly cloudy. Showers likely and slight chance of
thunderstorms. Lows in the lower 40s. Highs around 60. Winds
generally less than 10 mph.
.SUNDAY...Showers and chance of thunderstorms. Lows in the upper
30s. Highs around 60. North winds around 10 mph.
.MONDAY...Cooler. Mostly cloudy with showers and slight chance of
thunderstorms. Lows in the upper 30s. Highs in the upper 40s.
North winds around 15 mph.
.TUESDAY...Partly cloudy with showers likely and slight chance of
thunderstorms. Lows in the upper 30s. Highs in the mid 50s.
.WEDNESDAY...Mostly sunny. Slight chance of showers in the
morning, then chance of showers and slight chance of
thunderstorms in the afternoon. Highs around 60.
$$
WYZ286-161145-
Absaroka Mountains/North Shoshone NF-
Including the city of Pahaska
344 AM MDT Thu May 15 2025
.TODAY...
Sky/weather.........Partly cloudy. Chance of snow showers and
showers through the day. Slight chance of
thunderstorms in the afternoon. Chance of
precipitation 50 percent.
Chance of thunder...20 percent.
Max temperature.....40-45.
24 hr trend......4 degrees cooler.
Min humidity........57-63 percent.
24 hr trend......19 percent wetter.
20-foot winds.......West winds 10 to 15 mph with gusts to around 30
mph.
Ridge top winds.....West around 20 mph.
Chc of wetting rain.Zero percent until 1200, then 20 percent.
Transport winds.....Northwest around 20 mph.
Mixing Height.......2800-4800 ft agl.
Smoke dispersal.....Fair to good.
.TONIGHT...
Sky/weather.........Partly cloudy. Chance of showers and slight
chance of thunderstorms in the evening. Chance
of snow showers through the night. Chance of
precipitation 50 percent.
Chance of thunder...20 percent.
Min temperature.....27-32.
24 hr trend......1 degree cooler.
Max humidity........77-83 percent.
24 hr trend......7 percent drier.
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 10 to 15 mph.
Chc of wetting rain.15 percent until 2400, then zero percent.
Transport winds.....Northwest around 15 mph.
Mixing Height.......1200-3200 ft agl until 2400, then 400-1200 ft
agl.
Smoke dispersal.....Poor.
.FRIDAY...
Sky/weather.........Partly cloudy then becoming 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.....46-51.
24 hr trend......7 degrees warmer.
Min humidity........54-60 percent.
24 hr trend......6 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph until 0900, then west
10 to 15 mph with gusts to around 25 mph.
Ridge top winds.....West around 15 mph.
Chc of wetting rain.Zero percent until 1200, then 15 percent.
Transport winds.....West around 15 mph.
Mixing Height.......2800-4800 ft agl.
Smoke dispersal.....Fair to good.
.Forecast days 3 through 7......
.FRIDAY NIGHT...Mostly cloudy. Chance of showers and snow showers
in the evening, then slight chance of showers and snow showers
after midnight. Lows in the lower 30s. West winds around 10 mph.
.SATURDAY...Mostly cloudy. Showers, snow showers likely and
slight chance of thunderstorms. Lows in the mid 30s. Highs in the
lower 50s. South winds around 10 mph.
.SUNDAY...Showers, snow showers and chance of thunderstorms. Lows
in the mid 30s. Highs in the upper 40s. North winds around
10 mph.
.MONDAY...Mostly cloudy with showers, snow showers and slight
chance of thunderstorms. Lows in the lower 30s. Highs in the
lower 40s. Northwest winds around 10 mph.
.TUESDAY...Partly cloudy with showers, snow showers likely and
slight chance of thunderstorms. Lows in the lower 30s. Highs in
the upper 40s.
.WEDNESDAY...Mostly sunny. Chance of snow showers and slight
chance of showers in the morning, then chance of showers, snow
showers and slight chance of thunderstorms in the afternoon.
Highs around 50.
$$
WYZ140-161145-
Yellowstone National Park-
Including the cities of Lake, Mammoth, and Old Faithful
344 AM MDT Thu May 15 2025
.TODAY...
Sky/weather.........Mostly cloudy. Chance of snow showers and
showers in the morning, then snow showers,
showers likely and slight chance of
thunderstorms in the afternoon. Snow
accumulation up to 1 inch. Chance of
precipitation 70 percent.
Chance of thunder...20 percent.
Max temperature.....38-43.
24 hr trend......2 degrees cooler.
Min humidity........66-72 percent.
24 hr trend......13 percent wetter.
20-foot winds.......Upslope/upvalley 5-9 mph until 0900, then west
around 10 mph. Gusts up to 20 mph.
Ridge top winds.....West around 15 mph.
Chc of wetting rain.5 percent until 1200, then 40 percent.
Transport winds.....West 15 to 20 mph.
Mixing Height.......2000-4000 ft agl.
Smoke dispersal.....Poor to fair.
.TONIGHT...
Sky/weather.........Mostly cloudy. Chance of showers and slight
chance of thunderstorms in the evening. Chance
of snow showers through the night. Slight
chance of showers after midnight. Patchy fog
after midnight. Chance of precipitation 50
percent.
Chance of thunder...20 percent.
Min temperature.....27-32.
24 hr trend......2 degrees cooler.
Max humidity........85-91 percent.
24 hr trend......5 percent drier.
Humidity recovery...Excellent.
20-foot winds.......West winds around 10 mph until 2100, then
downslope/downvalley 4-7 mph. Gusts up to 15
mph.
Ridge top winds.....West around 10 mph.
Chc of wetting rain.20 percent until 2400, then 5 percent.
Transport winds.....Northwest around 10 mph.
Mixing Height.......1000-3000 ft agl until 2400, then 400-1000 ft
agl.
Smoke dispersal.....Poor.
.FRIDAY...
Sky/weather.........Mostly cloudy. Chance of snow showers early in
the afternoon. Chance of showers in the
afternoon. Slight chance of thunderstorms late
in the afternoon. Chance of precipitation 50
percent.
Chance of thunder...20 percent.
Max temperature.....46-51.
24 hr trend......7 degrees warmer.
Min humidity........56-62 percent.
24 hr trend......13 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.....Southwest 10 to 15 mph.
Chc of wetting rain.Zero percent until 1200, then 15 percent.
Transport winds.....West 10 to 15 mph.
Mixing Height.......2200-4200 ft agl.
Smoke dispersal.....Poor to fair.
.Forecast days 3 through 7......
.FRIDAY NIGHT...Cloudy. Showers and snow showers likely in the
evening, then chance of snow showers and showers after midnight.
Lows in the lower 30s. Winds generally less than 10 mph.
.SATURDAY...Mostly cloudy with showers, snow showers likely and
slight chance of thunderstorms. Lows in the mid 30s. Highs in the
lower 50s. Winds generally less than 10 mph.
.SUNDAY...Showers with possible snow showers and thunderstorms
likely. Lows in the lower 30s. Highs in the upper 40s. Winds
generally less than 10 mph.
.MONDAY...Mostly cloudy with showers and snow showers likely.
Lows in the lower 30s. Highs in the mid 40s. Winds generally less
than 10 mph.
.TUESDAY...Partly cloudy. Showers likely with possible snow
showers and thunderstorms. Lows in the upper 20s. Highs in the
upper 40s.
.WEDNESDAY...Partly 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. Highs in the
lower 50s.
$$
WYZ415-161145-
North Zone Bridger Teton NF and Grand Teton NP-
Including the cities of Jackson and Moran
344 AM MDT Thu May 15 2025
.TODAY...
Sky/weather.........Mostly cloudy. Chance of snow showers in the
morning. Chance of showers through the day.
Snow showers likely and slight chance of
thunderstorms in the afternoon. Snow
accumulation up to 1 inch. Chance of
precipitation 70 percent.
Chance of thunder...20 percent.
Max temperature.....38-43.
24 hr trend......2 degrees cooler.
Min humidity........67-73 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 around 15 mph.
Chc of wetting rain.5 percent until 1200, then 25 percent.
Transport winds.....West 15 to 20 mph.
Mixing Height.......1200-3200 ft agl until 1200, then 3200-4600 ft
agl.
Smoke dispersal.....Poor to fair.
.TONIGHT...
Sky/weather.........Partly cloudy. Chance of showers and slight
chance of thunderstorms in the evening. Chance
of snow showers through the night. Chance of
precipitation 50 percent.
Chance of thunder...20 percent.
Min temperature.....24-29.
24 hr trend......3 degrees cooler.
Max humidity........84-90 percent.
24 hr trend......10 percent drier.
Humidity recovery...Excellent.
20-foot winds.......West winds around 10 mph and gusty until 2100,
then downslope/downvalley 4-7 mph.
Ridge top winds.....West 10 to 15 mph.
Chc of wetting rain.20 percent until 2400, then 5 percent.
Transport winds.....West 10 to 15 mph.
Mixing Height.......800-2800 ft agl.
Smoke dispersal.....Poor.
.FRIDAY...
Sky/weather.........Partly cloudy then becoming mostly cloudy.
Chance of showers, snow showers and slight
chance of thunderstorms in the afternoon.
Chance of precipitation 40 percent.
Chance of thunder...20 percent.
Max temperature.....46-51.
24 hr trend......6 degrees warmer.
Min humidity........56-62 percent.
24 hr trend......12 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph until 1200, then west
around 10 mph. Gusts up to 15 mph.
Ridge top winds.....Southwest 10 to 15 mph.
Chc of wetting rain.Zero percent until 1200, then 10 percent.
Transport winds.....West 10 to 15 mph.
Mixing Height.......2000-4000 ft agl.
Smoke dispersal.....Poor to fair.
.Forecast days 3 through 7......
.FRIDAY NIGHT...Mostly cloudy. Chance of showers and snow showers
in the evening, then slight chance of snow showers after
midnight. Lows around 30. Winds generally less than 10 mph.
.SATURDAY...Mostly cloudy. Showers, snow showers and slight
chance of thunderstorms. Lows in the mid 30s. Highs in the lower
50s. Winds generally less than 10 mph.
.SUNDAY...Showers, snow showers and chance of thunderstorms. Lows
in the lower 30s. Highs in the mid 40s. Winds generally less than
10 mph.
.MONDAY...Mostly cloudy with showers, snow showers likely and
slight chance of thunderstorms. Lows in the lower 30s. Highs in
the mid 40s. Northwest winds around 10 mph.
.TUESDAY...Partly cloudy with showers, snow showers likely and
slight chance of thunderstorms. Lows in the upper 20s. Highs in
the upper 40s.
.WEDNESDAY...Mostly sunny. Slight chance of showers and snow
showers in the morning, then chance of showers and snow showers
in the afternoon. Highs in the lower 50s.
$$
WYZ416-161145-
West Wind River Mountains/East Zone Bridger Teton NF-
344 AM MDT Thu May 15 2025
.TODAY...
Sky/weather.........Partly cloudy then becoming mostly cloudy.
Slight chance of snow showers in the morning.
Chance of snow showers late in the morning.
Slight chance of thunderstorms in the
afternoon. Chance of precipitation 50 percent.
Chance of thunder...20 percent.
Max temperature.....36-41.
24 hr trend......1 degree cooler.
Min humidity........60-66 percent.
24 hr trend......10 percent wetter.
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 until 1200, then 15 percent.
Transport winds.....Northwest 15 to 20 mph.
Mixing Height.......1400-3400 ft agl until 1200, then 3400-5000 ft
agl.
Smoke dispersal.....Fair to good.
.TONIGHT...
Sky/weather.........Partly cloudy. Slight chance of thunderstorms
early in the evening. Chance of snow showers in
the evening. Chance of precipitation 50
percent.
Chance of thunder...20 percent.
Min temperature.....21-26.
24 hr trend......3 degrees cooler.
Max humidity........79-85 percent.
24 hr trend......10 percent drier.
Humidity recovery...Excellent.
20-foot winds.......Northwest 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.Less than 5 percent.
Transport winds.....Northwest 10 to 15 mph.
Mixing Height.......1200-3200 ft agl until 2400, then 400-1200 ft
agl.
Smoke dispersal.....Poor.
.FRIDAY...
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.....44-49.
24 hr trend......9 degrees warmer.
Min humidity........46-52 percent.
24 hr trend......14 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph until 0900, then west
around 10 mph. Gusts up to 25 mph.
Ridge top winds.....West 10 to 15 mph.
Chc of wetting rain.Less than 5 percent.
Transport winds.....West around 15 mph.
Mixing Height.......1400-3400 ft agl until 1200, then 3400-5400 ft
agl.
Smoke dispersal.....Poor to fair.
.Forecast days 3 through 7......
.FRIDAY NIGHT...Partly cloudy. Slight chance of showers and snow
showers in the evening. Lows in the upper 20s. Winds generally
less than 10 mph.
.SATURDAY...Mostly cloudy with showers, snow showers likely and
slight chance of thunderstorms. Lows in the lower 30s. Highs in
the upper 40s. South winds around 10 mph.
.SUNDAY...Showers, snow showers and chance of thunderstorms. Lows
around 30. Highs in the mid 40s. Southwest winds around 10 mph.
.MONDAY...Mostly cloudy with showers with possible snow showers
and thunderstorms likely. Lows in the upper 20s. Highs in the
lower 40s. Northwest winds around 10 mph.
.TUESDAY...Partly cloudy with chance of snow showers, showers and
slight chance of thunderstorms. Lows in the upper 20s. Highs in
the mid 40s.
.WEDNESDAY...Mostly sunny. Slight chance of snow showers in the
morning, then chance of snow showers and slight chance of showers
in the afternoon. Highs around 50.
$$
WYZ288-161145-
East Wind River Mountains/South Shoshone NF-
Including the cities of Dubois and South Pass
344 AM MDT Thu May 15 2025
.TODAY...
Sky/weather.........Partly cloudy. Slight chance of showers and
snow showers late in the morning. Chance of
snow showers and showers late in the morning.
Slight chance of thunderstorms in the
afternoon. Chance of precipitation 50 percent.
Chance of thunder...20 percent.
Max temperature.....40-45.
24 hr trend......2 degrees cooler.
Min humidity........55-61 percent.
24 hr trend......12 percent wetter.
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 until 1200, then 15 percent.
Transport winds.....West 20 to 25 mph.
Mixing Height.......2000-4000 ft agl until 1200, then 4200-6200 ft
agl.
Smoke dispersal.....Fair to good until 1200, then good to very
good.
.TONIGHT...
Sky/weather.........Partly cloudy. Slight chance of thunderstorms
early in the evening. Chance of snow showers
and showers in the evening, then slight chance
of snow showers after midnight. Chance of
precipitation 50 percent.
Chance of thunder...20 percent.
Min temperature.....25-30.
24 hr trend......2 degrees cooler.
Max humidity........75-81 percent.
24 hr trend......2 percent drier.
Humidity recovery...Excellent.
20-foot winds.......West winds 10 to 15 mph. Gusts up to 35 mph
until 2400, then 15 mph.
Ridge top winds.....West around 15 mph.
Chc of wetting rain.10 percent until 2400, then zero percent.
Transport winds.....West 10 to 15 mph.
Mixing Height.......1400-3400 ft agl until 2400, then 400-800 ft
agl.
Smoke dispersal.....Poor to fair.
.FRIDAY...
Sky/weather.........Partly cloudy. Chance of snow showers early in
the afternoon. Chance of showers in the
afternoon. Chance of snow showers late in the
afternoon. Chance of precipitation 40 percent.
Chance of thunder...0 percent.
Max temperature.....48-53.
24 hr trend......8 degrees warmer.
Min humidity........44-50 percent.
24 hr trend......9 percent drier.
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.Less than 5 percent.
Transport winds.....West 15 to 20 mph.
Mixing Height.......1600-3600 ft agl until 1200, then 4400-6400 ft
agl.
Smoke dispersal.....Fair to good.
.Forecast days 3 through 7......
.FRIDAY NIGHT...Partly cloudy. Chance of snow showers and slight
chance of showers in the evening. Lows in the lower 30s. West
winds around 10 mph.
.SATURDAY...Mostly cloudy. Showers, snow showers and slight
chance of thunderstorms. Lows in the mid 30s. Highs in the lower
50s. Southwest winds around 10 mph.
.SUNDAY...Showers, snow showers and chance of thunderstorms. Lows
in the mid 30s. Highs around 50. Southwest winds around 10 mph.
.MONDAY...Showers, snow showers and slight chance of
thunderstorms. Lows in the lower 30s. Highs in the mid 40s.
Northwest winds around 10 mph.
.TUESDAY...Partly cloudy with snow showers likely with possible
showers and thunderstorms. Lows in the lower 30s. Highs around
50.
.WEDNESDAY...Mostly sunny. Slight chance of showers and snow
showers in the morning, then chance of showers and snow showers
in the afternoon. Highs in the lower 50s.
$$
WYZ414-161145-
Salt and Wyoming Ranges/West Zone Bridger Teton NF-
Including the city of Afton
344 AM MDT Thu May 15 2025
.TODAY...
Sky/weather.........Mostly cloudy. Snow showers and showers likely
through the day. Slight chance of thunderstorms
in the afternoon. Snow accumulation up to 2
inches. Chance of precipitation 70 percent.
Chance of thunder...20 percent.
Max temperature.....38-43.
24 hr trend......1 degree cooler.
Min humidity........68-74 percent.
24 hr trend......10 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.30 percent.
Transport winds.....West 15 to 20 mph.
Mixing Height.......1600-3600 ft agl.
Smoke dispersal.....Poor to fair.
.TONIGHT...
Sky/weather.........Partly cloudy. Slight chance of showers,
thunderstorms and snow showers early in the
evening. Chance of precipitation 20 percent.
Chance of thunder...20 percent.
Min temperature.....25-30.
24 hr trend......3 degrees cooler.
Max humidity........84-90 percent.
24 hr trend......13 percent drier.
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 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.
.FRIDAY...
Sky/weather.........Partly cloudy then becoming mostly cloudy.
Chance of showers early in the afternoon.
Slight chance of thunderstorms late in the
afternoon. Slight chance of showers late in the
afternoon. Chance of precipitation 30 percent.
Chance of thunder...20 percent.
Max temperature.....45-50.
24 hr trend......8 degrees warmer.
Min humidity........53-59 percent.
24 hr trend......18 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph until 0900, then west
around 10 mph. Gusts up to 25 mph.
Ridge top winds.....West 10 to 15 mph.
Chc of wetting rain.Zero percent until 1200, then 10 percent.
Transport winds.....West around 15 mph.
Mixing Height.......2200-4200 ft agl.
Smoke dispersal.....Poor to fair.
.Forecast days 3 through 7......
.FRIDAY NIGHT...Partly cloudy. Slight chance of showers and snow
showers in the evening. Lows around 30. Winds generally less than
10 mph.
.SATURDAY...Showers with possible thunderstorms and snow showers
likely. Lows in the mid 30s. Highs in the lower 50s. South winds
around 10 mph.
.SUNDAY...Showers, snow showers and chance of thunderstorms. Lows
in the lower 30s. Highs in the mid 40s. West winds around 10 mph.
.MONDAY...Mostly cloudy with showers, snow showers likely and
slight chance of thunderstorms. Lows in the lower 30s. Highs in
the mid 40s. Northwest winds around 10 mph.
.TUESDAY...Partly cloudy with chance of showers, snow showers and
slight chance of thunderstorms. Lows around 30. Highs in the
upper 40s.
.WEDNESDAY...Mostly sunny. Slight chance of showers and snow
showers in the morning, then slight chance of showers in the
afternoon. Highs in the mid 50s.
$$
WYZ278-161145-
Upper Green River Basin/Rock Springs BLM-
Including the cities of Big Piney, Farson, and Pinedale
344 AM MDT Thu May 15 2025
.TODAY...
Sky/weather.........Partly cloudy. Slight chance of showers in the
morning. Chance of snow showers through the
day. Chance of 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......1 degree cooler.
Min humidity........49-55 percent.
24 hr trend......4 percent wetter.
20-foot winds.......West winds 10 to 15 mph until 1200, then around
20 mph. Gusts up to 35 mph.
Ridge top winds.....West 20 to 25 mph.
Chc of wetting rain.Zero percent until 1200, then 10 percent.
Transport winds.....West 20 to 25 mph.
Mixing Height.......2200-4200 ft agl until 1200, then 5000-6400 ft
agl.
Smoke dispersal.....Fair to good until 1200, then very good.
.TONIGHT...
Sky/weather.........Partly cloudy. Slight chance of thunderstorms
early in the evening. Slight chance of showers
early in the evening. Slight chance of snow
showers in the evening. Chance of precipitation
20 percent.
Chance of thunder...20 percent.
Min temperature.....25-30.
24 hr trend......4 degrees cooler.
Max humidity........81-87 percent.
24 hr trend......Unchanged.
Humidity recovery...Excellent.
20-foot winds.......Northwest winds around 20 mph with gusts to
around 35 mph until 2100. Downslope/downvalley
4-7 mph after 2400.
Ridge top winds.....Northwest around 20 mph until 2400, then around
10 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Northwest around 20 mph until 2400, then around
10 mph.
Mixing Height.......2200-4200 ft agl until 2400, then 400-800 ft
agl.
Smoke dispersal.....Fair to good until 2400, then poor.
.FRIDAY...
Sky/weather.........Partly cloudy. Slight chance of showers early
in the afternoon. Chance of showers 20 percent.
Chance of thunder...0 percent.
Max temperature.....51-56.
24 hr trend......8 degrees warmer.
Min humidity........36-42 percent.
24 hr trend......8 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph until 1200, then west
around 15 mph with gusts to around 25 mph.
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.......2000-4000 ft agl until 1200, then 5400-7200 ft
agl.
Smoke dispersal.....Poor to fair until 1200, then good to very
good.
.Forecast days 3 through 7......
.FRIDAY NIGHT...Partly cloudy. Lows around 30. Winds generally
less than 10 mph.
.SATURDAY...Mostly cloudy with showers likely and chance of
thunderstorms. Lows in the upper 30s. Highs in the upper 50s.
Winds generally less than 10 mph.
.SUNDAY...Showers with possible thunderstorms and snow showers.
Lows in the lower 30s. Highs in the mid 50s. Southwest winds
around 10 mph.
.MONDAY...Mostly cloudy. Showers, snow showers likely and slight
chance of thunderstorms. Lows in the lower 30s. Highs in the
lower 50s. Northwest winds around 10 mph.
.TUESDAY...Mostly clear with chance of showers, slight chance of
thunderstorms and snow showers. Lows in the lower 30s. Highs in
the upper 50s.
.WEDNESDAY...Mostly sunny. Slight chance of showers in the
afternoon. Highs in the lower 60s.
$$
WYZ277-161145-
Lincoln and Uinta Counties/Lower Elevations-
Including the cities of Evanston, Fort Bridger, and Kemmerer
344 AM MDT Thu May 15 2025
.TODAY...
Sky/weather.........Mostly cloudy then becoming partly cloudy.
Chance of showers and snow showers through the
day. Slight chance of thunderstorms in the
afternoon. Chance of precipitation 50 percent.
Chance of thunder...20 percent.
Max temperature.....43-48.
24 hr trend......Unchanged.
Min humidity........51-57 percent.
24 hr trend......5 percent wetter.
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.5 percent.
Transport winds.....West 20 to 25 mph.
Mixing Height.......1400-3400 ft agl until 1200, then 4200-6200 ft
agl.
Smoke dispersal.....Poor to fair until 1200, then very good.
.TONIGHT...
Sky/weather.........Partly cloudy. Slight chance of showers and
thunderstorms early in the evening. Slight
chance of snow showers early in the evening.
Chance of precipitation 20 percent.
Chance of thunder...20 percent.
Min temperature.....25-30.
24 hr trend......4 degrees cooler.
Max humidity........83-89 percent.
24 hr trend......7 percent drier.
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 around 10
mph.
Chc of wetting rain.Zero percent.
Transport winds.....West around 20 mph until 2400, then around 10
mph.
Mixing Height.......1800-3800 ft agl until 2400, then 400-600 ft
agl.
Smoke dispersal.....Fair to good until 2400, then poor.
.FRIDAY...
Sky/weather.........Partly cloudy then becoming mostly cloudy.
Slight chance of showers in the afternoon.
Slight chance of thunderstorms late in the
afternoon. Chance of precipitation 20 percent.
Chance of thunder...10 percent.
Max temperature.....52-57.
24 hr trend......8 degrees warmer.
Min humidity........39-45 percent.
24 hr trend......10 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph until 0900, then west
10 to 15 mph with gusts to around 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.......1600-3600 ft agl until 1200, then 4600-5800 ft
agl.
Smoke dispersal.....Poor to fair until 1200, then good to very
good.
.Forecast days 3 through 7......
.FRIDAY NIGHT...Partly cloudy. Lows in the lower 30s. Winds
generally less than 10 mph.
.SATURDAY...Showers likely with possible thunderstorms and snow
showers. Lows in the upper 30s. Highs in the upper 50s. Winds
generally less than 10 mph.
.SUNDAY...Showers with possible thunderstorms and snow showers.
Lows in the lower 30s. Highs in the lower 50s. West winds around
10 mph.
.MONDAY...Partly cloudy. Showers, snow showers likely and slight
chance of thunderstorms. Lows in the lower 30s. Highs in the
upper 40s. West winds around 15 mph.
.TUESDAY...Mostly clear with chance of showers, slight chance of
thunderstorms and snow showers. Lows in the lower 30s. Highs in
the mid 50s.
.WEDNESDAY...Sunny. Highs in the lower 60s.
$$
WYZ279-161145-
Sweetwater County/Rock Springs BLM/Flaming Gorge NRA-
Including the cities of Green River, Rock Springs, and Wamsutter
344 AM MDT Thu May 15 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.....45-50.
24 hr trend......2 degrees cooler.
Min humidity........40-46 percent.
24 hr trend......6 percent wetter.
20-foot winds.......Breezy. West winds 20 to 25 mph with gusts to
around 40 mph.
Ridge top winds.....West 25 to 30 mph.
Chc of wetting rain.Less than 5 percent.
Transport winds.....West 25 to 30 mph.
Mixing Height.......2400-4400 ft agl until 1200, then 6200-8200 ft
agl.
Smoke dispersal.....Good until 1200, then excellent.
.TONIGHT...
Sky/weather.........Partly cloudy. Slight chance of showers and
thunderstorms early in the evening. Slight
chance of snow showers early in the evening.
Chance of precipitation 20 percent.
Chance of thunder...20 percent.
Min temperature.....30-35.
24 hr trend......2 degrees cooler.
Max humidity........71-77 percent.
24 hr trend......3 percent drier.
Humidity recovery...Excellent.
20-foot winds.......West winds 15 to 20 mph with gusts to around 35
mph until 2400, then around 10 mph and gusty.
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 until 2400, then 400-800 ft
agl.
Smoke dispersal.....Good until 2400, then poor.
.FRIDAY...
Sky/weather.........Partly cloudy.
Chance of thunder...0 percent.
Max temperature.....56-61.
24 hr trend......9 degrees warmer.
Min humidity........30-36 percent.
24 hr trend......10 percent drier.
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.
Transport winds.....West around 15 mph until 1200, then around 25
mph.
Mixing Height.......2200-4200 ft agl until 1200, then 6200-8200 ft
agl.
Smoke dispersal.....Fair to good until 1200, then very good to
excellent.
.Forecast days 3 through 7......
.FRIDAY NIGHT...Partly cloudy. Lows in the mid 30s. West winds
around 10 mph.
.SATURDAY...Mostly cloudy. Chance of showers and slight chance of
thunderstorms. Lows around 40. Highs in the mid 60s. South winds
around 10 mph.
.SUNDAY...Mostly cloudy with chance of showers and thunderstorms.
Lows in the mid 30s. Highs in the upper 50s. Southwest winds
around 15 mph.
.MONDAY...Mostly cloudy with showers likely and slight chance of
thunderstorms. Lows in the upper 30s. Highs in the mid 50s. West
winds around 15 mph.
.TUESDAY...Partly cloudy with chance of showers and slight chance
of thunderstorms. Lows in the upper 30s. Highs around 60.
.WEDNESDAY...Mostly sunny. Highs in the mid 60s.
$$
WYZ289-161145-
Granite/Green/Ferris/Rattlesnake Mountains-
Including the city of Jeffrey City
344 AM MDT Thu May 15 2025
.TODAY...
Sky/weather.........Partly 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.....48-53.
24 hr trend......4 degrees cooler.
Min humidity........39-45 percent.
24 hr trend......11 percent wetter.
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 until 1200, then 10 percent.
Transport winds.....West 20 to 25 mph.
Mixing Height.......2400-4400 ft agl until 1200, then 4800-6800 ft
agl.
Smoke dispersal.....Fair to good until 1200, then very good.
.TONIGHT...
Sky/weather.........Partly cloudy. Chance of showers, slight chance
of thunderstorms and snow showers in the
evening, then slight chance of showers after
midnight. Chance of precipitation 50 percent.
Chance of thunder...20 percent.
Min temperature.....32-37.
24 hr trend......1 degree cooler.
Max humidity........81-87 percent.
24 hr trend......4 percent wetter.
Humidity recovery...Excellent.
20-foot winds.......Northwest winds 10 to 15 mph. Gusts up to 30
mph until 2400, then 15 mph.
Ridge top winds.....Northwest 15 to 20 mph.
Chc of wetting rain.10 percent until 2400, then zero percent.
Transport winds.....Northwest 15 to 20 mph.
Mixing Height.......1600-3600 ft agl until 2400, then 400-1000 ft
agl.
Smoke dispersal.....Poor to fair.
.FRIDAY...
Sky/weather.........Partly cloudy. Slight chance of snow showers
early in the morning. Slight chance of showers
through the day. Chance of precipitation 20
percent.
Chance of thunder...0 percent.
Max temperature.....56-61.
24 hr trend......9 degrees warmer.
Min humidity........27-33 percent.
24 hr trend......10 percent drier.
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 6400-8400 ft
agl.
Smoke dispersal.....Poor to fair until 1200, then very good.
.Forecast days 3 through 7......
.FRIDAY NIGHT...Partly cloudy. Lows in the mid 30s. West winds
around 10 mph.
.SATURDAY...Mostly cloudy. Chance of showers and slight chance of
thunderstorms. Lows in the lower 40s. Highs in the mid 60s. South
winds around 10 mph.
.SUNDAY...Showers likely and slight chance of thunderstorms. Lows
in the upper 30s. Highs in the lower 60s. Southwest winds around
15 mph.
.MONDAY...Cooler. Showers and slight chance of thunderstorms.
Lows in the mid 30s. Highs in the lower 50s. Northwest winds
around 10 mph.
.TUESDAY...Partly cloudy with chance of showers and slight chance
of thunderstorms. Lows in the upper 30s. Highs in the upper 50s.
.WEDNESDAY...Mostly sunny. Slight chance of showers in the
morning, then slight chance of showers and thunderstorms in the
afternoon. Highs in the lower 60s.
$$
WYZ300-161145-
Casper Mountain-
344 AM MDT Thu May 15 2025
.TODAY...
Sky/weather.........Mostly cloudy. Chance of showers and snow
showers through the day. Slight chance of
thunderstorms in the afternoon. Chance of
precipitation 50 percent.
Chance of thunder...20 percent.
Max temperature.....48-53.
24 hr trend......4 degrees cooler.
Min humidity........42-48 percent.
24 hr trend......16 percent wetter.
20-foot winds.......Breezy. West winds 20 to 25 mph with gusts to
around 40 mph.
Ridge top winds.....West around 25 mph.
Chc of wetting rain.7 percent.
Transport winds.....West 25 to 30 mph.
Mixing Height.......2000-4000 ft agl until 1200, then 5400-7400 ft
agl.
Smoke dispersal.....Good until 1200, then very good to excellent.
.TONIGHT...
Sky/weather.........Mostly cloudy. Chance of showers, snow showers
and slight chance of thunderstorms in the
evening, then slight chance of showers and snow
showers after midnight. Chance of precipitation
40 percent.
Chance of thunder...20 percent.
Min temperature.....33-38.
24 hr trend......1 degree cooler.
Max humidity........80-86 percent.
24 hr trend......1 percent wetter.
Humidity recovery...Excellent.
20-foot winds.......West winds 10 to 15 mph. Gusts up to 30 mph
until 2400, then 20 mph.
Ridge top winds.....West 15 to 20 mph.
Chc of wetting rain.7 percent.
Transport winds.....Northwest around 20 mph.
Mixing Height.......1800-3800 ft agl until 2400, then 400-1400 ft
agl.
Smoke dispersal.....Poor to fair.
.FRIDAY...
Sky/weather.........Mostly cloudy then becoming partly cloudy.
Chance of snow showers in the morning. Chance
of showers through the day. Chance of
precipitation 30 percent.
Chance of thunder...0 percent.
Max temperature.....55-60.
24 hr trend......7 degrees warmer.
Min humidity........32-38 percent.
24 hr trend......10 percent drier.
20-foot winds.......West winds 15 to 20 mph with gusts to around 30
mph.
Ridge top winds.....West around 20 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West around 25 mph.
Mixing Height.......2000-4000 ft agl until 1200, then 6000-8000 ft
agl.
Smoke dispersal.....Fair to good until 1200, then very good to
excellent.
.Forecast days 3 through 7......
.FRIDAY NIGHT...Partly cloudy. Lows in the mid 30s. Winds
generally less than 10 mph.
.SATURDAY...Partly cloudy. Chance of showers and slight chance of
thunderstorms. Lows in the lower 40s. Highs in the lower 60s.
South winds around 10 mph.
.SUNDAY...Showers and chance of thunderstorms. Lows in the upper
30s. Highs in the upper 50s. South winds around 10 mph.
.MONDAY...Cooler. Showers with possible snow showers and
thunderstorms. Lows in the mid 30s. Highs in the upper 40s.
Northwest winds around 10 mph.
.TUESDAY...Partly cloudy. Showers likely with possible snow
showers and thunderstorms. Lows in the mid 30s. Highs in the
lower 50s.
.WEDNESDAY...Mostly sunny. Slight chance of showers in the
morning, then chance of showers and slight chance of
thunderstorms in the afternoon. Highs in the upper 50s.
$$