Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS Riverton, WY
Issued by NWS Riverton, WY
471
FNUS55 KRIW 160745
FWFRIW
Fire Weather Planning Forecast for Western and Central Wyoming
National Weather Service Riverton WY
145 AM MDT Sat Aug 16 2025
.DISCUSSION...
...Yellowstone NP and Teton dispatch areas (includes fire weather
zones 140...414...415...and 416)...
Scattered thunderstorms expected once again this afternoon with
the best chances between 1 to 5PM. Frequent lightning and gusty
outflow winds over 40 mph the main hazards. These will diminish
towards sunset after 6-7PM. Winds outside of storm activity will
remain 10 to 20 mph with minimum relative humidity values above
the 20 to 30 percent mark. Similar conditions Sunday with a
warming trend and dry conditions for much of next week.
...Cody dispatch area (includes fire weather zones 275...276...
282...283...285...286...287...288...and 289)...
Scattered thunderstorms expected once again this afternoon with
the best chances between 3 to 7PM. Frequent lightning and gusty
outflow winds over 40 mph the main hazards. These will diminish
towards sunset after 7-8PM. Winds outside of storm activity will
remain 15 to 20 mph with minimum relative humidity values above
the 20 to 25 percent mark. Similar conditions Sunday with a
warming trend and dry conditions for much of next week.
...Casper dispatch area (includes fire weather zones 277...278...
279...280...281...285...289...and 300)...
Scattered thunderstorms expected once again this afternoon with
the best chances between 4 to 8PM. Frequent lightning and gusty
outflow winds over 40 mph the main hazards. These will diminish
towards sunset after 8-9PM. Winds outside of storm activity will
remain 15 to 25 mph with minimum relative humidity values above
the 15 percent mark. Similar conditions Sunday with a warming
trend and dry conditions for much of next week.
...Thunderstorms imply strong gusty and erratic winds...
WYZ280-170945-
Natrona County/Casper BLM-
Including the cities of Casper and Midwest
145 AM MDT Sat Aug 16 2025
.TODAY...
Sky/weather.........Mostly cloudy then becoming partly cloudy.
Isolated showers late in the morning. Isolated
thunderstorms in the afternoon. Chance of
precipitation 20 percent.
Chance of thunder...20 percent.
Max temperature.....80-85.
24 hr trend......6 degrees cooler.
Min humidity........23-29 percent.
24 hr trend......7 percent wetter.
20-foot winds.......Southwest winds around 15 mph until 1500, then
west. Gusts up to 25 mph.
Ridge top winds.....West 15 to 20 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest around 20 mph.
Mixing Height.......2200-4200 ft agl until 1200, then 7800-9800 ft
agl.
Smoke dispersal.....Fair to good until 1200, then very good.
.TONIGHT...
Sky/weather.........Partly cloudy. Isolated showers and
thunderstorms early in the evening. Areas of
smoke late in the evening. Chance of
precipitation 20 percent.
Chance of thunder...20 percent.
Min temperature.....57-62.
24 hr trend......5 degrees cooler.
Max humidity........54-60 percent.
24 hr trend......1 percent wetter.
Humidity recovery...Moderate.
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 15 mph until 2400, then
southwest.
Chc of wetting rain.Zero percent.
Transport winds.....Northwest around 15 mph until 2400, then
southwest.
Mixing Height.......3600-5600 ft agl until 2400, then 400-600 ft
agl.
Smoke dispersal.....Fair to good until 2400, then poor.
.SUNDAY...
Sky/weather.........Partly cloudy then becoming mostly sunny. Areas
of smoke early in the morning. Slight chance of
showers and thunderstorms in the afternoon.
Chance of precipitation 20 percent.
Chance of thunder...10 percent.
Max temperature.....85-90.
24 hr trend......5 degrees warmer.
Min humidity........16-22 percent.
24 hr trend......6 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.....West around 15 mph.
Mixing Height.......2800-4800 ft agl until 1200, then 9400-11400 ft
agl.
Smoke dispersal.....Poor to fair until 1200, then very good.
.Forecast days 3 through 7......
.SUNDAY NIGHT...Mostly clear. Lows in the mid 50s. Winds
generally less than 10 mph.
.MONDAY...Mostly clear. Lows in the mid 50s. Highs in the upper
80s. Winds generally less than 10 mph.
.TUESDAY...Clear. Lows in the upper 50s. Highs in the lower 90s.
Winds generally less than 10 mph.
.WEDNESDAY...Mostly clear. Lows in the upper 50s. Highs in the
mid 90s. Southwest winds around 10 mph.
.THURSDAY...Mostly clear. Slight chance of showers and
thunderstorms. Lows in the upper 50s. Highs in the upper 80s.
.FRIDAY...Mostly sunny. Chance of showers and thunderstorms in
the afternoon. Highs in the lower 80s.
$$
WYZ283-170945-
Upper Wind River Basin/Wind River Basin-
Including the cities of Crowheart, Lander, Riverton, and Shoshoni
145 AM MDT Sat Aug 16 2025
.TODAY...
Sky/weather.........Mostly cloudy. Isolated showers through the
day. Isolated dry thunderstorms in the
afternoon. Chance of precipitation 20 percent.
Chance of thunder...20 percent.
Max temperature.....76-81.
24 hr trend......6 degrees cooler.
Min humidity........25-31 percent.
24 hr trend......7 percent wetter.
20-foot winds.......West winds around 10 mph and gusty.
Ridge top winds.....West around 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West around 15 mph.
Mixing Height.......2400-4400 ft agl until 1200, then 6600-8600 ft
agl.
Smoke dispersal.....Poor to fair until 1200, then good to very
good.
.TONIGHT...
Sky/weather.........Partly cloudy. Isolated thunderstorms early in
the evening. Isolated showers early in the
evening. Areas of smoke late in the evening.
Chance of precipitation 20 percent.
Chance of thunder...20 percent.
Min temperature.....52-57.
24 hr trend......5 degrees cooler.
Max humidity........54-60 percent.
24 hr trend......6 percent wetter.
Humidity recovery...Moderate.
20-foot winds.......West winds around 10 mph with gusts to around
15 mph.
Ridge top winds.....West around 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West around 15 mph.
Mixing Height.......2000-4000 ft agl until 2400, then 400-800 ft
agl.
Smoke dispersal.....Poor.
.SUNDAY...
Sky/weather.........Partly cloudy. Areas of smoke early in the
morning. Slight chance of showers and
thunderstorms in the afternoon. Chance of
precipitation 20 percent.
Chance of thunder...10 percent.
Max temperature.....81-86.
24 hr trend......5 degrees warmer.
Min humidity........19-25 percent.
24 hr trend......6 percent drier.
20-foot winds.......Southwest winds around 10 mph until 0900, then
upslope/upvalley 5-9 mph until 1200, then
southwest around 10 mph. Gusts up to 20 mph.
Ridge top winds.....Southwest 10 to 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest 10 to 15 mph.
Mixing Height.......2000-4000 ft agl until 1200, then 7600-9600 ft
agl.
Smoke dispersal.....Poor until 1200, then good to very good.
.Forecast days 3 through 7......
.SUNDAY NIGHT...Mostly clear. Lows in the mid 50s. West winds
around 10 mph.
.MONDAY...Clear. Lows in the mid 50s. Highs in the upper 80s.
Winds generally less than 10 mph.
.TUESDAY...Clear. Lows in the upper 50s. Highs in the lower 90s.
Winds generally less than 10 mph.
.WEDNESDAY...Mostly clear. Lows in the upper 50s. Highs in the
lower 90s. West winds around 10 mph.
.THURSDAY...Mostly clear. Slight chance of showers and
thunderstorms. Lows in the upper 50s. Highs around 90.
.FRIDAY...Mostly sunny. Chance of showers and slight chance of
thunderstorms in the afternoon. Highs in the mid 80s.
$$
WYZ285-170945-
South Bighorn Mountains-
145 AM MDT Sat Aug 16 2025
.TODAY...
Sky/weather.........Mostly cloudy. Isolated showers and
thunderstorms in the morning, then scattered
showers and thunderstorms in the afternoon.
Chance of precipitation 40 percent.
Chance of thunder...30 percent.
Max temperature.....73-78.
24 hr trend......7 degrees cooler.
Min humidity........27-33 percent.
24 hr trend......11 percent wetter.
20-foot winds.......Southwest winds 10 to 15 mph with gusts to
around 25 mph until 1200, then northwest and
gusty.
Ridge top winds.....Southwest around 15 mph until 1200, then
northwest.
Chc of wetting rain.Zero percent.
Transport winds.....West around 15 mph.
Mixing Height.......1600-3600 ft agl until 1200, then 6200-8200 ft
agl.
Smoke dispersal.....Poor to fair until 1200, then good.
.TONIGHT...
Sky/weather.........Partly cloudy. Isolated showers and
thunderstorms early in the evening. Areas of
smoke late in the evening. Chance of
precipitation 20 percent.
Chance of thunder...20 percent.
Min temperature.....55-60.
24 hr trend......4 degrees cooler.
Max humidity........51-57 percent.
24 hr trend......Unchanged.
Humidity recovery...Moderate.
20-foot winds.......Northwest winds around 10 mph until 2400, then
southwest. Gusts up to 15 mph.
Ridge top winds.....Northwest around 15 mph until 2400, then
southwest.
Chc of wetting rain.Zero percent.
Transport winds.....West around 15 mph.
Mixing Height.......2600-4600 ft agl until 2400, then 200-600 ft
agl.
Smoke dispersal.....Poor to fair until 2400, then poor.
.SUNDAY...
Sky/weather.........Partly cloudy. Areas of smoke early in the
morning. Slight chance of showers and
thunderstorms in the afternoon. Chance of
precipitation 20 percent.
Chance of thunder...10 percent.
Max temperature.....78-83.
24 hr trend......5 degrees warmer.
Min humidity........20-26 percent.
24 hr trend......7 percent drier.
20-foot winds.......Southwest winds around 10 mph and gusty.
Ridge top winds.....Southwest around 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West around 15 mph.
Mixing Height.......2200-4200 ft agl until 1200, then 7400-9400 ft
agl.
Smoke dispersal.....Poor to fair until 1200, then good to very
good.
.Forecast days 3 through 7......
.SUNDAY NIGHT...Partly cloudy. Slight chance of showers and
thunderstorms in the evening. Lows in the mid 50s. North winds
around 10 mph.
.MONDAY...Clear. Lows in the upper 50s. Highs in the lower 80s.
West winds around 10 mph.
.TUESDAY...Clear. Lows around 60. Highs in the mid 80s. South
winds around 10 mph.
.WEDNESDAY...Mostly clear. Lows around 60. Highs in the upper
80s. West winds around 10 mph.
.THURSDAY...Mostly clear. Slight chance of showers and
thunderstorms. Lows in the mid 50s. Highs in the lower 80s.
.FRIDAY...Mostly sunny. Chance of showers and slight chance of
thunderstorms in the afternoon. Highs in the mid 70s.
$$
WYZ281-170945-
Johnson County/Casper BLM-
Including the cities of Buffalo and Kaycee
145 AM MDT Sat Aug 16 2025
.TODAY...
Sky/weather.........Mostly cloudy. Isolated showers in the morning,
then scattered showers and thunderstorms in the
afternoon. Chance of precipitation 40 percent.
Chance of thunder...30 percent.
Max temperature.....77-82.
24 hr trend......6 degrees cooler.
Min humidity........29-35 percent.
24 hr trend......10 percent wetter.
20-foot winds.......Southwest winds around 10 mph until 1200, then
northwest. Gusts up to 15 mph.
Ridge top winds.....Southwest around 15 mph until 1200, then
northwest.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest around 15 mph until 1200, then
northwest.
Mixing Height.......1800-3800 ft agl until 1200, then 6200-8200 ft
agl.
Smoke dispersal.....Poor to fair until 1200, then good to very
good.
.TONIGHT...
Sky/weather.........Partly cloudy. Isolated thunderstorms early in
the evening. Isolated showers early in the
evening. Areas of smoke late in the evening.
Chance of precipitation 20 percent.
Chance of thunder...20 percent.
Min temperature.....58-63.
24 hr trend......4 degrees cooler.
Max humidity........58-64 percent.
24 hr trend......2 percent wetter.
Humidity recovery...Good.
20-foot winds.......North winds around 10 mph until 2100, then
downslope/downvalley 4-7 mph. Gusts up to 15
mph.
Ridge top winds.....Northeast around 10 mph until 2400, then
southwest.
Chc of wetting rain.Zero percent.
Transport winds.....Northwest around 10 mph until 2400, then
southwest.
Mixing Height.......2000-4000 ft agl until 2400, then 400-600 ft
agl.
Smoke dispersal.....Poor.
.SUNDAY...
Sky/weather.........Partly cloudy. Areas of smoke early in the
morning. Slight chance of showers and
thunderstorms in the afternoon. Chance of
precipitation 20 percent.
Chance of thunder...10 percent.
Max temperature.....81-86.
24 hr trend......5 degrees warmer.
Min humidity........24-30 percent.
24 hr trend......6 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph. Gusts up to 15 mph.
Ridge top winds.....West around 10 mph until 1200, then northwest.
Chc of wetting rain.Zero percent.
Transport winds.....West around 10 mph.
Mixing Height.......1800-3800 ft agl until 1200, then 7400-9400 ft
agl.
Smoke dispersal.....Poor until 1200, then good.
.Forecast days 3 through 7......
.SUNDAY NIGHT...Partly cloudy. Slight chance of showers and
thunderstorms in the evening. Lows in the upper 50s. Winds
generally less than 10 mph.
.MONDAY...Mostly clear. Lows in the upper 50s. Highs around 90.
Winds generally less than 10 mph.
.TUESDAY...Clear. Lows in the lower 60s. Highs in the lower 90s.
Winds generally less than 10 mph.
.WEDNESDAY...Mostly clear. Lows in the lower 60s. Highs in the
upper 90s. Southwest winds around 10 mph.
.THURSDAY...Mostly clear. Slight chance of showers and
thunderstorms. Lows in the upper 50s. Highs in the upper 80s.
.FRIDAY...Partly cloudy. Slight chance of showers and
thunderstorms in the morning, then chance of showers and
thunderstorms in the afternoon. Highs in the lower 80s.
$$
WYZ282-170945-
South Bighorn Basin/Worland BLM-
Including the cities of Ten Sleep, Thermopolis, and Worland
145 AM MDT Sat Aug 16 2025
.TODAY...
Sky/weather.........Mostly cloudy then becoming partly cloudy.
Isolated showers in the late morning and
afternoon. Isolated thunderstorms in the
afternoon. Chance of precipitation 20 percent.
Chance of thunder...20 percent.
Max temperature.....75-80.
24 hr trend......7 degrees cooler.
Min humidity........23-29 percent.
24 hr trend......8 percent wetter.
20-foot winds.......South winds around 10 mph until 0900, then
upslope/upvalley 5-9 mph until 1500, then
northwest around 10 mph. Gusts up to 15 mph.
Ridge top winds.....Southwest around 10 mph until 1200, then
northwest.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest around 10 mph until 1200, then
northwest.
Mixing Height.......1600-3600 ft agl until 1200, then 6800-8800 ft
agl.
Smoke dispersal.....Poor until 1200, then good.
.TONIGHT...
Sky/weather.........Partly cloudy. Isolated showers and
thunderstorms early in the evening. Areas of
smoke late in the evening. Chance of
precipitation 20 percent.
Chance of thunder...10 percent.
Min temperature.....56-61.
24 hr trend......6 degrees cooler.
Max humidity........53-59 percent.
24 hr trend......8 percent wetter.
Humidity recovery...Moderate.
20-foot winds.......Northwest winds around 10 mph until 2100, then
downslope/downvalley 4-7 mph. Gusts up to 15
mph.
Ridge top winds.....West around 15 mph until 2400, then south.
Chc of wetting rain.Zero percent.
Transport winds.....West around 15 mph until 2400, then south.
Mixing Height.......3000-5000 ft agl until 2400, then 400-800 ft
agl.
Smoke dispersal.....Fair to good until 2400, then poor.
.SUNDAY...
Sky/weather.........Partly cloudy. Areas of smoke early in the
morning. Slight chance of showers and
thunderstorms in the afternoon. Chance of
precipitation 20 percent.
Chance of thunder...10 percent.
Max temperature.....81-86.
24 hr trend......6 degrees warmer.
Min humidity........17-23 percent.
24 hr trend......6 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph until 1500, then west
around 10 mph. Gusts up to 15 mph.
Ridge top winds.....Southwest around 10 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest around 10 mph.
Mixing Height.......1400-3400 ft agl until 1200, then 7200-9200 ft
agl.
Smoke dispersal.....Poor until 1200, then good.
.Forecast days 3 through 7......
.SUNDAY NIGHT...Partly cloudy. Slight chance of showers and
thunderstorms in the evening. Lows in the upper 50s. Winds
generally less than 10 mph.
.MONDAY...Mostly clear. Lows in the upper 50s. Highs in the lower
90s. Winds generally less than 10 mph.
.TUESDAY...Clear. Lows in the lower 60s. Highs in the mid 90s.
Winds generally less than 10 mph.
.WEDNESDAY...Mostly clear. Lows in the lower 60s. Highs in the
mid 90s. Winds generally less than 10 mph.
.THURSDAY...Mostly clear. Slight chance of showers and
thunderstorms. Lows in the upper 50s. Highs in the lower 90s.
.FRIDAY...Mostly sunny. Chance of showers and slight chance of
thunderstorms in the afternoon. Highs in the mid 80s.
$$
WYZ275-170945-
North Bighorn Basin/Worland BLM-
Including the cities of Greybull, Lovell, and Powell
145 AM MDT Sat Aug 16 2025
.TODAY...
Sky/weather.........Mostly cloudy. Isolated showers late in the
morning. Isolated thunderstorms in the
afternoon. Chance of precipitation 20 percent.
Chance of thunder...20 percent.
Max temperature.....75-80.
24 hr trend......7 degrees cooler.
Min humidity........23-29 percent.
24 hr trend......9 percent wetter.
20-foot winds.......South winds around 10 mph until 0900, then
upslope/upvalley 5-9 mph until 1500, then
southwest around 10 mph. Gusts up to 15 mph.
Ridge top winds.....South around 10 mph.
Chc of wetting rain.Zero percent.
Transport winds.....South around 10 mph until 1200, then west.
Mixing Height.......1200-3200 ft agl until 1200, then 6200-8200 ft
agl.
Smoke dispersal.....Poor until 1200, then good.
.TONIGHT...
Sky/weather.........Partly cloudy. Isolated showers and
thunderstorms early in the evening. Areas of
smoke late in the evening. Chance of
precipitation 20 percent.
Chance of thunder...10 percent.
Min temperature.....56-61.
24 hr trend......4 degrees cooler.
Max humidity........52-58 percent.
24 hr trend......9 percent wetter.
Humidity recovery...Moderate.
20-foot winds.......West winds around 10 mph until 2100, then
downslope/downvalley 4-7 mph. Gusts up to 15
mph.
Ridge top winds.....Southwest around 15 mph until 2400, then south.
Chc of wetting rain.Zero percent.
Transport winds.....West around 15 mph until 2400, then south.
Mixing Height.......2200-4200 ft agl until 2400, then 400-800 ft
agl.
Smoke dispersal.....Poor.
.SUNDAY...
Sky/weather.........Mostly sunny then becoming partly cloudy. Areas
of smoke early in the morning. Slight chance of
showers and thunderstorms in the afternoon.
Chance of precipitation 20 percent.
Chance of thunder...10 percent.
Max temperature.....79-84.
24 hr trend......4 degrees warmer.
Min humidity........18-24 percent.
24 hr trend......5 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph until 1500, then
southwest around 10 mph with higher gusts.
Ridge top winds.....South around 10 mph.
Chc of wetting rain.Zero percent.
Transport winds.....South 10 to 15 mph.
Mixing Height.......1400-3400 ft agl until 1200, then 7000-9000 ft
agl.
Smoke dispersal.....Poor until 1200, then good.
.Forecast days 3 through 7......
.SUNDAY NIGHT...Partly cloudy. Slight chance of showers and
thunderstorms in the evening. Lows in the upper 50s. Northwest
winds around 10 mph.
.MONDAY...Mostly clear. Lows around 60. Highs in the lower 90s.
Winds generally less than 10 mph.
.TUESDAY...Clear. Lows in the lower 60s. Highs in the mid 90s.
Winds generally less than 10 mph.
.WEDNESDAY...Mostly clear. Lows in the lower 60s. Highs in the
mid 90s. Southeast winds around 10 mph.
.THURSDAY THROUGH FRIDAY...Mostly clear with slight chance of
showers and thunderstorms. Lows in the upper 50s. Highs 84 to 89.
$$
WYZ276-170945-
Cody Foothills-
Including the cities of Clark, Cody, and Meeteetse
145 AM MDT Sat Aug 16 2025
.TODAY...
Sky/weather.........Mostly cloudy. Isolated showers early in the
morning. Isolated thunderstorms early in the
afternoon, then scattered showers and
thunderstorms in the afternoon. Chance of
precipitation 50 percent.
Chance of thunder...40 percent.
Max temperature.....77-82.
24 hr trend......7 degrees cooler.
Min humidity........24-30 percent.
24 hr trend......9 percent wetter.
20-foot winds.......Southwest winds around 10 mph until 1200, then
upslope/upvalley 5-9 mph until 1500, then
southwest around 10 mph. Gusts up to 15 mph.
Ridge top winds.....Southwest around 15 mph.
Chc of wetting rain.Less than 5 percent.
Transport winds.....West around 15 mph.
Mixing Height.......3000-5000 ft agl until 1200, then 5600-7600 ft
agl.
Smoke dispersal.....Fair to good.
.TONIGHT...
Sky/weather.........Partly cloudy. Scattered showers early in the
evening. Isolated thunderstorms early in the
evening. Isolated showers early in the evening.
Chance of precipitation 40 percent.
Chance of thunder...20 percent.
Min temperature.....56-61.
24 hr trend......4 degrees cooler.
Max humidity........49-55 percent.
24 hr trend......8 percent wetter.
Humidity recovery...Moderate.
20-foot winds.......Southwest winds around 10 mph with gusts to
around 15 mph.
Ridge top winds.....Southwest around 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West around 15 mph.
Mixing Height.......1000-3000 ft agl until 2400, then 600-1000 ft
agl.
Smoke dispersal.....Poor.
.SUNDAY...
Sky/weather.........Partly cloudy. Chance of showers and
thunderstorms in the afternoon. Chance of
precipitation 50 percent.
Chance of thunder...30 percent.
Max temperature.....79-84.
24 hr trend......3 degrees warmer.
Min humidity........27-33 percent.
24 hr trend......1 percent drier.
20-foot winds.......Southwest winds around 10 mph until 0900, then
upslope/upvalley 5-9 mph until 1500, then
southwest around 10 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.......2600-4600 ft agl until 1200, then 5800-7800 ft
agl.
Smoke dispersal.....Fair to good.
.Forecast days 3 through 7......
.SUNDAY NIGHT...Partly cloudy. Slight chance of showers and
thunderstorms in the evening. Lows in the mid 50s. West winds
around 10 mph.
.MONDAY...Mostly clear. Slight chance of showers and
thunderstorms. Lows in the upper 50s. Highs in the mid 80s. Winds
generally less than 10 mph.
.TUESDAY THROUGH WEDNESDAY...Mostly clear. Lows in the lower 60s.
Highs 88 to 93. West winds around 10 mph.
.THURSDAY...Mostly clear. Slight chance of showers and
thunderstorms. Lows in the mid 50s. Highs in the mid 80s.
.FRIDAY...Mostly sunny. Chance of showers and thunderstorms in
the afternoon. Highs in the upper 70s.
$$
WYZ287-170945-
Owl Creek Mountains-
145 AM MDT Sat Aug 16 2025
.TODAY...
Sky/weather.........Mostly cloudy. Isolated showers in the morning,
then scattered showers and dry thunderstorms in
the afternoon. Chance of precipitation 50
percent.
Chance of thunder...30 percent.
Max temperature.....73-78.
24 hr trend......8 degrees cooler.
Min humidity........23-29 percent.
24 hr trend......10 percent wetter.
20-foot winds.......West winds around 10 mph until 0900, then
upslope/upvalley 5-9 mph until 1500, then west
around 10 mph. Gusts up to 15 mph.
Ridge top winds.....West 10 to 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West around 15 mph.
Mixing Height.......2200-4200 ft agl until 1200, then 5600-7600 ft
agl.
Smoke dispersal.....Fair to good.
.TONIGHT...
Sky/weather.........Partly cloudy. Scattered showers early in the
evening. Isolated thunderstorms early in the
evening. Isolated showers early in the evening.
Chance of precipitation 40 percent.
Chance of thunder...20 percent.
Min temperature.....55-60.
24 hr trend......5 degrees cooler.
Max humidity........48-54 percent.
24 hr trend......8 percent wetter.
Humidity recovery...Moderate.
20-foot winds.......West winds around 10 mph with gusts to around
15 mph.
Ridge top winds.....West around 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West around 15 mph.
Mixing Height.......1000-3000 ft agl until 2400, then 200-600 ft
agl.
Smoke dispersal.....Poor.
.SUNDAY...
Sky/weather.........Partly cloudy. Slight chance of thunderstorms
early in the afternoon. Chance of showers in
the afternoon. Chance of thunderstorms late in
the afternoon. Chance of precipitation 50
percent.
Chance of thunder...30 percent.
Max temperature.....75-80.
24 hr trend......4 degrees warmer.
Min humidity........20-26 percent.
24 hr trend......5 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph until 1200, then
southwest around 10 mph. Gusts up to 20 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.......2200-4200 ft agl until 1200, then 6600-8600 ft
agl.
Smoke dispersal.....Poor to fair until 1200, then good to very
good.
.Forecast days 3 through 7......
.SUNDAY NIGHT...Partly cloudy. Lows in the mid 50s. Northwest
winds around 10 mph.
.MONDAY...Mostly clear. Lows in the upper 50s. Highs in the mid
80s. Southwest winds around 10 mph.
.TUESDAY...Clear. Lows around 60. Highs in the mid 80s. South
winds around 10 mph.
.WEDNESDAY...Mostly clear. Lows around 60. Highs in the upper
80s. West winds around 10 mph.
.THURSDAY...Mostly clear. Slight chance of showers and
thunderstorms. Lows in the upper 50s. Highs in the mid 80s.
.FRIDAY...Mostly sunny. Chance of showers and thunderstorms in
the afternoon. Highs in the upper 70s.
$$
WYZ286-170945-
Absaroka Mountains/North Shoshone NF-
Including the city of Pahaska
145 AM MDT Sat Aug 16 2025
.TODAY...
Sky/weather.........Mostly cloudy. Isolated showers in the morning.
Scattered showers and thunderstorms in the
afternoon. Chance of precipitation 50 percent.
Chance of thunder...40 percent.
Max temperature.....68-73.
24 hr trend......7 degrees cooler.
Min humidity........28-34 percent.
24 hr trend......13 percent wetter.
20-foot winds.......West winds around 10 mph and gusty.
Ridge top winds.....West around 15 mph.
Chc of wetting rain.Zero percent until 1200, then 25 percent.
Transport winds.....West around 15 mph.
Mixing Height.......2600-4600 ft agl until 1200, then 5200-7200 ft
agl.
Smoke dispersal.....Fair to good.
.TONIGHT...
Sky/weather.........Partly cloudy. Scattered showers and isolated
thunderstorms early in the evening, then
isolated showers late in the evening. Chance of
precipitation 40 percent.
Chance of thunder...20 percent.
Min temperature.....49-54.
24 hr trend......2 degrees cooler.
Max humidity........60-66 percent.
24 hr trend......5 percent wetter.
Humidity recovery...Good.
20-foot winds.......West winds around 10 mph and gusty.
Ridge top winds.....West around 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West around 15 mph.
Mixing Height.......600-2600 ft agl.
Smoke dispersal.....Poor.
.SUNDAY...
Sky/weather.........Partly cloudy. Showers likely and chance of
thunderstorms in the afternoon. Chance of
precipitation 60 percent.
Chance of thunder...40 percent.
Max temperature.....71-76.
24 hr trend......1 degree warmer.
Min humidity........27-33 percent.
24 hr trend......2 percent drier.
20-foot winds.......Southwest winds around 10 mph with gusts to
around 25 mph.
Ridge top winds.....Southwest around 15 mph.
Chc of wetting rain.Zero percent until 1200, then 20 percent.
Transport winds.....West around 15 mph.
Mixing Height.......2800-4800 ft agl until 1200, then 5800-7800 ft
agl.
Smoke dispersal.....Good.
.Forecast days 3 through 7......
.SUNDAY NIGHT...Partly cloudy. Slight chance of showers and
thunderstorms in the evening. Lows in the upper 40s. West winds
around 10 mph.
.MONDAY...Mostly clear. Slight chance of showers and
thunderstorms. Lows in the lower 50s. Highs in the mid 70s.
Southwest winds around 10 mph.
.TUESDAY THROUGH WEDNESDAY...Mostly clear. Lows in the lower 50s.
Highs in the upper 70s. West winds around 10 mph.
.THURSDAY...Mostly clear. Slight chance of showers and
thunderstorms. Lows in the upper 40s. Highs in the mid 70s.
.FRIDAY...Mostly sunny. Chance of showers and thunderstorms in
the afternoon. Highs in the lower 70s.
$$
WYZ140-170945-
Yellowstone National Park-
Including the cities of Lake, Mammoth, and Old Faithful
145 AM MDT Sat Aug 16 2025
.TODAY...
Sky/weather.........Partly cloudy then becoming mostly cloudy.
Isolated showers in the morning, then scattered
showers and dry thunderstorms in the afternoon.
Chance of precipitation 50 percent.
Chance of thunder...40 percent.
Max temperature.....71-76.
24 hr trend......5 degrees cooler.
Min humidity........28-34 percent.
24 hr trend......12 percent wetter.
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 10 percent.
Transport winds.....Southwest around 10 mph until 1200, then around
20 mph.
Mixing Height.......2400-4400 ft agl until 1200, then 7000-9000 ft
agl.
Smoke dispersal.....Poor to fair until 1200, then very good.
.TONIGHT...
Sky/weather.........Partly cloudy. Scattered showers and isolated
thunderstorms early in the evening, then
isolated showers late in the evening. Chance of
precipitation 40 percent.
Chance of thunder...20 percent.
Min temperature.....43-48.
24 hr trend......2 degrees cooler.
Max humidity........74-80 percent.
24 hr trend......9 percent wetter.
Humidity recovery...Excellent.
20-foot winds.......South winds around 10 mph until 2100, then
downslope/downvalley 4-7 mph. Gusts up to 15
mph.
Ridge top winds.....Southeast around 10 mph.
Chc of wetting rain.Less than 5 percent.
Transport winds.....South 10 to 15 mph.
Mixing Height.......1800-3800 ft agl until 2400, then 400-800 ft
agl.
Smoke dispersal.....Poor to fair until 2400, then poor.
.SUNDAY...
Sky/weather.........Partly cloudy. Chance of showers and
thunderstorms in the afternoon. Chance of
precipitation 50 percent.
Chance of thunder...40 percent.
Max temperature.....73-78.
24 hr trend......Unchanged.
Min humidity........32-38 percent.
24 hr trend......1 percent wetter.
20-foot winds.......Upslope/upvalley 5-9 mph until 0900, then
southwest around 10 mph. Gusts up to 25 mph.
Ridge top winds.....Southwest 10 to 15 mph.
Chc of wetting rain.Zero percent until 1200, then 10 percent.
Transport winds.....Southwest 15 to 20 mph.
Mixing Height.......2400-4400 ft agl until 1200, then 5800-7800 ft
agl.
Smoke dispersal.....Fair to good until 1200, then very good.
.Forecast days 3 through 7......
.SUNDAY NIGHT...Partly cloudy. Slight chance of showers and
thunderstorms in the evening. Lows in the mid 40s. Winds
generally less than 10 mph.
.MONDAY...Mostly clear. Slight chance of showers and
thunderstorms. Lows in the mid 40s. Highs in the mid 70s. Winds
generally less than 10 mph.
.TUESDAY THROUGH WEDNESDAY...Mostly clear. Lows in the mid 40s.
Highs in the upper 70s. Winds generally less than 10 mph.
.THURSDAY THROUGH FRIDAY...Mostly clear with slight chance of
showers and thunderstorms. Lows in the mid 40s. Highs 75 to 80.
$$
WYZ415-170945-
North Zone Bridger Teton NF and Grand Teton NP-
Including the cities of Jackson and Moran
145 AM MDT Sat Aug 16 2025
.TODAY...
Sky/weather.........Mostly cloudy. Isolated showers in the morning,
then scattered showers and dry thunderstorms in
the afternoon. Chance of precipitation 50
percent.
Chance of thunder...40 percent.
Max temperature.....71-76.
24 hr trend......7 degrees cooler.
Min humidity........29-35 percent.
24 hr trend......12 percent wetter.
20-foot winds.......Upslope/upvalley 5-9 mph until 1200, then
southwest around 10 mph. Gusts up to 15 mph.
Ridge top winds.....South 10 to 15 mph.
Chc of wetting rain.Zero percent until 1200, then 15 percent.
Transport winds.....Southwest 10 to 15 mph.
Mixing Height.......2200-4200 ft agl until 1200, then 6200-8200 ft
agl.
Smoke dispersal.....Poor to fair until 1200, then good to very
good.
.TONIGHT...
Sky/weather.........Partly cloudy. Scattered showers and isolated
thunderstorms early in the evening, then
isolated showers late in the evening. Chance of
precipitation 40 percent.
Chance of thunder...20 percent.
Min temperature.....45-50.
24 hr trend......3 degrees cooler.
Max humidity........72-78 percent.
24 hr trend......8 percent wetter.
Humidity recovery...Excellent.
20-foot winds.......South winds around 10 mph until 2100, then
downslope/downvalley 4-7 mph. Gusts up to 15
mph.
Ridge top winds.....Southeast around 10 mph.
Chc of wetting rain.Zero percent.
Transport winds.....South around 10 mph.
Mixing Height.......1200-3200 ft agl until 2400, then 400-1000 ft
agl.
Smoke dispersal.....Poor.
.SUNDAY...
Sky/weather.........Partly cloudy. Chance of showers and
thunderstorms in the afternoon. Chance of
precipitation 50 percent.
Chance of thunder...30 percent.
Max temperature.....70-75.
24 hr trend......2 degrees warmer.
Min humidity........35-41 percent.
24 hr trend......Unchanged.
20-foot winds.......Upslope/upvalley 5-9 mph until 1200, then
southwest around 10 mph. Gusts up to 20 mph.
Ridge top winds.....South around 10 mph until 1200, then southwest.
Chc of wetting rain.Zero percent until 1200, then 10 percent.
Transport winds.....Southwest 10 to 15 mph.
Mixing Height.......2400-4400 ft agl until 1200, then 5400-7400 ft
agl.
Smoke dispersal.....Fair to good.
.Forecast days 3 through 7......
.SUNDAY NIGHT...Mostly clear. Slight chance of showers and
thunderstorms in the evening. Lows in the mid 40s. Winds
generally less than 10 mph.
.MONDAY THROUGH WEDNESDAY...Mostly clear. Lows 46 to 51. Highs
75 to 80. Winds generally less than 10 mph.
.THURSDAY...Mostly clear. Slight chance of showers and
thunderstorms. Lows in the upper 40s. Highs in the upper 70s.
.FRIDAY...Mostly sunny. Chance of showers and slight chance of
thunderstorms in the afternoon. Highs in the upper 70s.
$$
WYZ416-170945-
West Wind River Mountains/East Zone Bridger Teton NF-
145 AM MDT Sat Aug 16 2025
.TODAY...
Sky/weather.........Mostly cloudy. Scattered showers in the
morning, then numerous showers and scattered
dry thunderstorms in the afternoon. Chance of
precipitation 70 percent.
Chance of thunder...40 percent.
Max temperature.....67-72.
24 hr trend......5 degrees cooler.
Min humidity........29-35 percent.
24 hr trend......7 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.....Southwest 10 to 15 mph.
Chc of wetting rain.Zero percent until 1200, then 15 percent.
Transport winds.....Southwest 10 to 15 mph.
Mixing Height.......1800-3800 ft agl until 1200, then 5400-7400 ft
agl.
Smoke dispersal.....Poor to fair until 1200, then good.
.TONIGHT...
Sky/weather.........Partly cloudy. Scattered showers early in the
evening. Isolated thunderstorms early in the
evening. Isolated showers in the evening.
Chance of precipitation 40 percent.
Chance of thunder...20 percent.
Min temperature.....44-49.
24 hr trend......Unchanged.
Max humidity........68-74 percent.
24 hr trend......9 percent drier.
Humidity recovery...Good.
20-foot winds.......West winds around 10 mph and gusty until 2100,
then downslope/downvalley 4-7 mph.
Ridge top winds.....Northwest around 15 mph until 2400, then east.
Chc of wetting rain.Zero percent.
Transport winds.....Northwest around 15 mph until 2400, then south.
Mixing Height.......1200-3200 ft agl until 2400, then 400-800 ft
agl.
Smoke dispersal.....Poor.
.SUNDAY...
Sky/weather.........Partly cloudy. Chance of showers and
thunderstorms in the afternoon. Chance of
precipitation 50 percent.
Chance of thunder...40 percent.
Max temperature.....66-71.
24 hr trend......1 degree warmer.
Min humidity........32-38 percent.
24 hr trend......1 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph until 1200, then
southwest around 10 mph. Gusts up to 25 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.......2400-4400 ft agl until 1200, then 5800-7800 ft
agl.
Smoke dispersal.....Fair to good.
.Forecast days 3 through 7......
.SUNDAY NIGHT...Mostly clear. Slight chance of showers and
thunderstorms in the evening. Lows in the mid 40s. Winds
generally less than 10 mph.
.MONDAY...Mostly clear. Lows in the mid 40s. Highs in the lower
70s. Winds generally less than 10 mph.
.TUESDAY...Clear. Lows in the upper 40s. Highs in the mid 70s.
Winds generally less than 10 mph.
.WEDNESDAY...Mostly clear. Lows in the upper 40s. Highs in the
mid 70s. West winds around 10 mph.
.THURSDAY...Partly cloudy. Slight chance of showers and
thunderstorms. Lows in the upper 40s. Highs in the mid 70s.
.FRIDAY...Mostly sunny. Chance of showers and slight chance of
thunderstorms in the afternoon. Highs in the lower 70s.
$$
WYZ288-170945-
East Wind River Mountains/South Shoshone NF-
Including the cities of Dubois and South Pass
145 AM MDT Sat Aug 16 2025
.TODAY...
Sky/weather.........Mostly cloudy. Scattered showers through the
day. Scattered dry thunderstorms in the
afternoon. Chance of precipitation 50 percent.
Chance of thunder...40 percent.
Max temperature.....68-73.
24 hr trend......7 degrees cooler.
Min humidity........28-34 percent.
24 hr trend......9 percent wetter.
20-foot winds.......West winds around 10 mph with higher gusts.
Ridge top winds.....West around 15 mph.
Chc of wetting rain.Zero percent until 1200, then 20 percent.
Transport winds.....West around 15 mph.
Mixing Height.......2800-4800 ft agl until 1200, then 5000-7000 ft
agl.
Smoke dispersal.....Fair to good.
.TONIGHT...
Sky/weather.........Partly cloudy. Scattered showers early in the
evening. Isolated thunderstorms early in the
evening. Isolated showers early in the evening.
Areas of smoke late in the evening. Chance of
precipitation 40 percent.
Chance of thunder...20 percent.
Min temperature.....48-53.
24 hr trend......1 degree cooler.
Max humidity........54-60 percent.
24 hr trend......7 percent drier.
Humidity recovery...Moderate.
20-foot winds.......West winds around 10 mph and gusty.
Ridge top winds.....West around 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West around 15 mph.
Mixing Height.......1400-3400 ft agl until 2400, then 400-800 ft
agl.
Smoke dispersal.....Poor.
.SUNDAY...
Sky/weather.........Partly cloudy. Areas of smoke early in the
morning. Slight chance of thunderstorms early
in the afternoon. Chance of showers in the
afternoon. Chance of thunderstorms late in the
afternoon. Chance of precipitation 50 percent.
Chance of thunder...30 percent.
Max temperature.....70-75.
24 hr trend......2 degrees warmer.
Min humidity........28-34 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.Less than 5 percent.
Transport winds.....West 15 to 20 mph.
Mixing Height.......2600-4600 ft agl until 1200, then 6800-8800 ft
agl.
Smoke dispersal.....Poor to fair until 1200, then very good.
.Forecast days 3 through 7......
.SUNDAY NIGHT...Mostly clear. Slight chance of showers and
thunderstorms in the evening. Lows around 50. Winds generally
less than 10 mph.
.MONDAY...Mostly clear. Lows in the lower 50s. Highs in the mid
70s. Southwest winds around 10 mph.
.TUESDAY...Clear. Lows in the mid 50s. Highs in the upper 70s.
Southwest winds around 10 mph.
.WEDNESDAY...Mostly clear. Lows in the mid 50s. Highs in the
upper 70s. West winds around 10 mph.
.THURSDAY...Partly cloudy. Slight chance of showers and
thunderstorms. Lows in the lower 50s. Highs in the upper 70s.
.FRIDAY...Mostly sunny. Chance of showers and slight chance of
thunderstorms in the afternoon. Highs in the mid 70s.
$$
WYZ414-170945-
Salt and Wyoming Ranges/West Zone Bridger Teton NF-
Including the city of Afton
145 AM MDT Sat Aug 16 2025
.TODAY...
Sky/weather.........Partly cloudy. Isolated showers in the morning,
then scattered showers and dry thunderstorms in
the afternoon. Chance of precipitation 50
percent.
Chance of thunder...40 percent.
Max temperature.....72-77.
24 hr trend......5 degrees cooler.
Min humidity........25-31 percent.
24 hr trend......3 percent wetter.
20-foot winds.......Upslope/upvalley 5-9 mph until 0900, then
southwest around 10 mph. Gusts up to 15 mph.
Ridge top winds.....South around 10 mph until 1200, then southwest.
Chc of wetting rain.Less than 5 percent.
Transport winds.....Southwest around 15 mph.
Mixing Height.......2200-4200 ft agl until 1200, then 8000-10000 ft
agl.
Smoke dispersal.....Poor to fair until 1200, then very good.
.TONIGHT...
Sky/weather.........Partly cloudy. Scattered showers early in the
evening. Isolated thunderstorms early in the
evening. Isolated showers in the evening.
Chance of precipitation 30 percent.
Chance of thunder...10 percent.
Min temperature.....44-49.
24 hr trend......Unchanged.
Max humidity........71-77 percent.
24 hr trend......6 percent drier.
Humidity recovery...Excellent.
20-foot winds.......Southwest winds around 10 mph until 2100, then
downslope/downvalley 4-7 mph. Gusts up to 15
mph.
Ridge top winds.....South around 10 mph.
Chc of wetting rain.Zero percent.
Transport winds.....South around 10 mph.
Mixing Height.......3000-5000 ft agl until 2400, then 400-1000 ft
agl.
Smoke dispersal.....Fair to good until 2400, then poor.
.SUNDAY...
Sky/weather.........Partly cloudy. Chance of showers and
thunderstorms in the afternoon. Chance of
precipitation 50 percent.
Chance of thunder...30 percent.
Max temperature.....71-76.
24 hr trend......1 degree warmer.
Min humidity........27-33 percent.
24 hr trend......2 percent wetter.
20-foot winds.......Upslope/upvalley 5-9 mph until 1200, then
southwest around 10 mph. Gusts up to 20 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.......3000-5000 ft agl until 1200, then 7000-9000 ft
agl.
Smoke dispersal.....Poor to fair until 1200, then good to very
good.
.Forecast days 3 through 7......
.SUNDAY NIGHT...Mostly clear. Slight chance of showers and
thunderstorms in the evening. Lows in the upper 40s. Winds
generally less than 10 mph.
.MONDAY THROUGH TUESDAY...Clear. Lows 48 to 53. Highs 77 to 82.
Winds generally less than 10 mph.
.WEDNESDAY...Mostly clear. Lows in the lower 50s. Highs in the
lower 80s. Winds generally less than 10 mph.
.THURSDAY...Mostly clear. Slight chance of showers and
thunderstorms. Lows in the lower 50s. Highs around 80.
.FRIDAY...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 70s.
$$
WYZ277>279-170945-
Lincoln and Uinta Counties/Lower Elevations-
Upper Green River Basin/Rock Springs BLM-
Sweetwater County/Rock Springs BLM/Flaming Gorge NRA-
Including the cities of Evanston, Fort Bridger, Kemmerer,
Big Piney, Farson, Pinedale, Green River, Rock Springs,
and Wamsutter
145 AM MDT Sat Aug 16 2025
.TODAY...
Sky/weather.........Partly cloudy. Isolated showers in the late
morning and afternoon. Isolated thunderstorms
early in the afternoon, then isolated dry
thunderstorms late in the afternoon. Chance of
precipitation 20 percent.
Chance of thunder...20 percent.
Max temperature.....71-76.
24 hr trend......3 degrees cooler.
Min humidity........23-29 percent.
24 hr trend......1 percent wetter.
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.
Transport winds.....Southwest 10 to 15 mph.
Mixing Height.......2000-4000 ft agl until 1200, then 8200-10200 ft
agl.
Smoke dispersal.....Poor to fair until 1200, then very good.
.TONIGHT...
Sky/weather.........Partly cloudy. Isolated thunderstorms early in
the evening. Isolated showers in the evening.
Chance of precipitation 20 percent.
Chance of thunder...10 percent.
Min temperature.....46-51.
24 hr trend......3 degrees cooler.
Max humidity........70-76 percent.
24 hr trend......3 percent drier.
Humidity recovery...Excellent.
20-foot winds.......Southwest winds around 10 mph until 2100, then
downslope/downvalley 4-7 mph. Gusts up to 15
mph.
Ridge top winds.....Southwest 10 to 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest 10 to 15 mph.
Mixing Height.......2200-4200 ft agl until 2400, then 400-600 ft
agl.
Smoke dispersal.....Poor to fair until 2400, then poor.
.SUNDAY...
Sky/weather.........Partly cloudy. Slight chance of showers and
thunderstorms in the afternoon. Chance of
precipitation 20 percent.
Chance of thunder...20 percent.
Max temperature.....73-78.
24 hr trend......3 degrees warmer.
Min humidity........25-31 percent.
24 hr trend......3 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph until 1200, then
southwest around 10 mph. Gusts up to 20 mph.
Ridge top winds.....Southwest 10 to 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest 10 to 15 mph.
Mixing Height.......2600-4600 ft agl until 1200, then 9000-11000 ft
agl.
Smoke dispersal.....Poor to fair until 1200, then very good.
.Forecast days 3 through 7......
.SUNDAY NIGHT...Mostly clear. Lows in the upper 40s. Winds
generally less than 10 mph.
.MONDAY THROUGH TUESDAY...Clear. Lows 48 to 53. Highs 82 to 87.
Winds generally less than 10 mph.
.WEDNESDAY...Mostly clear. Lows in the mid 50s. Highs in the
upper 80s. Winds generally less than 10 mph.
.THURSDAY...Partly cloudy. Slight chance of showers and
thunderstorms. Lows in the lower 50s. Highs in the upper 80s.
.FRIDAY...Mostly sunny. Chance of showers and slight chance of
thunderstorms in the afternoon. Highs in the mid 80s.
$$
WYZ289-170945-
Granite/Green/Ferris/Rattlesnake Mountains-
Including the city of Jeffrey City
145 AM MDT Sat Aug 16 2025
.TODAY...
Sky/weather.........Mostly cloudy then becoming partly cloudy.
Isolated showers late in the morning. Isolated
thunderstorms in the afternoon. Chance of
precipitation 20 percent.
Chance of thunder...20 percent.
Max temperature.....74-79.
24 hr trend......3 degrees cooler.
Min humidity........20-26 percent.
24 hr trend......1 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.Zero percent.
Transport winds.....West around 20 mph.
Mixing Height.......2200-4200 ft agl until 1200, then 7800-9800 ft
agl.
Smoke dispersal.....Fair to good until 1200, then very good.
.TONIGHT...
Sky/weather.........Partly cloudy. Isolated thunderstorms early in
the evening. Isolated showers early in the
evening. Areas of smoke late in the evening.
Chance of precipitation 20 percent.
Chance of thunder...10 percent.
Min temperature.....53-58.
24 hr trend......3 degrees cooler.
Max humidity........55-61 percent.
24 hr trend......1 percent drier.
Humidity recovery...Moderate.
20-foot winds.......West winds around 10 mph until 2100, then
downslope/downvalley 4-7 mph. Gusts up to 20
mph.
Ridge top winds.....West 10 to 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West 10 to 15 mph.
Mixing Height.......3000-5000 ft agl until 2400, then 400-600 ft
agl.
Smoke dispersal.....Fair to good until 2400, then poor.
.SUNDAY...
Sky/weather.........Partly cloudy. Areas of smoke early in the
morning. Slight chance of showers and
thunderstorms in the afternoon. Chance of
precipitation 20 percent.
Chance of thunder...10 percent.
Max temperature.....79-84.
24 hr trend......3 degrees warmer.
Min humidity........16-22 percent.
24 hr trend......4 percent drier.
20-foot winds.......Southwest winds around 10 mph with gusts to
around 25 mph.
Ridge top winds.....Southwest around 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West around 15 mph.
Mixing Height.......2600-4600 ft agl until 1200, then 9400-11400 ft
agl.
Smoke dispersal.....Poor to fair until 1200, then very good to
excellent.
.Forecast days 3 through 7......
.SUNDAY NIGHT...Mostly clear. Lows in the mid 50s. Winds
generally less than 10 mph.
.MONDAY...Mostly clear. Lows in the mid 50s. Highs in the mid
80s. Winds generally less than 10 mph.
.TUESDAY...Clear. Lows in the mid 50s. Highs in the upper 80s.
Winds generally less than 10 mph.
.WEDNESDAY...Mostly clear. Lows in the upper 50s. Highs in the
upper 80s. Winds generally less than 10 mph.
.THURSDAY...Mostly clear. Slight chance of showers and
thunderstorms. Lows in the mid 50s. Highs in the upper 80s.
.FRIDAY...Mostly sunny. Chance of showers and slight chance of
thunderstorms in the afternoon. Highs in the lower 80s.
$$
WYZ300-170945-
Casper Mountain-
145 AM MDT Sat Aug 16 2025
.TODAY...
Sky/weather.........Partly cloudy. Isolated showers and
thunderstorms in the afternoon. Chance of
precipitation 20 percent.
Chance of thunder...20 percent.
Max temperature.....74-79.
24 hr trend......4 degrees cooler.
Min humidity........28-34 percent.
24 hr trend......6 percent wetter.
20-foot winds.......Southwest winds 10 to 15 mph with higher gusts.
Ridge top winds.....Southwest 15 to 20 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest around 20 mph.
Mixing Height.......1800-3800 ft agl until 1200, then 7000-9000 ft
agl.
Smoke dispersal.....Fair to good until 1200, then very good to
excellent.
.TONIGHT...
Sky/weather.........Partly cloudy. Isolated thunderstorms early in
the evening. Isolated showers early in the
evening. Areas of smoke late in the evening.
Chance of precipitation 20 percent.
Chance of thunder...20 percent.
Min temperature.....55-60.
24 hr trend......3 degrees cooler.
Max humidity........51-57 percent.
24 hr trend......2 percent drier.
Humidity recovery...Moderate.
20-foot winds.......West winds around 10 mph until 2100, then
downslope/downvalley 4-7 mph. Gusts up to 15
mph.
Ridge top winds.....Southwest around 10 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West 10 to 15 mph.
Mixing Height.......3400-5400 ft agl until 2400, then 200-600 ft
agl.
Smoke dispersal.....Fair to good until 2400, then poor.
.SUNDAY...
Sky/weather.........Mostly sunny. Areas of smoke early in the
morning. Slight chance of showers and
thunderstorms in the afternoon. Chance of
precipitation 20 percent.
Chance of thunder...10 percent.
Max temperature.....79-84.
24 hr trend......5 degrees warmer.
Min humidity........20-26 percent.
24 hr trend......6 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.......2600-4600 ft agl until 1200, then 9600-11600 ft
agl.
Smoke dispersal.....Poor to fair until 1200, then very good.
.Forecast days 3 through 7......
.SUNDAY NIGHT...Mostly clear. Lows in the mid 50s. Winds
generally less than 10 mph.
.MONDAY...Mostly clear. Lows in the mid 50s. Highs in the lower
80s. Winds generally less than 10 mph.
.TUESDAY...Clear. Lows in the upper 50s. Highs in the mid 80s.
Southeast winds around 10 mph.
.WEDNESDAY...Mostly clear. Lows in the upper 50s. Highs in the
upper 80s. South winds around 10 mph.
.THURSDAY...Mostly clear. Slight chance of showers and
thunderstorms. Lows in the mid 50s. Highs in the mid 80s.
.FRIDAY...Partly cloudy. Chance of showers and thunderstorms in
the afternoon. Highs in the upper 70s.
$$