Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS Riverton, WY
Issued by NWS Riverton, WY
880
FNUS55 KRIW 171144
FWFRIW
Fire Weather Planning Forecast for Western and Central Wyoming
National Weather Service Riverton WY
544 AM MDT Thu Jul 17 2025
.DISCUSSION...
...Yellowstone NP and Teton dispatch areas (includes fire weather
zones 140...414...415...and 416)...
Warmer and drier today with widespread minimum relative humidity
values in the teens. Breezy westerly winds are forecast with gusts
generally between 15-25mph, especially in the mountains, this
afternoon and evening. No precipitation chances today. Overnight
relative humidity recovery will be poor tonight for zones 414, 415,
and 416 and good for zone 140. Warm with slightly higher humidity
forecast Friday with afternoon isolated shower and thunderstorm
chances.
...Cody dispatch area (includes fire weather zones 275...276...
282...283...285...286...287...288...and 289)...
***RED FLAG WARNING IN EFFECT FROM NOON TODAY TO 8 PM MDT THIS
EVENING FOR ZONES 283 AND 288***
Much warmer, drier, and unstable conditions across the entire
dispatch area today will create elevated to critical fire weather
conditions. Where widespread minimum relative humidity values below
15% and gusty winds above 25mph are forecast (zones 283 and 288), a
Red Flag Warning has been issued between 1200L-2000L. Winds increase
and become westerly through the day today. No precipitation chances
today. Overnight relative humidity recovery is expected to be poor
across zones 286 and 288 and fair across all other zones except the
Bighorn Basin, where recovery will be good.
...Casper dispatch area (includes fire weather zones 277...278...
279...280...281...285...289...and 300)...
***RED FLAG WARNING IN EFFECT FROM NOON TODAY TO 8 PM MDT THIS
EVENING FOR ZONES 277, 278, 279, 280, and 289***
Warmer and drier conditions, especially for zones east of the
Divide, are expected today. Minimum relative humidity values in the
teens combined with gusty westerly winds will create elevated to
critical fire weather conditions between 1200L-2000L today, thus a
Red Flag Warning has been issued for Zones 277, 278, 279, 280, and
289. Isolated mostly virga showers/dry thunderstorms capable of
gusty outflows above 40mph are forecast to develop over the Uinta
Mountains and trek east-northeast between 1200L-1900L. Relative
humidity recovery overnight is forecast to be fair to poor west of
the Divide and zone 300.
...Thunderstorms imply strong gusty and erratic winds...
WYZ280-181345-
Natrona County/Casper BLM-
Including the cities of Casper and Midwest
544 AM MDT Thu Jul 17 2025
...RED FLAG WARNING IN EFFECT FROM NOON TODAY TO 8 PM MDT THIS
EVENING...
.TODAY...
Sky/weather.........Partly cloudy then becoming mostly sunny.
Chance of thunder...0 percent.
Max temperature.....87-92.
24 hr trend......20 degrees warmer.
Min humidity........11-17 percent.
24 hr trend......38 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph until 0900, then
southwest around 10 mph with higher gusts until
1200, then west around 20 mph with gusts to
around 30 mph.
Ridge top winds.....Southwest around 15 mph until 1200, then west
around 25 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest around 15 mph until 1200, then west
around 25 mph.
Mixing Height.......1600-3600 ft agl until 1200, then 9000-11000 ft
agl.
Smoke dispersal.....Poor to fair until 1200, then excellent.
.TONIGHT...
Sky/weather.........Partly cloudy.
Chance of thunder...0 percent.
Min temperature.....56-61.
24 hr trend......3 degrees warmer.
Max humidity........57-63 percent.
24 hr trend......39 percent drier.
Humidity recovery...Good.
20-foot winds.......West winds 10 to 15 mph. Gusts up to 25 mph
until 2400, then 15 mph.
Ridge top winds.....West around 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West around 15 mph.
Mixing Height.......6000-8000 ft agl until 2400, then 400-800 ft
agl.
Smoke dispersal.....Very good until 2400, then poor.
.FRIDAY...
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.....84-89.
24 hr trend......3 degrees cooler.
Min humidity........22-28 percent.
24 hr trend......7 percent wetter.
20-foot winds.......Upslope/upvalley 5-9 mph until 1200, then north
around 10 mph. Gusts up to 20 mph.
Ridge top winds.....Northwest 10 to 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West 10 to 15 mph.
Mixing Height.......1600-3600 ft agl until 1200, then 6800-8800 ft
agl.
Smoke dispersal.....Poor until 1200, then good to very good.
.Forecast days 3 through 7......
.FRIDAY NIGHT...Mostly cloudy. Chance of showers and slight
chance of thunderstorms in the evening. Lows in the upper 50s.
Southeast winds around 10 mph.
.SATURDAY...Partly cloudy with slight chance of showers and
thunderstorms. Lows around 60. Highs in the upper 80s. Southwest
winds around 10 mph.
.SUNDAY THROUGH MONDAY...Mostly clear. Lows around 60. Highs in
the lower 90s. Southwest winds around 10 mph.
.TUESDAY...Partly cloudy. Lows in the upper 50s. Highs in the
lower 90s.
.WEDNESDAY...Mostly sunny. Slight chance of showers and
thunderstorms in the afternoon. Highs in the upper 80s.
$$
WYZ283-181345-
Upper Wind River Basin/Wind River Basin-
Including the cities of Crowheart, Lander, Riverton, and Shoshoni
544 AM MDT Thu Jul 17 2025
...RED FLAG WARNING IN EFFECT FROM NOON TODAY TO 8 PM MDT THIS
EVENING...
.TODAY...
Sky/weather.........Mostly sunny.
Chance of thunder...0 percent.
Max temperature.....84-89.
24 hr trend......15 degrees warmer.
Min humidity........12-18 percent.
24 hr trend......25 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph until 1200, then west
around 10 mph with gusts to around 30 mph until
1500, then around 20 mph with gusts to around
30 mph.
Ridge top winds.....Southwest around 10 mph until 1200, then west
around 20 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest around 10 mph until 1200, then west
around 25 mph.
Mixing Height.......1000-3000 ft agl until 1200, then 8000-10000 ft
agl.
Smoke dispersal.....Poor until 1200, then excellent.
.TONIGHT...
Sky/weather.........Mostly clear.
Chance of thunder...0 percent.
Min temperature.....54-59.
24 hr trend......7 degrees warmer.
Max humidity........43-49 percent.
24 hr trend......45 percent drier.
Humidity recovery...Moderate.
20-foot winds.......West winds 10 to 15 mph. Gusts up to 30 mph
until 2400, then 15 mph.
Ridge top winds.....West 15 to 20 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West 15 to 20 mph.
Mixing Height.......6200-8200 ft agl until 2400, then 400-800 ft
agl.
Smoke dispersal.....Very good to excellent until 2400, then poor.
.FRIDAY...
Sky/weather.........Partly cloudy. Slight chance of showers and
thunderstorms in the afternoon. Chance of
precipitation 20 percent.
Chance of thunder...10 percent.
Max temperature.....83-88.
24 hr trend......3 degrees cooler.
Min humidity........22-28 percent.
24 hr trend......7 percent wetter.
20-foot winds.......Upslope/upvalley 5-9 mph until 1500, then west
around 10 mph. Gusts up to 20 mph.
Ridge top winds.....Northwest 10 to 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West 10 to 15 mph.
Mixing Height.......1400-3400 ft agl until 1200, then 6000-8000 ft
agl.
Smoke dispersal.....Poor until 1200, then good.
.Forecast days 3 through 7......
.FRIDAY NIGHT...Partly cloudy. Slight chance of showers and
thunderstorms in the evening. Lows in the upper 50s. Southwest
winds around 10 mph.
.SATURDAY...Partly cloudy with slight chance of showers and
thunderstorms. Lows in the upper 50s. Highs in the upper 80s.
West winds around 10 mph.
.SUNDAY...Mostly clear. Slight chance of showers and
thunderstorms. Lows in the upper 50s. Highs around 90. Southwest
winds around 10 mph.
.MONDAY...Mostly clear. Lows in the upper 50s. Highs in the lower
90s. Southwest winds around 10 mph.
.TUESDAY THROUGH WEDNESDAY...Mostly clear with slight chance of
showers and thunderstorms. Lows in the upper 50s. Highs 88 to 93.
$$
WYZ285-181345-
South Bighorn Mountains-
544 AM MDT Thu Jul 17 2025
.TODAY...
Sky/weather.........Mostly sunny.
Chance of thunder...0 percent.
Max temperature.....81-86.
24 hr trend......20 degrees warmer.
Min humidity........15-21 percent.
24 hr trend......41 percent drier.
20-foot winds.......Southwest winds 10 to 15 mph until 1500, then
west around 20 mph. Gusts up to 30 mph.
Ridge top winds.....West 15 to 20 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest around 15 mph until 1200, then west
around 25 mph.
Mixing Height.......1000-3000 ft agl until 1200, then 7000-9000 ft
agl.
Smoke dispersal.....Poor until 1200, then very good to excellent.
.TONIGHT...
Sky/weather.........Mostly clear.
Chance of thunder...0 percent.
Min temperature.....54-59.
24 hr trend......7 degrees warmer.
Max humidity........55-61 percent.
24 hr trend......36 percent drier.
Humidity recovery...Moderate.
20-foot winds.......West winds 10 to 15 mph. Gusts up to 30 mph
until 2400, then 15 mph.
Ridge top winds.....West 15 to 20 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West 15 to 20 mph.
Mixing Height.......4600-6600 ft agl until 2400, then 200-600 ft
agl.
Smoke dispersal.....Very good until 2400, then poor.
.FRIDAY...
Sky/weather.........Mostly sunny then becoming partly cloudy.
Slight chance of showers and thunderstorms in
the afternoon. Chance of precipitation 20
percent.
Chance of thunder...20 percent.
Max temperature.....77-82.
24 hr trend......3 degrees cooler.
Min humidity........25-31 percent.
24 hr trend......9 percent wetter.
20-foot winds.......Upslope/upvalley 5-9 mph until 1200, then west
around 10 mph. Gusts up to 20 mph.
Ridge top winds.....West 10 to 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West 10 to 15 mph.
Mixing Height.......1200-3200 ft agl until 1200, then 5400-7400 ft
agl.
Smoke dispersal.....Poor until 1200, then good.
.Forecast days 3 through 7......
.FRIDAY NIGHT...Mostly cloudy. Chance of showers and slight
chance of thunderstorms in the evening. Lows in the upper 50s.
South winds around 10 mph.
.SATURDAY...Partly cloudy with slight chance of showers and
thunderstorms. Lows in the upper 50s. Highs in the lower 80s.
West winds around 10 mph.
.SUNDAY THROUGH MONDAY...Mostly clear. Lows in the upper 50s.
Highs in the mid 80s. Southwest winds 10 to 15 mph.
.TUESDAY THROUGH WEDNESDAY...Mostly clear with slight chance of
showers and thunderstorms. Lows in the mid 50s. Highs 80 to 85.
$$
WYZ281-181345-
Johnson County/Casper BLM-
Including the cities of Buffalo and Kaycee
544 AM MDT Thu Jul 17 2025
.TODAY...
Sky/weather.........Partly cloudy then becoming sunny.
Chance of thunder...0 percent.
Max temperature.....82-87.
24 hr trend......23 degrees warmer.
Min humidity........24-30 percent.
24 hr trend......42 percent drier.
20-foot winds.......South winds 10 to 15 mph until 1500, then
northwest. Gusts up to 25 mph.
Ridge top winds.....South around 20 mph until 1200, then northwest.
Chc of wetting rain.Zero percent.
Transport winds.....South around 20 mph until 1200, then west.
Mixing Height.......1000-3000 ft agl until 1200, then 6600-8600 ft
agl.
Smoke dispersal.....Poor until 1200, then very good.
.TONIGHT...
Sky/weather.........Mostly clear.
Chance of thunder...0 percent.
Min temperature.....55-60.
24 hr trend......4 degrees warmer.
Max humidity........73-79 percent.
24 hr trend......15 percent drier.
Humidity recovery...Excellent.
20-foot winds.......North winds around 10 mph until 0300, then
downslope/downvalley 4-7 mph. Gusts up to 20
mph.
Ridge top winds.....Northwest 10 to 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....North 10 to 15 mph.
Mixing Height.......4200-6200 ft agl until 2400, then 400-600 ft
agl.
Smoke dispersal.....Good until 2400, then poor.
.FRIDAY...
Sky/weather.........Partly cloudy. 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......3 degrees cooler.
Min humidity........32-38 percent.
24 hr trend......12 percent wetter.
20-foot winds.......Upslope/upvalley 5-9 mph until 1200, then
northeast around 10 mph. Gusts up to 15 mph.
Ridge top winds.....Northeast 10 to 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Northwest 10 to 15 mph.
Mixing Height.......1400-3400 ft agl until 1200, then 5400-7400 ft
agl.
Smoke dispersal.....Poor to fair.
.Forecast days 3 through 7......
.FRIDAY NIGHT...Mostly cloudy. Slight chance of showers and
thunderstorms in the evening. Lows around 60. South winds around
10 mph.
.SATURDAY...Partly cloudy with slight chance of showers and
thunderstorms. Lows in the lower 60s. Highs around 90. Southwest
winds around 10 mph.
.SUNDAY...Mostly clear. Lows around 60. Highs in the lower 90s.
West winds around 10 mph.
.MONDAY...Mostly clear. Slight chance of showers and
thunderstorms. Lows in the upper 50s. Highs in the lower 90s.
West winds around 10 mph.
.TUESDAY THROUGH WEDNESDAY...Mostly clear with slight chance of
showers and thunderstorms. Lows in the upper 50s. Highs 86 to 91.
$$
WYZ282-181345-
South Bighorn Basin/Worland BLM-
Including the cities of Ten Sleep, Thermopolis, and Worland
544 AM MDT Thu Jul 17 2025
.TODAY...
Sky/weather.........Sunny.
Chance of thunder...0 percent.
Max temperature.....82-87.
24 hr trend......19 degrees warmer.
Min humidity........13-19 percent.
24 hr trend......29 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph until 1200, then
northwest 10 to 15 mph with gusts to around 25
mph.
Ridge top winds.....South around 10 mph until 1200, then northwest.
Chc of wetting rain.Zero percent.
Transport winds.....South around 10 mph until 1200, then west
around 20 mph.
Mixing Height.......1000-3000 ft agl until 1200, then 7200-9200 ft
agl.
Smoke dispersal.....Poor until 1200, then very good.
.TONIGHT...
Sky/weather.........Mostly clear.
Chance of thunder...0 percent.
Min temperature.....53-58.
24 hr trend......5 degrees warmer.
Max humidity........62-68 percent.
24 hr trend......28 percent drier.
Humidity recovery...Good.
20-foot winds.......West winds 10 to 15 mph. Gusts up to 25 mph
until 2400, then 15 mph.
Ridge top winds.....West 10 to 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West 10 to 15 mph.
Mixing Height.......5000-7000 ft agl until 2400, then 400-600 ft
agl.
Smoke dispersal.....Good to very good until 2400, then poor.
.FRIDAY...
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.....79-84.
24 hr trend......3 degrees cooler.
Min humidity........23-29 percent.
24 hr trend......9 percent wetter.
20-foot winds.......Upslope/upvalley 5-9 mph. Gusts up to 15 mph.
Ridge top winds.....West around 10 mph until 1200, then northeast.
Chc of wetting rain.Zero percent.
Transport winds.....West around 10 mph.
Mixing Height.......800-2800 ft agl until 1200, then 4600-6600 ft
agl.
Smoke dispersal.....Poor to fair.
.Forecast days 3 through 7......
.FRIDAY NIGHT...Partly cloudy. Slight chance of showers and
thunderstorms in the evening. Lows in the upper 50s. Winds
generally less than 10 mph.
.SATURDAY THROUGH SUNDAY...Mostly clear with slight chance of
showers and thunderstorms. Lows around 60. Highs in the lower
90s. Southwest winds around 10 mph.
.MONDAY...Mostly clear. Lows in the upper 50s. Highs in the lower
90s. West winds around 10 mph.
.TUESDAY THROUGH WEDNESDAY...Mostly clear with slight chance of
showers and thunderstorms. Lows in the upper 50s. Highs 88 to 93.
$$
WYZ275-181345-
North Bighorn Basin/Worland BLM-
Including the cities of Greybull, Lovell, and Powell
544 AM MDT Thu Jul 17 2025
.TODAY...
Sky/weather.........Sunny.
Chance of thunder...0 percent.
Max temperature.....78-83.
24 hr trend......17 degrees warmer.
Min humidity........18-24 percent.
24 hr trend......27 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph until 0900, then
southeast around 10 mph with gusts to around 25
mph until 1500, then north with gusts to around
25 mph.
Ridge top winds.....Southeast 10 to 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....South around 10 mph until 1200, then southwest.
Mixing Height.......800-2800 ft agl until 1200, then 5800-7800 ft
agl.
Smoke dispersal.....Poor until 1200, then good to very good.
.TONIGHT...
Sky/weather.........Mostly clear.
Chance of thunder...0 percent.
Min temperature.....53-58.
24 hr trend......5 degrees warmer.
Max humidity........60-66 percent.
24 hr trend......20 percent drier.
Humidity recovery...Good.
20-foot winds.......Northwest winds 10 to 15 mph. Gusts up to 25
mph until 2400, then 15 mph.
Ridge top winds.....Northwest around 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Northwest around 15 mph.
Mixing Height.......3800-5800 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 and
thunderstorms in the afternoon. Chance of
precipitation 20 percent.
Chance of thunder...10 percent.
Max temperature.....77-82.
24 hr trend......1 degree cooler.
Min humidity........24-30 percent.
24 hr trend......7 percent wetter.
20-foot winds.......Upslope/upvalley 5-9 mph until 1500, then
southeast around 10 mph. Gusts up to 15 mph.
Ridge top winds.....Northwest around 10 mph until 1200, then
southeast.
Chc of wetting rain.Zero percent.
Transport winds.....West 10 to 15 mph.
Mixing Height.......1000-3000 ft agl until 1200, then 4600-6600 ft
agl.
Smoke dispersal.....Poor to fair.
.Forecast days 3 through 7......
.FRIDAY NIGHT...Partly cloudy. Slight chance of showers and
thunderstorms in the evening. Lows in the upper 50s. Winds
generally less than 10 mph.
.SATURDAY THROUGH SUNDAY...Mostly clear with slight chance of
showers and thunderstorms. Lows in the upper 50s. Highs in the
lower 90s. Southwest winds around 10 mph.
.MONDAY...Mostly clear. Lows in the upper 50s. Highs in the lower
90s. Northwest winds around 10 mph.
.TUESDAY THROUGH WEDNESDAY...Mostly clear with slight chance of
showers and thunderstorms. Lows in the upper 50s. Highs 87 to 92.
$$
WYZ276-181345-
Cody Foothills-
Including the cities of Clark, Cody, and Meeteetse
544 AM MDT Thu Jul 17 2025
.TODAY...
Sky/weather.........Sunny.
Chance of thunder...0 percent.
Max temperature.....81-86.
24 hr trend......19 degrees warmer.
Min humidity........19-25 percent.
24 hr trend......35 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph until 1200, then
northwest 15 to 20 mph with gusts to around 30
mph.
Ridge top winds.....South around 10 mph until 1200, then northwest
around 20 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest around 10 mph until 1200, then west
around 20 mph.
Mixing Height.......1400-3400 ft agl until 1200, then 7400-9400 ft
agl.
Smoke dispersal.....Poor to fair until 1200, then very good to
excellent.
.TONIGHT...
Sky/weather.........Mostly clear.
Chance of thunder...0 percent.
Min temperature.....54-59.
24 hr trend......6 degrees warmer.
Max humidity........53-59 percent.
24 hr trend......28 percent drier.
Humidity recovery...Moderate.
20-foot winds.......Northwest winds 10 to 15 mph. Gusts up to 30
mph until 2400, then 15 mph.
Ridge top winds.....Northwest 10 to 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Northwest around 15 mph.
Mixing Height.......4000-6000 ft agl until 2400, then 600-1000 ft
agl.
Smoke dispersal.....Good to very good until 2400, then poor.
.FRIDAY...
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 40
percent.
Chance of thunder...30 percent.
Max temperature.....79-84.
24 hr trend......2 degrees cooler.
Min humidity........27-33 percent.
24 hr trend......12 percent wetter.
20-foot winds.......Upslope/upvalley 5-9 mph until 1200, then east
around 10 mph. Gusts up to 20 mph.
Ridge top winds.....North around 10 mph until 1200, then east.
Chc of wetting rain.Zero percent.
Transport winds.....Northwest 10 to 15 mph.
Mixing Height.......1600-3600 ft agl until 1200, then 4800-6800 ft
agl.
Smoke dispersal.....Poor to fair until 1200, then good.
.Forecast days 3 through 7......
.FRIDAY NIGHT...Partly cloudy. Slight chance of showers and
thunderstorms in the evening. Lows in the upper 50s. Winds
generally less than 10 mph.
.SATURDAY...Mostly clear. Slight chance of showers and
thunderstorms. Lows in the upper 50s. Highs in the mid 80s. West
winds around 10 mph.
.SUNDAY...Partly cloudy with slight chance of showers and
thunderstorms. Lows in the upper 50s. Highs in the mid 80s. West
winds around 10 mph.
.MONDAY...Mostly clear. Slight chance of showers and
thunderstorms. Lows in the upper 50s. Highs in the upper 80s.
West winds around 10 mph.
.TUESDAY THROUGH WEDNESDAY...Mostly clear with slight chance of
showers and thunderstorms. Lows in the mid 50s. Highs in the mid
80s.
$$
WYZ287-181345-
Owl Creek Mountains-
544 AM MDT Thu Jul 17 2025
.TODAY...
Sky/weather.........Mostly sunny.
Chance of thunder...0 percent.
Max temperature.....82-87.
24 hr trend......20 degrees warmer.
Min humidity........12-18 percent.
24 hr trend......37 percent drier.
20-foot winds.......Southwest winds 10 to 15 mph until 1500, then
west around 20 mph. Gusts up to 30 mph.
Ridge top winds.....Southwest around 15 mph until 1200, then west
around 25 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest around 15 mph until 1200, then west
around 25 mph.
Mixing Height.......600-2600 ft agl until 1200, then 6800-8800 ft
agl.
Smoke dispersal.....Poor until 1200, then excellent.
.TONIGHT...
Sky/weather.........Mostly clear.
Chance of thunder...0 percent.
Min temperature.....54-59.
24 hr trend......8 degrees warmer.
Max humidity........48-54 percent.
24 hr trend......41 percent drier.
Humidity recovery...Moderate.
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.Zero percent.
Transport winds.....West 15 to 20 mph.
Mixing Height.......4600-6600 ft agl until 2400, then 200-600 ft
agl.
Smoke dispersal.....Very good until 2400, then poor.
.FRIDAY...
Sky/weather.........Partly cloudy. Chance of showers and
thunderstorms in the afternoon. Chance of
precipitation 50 percent.
Chance of thunder...40 percent.
Max temperature.....76-81.
24 hr trend......5 degrees cooler.
Min humidity........27-33 percent.
24 hr trend......13 percent wetter.
20-foot winds.......Upslope/upvalley 5-9 mph until 1200, then
southeast around 10 mph. Gusts up to 15 mph.
Ridge top winds.....Northeast around 10 mph until 1200, then
southeast.
Chc of wetting rain.Zero percent until 1200, then 15 percent.
Transport winds.....Northwest around 10 mph until 1200, then west.
Mixing Height.......600-2600 ft agl until 1200, then 3800-5800 ft
agl.
Smoke dispersal.....Poor to fair.
.Forecast days 3 through 7......
.FRIDAY NIGHT...Partly cloudy. Slight chance of showers and
thunderstorms in the evening. Lows in the upper 50s. West winds
around 10 mph.
.SATURDAY...Partly cloudy with chance of showers and slight
chance of thunderstorms. Lows in the upper 50s. Highs in the
lower 80s. West winds around 10 mph.
.SUNDAY...Mostly clear. Slight chance of showers and
thunderstorms. Lows around 60. Highs in the mid 80s. Southwest
winds around 15 mph.
.MONDAY...Mostly clear. Lows in the upper 50s. Highs in the mid
80s. West winds around 10 mph.
.TUESDAY THROUGH WEDNESDAY...Mostly clear with slight chance of
showers and thunderstorms. Lows in the upper 50s. Highs 81 to 86.
$$
WYZ286-181345-
Absaroka Mountains/North Shoshone NF-
Including the city of Pahaska
544 AM MDT Thu Jul 17 2025
.TODAY...
Sky/weather.........Sunny. Areas of smoke in the late morning and
early afternoon.
Chance of thunder...0 percent.
Max temperature.....72-77.
24 hr trend......12 degrees warmer.
Min humidity........19-25 percent.
24 hr trend......32 percent drier.
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.
Transport winds.....West around 20 mph until 1200, then around 30
mph.
Mixing Height.......2000-4000 ft agl until 1200, then 7000-9000 ft
agl.
Smoke dispersal.....Fair to good until 1200, then excellent.
.TONIGHT...
Sky/weather.........Partly cloudy.
Chance of thunder...0 percent.
Min temperature.....48-53.
24 hr trend......6 degrees warmer.
Max humidity........53-59 percent.
24 hr trend......49 percent drier.
Humidity recovery...Moderate.
20-foot winds.......West winds 10 to 15 mph with gusts to around 30
mph until 0300, then downslope/downvalley 4-7
mph.
Ridge top winds.....West 10 to 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West 15 to 20 mph.
Mixing Height.......4000-6000 ft agl until 2400, then 400-1000 ft
agl.
Smoke dispersal.....Good to very good until 2400, then poor.
.FRIDAY...
Sky/weather.........Partly cloudy. Chance of showers and
thunderstorms in the afternoon. Chance of
precipitation 50 percent.
Chance of thunder...30 percent.
Max temperature.....72-77.
24 hr trend......1 degree cooler.
Min humidity........27-33 percent.
24 hr trend......6 percent wetter.
20-foot winds.......Upslope/upvalley 5-9 mph until 0900, then west
10 to 15 mph. Gusts up to 30 mph.
Ridge top winds.....West 15 to 20 mph.
Chc of wetting rain.Zero percent until 1200, then 10 percent.
Transport winds.....West around 15 mph until 1200, then around 25
mph.
Mixing Height.......3000-5000 ft agl until 1200, then 5800-7800 ft
agl.
Smoke dispersal.....Good until 1200, then very good.
.Forecast days 3 through 7......
.FRIDAY NIGHT...Partly cloudy. Slight chance of showers and
thunderstorms in the evening. Lows in the lower 50s. West winds
around 10 mph.
.SATURDAY...Mostly clear. Chance of showers and thunderstorms.
Lows in the lower 50s. Highs in the mid 70s. West winds around
15 mph.
.SUNDAY THROUGH MONDAY...Mostly clear with slight chance of
showers and thunderstorms. Lows in the lower 50s. Highs in the
mid 70s. West winds around 15 mph.
.TUESDAY THROUGH WEDNESDAY...Mostly clear with slight chance of
showers and thunderstorms. Lows in the upper 40s. Highs in the
lower 70s.
$$
WYZ140-181345-
Yellowstone National Park-
Including the cities of Lake, Mammoth, and Old Faithful
544 AM MDT Thu Jul 17 2025
.TODAY...
Sky/weather.........Mostly sunny. Areas of smoke early in the
afternoon.
Chance of thunder...0 percent.
Max temperature.....74-79.
24 hr trend......4 degrees warmer.
Min humidity........19-25 percent.
24 hr trend......12 percent drier.
20-foot winds.......Southwest winds 10 to 15 mph until 1500, then
west. Gusts up to 30 mph.
Ridge top winds.....Southwest 15 to 20 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest around 15 mph until 1200, then west
around 25 mph.
Mixing Height.......1800-3800 ft agl until 1200, then 7000-9000 ft
agl.
Smoke dispersal.....Poor to fair until 1200, then excellent.
.TONIGHT...
Sky/weather.........Mostly clear.
Chance of thunder...0 percent.
Min temperature.....44-49.
24 hr trend......3 degrees warmer.
Max humidity........58-64 percent.
24 hr trend......20 percent drier.
Humidity recovery...Good.
20-foot winds.......West winds 10 to 15 mph with gusts to around 25
mph until 2400, then downslope/downvalley 4-7
mph.
Ridge top winds.....West 10 to 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West 10 to 15 mph.
Mixing Height.......4600-6600 ft agl until 2400, then 400-800 ft
agl.
Smoke dispersal.....Very good until 2400, then poor.
.FRIDAY...
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.....75-80.
24 hr trend......1 degree warmer.
Min humidity........26-32 percent.
24 hr trend......6 percent wetter.
20-foot winds.......Upslope/upvalley 5-9 mph until 1200, then west
around 10 mph. Gusts up to 25 mph.
Ridge top winds.....Southwest 10 to 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest around 10 mph until 1200, then west
around 25 mph.
Mixing Height.......2600-4600 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. Slight chance of showers and
thunderstorms in the evening. Lows in the mid 40s. Winds
generally less than 10 mph.
.SATURDAY THROUGH SUNDAY...Mostly clear with slight chance of
showers and thunderstorms. Lows in the mid 40s. Highs in the mid
70s. Southwest winds around 10 mph.
.MONDAY...Partly cloudy. Slight chance of showers and
thunderstorms. Lows in the mid 40s. Highs in the mid 70s.
Southwest winds around 10 mph.
.TUESDAY THROUGH WEDNESDAY...Mostly clear with slight chance of
showers and thunderstorms. Lows in the mid 40s. Highs in the mid
70s.
$$
WYZ415-181345-
North Zone Bridger Teton NF and Grand Teton NP-
Including the cities of Jackson and Moran
544 AM MDT Thu Jul 17 2025
.TODAY...
Sky/weather.........Sunny. Areas of smoke late in the morning.
Chance of thunder...0 percent.
Max temperature.....75-80.
24 hr trend......3 degrees warmer.
Min humidity........19-25 percent.
24 hr trend......7 percent drier.
20-foot winds.......Southwest winds 10 to 15 mph until 1200, then
west around 20 mph. Gusts up to 30 mph.
Ridge top winds.....Southwest around 15 mph until 1200, then west
around 25 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest around 15 mph until 1200, then west
around 25 mph.
Mixing Height.......2000-4000 ft agl until 1200, then 7200-9200 ft
agl.
Smoke dispersal.....Fair to good until 1200, then excellent.
.TONIGHT...
Sky/weather.........Mostly clear.
Chance of thunder...0 percent.
Min temperature.....47-52.
24 hr trend......6 degrees warmer.
Max humidity........51-57 percent.
24 hr trend......28 percent drier.
Humidity recovery...Moderate.
20-foot winds.......West winds 10 to 15 mph with gusts to around 25
mph until 2400, then downslope/downvalley 4-7
mph.
Ridge top winds.....West 10 to 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West around 20 mph until 2400, then southwest
around 10 mph.
Mixing Height.......4200-6200 ft agl until 2400, then 400-1000 ft
agl.
Smoke dispersal.....Good to very good until 2400, then poor.
.FRIDAY...
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......Unchanged.
Min humidity........28-34 percent.
24 hr trend......8 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.
Transport winds.....Southwest around 10 mph until 1200, then west
around 20 mph.
Mixing Height.......2600-4600 ft agl until 1200, then 5600-7600 ft
agl.
Smoke dispersal.....Good.
.Forecast days 3 through 7......
.FRIDAY NIGHT...Partly cloudy. Slight chance of showers and
thunderstorms in the evening. Lows in the upper 40s. Winds
generally less than 10 mph.
.SATURDAY...Mostly clear with slight chance of showers and
thunderstorms. Lows in the mid 40s. Highs in the mid 70s.
Southwest winds around 10 mph.
.SUNDAY THROUGH MONDAY...Mostly clear with slight chance of
showers and thunderstorms. Lows in the upper 40s. Highs in the
mid 70s. Southwest winds around 10 mph.
.TUESDAY THROUGH WEDNESDAY...Mostly clear with slight chance of
showers and thunderstorms. Lows in the upper 40s. Highs in the
mid 70s.
$$
WYZ416-181345-
West Wind River Mountains/East Zone Bridger Teton NF-
544 AM MDT Thu Jul 17 2025
.TODAY...
Sky/weather.........Mostly sunny. Areas of smoke early in the
afternoon.
Chance of thunder...0 percent.
Max temperature.....72-77.
24 hr trend......3 degrees warmer.
Min humidity........19-25 percent.
24 hr trend......1 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph until 0900, then west
15 to 20 mph. Gusts up to 35 mph.
Ridge top winds.....Southwest around 15 mph until 1200, then west
around 25 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West around 15 mph until 1200, then around 30
mph.
Mixing Height.......2400-4400 ft agl until 1200, then 8200-10200 ft
agl.
Smoke dispersal.....Good until 1200, then excellent.
.TONIGHT...
Sky/weather.........Mostly clear.
Chance of thunder...0 percent.
Min temperature.....46-51.
24 hr trend......7 degrees warmer.
Max humidity........44-50 percent.
24 hr trend......32 percent drier.
Humidity recovery...Moderate.
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 northwest
around 10 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West around 20 mph until 2400, then around 10
mph.
Mixing Height.......4200-6200 ft agl until 2400, then 400-800 ft
agl.
Smoke dispersal.....Very good until 2400, then poor.
.FRIDAY...
Sky/weather.........Partly cloudy then becoming mostly cloudy.
Slight chance of showers and thunderstorms in
the afternoon. Chance of precipitation 20
percent.
Chance of thunder...20 percent.
Max temperature.....69-74.
24 hr trend......2 degrees cooler.
Min humidity........26-32 percent.
24 hr trend......6 percent wetter.
20-foot winds.......Upslope/upvalley 5-9 mph until 0900, then west
10 to 15 mph. Gusts up to 25 mph.
Ridge top winds.....West around 10 mph until 1200, then around 20
mph.
Chc of wetting rain.Less than 5 percent.
Transport winds.....West 15 to 20 mph.
Mixing Height.......3200-5200 ft agl until 1200, then 5600-7600 ft
agl.
Smoke dispersal.....Good.
.Forecast days 3 through 7......
.FRIDAY NIGHT...Partly cloudy. Slight chance of showers and
thunderstorms in the evening. Lows in the upper 40s. Winds
generally less than 10 mph.
.SATURDAY...Partly cloudy with chance of showers and
thunderstorms. Lows in the mid 40s. Highs around 70. West winds
around 10 mph.
.SUNDAY...Mostly clear. Slight chance of showers and
thunderstorms. Lows in the upper 40s. Highs in the lower 70s.
Southwest winds around 10 mph.
.MONDAY...Mostly clear. Lows in the upper 40s. Highs in the lower
70s. Southwest winds around 10 mph.
.TUESDAY...Mostly clear. Lows in the upper 40s. Highs in the
lower 70s.
.WEDNESDAY...Partly cloudy. Slight chance of showers and
thunderstorms in the afternoon. Highs in the lower 70s.
$$
WYZ288-181345-
East Wind River Mountains/South Shoshone NF-
Including the cities of Dubois and South Pass
544 AM MDT Thu Jul 17 2025
...RED FLAG WARNING IN EFFECT FROM NOON TODAY TO 8 PM MDT THIS
EVENING...
.TODAY...
Sky/weather.........Mostly sunny.
Chance of thunder...0 percent.
Max temperature.....76-81.
24 hr trend......8 degrees warmer.
Min humidity........16-22 percent.
24 hr trend......15 percent drier.
20-foot winds.......West winds 15 to 20 mph with gusts to around 35
mph.
Ridge top winds.....West 20 to 25 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West around 20 mph until 1200, then around 30
mph.
Mixing Height.......2400-4400 ft agl until 1200, then 8600-10600 ft
agl.
Smoke dispersal.....Good until 1200, then excellent.
.TONIGHT...
Sky/weather.........Partly cloudy.
Chance of thunder...0 percent.
Min temperature.....51-56.
24 hr trend......10 degrees warmer.
Max humidity........36-42 percent.
24 hr trend......58 percent drier.
Humidity recovery...Poor.
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.Zero percent.
Transport winds.....West 15 to 20 mph.
Mixing Height.......4800-6800 ft agl until 2400, then 400-800 ft
agl.
Smoke dispersal.....Very good until 2400, then poor.
.FRIDAY...
Sky/weather.........Partly cloudy then becoming mostly 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.....72-77.
24 hr trend......2 degrees cooler.
Min humidity........25-31 percent.
24 hr trend......7 percent wetter.
20-foot winds.......West winds 10 to 15 mph with gusts to around 30
mph.
Ridge top winds.....West 15 to 20 mph.
Chc of wetting rain.Zero percent until 1200, then 10 percent.
Transport winds.....West 15 to 20 mph.
Mixing Height.......3000-5000 ft agl until 1200, then 5600-7600 ft
agl.
Smoke dispersal.....Good.
.Forecast days 3 through 7......
.FRIDAY NIGHT...Mostly cloudy. Slight chance of showers and
thunderstorms in the evening. Lows in the lower 50s. West winds
around 10 mph.
.SATURDAY...Partly cloudy with chance of showers and
thunderstorms. Lows in the lower 50s. Highs in the mid 70s. West
winds around 10 mph.
.SUNDAY...Mostly clear. Slight chance of showers and
thunderstorms. Lows in the lower 50s. Highs in the mid 70s. West
winds around 15 mph.
.MONDAY...Mostly clear. Lows in the lower 50s. Highs in the mid
70s. Southwest winds around 15 mph.
.TUESDAY THROUGH WEDNESDAY...Mostly clear with slight chance of
showers and thunderstorms. Lows in the lower 50s. Highs in the
mid 70s.
$$
WYZ414-181345-
Salt and Wyoming Ranges/West Zone Bridger Teton NF-
Including the city of Afton
544 AM MDT Thu Jul 17 2025
.TODAY...
Sky/weather.........Mostly sunny. Areas of smoke in the late
morning and early afternoon.
Chance of thunder...0 percent.
Max temperature.....76-81.
24 hr trend......3 degrees warmer.
Min humidity........17-23 percent.
24 hr trend......1 percent drier.
20-foot winds.......Southwest winds 10 to 15 mph until 1200, then
west around 20 mph. Gusts up to 30 mph.
Ridge top winds.....Southwest around 15 mph until 1200, then west
around 25 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest around 15 mph until 1200, then west
around 25 mph.
Mixing Height.......3000-5000 ft agl until 1200, then 9200-11200 ft
agl.
Smoke dispersal.....Good until 1200, then excellent.
.TONIGHT...
Sky/weather.........Partly cloudy.
Chance of thunder...0 percent.
Min temperature.....47-52.
24 hr trend......7 degrees warmer.
Max humidity........50-56 percent.
24 hr trend......3 percent drier.
Humidity recovery...Moderate.
20-foot winds.......West winds 10 to 15 mph with gusts to around 25
mph until 2400, then downslope/downvalley 4-7
mph.
Ridge top winds.....West 10 to 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West 10 to 15 mph.
Mixing Height.......4600-6600 ft agl until 2400, then 400-1000 ft
agl.
Smoke dispersal.....Very good until 2400, then poor.
.FRIDAY...
Sky/weather.........Partly cloudy then becoming mostly 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 30 percent.
Chance of thunder...30 percent.
Max temperature.....73-78.
24 hr trend......1 degree cooler.
Min humidity........26-32 percent.
24 hr trend......8 percent wetter.
20-foot winds.......Upslope/upvalley 5-9 mph until 1200, then west
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 around 10 mph until 1200, then west
around 20 mph.
Mixing Height.......2800-4800 ft agl until 1200, then 5400-7400 ft
agl.
Smoke dispersal.....Good.
.Forecast days 3 through 7......
.FRIDAY NIGHT...Partly cloudy. Slight chance of showers and
thunderstorms in the evening. Lows in the lower 50s. Winds
generally less than 10 mph.
.SATURDAY...Partly cloudy with chance of showers and
thunderstorms. Lows in the upper 40s. Highs in the mid 70s.
Southwest winds around 10 mph.
.SUNDAY THROUGH MONDAY...Mostly clear. Lows in the lower 50s.
Highs in the upper 70s. Southwest winds around 10 mph.
.TUESDAY...Mostly clear. Lows around 50. Highs in the mid 70s.
.WEDNESDAY...Partly cloudy. Highs in the mid 70s.
$$
WYZ277>279-181345-
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
544 AM MDT Thu Jul 17 2025
...RED FLAG WARNING IN EFFECT FROM NOON TODAY TO 8 PM MDT THIS
EVENING...
.TODAY...
Sky/weather.........Mostly sunny then becoming partly cloudy.
Slight chance of showers and dry thunderstorms
in the afternoon. Chance of precipitation 20
percent.
Chance of thunder...10 percent.
Max temperature.....76-81.
24 hr trend......2 degrees warmer.
Min humidity........19-25 percent.
24 hr trend......1 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph until 0900, then west
10 to 15 mph with gusts to around 30 mph until
1500, then around 20 mph with gusts to around
30 mph.
Ridge top winds.....Southwest around 10 mph until 1200, then west
around 25 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest around 10 mph until 1200, then west
around 25 mph.
Mixing Height.......3400-5400 ft agl until 1200, then 11200-13200
ft agl.
Smoke dispersal.....Fair to good until 1200, then excellent.
.TONIGHT...
Sky/weather.........Partly cloudy.
Chance of thunder...0 percent.
Min temperature.....50-55.
24 hr trend......4 degrees warmer.
Max humidity........47-53 percent.
24 hr trend......14 percent drier.
Humidity recovery...Moderate.
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.......4800-6800 ft agl until 2400, then 400-600 ft
agl.
Smoke dispersal.....Very good until 2400, then poor.
.FRIDAY...
Sky/weather.........Partly cloudy then becoming mostly cloudy.
Slight chance of showers and thunderstorms in
the afternoon. Chance of precipitation 20
percent.
Chance of thunder...20 percent.
Max temperature.....76-81.
24 hr trend......1 degree cooler.
Min humidity........30-36 percent.
24 hr trend......8 percent wetter.
20-foot winds.......Upslope/upvalley 5-9 mph until 0900, then
southwest 10 to 15 mph with gusts to around 25
mph.
Ridge top winds.....Southwest 10 to 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West 10 to 15 mph.
Mixing Height.......2800-4800 ft agl until 1200, then 7000-9000 ft
agl.
Smoke dispersal.....Poor to fair until 1200, then very good.
.Forecast days 3 through 7......
.FRIDAY NIGHT...Mostly cloudy. Slight chance of showers and
thunderstorms in the evening, then slight chance of showers after
midnight. Lows in the mid 50s. Winds generally less than 10 mph.
.SATURDAY...Partly cloudy with chance of showers and
thunderstorms. Lows in the lower 50s. Highs around 80. Southwest
winds around 10 mph.
.SUNDAY THROUGH MONDAY...Mostly clear. Lows in the mid 50s. Highs
81 to 86. Southwest winds around 10 mph.
.TUESDAY THROUGH WEDNESDAY...Mostly clear. Lows in the lower 50s.
Highs in the mid 80s.
$$
WYZ289-181345-
Granite/Green/Ferris/Rattlesnake Mountains-
Including the city of Jeffrey City
544 AM MDT Thu Jul 17 2025
...RED FLAG WARNING IN EFFECT FROM NOON TODAY TO 8 PM MDT THIS
EVENING...
.TODAY...
Sky/weather.........Mostly sunny then becoming partly cloudy.
Chance of thunder...0 percent.
Max temperature.....83-88.
24 hr trend......10 degrees warmer.
Min humidity........11-17 percent.
24 hr trend......18 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph until 0900, then west
15 to 20 mph. Gusts up to 30 mph.
Ridge top winds.....Southwest around 15 mph until 1200, then west
around 25 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest around 15 mph until 1200, then west
around 25 mph.
Mixing Height.......2800-4800 ft agl until 1200, then 11000-13000
ft agl.
Smoke dispersal.....Good until 1200, then excellent.
.TONIGHT...
Sky/weather.........Partly cloudy.
Chance of thunder...0 percent.
Min temperature.....56-61.
24 hr trend......6 degrees warmer.
Max humidity........39-45 percent.
24 hr trend......46 percent drier.
Humidity recovery...Moderate.
20-foot winds.......West winds 10 to 15 mph. Gusts up to 30 mph
until 2400, then 15 mph.
Ridge top winds.....West 15 to 20 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West 15 to 20 mph.
Mixing Height.......5800-7800 ft agl until 2400, then 400-600 ft
agl.
Smoke dispersal.....Very good until 2400, then poor.
.FRIDAY...
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.....81-86.
24 hr trend......1 degree cooler.
Min humidity........17-23 percent.
24 hr trend......4 percent wetter.
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.
Transport winds.....West 10 to 15 mph.
Mixing Height.......3000-5000 ft agl until 1200, then 8800-10800 ft
agl.
Smoke dispersal.....Poor to fair until 1200, then very good to
excellent.
.Forecast days 3 through 7......
.FRIDAY NIGHT...Mostly cloudy. Chance of showers and slight
chance of thunderstorms in the evening. Lows in the upper 50s.
Southwest winds around 10 mph.
.SATURDAY...Partly cloudy with chance of showers and slight
chance of thunderstorms. Lows in the mid 50s. Highs in the mid
80s. Southwest winds around 10 mph.
.SUNDAY THROUGH MONDAY...Mostly clear. Lows in the upper 50s.
Highs 84 to 89. Southwest winds around 15 mph.
.TUESDAY...Partly cloudy. Lows in the upper 50s. Highs in the
upper 80s.
.WEDNESDAY...Mostly sunny. Highs in the mid 80s.
$$
WYZ300-181345-
Casper Mountain-
544 AM MDT Thu Jul 17 2025
.TODAY...
Sky/weather.........Mostly sunny.
Chance of thunder...0 percent.
Max temperature.....80-85.
24 hr trend......15 degrees warmer.
Min humidity........14-20 percent.
24 hr trend......41 percent drier.
20-foot winds.......South winds around 10 mph until 0900, then west
15 to 20 mph. Gusts up to 30 mph.
Ridge top winds.....Southwest around 15 mph until 1200, then west.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest around 15 mph until 1200, then west
around 25 mph.
Mixing Height.......2000-4000 ft agl until 1200, then 9600-11600 ft
agl.
Smoke dispersal.....Fair to good until 1200, then excellent.
.TONIGHT...
Sky/weather.........Partly cloudy. Slight chance of showers early
in the evening. Slight chance of showers late
in the evening. Chance of showers 20 percent.
Chance of thunder...0 percent.
Min temperature.....56-61.
24 hr trend......6 degrees warmer.
Max humidity........47-53 percent.
24 hr trend......46 percent drier.
Humidity recovery...Moderate.
20-foot winds.......West winds around 10 mph with gusts to around
25 mph until 0300, then southwest 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.......5600-7600 ft agl until 2400, then 200-600 ft
agl.
Smoke dispersal.....Very good until 2400, then poor.
.FRIDAY...
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.....79-84.
24 hr trend......Unchanged.
Min humidity........22-28 percent.
24 hr trend......5 percent wetter.
20-foot winds.......Upslope/upvalley 5-9 mph until 1200, then
northwest around 10 mph. Gusts up to 20 mph.
Ridge top winds.....Southwest around 10 mph until 1200, then
northwest.
Chc of wetting rain.Zero percent.
Transport winds.....West around 15 mph.
Mixing Height.......2400-4400 ft agl until 1200, then 8200-10200 ft
agl.
Smoke dispersal.....Fair to good until 1200, then very good.
.Forecast days 3 through 7......
.FRIDAY NIGHT...Mostly cloudy. Chance of showers and slight
chance of thunderstorms in the evening. Lows in the upper 50s.
South winds around 10 mph.
.SATURDAY...Partly cloudy with chance of showers and slight
chance of thunderstorms. Lows in the upper 50s. Highs in the
lower 80s. Southwest winds around 10 mph.
.SUNDAY THROUGH MONDAY...Mostly clear. Lows in the upper 50s.
Highs 81 to 86. Southwest winds around 10 mph.
.TUESDAY...Partly cloudy. Lows in the upper 50s. Highs in the mid
80s.
.WEDNESDAY...Mostly sunny. Slight chance of showers and
thunderstorms in the afternoon. Highs in the lower 80s.
$$