


Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS Riverton, WY
Issued by NWS Riverton, WY
819 FNUS55 KRIW 211911 FWFRIW Fire Weather Planning Forecast for Western and Central Wyoming National Weather Service Riverton WY 111 PM MDT Thu Aug 21 2025 .DISCUSSION... ...Yellowstone NP and Teton dispatch areas (includes fire weather zones 140...414...415...and 416)... Isolated to widely scattered rain showers and thunderstorms develop and push east this evening. The best chance is across zones 414 and 416. Dry lightning is possible (30%). Temperatures will remain fairly consistent today through Sunday, but will be cooler at higher elevations. RH will be similar to yesterday for zones 140 and 415, but slightly higher for zones 414 and 416 due to increased cloud cover. RH recovery will remain poor tonight, mainly for zones 414 and 415. West wind of 10-15 mph this afternoon becoming light after sunset tonight. ...Cody dispatch area (includes fire weather zones 275...276... 282...283...285...286...287...288...and 289)... Isolated to widely scattered rain showers and thunderstorms continue through this afternoon and evening. Gusty outflow wind and dry lightning are the main threats. The best chance of measurable rain will be across zones 283, 285, 288, and 289, with a very low chance (10%) of wetting rain today. Temperatures are much cooler this afternoon and RH values are much higher today (20-30%). RH recovery will be much better tonight ranging from good to excellent for all zones. Wind will be from the north 10-15 mph this afternoon becoming light tonight. ...Casper dispatch area (includes fire weather zones 277...278... 279...280...281...285...289...and 300)... Isolated to widely scattered rain showers and thunderstorms continue through this afternoon and evening. Gusty outflow wind and dry lightning are the main threats. The best chance of measurable rain will be across zones 280, 281, 285, 289, and 300, with a very low chance (10%) of wetting rain today. Temperatures are much cooler this afternoon and RH values are much higher today (20-35%). RH recovery will be much better tonight ranging from good to excellent for all zones, except 277 where it will be fair. Wind will be from the north 10-15 mph this afternoon becoming light tonight. ...Thunderstorms imply strong gusty and erratic winds... WYZ280-222115- Natrona County/Casper BLM- Including the cities of Casper and Midwest 111 PM MDT Thu Aug 21 2025 .TONIGHT... Sky/weather.........Mostly cloudy. Scattered showers and thunderstorms early in the evening, then isolated showers and thunderstorms in the evening. Some thunderstorms may produce gusty winds in the evening. Chance of precipitation 40 percent. Chance of thunder...30 percent. Min temperature.....56-61. 24 hr trend......5 degrees cooler. Max humidity........80-86 percent. 24 hr trend......36 percent wetter. Humidity recovery...Excellent. 20-foot winds.......Northeast winds 10 to 15 mph with gusts to around 25 mph. Ridge top winds.....Northeast around 15 mph. Chc of wetting rain.Zero percent. Transport winds.....Northeast around 15 mph. Mixing Height.......1400-3400 ft agl until 2400, then 600-800 ft agl. Smoke dispersal.....Poor. .FRIDAY... Sky/weather.........Partly cloudy. Isolated showers and thunderstorms late in the morning. Scattered showers and thunderstorms late in the afternoon. Some thunderstorms may produce gusty winds late in the morning. Chance of precipitation 30 percent. Chance of thunder...30 percent. Max temperature.....76-81. 24 hr trend......5 degrees cooler. Min humidity........40-46 percent. 24 hr trend......12 percent wetter. 20-foot winds.......Northeast winds around 10 mph with gusts to around 30 mph until 1500, then around 20 mph with gusts to around 30 mph. Ridge top winds.....Northeast 15 to 20 mph. Chc of wetting rain.Zero percent. Transport winds.....Northeast 15 to 20 mph. Mixing Height.......1000-3000 ft agl until 1200, then 4200-6200 ft agl. Smoke dispersal.....Poor until 1200, then good. .FRIDAY NIGHT... Sky/weather.........Partly cloudy. Chance of showers and thunderstorms in the evening, then slight chance of showers and thunderstorms after midnight. Chance of precipitation 50 percent. Chance of thunder...40 percent. Min temperature.....53-58. 24 hr trend......2 degrees cooler. Max humidity........83-89 percent. 24 hr trend......2 percent drier. Humidity recovery...Excellent. 20-foot winds.......Northeast winds 15 to 20 mph until 0300, then around 10 mph. Gusts up to 30 mph. Ridge top winds.....Northeast 15 to 20 mph. Chc of wetting rain.30 percent until 2400, then 5 percent. Transport winds.....Northeast 15 to 20 mph. Mixing Height.......2400-4400 ft agl until 2400, then 1200-1800 ft agl. Smoke dispersal.....Poor to fair. .SATURDAY... Sky/weather.........Partly cloudy then becoming mostly sunny. Isolated showers and thunderstorms in the afternoon. Some thunderstorms may produce gusty winds in the afternoon. Chance of precipitation 20 percent. Chance of thunder...10 percent. Max temperature.....76-81. 24 hr trend......2 degrees cooler. Min humidity........37-43 percent. 24 hr trend......Unchanged. 20-foot winds.......Northeast winds around 10 mph until 0900, then upslope/upvalley 5-9 mph until 1500, then northeast around 10 mph. Gusts up to 20 mph. Ridge top winds.....East around 15 mph. Chc of wetting rain.Zero percent. Transport winds.....East around 15 mph until 1200, then north. Mixing Height.......1600-3600 ft agl until 1200, then 4600-6600 ft agl. Smoke dispersal.....Poor to fair. .Forecast days 3 through 7...... .SATURDAY NIGHT...Mostly clear. Lows in the lower 50s. Northeast winds around 10 mph. .SUNDAY...Mostly cloudy. Isolated showers and thunderstorms. Lows in the mid 50s. Highs in the upper 70s. East winds around 10 mph. .MONDAY...Mostly cloudy with scattered showers and thunderstorms. Lows in the lower 50s. Highs in the mid 70s. Winds generally less than 10 mph. .TUESDAY...Mostly cloudy. Scattered showers and isolated thunderstorms. Lows in the lower 50s. Highs in the mid 70s. Winds generally less than 10 mph. .WEDNESDAY...Mostly cloudy. Scattered showers and isolated thunderstorms. Lows in the mid 50s. Highs in the upper 70s. .THURSDAY...Partly cloudy. Isolated showers in the morning, then scattered showers and isolated thunderstorms in the afternoon. Highs in the mid 70s. $$ WYZ283-222115- Upper Wind River Basin/Wind River Basin- Including the cities of Crowheart, Lander, Riverton, and Shoshoni 111 PM MDT Thu Aug 21 2025 .TONIGHT... Sky/weather.........Mostly cloudy then becoming partly cloudy. Isolated dry thunderstorms early in the evening. Isolated showers early in the evening. Isolated thunderstorms late in the evening. Some thunderstorms may produce gusty winds early in the evening. Some thunderstorms may produce gusty winds 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........75-81 percent. 24 hr trend......31 percent wetter. Humidity recovery...Excellent. 20-foot winds.......Southeast winds around 10 mph until 2100, then northeast. Gusts up to 20 mph. Ridge top winds.....East around 15 mph until 2400, then north. Chc of wetting rain.Zero percent. Transport winds.....East around 15 mph. Mixing Height.......2000-4000 ft agl until 2400, then 600-800 ft agl. Smoke dispersal.....Poor to fair. .FRIDAY... Sky/weather.........Partly cloudy. Isolated showers and thunderstorms in the afternoon. Some thunderstorms may produce gusty winds in the afternoon. Chance of precipitation 20 percent. Chance of thunder...10 percent. Max temperature.....78-83. 24 hr trend......4 degrees cooler. Min humidity........31-37 percent. 24 hr trend......8 percent wetter. 20-foot winds.......Upslope/upvalley 5-9 mph until 0900, then northeast 10 to 15 mph with gusts to around 30 mph. Ridge top winds.....Northeast 10 to 15 mph. Chc of wetting rain.Zero percent. Transport winds.....Northeast 10 to 15 mph. Mixing Height.......1200-3200 ft agl until 1200, then 4400-6400 ft agl. Smoke dispersal.....Poor until 1200, then good. .FRIDAY NIGHT... Sky/weather.........Partly cloudy. Slight chance of thunderstorms in the evening. Slight chance of showers until early morning. Chance of precipitation 20 percent. Chance of thunder...20 percent. Min temperature.....52-57. 24 hr trend......1 degree cooler. Max humidity........79-85 percent. 24 hr trend......3 percent wetter. Humidity recovery...Excellent. 20-foot winds.......Northeast winds 10 to 15 mph with gusts to around 30 mph. Ridge top winds.....Northeast 15 to 20 mph. Chc of wetting rain.Zero percent. Transport winds.....Northeast 15 to 20 mph. Mixing Height.......2600-4600 ft agl until 2400, then 1000-1800 ft agl. Smoke dispersal.....Poor to fair. .SATURDAY... Sky/weather.........Mostly sunny. Isolated showers and thunderstorms in the afternoon. Some thunderstorms may produce gusty winds in the afternoon. Chance of precipitation 20 percent. Chance of thunder...10 percent. Max temperature.....78-83. 24 hr trend......1 degree cooler. Min humidity........30-36 percent. 24 hr trend......Unchanged. 20-foot winds.......Upslope/upvalley 5-9 mph until 1500, then northeast around 10 mph. Gusts up to 20 mph. Ridge top winds.....East 10 to 15 mph. Chc of wetting rain.Zero percent. Transport winds.....East 10 to 15 mph. Mixing Height.......1400-3400 ft agl until 1200, then 4200-6200 ft agl. Smoke dispersal.....Poor to fair. .Forecast days 3 through 7...... .SATURDAY NIGHT...Partly cloudy. Lows in the mid 50s. Northeast winds around 10 mph. .SUNDAY...Mostly cloudy. Scattered showers and isolated thunderstorms. Lows in the mid 50s. Highs in the upper 70s. East winds around 10 mph. .MONDAY...Mostly cloudy with numerous showers and scattered thunderstorms. Lows in the lower 50s. Highs in the mid 70s. Winds generally less than 10 mph. .TUESDAY...Mostly cloudy. Scattered showers and isolated thunderstorms. Lows in the lower 50s. Highs in the mid 70s. Winds generally less than 10 mph. .WEDNESDAY THROUGH THURSDAY...Partly cloudy with scattered showers and isolated thunderstorms. Lows in the lower 50s. Highs 73 to 78. $$ WYZ285-222115- South Bighorn Mountains- 111 PM MDT Thu Aug 21 2025 .TONIGHT... Sky/weather.........Mostly cloudy then becoming partly cloudy. Haze early in the evening. Isolated showers and thunderstorms in the evening. Some thunderstorms may produce gusty winds in the evening. Chance of precipitation 20 percent. Chance of thunder...20 percent. Min temperature.....53-58. 24 hr trend......6 degrees cooler. Max humidity........74-80 percent. 24 hr trend......33 percent wetter. Humidity recovery...Excellent. 20-foot winds.......East winds around 10 mph until 0300, then north. Gusts up to 25 mph. Ridge top winds.....Northeast around 15 mph. Chc of wetting rain.Less than 5 percent. Transport winds.....East around 15 mph. Mixing Height.......1000-3000 ft agl until 2400, then 200-600 ft agl. Smoke dispersal.....Poor. .FRIDAY... Sky/weather.........Partly cloudy. Isolated showers and thunderstorms in the late morning and afternoon. Some thunderstorms may produce gusty winds in the late morning and afternoon. Chance of precipitation 20 percent. Chance of thunder...20 percent. Max temperature.....70-75. 24 hr trend......7 degrees cooler. Min humidity........48-54 percent. 24 hr trend......18 percent wetter. 20-foot winds.......Upslope/upvalley 5-9 mph until 0900, then north around 10 mph with gusts to around 30 mph until 1500, then northeast with gusts to around 30 mph. Ridge top winds.....North around 10 mph until 1200, then northeast around 20 mph. Chc of wetting rain.Zero percent until 1200, then 10 percent. Transport winds.....North around 10 mph until 1200, then northeast around 20 mph. Mixing Height.......600-2600 ft agl until 1200, then 3400-5400 ft agl. Smoke dispersal.....Poor to fair. .FRIDAY NIGHT... Sky/weather.........Partly cloudy. Chance of showers and thunderstorms in the evening, then slight chance of showers and thunderstorms after midnight. Chance of precipitation 50 percent. Chance of thunder...40 percent. Min temperature.....50-55. 24 hr trend......3 degrees cooler. Max humidity........74-80 percent. 24 hr trend......1 percent drier. Humidity recovery...Excellent. 20-foot winds.......Northeast winds 10 to 15 mph with gusts to around 30 mph. Ridge top winds.....Northeast 15 to 20 mph. Chc of wetting rain.20 percent until 2400, then zero percent. Transport winds.....Northeast 15 to 20 mph. Mixing Height.......800-2800 ft agl. Smoke dispersal.....Poor. .SATURDAY... Sky/weather.........Partly cloudy then becoming mostly sunny. Chance of thunder...10 percent. Max temperature.....71-76. 24 hr trend......Unchanged. Min humidity........39-45 percent. 24 hr trend......5 percent drier. 20-foot winds.......Upslope/upvalley 5-9 mph until 1500, then northeast around 10 mph with higher gusts. Ridge top winds.....East 10 to 15 mph. Chc of wetting rain.Zero percent. Transport winds.....South around 10 mph until 1200, then northwest. Mixing Height.......1000-3000 ft agl until 1200, then 4200-6200 ft agl. Smoke dispersal.....Poor to fair. .Forecast days 3 through 7...... .SATURDAY NIGHT...Mostly clear. Lows in the lower 50s. Northeast winds around 10 mph. .SUNDAY...Mostly cloudy. Isolated showers and thunderstorms. Lows in the lower 50s. Highs around 70. East winds around 10 mph. .MONDAY...Mostly cloudy with scattered showers and isolated thunderstorms. Lows in the lower 50s. Highs in the upper 60s. Northeast winds around 10 mph. .TUESDAY...Partly cloudy. Scattered showers and isolated thunderstorms. Lows in the lower 50s. Highs around 70. Southeast winds around 10 mph. .WEDNESDAY...Mostly cloudy. Scattered showers and isolated thunderstorms. Lows in the lower 50s. Highs in the lower 70s. .THURSDAY...Partly cloudy. Isolated showers in the morning, then scattered showers and isolated thunderstorms in the afternoon. Highs in the upper 60s. $$ WYZ281-222115- Johnson County/Casper BLM- Including the cities of Buffalo and Kaycee 111 PM MDT Thu Aug 21 2025 .TONIGHT... Sky/weather.........Mostly cloudy then becoming partly cloudy. Isolated showers and thunderstorms in the evening. Isolated showers and thunderstorms after midnight. Some thunderstorms may produce gusty winds in the evening. Some thunderstorms may produce gusty winds after midnight. Chance of precipitation 20 percent. Chance of thunder...20 percent. Min temperature.....54-59. 24 hr trend......6 degrees cooler. Max humidity........85-91 percent. 24 hr trend......27 percent wetter. 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.....North 10 to 15 mph. Chc of wetting rain.Less than 5 percent. Transport winds.....North 10 to 15 mph. Mixing Height.......1400-3400 ft agl until 2400, then 600-800 ft agl. Smoke dispersal.....Poor. .FRIDAY... Sky/weather.........Partly cloudy. Isolated showers and thunderstorms in the late morning and afternoon. Some thunderstorms may produce gusty winds in the late morning and afternoon. Chance of precipitation 20 percent. Chance of thunder...20 percent. Max temperature.....69-74. 24 hr trend......7 degrees cooler. Min humidity........50-56 percent. 24 hr trend......11 percent wetter. 20-foot winds.......Upslope/upvalley 5-9 mph until 0900, then north 10 to 15 mph with gusts to around 30 mph. Ridge top winds.....North 15 to 20 mph. Chc of wetting rain.Less than 5 percent. Transport winds.....North 15 to 20 mph. Mixing Height.......1200-3200 ft agl until 1200, then 4000-5600 ft agl. Smoke dispersal.....Fair to good. .FRIDAY NIGHT... Sky/weather.........Partly cloudy. Chance of showers and thunderstorms in the evening, then slight chance of showers and thunderstorms after midnight. Chance of precipitation 50 percent. Chance of thunder...40 percent. Min temperature.....52-57. 24 hr trend......2 degrees cooler. Max humidity........77-83 percent. 24 hr trend......12 percent drier. Humidity recovery...Excellent. 20-foot winds.......North winds 10 to 15 mph with gusts to around 25 mph until 0300, then downslope/downvalley 4-7 mph. Ridge top winds.....North 10 to 15 mph. Chc of wetting rain.15 percent until 2400, then zero percent. Transport winds.....Northeast 10 to 15 mph. Mixing Height.......2200-4200 ft agl until 2400, then 600-1800 ft agl. Smoke dispersal.....Poor to fair. .SATURDAY... Sky/weather.........Partly cloudy then becoming mostly sunny. Chance of thunder...10 percent. Max temperature.....72-77. 24 hr trend......Unchanged. Min humidity........43-49 percent. 24 hr trend......1 percent drier. 20-foot winds.......Upslope/upvalley 5-9 mph until 1500, then east around 10 mph. Gusts up to 15 mph. Ridge top winds.....East 10 to 15 mph. Chc of wetting rain.Zero percent. Transport winds.....East 10 to 15 mph. Mixing Height.......1400-3400 ft agl until 1200, then 4600-6600 ft agl. Smoke dispersal.....Poor to fair. .Forecast days 3 through 7...... .SATURDAY NIGHT...Partly cloudy. Lows in the mid 50s. Northeast winds around 10 mph. .SUNDAY...Partly cloudy. Isolated showers and thunderstorms. Lows in the mid 50s. Highs in the mid 70s. Northeast winds around 10 mph. .MONDAY...Mostly cloudy with scattered showers and isolated thunderstorms. Lows in the lower 50s. Highs in the mid 70s. Winds generally less than 10 mph. .TUESDAY...Partly cloudy with isolated showers and thunderstorms. Lows in the mid 50s. Highs in the upper 70s. Winds generally less than 10 mph. .WEDNESDAY...Partly cloudy. Isolated showers and thunderstorms. Lows in the mid 50s. Highs around 80. .THURSDAY...Partly cloudy. Isolated showers in the morning, then scattered showers and isolated thunderstorms in the afternoon. Highs in the upper 70s. $$ WYZ282-222115- South Bighorn Basin/Worland BLM- Including the cities of Ten Sleep, Thermopolis, and Worland 111 PM MDT Thu Aug 21 2025 .TONIGHT... Sky/weather.........Partly cloudy. Haze early in the evening. Isolated showers and thunderstorms in the evening. Some thunderstorms may produce gusty winds 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........74-80 percent. 24 hr trend......22 percent wetter. Humidity recovery...Excellent. 20-foot winds.......East winds around 10 mph until 2100, then south until 2400, then west until 0300, then downslope/downvalley 4-7 mph. Gusts up to 15 mph. Ridge top winds.....Southeast around 15 mph until 2400, then west. Chc of wetting rain.Zero percent. Transport winds.....Southeast around 15 mph until 2400, then northwest. Mixing Height.......2200-4200 ft agl until 2400, then 400-800 ft agl. Smoke dispersal.....Poor. .FRIDAY... Sky/weather.........Mostly sunny. Isolated showers and thunderstorms in the afternoon. Some thunderstorms may produce gusty winds in the afternoon. Chance of precipitation 20 percent. Chance of thunder...10 percent. Max temperature.....73-78. 24 hr trend......5 degrees cooler. Min humidity........36-42 percent. 24 hr trend......7 percent wetter. 20-foot winds.......Upslope/upvalley 5-9 mph until 0900, then northwest around 10 mph. Gusts up to 20 mph. Ridge top winds.....Northwest 10 to 15 mph. Chc of wetting rain.Zero percent. Transport winds.....Northwest 10 to 15 mph. Mixing Height.......1000-3000 ft agl until 1200, then 4400-6400 ft agl. Smoke dispersal.....Poor to fair. .FRIDAY NIGHT... Sky/weather.........Partly cloudy. Slight chance of showers and thunderstorms in the evening. Chance of precipitation 20 percent. Chance of thunder...20 percent. Min temperature.....49-54. 24 hr trend......2 degrees cooler. Max humidity........75-81 percent. 24 hr trend......6 percent drier. Humidity recovery...Excellent. 20-foot winds.......North winds 10 to 15 mph until 0300, then downslope/downvalley 4-7 mph. Gusts up to 25 mph. Ridge top winds.....North 10 to 15 mph. Chc of wetting rain.Less than 5 percent. Transport winds.....North 10 to 15 mph. Mixing Height.......2600-4600 ft agl until 2400, then 600-1800 ft agl. Smoke dispersal.....Poor to fair. .SATURDAY... Sky/weather.........Mostly sunny. Isolated showers and thunderstorms in the afternoon. Some thunderstorms may produce gusty winds in the afternoon. Chance of precipitation 20 percent. Chance of thunder...10 percent. Max temperature.....74-79. 24 hr trend......Unchanged. Min humidity........29-35 percent. 24 hr trend......3 percent drier. 20-foot winds.......Upslope/upvalley 5-9 mph until 1500, then north around 10 mph. Gusts up to 15 mph. Ridge top winds.....Southwest around 10 mph until 1200, then northeast. Chc of wetting rain.Zero percent. Transport winds.....South around 10 mph until 1200, then north. Mixing Height.......1400-3400 ft agl until 1200, then 4400-5600 ft agl. Smoke dispersal.....Poor to fair. .Forecast days 3 through 7...... .SATURDAY NIGHT...Partly cloudy. Lows in the mid 50s. North winds around 10 mph. .SUNDAY...Partly cloudy. Isolated showers and thunderstorms. Lows in the upper 50s. Highs in the lower 80s. Winds generally less than 10 mph. .MONDAY...Mostly cloudy with scattered showers and isolated thunderstorms. Lows in the mid 50s. Highs in the upper 70s. Winds generally less than 10 mph. .TUESDAY...Partly cloudy. Scattered showers and isolated thunderstorms. Lows in the mid 50s. Highs in the lower 80s. Winds generally less than 10 mph. .WEDNESDAY THROUGH THURSDAY...Partly cloudy with scattered showers and isolated thunderstorms. Lows in the mid 50s. Highs 77 to 82. $$ WYZ275-222115- North Bighorn Basin/Worland BLM- Including the cities of Greybull, Lovell, and Powell 111 PM MDT Thu Aug 21 2025 .TONIGHT... Sky/weather.........Partly cloudy. Isolated showers and thunderstorms early in the evening. Isolated showers and thunderstorms late in the evening. Some thunderstorms may produce gusty winds early in the evening. Some thunderstorms may produce gusty winds late in the evening. Chance of precipitation 20 percent. Chance of thunder...10 percent. Min temperature.....52-57. 24 hr trend......3 degrees cooler. Max humidity........74-80 percent. 24 hr trend......12 percent wetter. Humidity recovery...Excellent. 20-foot winds.......Northwest winds around 10 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.....North around 15 mph. Mixing Height.......2600-4600 ft agl until 2400, then 400-800 ft agl. Smoke dispersal.....Poor to fair until 2400, then poor. .FRIDAY... Sky/weather.........Mostly sunny. Isolated showers and thunderstorms late in the morning. Some thunderstorms may produce gusty winds late in the morning. Chance of precipitation 20 percent. Chance of thunder...10 percent. Max temperature.....72-77. 24 hr trend......5 degrees cooler. Min humidity........39-45 percent. 24 hr trend......7 percent wetter. 20-foot winds.......Northwest winds 10 to 15 mph. Gusts up to 25 mph until 1200, then 35 mph. Ridge top winds.....Northwest 15 to 20 mph. Chc of wetting rain.Zero percent. Transport winds.....Northwest 15 to 20 mph. Mixing Height.......1000-3000 ft agl until 1200, then 4200-6200 ft agl. Smoke dispersal.....Poor to fair until 1200, then good. .FRIDAY NIGHT... Sky/weather.........Mostly clear. Slight chance of showers and thunderstorms in the evening. Chance of precipitation 20 percent. Chance of thunder...10 percent. Min temperature.....50-55. 24 hr trend......3 degrees cooler. Max humidity........75-81 percent. 24 hr trend......6 percent drier. Humidity recovery...Excellent. 20-foot winds.......North winds 10 to 15 mph with gusts to around 35 mph until 0300, then downslope/downvalley 4-7 mph. Ridge top winds.....Northwest 15 to 20 mph. Chc of wetting rain.Zero percent. Transport winds.....Northwest 15 to 20 mph. Mixing Height.......2000-4000 ft agl until 2400, then 600-1000 ft agl. Smoke dispersal.....Fair to good until 2400, then poor. .SATURDAY... Sky/weather.........Mostly sunny. Chance of thunder...0 percent. Max temperature.....73-78. 24 hr trend......Unchanged. Min humidity........30-36 percent. 24 hr trend......4 percent drier. 20-foot winds.......Upslope/upvalley 5-9 mph until 1500, then north around 10 mph with higher gusts. Ridge top winds.....West around 10 mph until 1200, then northeast. Chc of wetting rain.Zero percent. Transport winds.....Southwest around 10 mph until 1200, then north. Mixing Height.......1200-3200 ft agl until 1200, then 4400-5800 ft agl. Smoke dispersal.....Poor to fair. .Forecast days 3 through 7...... .SATURDAY NIGHT...Mostly clear. Lows in the mid 50s. North winds around 10 mph. .SUNDAY...Partly cloudy. Isolated showers and thunderstorms. Lows in the mid 50s. Highs in the lower 80s. Winds generally less than 10 mph. .MONDAY...Mostly cloudy with isolated showers and thunderstorms. Lows in the mid 50s. Highs around 80. Winds generally less than 10 mph. .TUESDAY...Partly cloudy with isolated showers and thunderstorms. Lows in the mid 50s. Highs in the lower 80s. Winds generally less than 10 mph. .WEDNESDAY...Partly cloudy. Isolated showers and thunderstorms. Lows in the upper 50s. Highs in the lower 80s. .THURSDAY...Partly cloudy. Isolated showers in the morning, then scattered showers and isolated thunderstorms in the afternoon. Highs around 80. $$ WYZ276-222115- Cody Foothills- Including the cities of Clark, Cody, and Meeteetse 111 PM MDT Thu Aug 21 2025 .TONIGHT... Sky/weather.........Partly cloudy. Isolated showers and thunderstorms early in the evening. Some thunderstorms may produce gusty winds early in the evening. Chance of precipitation 20 percent. Chance of thunder...10 percent. Min temperature.....52-57. 24 hr trend......3 degrees cooler. Max humidity........72-78 percent. 24 hr trend......12 percent wetter. Humidity recovery...Excellent. 20-foot winds.......North winds 10 to 15 mph with gusts to around 25 mph until 2400, then northwest with gusts to around 15 mph. Ridge top winds.....Northwest around 15 mph. Chc of wetting rain.Zero percent. Transport winds.....North around 15 mph. Mixing Height.......2000-4000 ft agl until 2400, then 600-1000 ft agl. Smoke dispersal.....Poor to fair. .FRIDAY... Sky/weather.........Mostly sunny. Isolated showers and thunderstorms in the afternoon. Some thunderstorms may produce gusty winds in the afternoon. Chance of precipitation 20 percent. Chance of thunder...10 percent. Max temperature.....70-75. 24 hr trend......6 degrees cooler. Min humidity........39-45 percent. 24 hr trend......6 percent wetter. 20-foot winds.......North winds 10 to 15 mph until 1200, then around 20 mph. Gusts up to 35 mph. Ridge top winds.....North around 20 mph. Chc of wetting rain.Zero percent. Transport winds.....North around 20 mph. Mixing Height.......1200-3200 ft agl until 1200, then 3600-5200 ft agl. Smoke dispersal.....Poor to fair until 1200, then good. .FRIDAY NIGHT... Sky/weather.........Mostly clear. Slight chance of showers and thunderstorms early in the evening. Chance of precipitation 20 percent. Chance of thunder...10 percent. Min temperature.....49-54. 24 hr trend......3 degrees cooler. Max humidity........73-79 percent. 24 hr trend......1 percent drier. Humidity recovery...Excellent. 20-foot winds.......Northwest winds 10 to 15 mph with gusts to around 35 mph until 0300, then downslope/downvalley 4-7 mph. Ridge top winds.....North around 20 mph until 2400, then west around 10 mph. Chc of wetting rain.Zero percent. Transport winds.....North around 20 mph until 2400, then northwest around 10 mph. Mixing Height.......1800-3800 ft agl until 2400, then 600-1200 ft agl. Smoke dispersal.....Fair to good until 2400, then poor. .SATURDAY... Sky/weather.........Mostly sunny. Isolated showers and thunderstorms in the afternoon. Some thunderstorms may produce gusty winds in the afternoon. Chance of precipitation 20 percent. Chance of thunder...10 percent. Max temperature.....74-79. 24 hr trend......3 degrees warmer. Min humidity........37-43 percent. 24 hr trend......5 percent drier. 20-foot winds.......Upslope/upvalley 5-9 mph until 1200, then northeast around 10 mph with higher gusts. Ridge top winds.....Northeast 10 to 15 mph. Chc of wetting rain.Zero percent. Transport winds.....Southwest around 10 mph until 1200, then northeast. Mixing Height.......1200-3200 ft agl until 1200, then 3600-5400 ft agl. Smoke dispersal.....Poor to fair. .Forecast days 3 through 7...... .SATURDAY NIGHT...Partly cloudy. Lows in the lower 50s. Northwest winds around 10 mph. .SUNDAY...Mostly cloudy. Isolated showers and thunderstorms. Lows in the mid 50s. Highs in the mid 70s. North winds around 10 mph. .MONDAY THROUGH TUESDAY...Mostly cloudy with scattered showers and isolated thunderstorms. Lows 52 to 57. Highs 73 to 78. Winds generally less than 10 mph. .WEDNESDAY...Mostly cloudy. Scattered showers and isolated thunderstorms. Lows in the mid 50s. Highs in the mid 70s. .THURSDAY...Partly cloudy. Isolated showers in the morning, then scattered showers and isolated thunderstorms in the afternoon. Highs in the mid 70s. $$ WYZ287-222115- Owl Creek Mountains- 111 PM MDT Thu Aug 21 2025 .TONIGHT... Sky/weather.........Mostly cloudy then becoming partly cloudy. Isolated showers and thunderstorms early in the evening. Some thunderstorms may produce gusty winds early in the evening. Chance of precipitation 20 percent. Chance of thunder...20 percent. Min temperature.....54-59. 24 hr trend......4 degrees cooler. Max humidity........69-75 percent. 24 hr trend......23 percent wetter. Humidity recovery...Good. 20-foot winds.......Northwest winds around 10 mph and gusty. Ridge top winds.....Northwest around 15 mph. Chc of wetting rain.Zero percent. Transport winds.....North around 15 mph. Mixing Height.......1400-3400 ft agl until 2400, then 200-600 ft agl. Smoke dispersal.....Poor. .FRIDAY... Sky/weather.........Partly cloudy. Isolated showers and thunderstorms in the afternoon. Some thunderstorms may produce gusty winds in the afternoon. Chance of precipitation 20 percent. Chance of thunder...20 percent. Max temperature.....70-75. 24 hr trend......6 degrees cooler. Min humidity........37-43 percent. 24 hr trend......9 percent wetter. 20-foot winds.......Northwest winds around 10 mph until 1200, then north. Gusts up to 25 mph. Ridge top winds.....North around 15 mph. Chc of wetting rain.Zero percent. Transport winds.....North around 15 mph. Mixing Height.......800-2800 ft agl until 1200, then 3400-5400 ft agl. Smoke dispersal.....Poor to fair. .FRIDAY NIGHT... Sky/weather.........Partly cloudy. Slight chance of showers and thunderstorms in the evening. Chance of precipitation 20 percent. Chance of thunder...20 percent. Min temperature.....51-56. 24 hr trend......2 degrees cooler. Max humidity........67-73 percent. 24 hr trend......1 percent drier. Humidity recovery...Good. 20-foot winds.......North winds 10 to 15 mph until 0300, then downslope/downvalley 4-7 mph. Gusts up to 30 mph. Ridge top winds.....North 15 to 20 mph. Chc of wetting rain.Zero percent. Transport winds.....Northwest 15 to 20 mph. Mixing Height.......1800-3800 ft agl until 2400, then 400-1200 ft agl. Smoke dispersal.....Poor. .SATURDAY... Sky/weather.........Mostly sunny. Isolated showers and thunderstorms in the afternoon. Some thunderstorms may produce gusty winds in the afternoon. Chance of precipitation 20 percent. Chance of thunder...10 percent. Max temperature.....71-76. 24 hr trend......1 degree warmer. Min humidity........34-40 percent. 24 hr trend......4 percent drier. 20-foot winds.......Upslope/upvalley 5-9 mph until 1200, then east around 10 mph. Gusts up to 15 mph. Ridge top winds.....Southeast 10 to 15 mph. Chc of wetting rain.Zero percent. Transport winds.....South around 10 mph until 1200, then east. Mixing Height.......800-2800 ft agl until 1200, then 3400-5400 ft agl. Smoke dispersal.....Poor to fair. .Forecast days 3 through 7...... .SATURDAY NIGHT...Partly cloudy. Lows in the mid 50s. North winds around 10 mph. .SUNDAY...Mostly cloudy. Scattered showers and isolated thunderstorms. Lows in the mid 50s. Highs in the mid 70s. Winds generally less than 10 mph. .MONDAY...Mostly cloudy with numerous showers and scattered thunderstorms. Lows in the mid 50s. Highs in the lower 70s. Winds generally less than 10 mph. .TUESDAY...Mostly cloudy. Scattered showers and isolated thunderstorms. Lows in the mid 50s. Highs in the lower 70s. Winds generally less than 10 mph. .WEDNESDAY...Mostly cloudy. Scattered showers and isolated thunderstorms. Lows in the mid 50s. Highs in the lower 70s. .THURSDAY...Partly cloudy. Scattered showers in the morning, then scattered showers and isolated thunderstorms in the afternoon. Highs in the upper 60s. $$ WYZ286-222115- Absaroka Mountains/North Shoshone NF- Including the city of Pahaska 111 PM MDT Thu Aug 21 2025 .TONIGHT... Sky/weather.........Partly cloudy. Isolated showers and thunderstorms early in the evening. Some thunderstorms may produce gusty winds early in the evening. Chance of precipitation 20 percent. Chance of thunder...10 percent. Min temperature.....47-52. 24 hr trend......2 degrees cooler. Max humidity........78-84 percent. 24 hr trend......17 percent wetter. Humidity recovery...Excellent. 20-foot winds.......Southeast winds around 10 mph until 2100, then north until 2400, then downslope/downvalley 4-7 mph. Gusts up to 20 mph. Ridge top winds.....East around 15 mph until 2400, then west. Chc of wetting rain.Zero percent. Transport winds.....Southeast 10 to 15 mph. Mixing Height.......2200-4200 ft agl until 2400, then 400-1000 ft agl. Smoke dispersal.....Poor. .FRIDAY... Sky/weather.........Mostly sunny then becoming partly cloudy. Isolated showers and thunderstorms in the afternoon. Some thunderstorms may produce gusty winds in the afternoon. Chance of precipitation 20 percent. Chance of thunder...20 percent. Max temperature.....65-70. 24 hr trend......4 degrees cooler. Min humidity........37-43 percent. 24 hr trend......8 percent wetter. 20-foot winds.......Upslope/upvalley 5-9 mph until 0900, then east 10 to 15 mph with gusts to around 25 mph. Ridge top winds.....East around 10 mph until 1200, then around 20 mph. Chc of wetting rain.Zero percent. Transport winds.....Southeast around 10 mph until 1200, then northwest around 20 mph. Mixing Height.......1400-3400 ft agl until 1200, then 4600-6600 ft agl. Smoke dispersal.....Poor until 1200, then good. .FRIDAY NIGHT... Sky/weather.........Partly cloudy. Slight chance of thunderstorms in the evening. Slight chance of showers through the night. Chance of precipitation 20 percent. Chance of thunder...10 percent. Min temperature.....44-49. 24 hr trend......2 degrees cooler. Max humidity........77-83 percent. 24 hr trend......7 percent wetter. Humidity recovery...Excellent. 20-foot winds.......East winds 10 to 15 mph with gusts to around 25 mph until 2400, then downslope/downvalley 4-7 mph. Ridge top winds.....East around 15 mph until 2400, then southeast. Chc of wetting rain.Zero percent. Transport winds.....East around 15 mph until 2400, then south. Mixing Height.......1600-3600 ft agl until 2400, then 400-1200 ft agl. Smoke dispersal.....Poor. .SATURDAY... Sky/weather.........Partly cloudy then becoming mostly sunny. Isolated showers and thunderstorms in the afternoon. Some thunderstorms may produce gusty winds in the afternoon. Chance of precipitation 20 percent. Chance of thunder...10 percent. Max temperature.....68-73. 24 hr trend......2 degrees warmer. Min humidity........33-39 percent. 24 hr trend......8 percent drier. 20-foot winds.......Upslope/upvalley 5-9 mph until 1200, then east 10 to 15 mph with gusts to around 25 mph. Ridge top winds.....South around 10 mph until 1200, then east. Chc of wetting rain.Zero percent. Transport winds.....Southwest around 10 mph until 1200, then west. Mixing Height.......1800-3800 ft agl until 1200, then 6000-8000 ft agl. Smoke dispersal.....Poor until 1200, then good to very good. .Forecast days 3 through 7...... .SATURDAY NIGHT...Partly cloudy. Lows in the mid 40s. Winds generally less than 10 mph. .SUNDAY...Mostly cloudy. Isolated showers and thunderstorms. Lows in the upper 40s. Highs in the upper 60s. East winds around 10 mph. .MONDAY...Mostly cloudy with numerous showers and scattered thunderstorms. Lows in the mid 40s. Highs in the lower 60s. Winds generally less than 10 mph. .TUESDAY...Mostly cloudy with scattered showers and thunderstorms. Lows in the upper 40s. Highs in the mid 60s. Winds generally less than 10 mph. .WEDNESDAY...Mostly cloudy with scattered showers and thunderstorms. Lows in the upper 40s. Highs in the mid 60s. .THURSDAY...Mostly cloudy. Scattered showers in the morning, then numerous showers and scattered thunderstorms in the afternoon. Highs in the lower 60s. $$ WYZ140-222115- Yellowstone National Park- Including the cities of Lake, Mammoth, and Old Faithful 111 PM MDT Thu Aug 21 2025 .TONIGHT... Sky/weather.........Partly cloudy. Haze in the evening. Chance of thunder...0 percent. Min temperature.....42-47. 24 hr trend......Unchanged. Max humidity........73-79 percent. 24 hr trend......7 percent wetter. Humidity recovery...Excellent. 20-foot winds.......West winds around 10 mph until 2100, then downslope/downvalley 4-7 mph. Gusts up to 15 mph. Ridge top winds.....Northwest around 15 mph until 2400, then east. Chc of wetting rain.Zero percent. Transport winds.....Northwest around 15 mph until 2400, then east. Mixing Height.......4200-6200 ft agl until 2400, then 400-800 ft agl. Smoke dispersal.....Good until 2400, then poor. .FRIDAY... Sky/weather.........Mostly sunny. Haze late in the afternoon. Chance of thunder...0 percent. Max temperature.....73-78. 24 hr trend......1 degree cooler. Min humidity........22-28 percent. 24 hr trend......2 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.....Northeast around 10 mph until 1200, then northwest. Chc of wetting rain.Zero percent. Transport winds.....East around 10 mph until 1200, then west. Mixing Height.......1800-3800 ft agl until 1200, then 7200-9200 ft agl. Smoke dispersal.....Poor until 1200, then good to very good. .FRIDAY NIGHT... Sky/weather.........Mostly clear. Haze early in the evening. Haze early in the morning. Chance of thunder...0 percent. Min temperature.....42-47. 24 hr trend......2 degrees cooler. Max humidity........80-86 percent. 24 hr trend......6 percent wetter. Humidity recovery...Excellent. 20-foot winds.......Northeast winds around 10 mph until 2400, then east until 0300, then downslope/downvalley 4-7 mph. Gusts up to 20 mph. Ridge top winds.....Northeast 10 to 15 mph. Chc of wetting rain.Zero percent. Transport winds.....East 10 to 15 mph. Mixing Height.......3400-5400 ft agl until 2400, then 400-800 ft agl. Smoke dispersal.....Fair to good until 2400, then poor. .SATURDAY... Sky/weather.........Mostly sunny. Chance of thunder...0 percent. Max temperature.....75-80. 24 hr trend......1 degree warmer. Min humidity........22-28 percent. 24 hr trend......2 percent drier. 20-foot winds.......Upslope/upvalley 5-9 mph until 1500, then northwest around 10 mph. Gusts up to 20 mph. Ridge top winds.....Southeast around 10 mph until 1200, then west. Chc of wetting rain.Zero percent. Transport winds.....South around 10 mph until 1200, then west. Mixing Height.......2000-4000 ft agl until 1200, then 8000-10000 ft agl. Smoke dispersal.....Poor until 1200, then good to very good. .Forecast days 3 through 7...... .SATURDAY NIGHT...Partly cloudy. Lows in the lower 40s. Winds generally less than 10 mph. .SUNDAY...Mostly cloudy. Isolated showers and thunderstorms. Lows in the upper 40s. Highs in the mid 70s. Winds generally less than 10 mph. .MONDAY...Mostly cloudy with scattered showers and thunderstorms. Lows in the lower 40s. Highs in the upper 60s. Winds generally less than 10 mph. .TUESDAY...Mostly cloudy with scattered showers and isolated thunderstorms. Lows in the mid 40s. Highs in the upper 60s. Winds generally less than 10 mph. .WEDNESDAY...Mostly cloudy with scattered showers and isolated thunderstorms. Lows in the mid 40s. Highs in the upper 60s. .THURSDAY...Partly cloudy. Scattered showers in the morning, then scattered showers and thunderstorms in the afternoon. Highs in the mid 60s. $$ WYZ415-222115- North Zone Bridger Teton NF and Grand Teton NP- Including the cities of Jackson and Moran 111 PM MDT Thu Aug 21 2025 .TONIGHT... Sky/weather.........Partly cloudy. Haze early in the evening. Haze in the late evening and early morning. Chance of thunder...0 percent. Min temperature.....45-50. 24 hr trend......1 degree cooler. Max humidity........63-69 percent. 24 hr trend......4 percent wetter. Humidity recovery...Good. 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 around 10 mph until 2400, then southeast. Chc of wetting rain.Zero percent. Transport winds.....West around 15 mph until 2400, then southeast. Mixing Height.......4200-6200 ft agl until 2400, then 400-1000 ft agl. Smoke dispersal.....Good until 2400, then poor. .FRIDAY... Sky/weather.........Mostly sunny. Chance of thunder...0 percent. Max temperature.....76-81. 24 hr trend......Unchanged. Min humidity........17-23 percent. 24 hr trend......3 percent drier. 20-foot winds.......Upslope/upvalley 5-9 mph until 1200, then west around 10 mph. Gusts up to 20 mph. Ridge top winds.....Southeast around 10 mph until 1200, then west. Chc of wetting rain.Zero percent. Transport winds.....South around 10 mph until 1200, then west around 20 mph. Mixing Height.......2000-4000 ft agl until 1200, then 8400-10400 ft agl. Smoke dispersal.....Poor to fair until 1200, then very good to excellent. .FRIDAY NIGHT... Sky/weather.........Mostly clear. Chance of thunder...0 percent. Min temperature.....43-48. 24 hr trend......1 degree cooler. Max humidity........76-82 percent. 24 hr trend......20 percent wetter. Humidity recovery...Excellent. 20-foot winds.......Northwest winds around 10 mph until 2100, then east. Gusts up to 15 mph. Ridge top winds.....North around 15 mph until 2400, then east. Chc of wetting rain.Zero percent. Transport winds.....Northwest around 15 mph until 2400, then east. Mixing Height.......4200-6200 ft agl until 2400, then 400-1000 ft agl. Smoke dispersal.....Good until 2400, then poor. .SATURDAY... Sky/weather.........Mostly sunny. Isolated showers and thunderstorms in the afternoon. Some thunderstorms may produce gusty winds in the afternoon. Chance of precipitation 20 percent. Chance of thunder...10 percent. Max temperature.....77-82. 24 hr trend......Unchanged. Min humidity........17-23 percent. 24 hr trend......1 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.....Southeast around 10 mph until 1200, then west. Chc of wetting rain.Zero percent. Transport winds.....South around 10 mph until 1200, then west. Mixing Height.......2000-4000 ft agl until 1200, then 8400-10400 ft agl. Smoke dispersal.....Poor until 1200, then good to very good. .Forecast days 3 through 7...... .SATURDAY NIGHT...Partly cloudy. Lows in the mid 40s. Winds generally less than 10 mph. .SUNDAY...Mostly cloudy. Scattered showers and isolated thunderstorms. Lows in the upper 40s. Highs in the mid 70s. Winds generally less than 10 mph. .MONDAY THROUGH TUESDAY...Mostly cloudy with numerous showers and scattered thunderstorms. Lows in the mid 40s. Highs in the upper 60s. Winds generally less than 10 mph. .WEDNESDAY THROUGH THURSDAY...Mostly cloudy with numerous showers and scattered thunderstorms. Lows in the mid 40s. Highs 62 to 67. $$ WYZ416-222115- West Wind River Mountains/East Zone Bridger Teton NF- 111 PM MDT Thu Aug 21 2025 .TONIGHT... Sky/weather.........Partly cloudy. Isolated showers and thunderstorms early in the evening. Haze late in the evening. Some thunderstorms may produce gusty winds early in the evening. Chance of precipitation 20 percent. Chance of thunder...10 percent. Min temperature.....45-50. 24 hr trend......3 degrees cooler. Max humidity........63-69 percent. 24 hr trend......3 percent wetter. Humidity recovery...Good. 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 around 10 mph until 2400, then north. Chc of wetting rain.Zero percent. Transport winds.....Southwest around 10 mph until 2400, then east. Mixing Height.......2800-4800 ft agl until 2400, then 400-800 ft agl. Smoke dispersal.....Fair to good until 2400, then poor. .FRIDAY... Sky/weather.........Partly cloudy. Haze early in the morning. Isolated showers and thunderstorms in the afternoon. Some thunderstorms may produce gusty winds in the afternoon. Chance of precipitation 20 percent. Chance of thunder...10 percent. Max temperature.....71-76. 24 hr trend......Unchanged. Min humidity........22-28 percent. 24 hr trend......7 percent drier. 20-foot winds.......Upslope/upvalley 5-9 mph until 1200, then west around 10 mph. Gusts up to 20 mph. Ridge top winds.....Southwest around 10 mph until 1200, then west. Chc of wetting rain.Zero percent. Transport winds.....West around 10 mph until 1200, then around 20 mph. Mixing Height.......2600-4600 ft agl until 1200, then 8600-10600 ft agl. Smoke dispersal.....Poor to fair until 1200, then excellent. .FRIDAY NIGHT... Sky/weather.........Mostly clear. Slight chance of showers and thunderstorms early in the evening. Slight chance of showers and thunderstorms early in the evening. Chance of precipitation 20 percent. Chance of thunder...10 percent. Min temperature.....43-48. 24 hr trend......2 degrees cooler. Max humidity........79-85 percent. 24 hr trend......21 percent wetter. Humidity recovery...Excellent. 20-foot winds.......Northwest winds around 10 mph until 2100, then northeast until 0300, then downslope/downvalley 4-7 mph. Gusts up to 25 mph. Ridge top winds.....Northeast around 15 mph. Chc of wetting rain.Zero percent. Transport winds.....Northeast around 15 mph. Mixing Height.......4400-6400 ft agl until 2400, then 400-800 ft agl. Smoke dispersal.....Good until 2400, then poor. .SATURDAY... Sky/weather.........Mostly sunny. Isolated showers and thunderstorms in the afternoon. Some thunderstorms may produce gusty winds in the afternoon. Chance of precipitation 20 percent. Chance of thunder...10 percent. Max temperature.....71-76. 24 hr trend......1 degree cooler. Min humidity........23-29 percent. 24 hr trend......2 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.....Southeast around 10 mph until 1200, then west. Chc of wetting rain.Zero percent. Transport winds.....West 10 to 15 mph. Mixing Height.......2000-4000 ft agl until 1200, then 7200-9200 ft agl. Smoke dispersal.....Poor to fair until 1200, then good to very good. .Forecast days 3 through 7...... .SATURDAY NIGHT...Partly cloudy. Lows in the mid 40s. Northeast winds around 10 mph. .SUNDAY...Mostly cloudy. Scattered showers and thunderstorms. Lows in the upper 40s. Highs around 70. Winds generally less than 10 mph. .MONDAY...Mostly cloudy with showers and scattered thunderstorms. Lows in the lower 40s. Highs in the lower 60s. Winds generally less than 10 mph. .TUESDAY...Mostly cloudy with numerous showers and scattered thunderstorms. Lows in the lower 40s. Highs in the lower 60s. Winds generally less than 10 mph. .WEDNESDAY THROUGH THURSDAY...Mostly cloudy with numerous showers and scattered thunderstorms. Lows in the lower 40s. Highs 58 to 63. $$ WYZ288-222115- East Wind River Mountains/South Shoshone NF- Including the cities of Dubois and South Pass 111 PM MDT Thu Aug 21 2025 .TONIGHT... Sky/weather.........Mostly cloudy then becoming partly cloudy. Isolated showers early in the evening. Isolated dry thunderstorms early in the evening. Some thunderstorms may produce gusty winds early in the evening. Chance of precipitation 20 percent. Chance of thunder...20 percent. Min temperature.....49-54. 24 hr trend......5 degrees cooler. Max humidity........70-76 percent. 24 hr trend......18 percent wetter. Humidity recovery...Excellent. 20-foot winds.......Southwest winds around 10 mph until 2100, then downslope/downvalley 4-7 mph until 0300, then west around 10 mph. Gusts up to 15 mph. Ridge top winds.....West 10 to 15 mph. Chc of wetting rain.Zero percent. Transport winds.....West 10 to 15 mph. Mixing Height.......2000-4000 ft agl until 2400, then 400-800 ft agl. Smoke dispersal.....Poor. .FRIDAY... Sky/weather.........Partly cloudy. Haze early in the morning. Isolated showers and thunderstorms in the afternoon. Some thunderstorms may produce gusty winds in the afternoon. Chance of precipitation 20 percent. Chance of thunder...20 percent. Max temperature.....69-74. 24 hr trend......3 degrees cooler. Min humidity........30-36 percent. 24 hr trend......4 percent wetter. 20-foot winds.......Upslope/upvalley 5-9 mph until 0900, then northeast around 10 mph. Gusts up to 20 mph. Ridge top winds.....Northwest around 10 mph until 1200, then northeast. Chc of wetting rain.Zero percent. Transport winds.....West 10 to 15 mph. Mixing Height.......1600-3600 ft agl until 1200, then 5800-7800 ft agl. Smoke dispersal.....Poor to fair until 1200, then good to very good. .FRIDAY NIGHT... Sky/weather.........Partly cloudy. Slight chance of thunderstorms in the evening. Slight chance of showers until early morning. Chance of precipitation 20 percent. Chance of thunder...20 percent. Min temperature.....46-51. 24 hr trend......2 degrees cooler. Max humidity........85-91 percent. 24 hr trend......19 percent wetter. Humidity recovery...Excellent. 20-foot winds.......Northeast winds around 10 mph with gusts to around 25 mph. Ridge top winds.....Northeast around 15 mph. Chc of wetting rain.Zero percent. Transport winds.....East around 15 mph. Mixing Height.......2200-4200 ft agl until 2400, then 400-1200 ft agl. Smoke dispersal.....Poor to fair. .SATURDAY... Sky/weather.........Partly cloudy then becoming mostly sunny. Isolated showers and thunderstorms in the afternoon. Some thunderstorms may produce gusty winds in the afternoon. Chance of precipitation 20 percent. Chance of thunder...10 percent. Max temperature.....69-74. 24 hr trend......1 degree cooler. Min humidity........26-32 percent. 24 hr trend......Unchanged. 20-foot winds.......Upslope/upvalley 5-9 mph until 1200, then northeast around 10 mph with gusts to around 25 mph. Ridge top winds.....East 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 6000-8000 ft agl. Smoke dispersal.....Poor until 1200, then good. .Forecast days 3 through 7...... .SATURDAY NIGHT...Partly cloudy. Lows in the upper 40s. Northeast winds around 10 mph. .SUNDAY...Mostly cloudy. Scattered showers and thunderstorms. Lows around 50. Highs in the upper 60s. Northeast winds around 10 mph. .MONDAY...Mostly cloudy with showers and scattered thunderstorms. Lows in the upper 40s. Highs in the lower 60s. Winds generally less than 10 mph. .TUESDAY...Mostly cloudy with numerous showers and scattered thunderstorms. Lows in the upper 40s. Highs in the lower 60s. Winds generally less than 10 mph. .WEDNESDAY...Mostly cloudy with numerous showers and isolated thunderstorms. Lows in the upper 40s. Highs in the mid 60s. .THURSDAY...Partly cloudy. Scattered showers in the morning, then numerous showers and scattered thunderstorms in the afternoon. Highs in the lower 60s. $$ WYZ414-222115- Salt and Wyoming Ranges/West Zone Bridger Teton NF- Including the city of Afton 111 PM MDT Thu Aug 21 2025 .TONIGHT... Sky/weather.........Partly cloudy. Haze until early morning. Chance of thunder...0 percent. Min temperature.....46-51. 24 hr trend......1 degree cooler. Max humidity........62-68 percent. 24 hr trend......9 percent drier. Humidity recovery...Good. 20-foot winds.......West winds around 10 mph until 2100, then downslope/downvalley 4-7 mph. Gusts up to 15 mph. Ridge top winds.....West around 10 mph. Chc of wetting rain.Zero percent. Transport winds.....Northwest around 10 mph until 2400, then east. Mixing Height.......4000-6000 ft agl until 2400, then 400-1000 ft agl. Smoke dispersal.....Fair to good until 2400, then poor. .FRIDAY... Sky/weather.........Partly cloudy. Chance of thunder...0 percent. Max temperature.....78-83. 24 hr trend......1 degree warmer. Min humidity........14-20 percent. 24 hr trend......6 percent drier. 20-foot winds.......Upslope/upvalley 5-9 mph until 1200, then west around 10 mph with higher gusts. Ridge top winds.....West 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 9400-11400 ft agl. Smoke dispersal.....Poor to fair until 1200, then very good to excellent. .FRIDAY NIGHT... Sky/weather.........Mostly clear. Chance of thunder...0 percent. Min temperature.....44-49. 24 hr trend......3 degrees cooler. Max humidity........74-80 percent. 24 hr trend......29 percent wetter. Humidity recovery...Excellent. 20-foot winds.......Northwest winds around 10 mph until 2100, then downslope/downvalley 4-7 mph until 2400, then southeast around 10 mph. Gusts up to 20 mph. Ridge top winds.....North around 10 mph until 2400, then southeast. Chc of wetting rain.Zero percent. Transport winds.....Northwest around 10 mph until 2400, then southeast. Mixing Height.......4600-6600 ft agl until 2400, then 400-1000 ft agl. Smoke dispersal.....Good until 2400, then poor. .SATURDAY... Sky/weather.........Mostly sunny. Chance of thunder...0 percent. Max temperature.....78-83. 24 hr trend......Unchanged. Min humidity........14-20 percent. 24 hr trend......Unchanged. 20-foot winds.......Southeast winds around 10 mph and gusty until 0900, then upslope/upvalley 5-9 mph until 1200, then west around 10 mph with gusts to around 25 mph. Ridge top winds.....Southeast around 10 mph until 1200, then west. Chc of wetting rain.Zero percent. Transport winds.....South around 10 mph until 1200, then west. Mixing Height.......2400-4400 ft agl until 1200, then 8800-10800 ft agl. Smoke dispersal.....Poor to fair until 1200, then very good. .Forecast days 3 through 7...... .SATURDAY NIGHT...Partly cloudy. Lows around 50. Winds generally less than 10 mph. .SUNDAY...Mostly cloudy with scattered showers and thunderstorms. Lows around 50. Highs in the mid 70s. Winds generally less than 10 mph. .MONDAY...Mostly cloudy with showers and scattered thunderstorms. Lows in the upper 40s. Highs in the upper 60s. Winds generally less than 10 mph. .TUESDAY...Mostly cloudy with numerous showers and scattered thunderstorms. Lows in the upper 40s. Highs in the upper 60s. Winds generally less than 10 mph. .WEDNESDAY...Mostly cloudy with numerous showers and scattered thunderstorms. Lows in the upper 40s. Highs in the mid 60s. .THURSDAY...Partly cloudy. Scattered showers in the morning, then numerous showers and scattered thunderstorms in the afternoon. Highs in the lower 60s. $$ WYZ277>279-222115- 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 111 PM MDT Thu Aug 21 2025 .TONIGHT... Sky/weather.........Partly cloudy. Isolated showers and thunderstorms early in the evening. Some thunderstorms may produce gusty winds early in the evening. Chance of precipitation 20 percent. Chance of thunder...10 percent. Min temperature.....49-54. 24 hr trend......3 degrees cooler. Max humidity........62-68 percent. 24 hr trend......24 percent wetter. Humidity recovery...Good. 20-foot winds.......West winds around 10 mph with gusts to around 25 mph until 2100, then northeast with gusts to around 25 mph until 2400, then downslope/downvalley 4-7 mph. Ridge top winds.....West around 15 mph until 2400, then north. Chc of wetting rain.Zero percent. Transport winds.....West around 15 mph until 2400, then northeast. Mixing Height.......2400-4400 ft agl until 2400, then 400-600 ft agl. Smoke dispersal.....Poor to fair until 2400, then poor. .FRIDAY... Sky/weather.........Partly cloudy. Isolated showers and thunderstorms in the afternoon. Some thunderstorms may produce gusty winds in the afternoon. Chance of precipitation 20 percent. Chance of thunder...10 percent. Max temperature.....77-82. 24 hr trend......Unchanged. Min humidity........21-27 percent. 24 hr trend......2 percent drier. 20-foot winds.......Upslope/upvalley 5-9 mph until 1500, then west around 10 mph with gusts to around 30 mph. Ridge top winds.....Northeast around 10 mph until 1200, then northwest. Chc of wetting rain.Zero percent. Transport winds.....Northeast around 10 mph until 1200, then west. Mixing Height.......1200-3200 ft agl until 1200, then 8200-10200 ft agl. Smoke dispersal.....Poor until 1200, then very good. .FRIDAY NIGHT... Sky/weather.........Partly cloudy. Slight chance of showers and thunderstorms early in the evening. Chance of precipitation 20 percent. Chance of thunder...10 percent. Min temperature.....47-52. 24 hr trend......2 degrees cooler. Max humidity........74-80 percent. 24 hr trend......19 percent wetter. Humidity recovery...Excellent. 20-foot winds.......North winds around 15 mph until 2100, then northeast. Gusts up to 25 mph. Ridge top winds.....Northeast 15 to 20 mph. Chc of wetting rain.Zero percent. Transport winds.....Northeast 15 to 20 mph. Mixing Height.......4400-6400 ft agl until 2400, then 400-800 ft agl. Smoke dispersal.....Good until 2400, then poor. .SATURDAY... Sky/weather.........Mostly sunny. Chance of thunder...0 percent. Max temperature.....77-82. 24 hr trend......1 degree cooler. Min humidity........19-25 percent. 24 hr trend......1 percent wetter. 20-foot winds.......Northeast winds around 10 mph until 0900, then upslope/upvalley 5-9 mph until 1500, then northwest around 10 mph. Gusts up to 20 mph. Ridge top winds.....East around 15 mph until 1200, then north. Chc of wetting rain.Zero percent. Transport winds.....East around 15 mph until 1200, then northwest. Mixing Height.......1200-3200 ft agl until 1200, then 6600-8600 ft agl. Smoke dispersal.....Poor until 1200, then good to very good. .Forecast days 3 through 7...... .SATURDAY NIGHT...Partly cloudy. Lows in the lower 50s. Winds generally less than 10 mph. .SUNDAY...Mostly cloudy with scattered showers and thunderstorms. Lows in the lower 50s. Highs around 80. Winds generally less than 10 mph. .MONDAY THROUGH TUESDAY...Mostly cloudy with numerous showers and scattered thunderstorms. Lows in the upper 40s. Highs in the lower 70s. Winds generally less than 10 mph. .WEDNESDAY...Mostly cloudy with numerous showers and scattered thunderstorms. Lows in the upper 40s. Highs in the lower 70s. .THURSDAY...Partly cloudy. Scattered showers in the morning, then numerous showers and scattered thunderstorms in the afternoon. Highs around 70. $$ WYZ289-222115- Granite/Green/Ferris/Rattlesnake Mountains- Including the city of Jeffrey City 111 PM MDT Thu Aug 21 2025 .TONIGHT... Sky/weather.........Mostly cloudy then becoming partly cloudy. Isolated dry thunderstorms early in the evening. Isolated showers in the evening. Isolated thunderstorms late in the evening. Some thunderstorms may produce gusty winds early in the evening. Some thunderstorms may produce gusty winds late in the evening. Chance of precipitation 20 percent. Chance of thunder...20 percent. Min temperature.....54-59. 24 hr trend......5 degrees cooler. Max humidity........72-78 percent. 24 hr trend......36 percent wetter. Humidity recovery...Excellent. 20-foot winds.......West winds around 10 mph until 2100, then northeast. Gusts up to 20 mph. Ridge top winds.....East around 15 mph. Chc of wetting rain.Zero percent. Transport winds.....East around 15 mph. Mixing Height.......1600-3600 ft agl until 2400, then 400-600 ft agl. Smoke dispersal.....Poor. .FRIDAY... Sky/weather.........Partly cloudy. Isolated showers and thunderstorms in the afternoon. Some thunderstorms may produce gusty winds in the afternoon. Chance of precipitation 20 percent. Chance of thunder...10 percent. Max temperature.....75-80. 24 hr trend......4 degrees cooler. Min humidity........25-31 percent. 24 hr trend......7 percent wetter. 20-foot winds.......Northeast winds 10 to 15 mph. Gusts up to 15 mph until 1200, then 30 mph. Ridge top winds.....Northeast around 15 mph. Chc of wetting rain.Zero percent. Transport winds.....North around 15 mph. Mixing Height.......800-2800 ft agl until 1200, then 5800-7800 ft agl. Smoke dispersal.....Poor until 1200, then good to very good. .FRIDAY NIGHT... Sky/weather.........Partly cloudy. Slight chance of thunderstorms in the evening. Slight chance of showers until early morning. Chance of precipitation 20 percent. Chance of thunder...10 percent. Min temperature.....53-58. 24 hr trend......2 degrees cooler. Max humidity........83-89 percent. 24 hr trend......10 percent wetter. Humidity recovery...Excellent. 20-foot winds.......Northeast winds 15 to 20 mph with gusts to around 30 mph. Ridge top winds.....Northeast around 20 mph. Chc of wetting rain.Zero percent. Transport winds.....Northeast around 20 mph. Mixing Height.......3000-5000 ft agl until 2400, then 800-1400 ft agl. Smoke dispersal.....Fair to good until 2400, then poor. .SATURDAY... Sky/weather.........Partly cloudy then becoming mostly sunny. Isolated showers and thunderstorms in the afternoon. Some thunderstorms may produce gusty winds in the afternoon. Chance of precipitation 20 percent. Chance of thunder...10 percent. Max temperature.....74-79. 24 hr trend......1 degree cooler. Min humidity........26-32 percent. 24 hr trend......1 percent drier. 20-foot winds.......Northeast winds around 10 mph until 0900, then upslope/upvalley 5-9 mph until 1500, then north around 10 mph. Gusts up to 20 mph. Ridge top winds.....Northeast around 15 mph. Chc of wetting rain.Zero percent. Transport winds.....East around 15 mph until 1200, then north. Mixing Height.......1000-3000 ft agl until 1200, then 5600-7600 ft agl. Smoke dispersal.....Poor until 1200, then good. .Forecast days 3 through 7...... .SATURDAY NIGHT...Partly cloudy. Lows in the lower 50s. Northeast winds around 10 mph. .SUNDAY...Mostly cloudy. Scattered showers and thunderstorms. Lows in the mid 50s. Highs in the mid 70s. Northeast winds around 10 mph. .MONDAY...Mostly cloudy with numerous showers and scattered thunderstorms. Lows around 50. Highs in the lower 70s. Winds generally less than 10 mph. .TUESDAY...Mostly cloudy. Scattered showers and isolated thunderstorms. Lows in the lower 50s. Highs in the lower 70s. Winds generally less than 10 mph. .WEDNESDAY...Mostly cloudy. Scattered showers and isolated thunderstorms. Lows in the lower 50s. Highs in the lower 70s. .THURSDAY...Partly cloudy. Scattered showers in the morning, then numerous showers and isolated thunderstorms in the afternoon. Highs around 70. $$ WYZ300-222115- Casper Mountain- 111 PM MDT Thu Aug 21 2025 .TONIGHT... Sky/weather.........Mostly cloudy. Scattered showers and thunderstorms in the evening. Some thunderstorms may produce gusty winds early in the evening. Some thunderstorms may produce gusty winds late in the evening. Chance of precipitation 40 percent. Chance of thunder...30 percent. Min temperature.....53-58. 24 hr trend......5 degrees cooler. Max humidity........78-84 percent. 24 hr trend......30 percent wetter. Humidity recovery...Excellent. 20-foot winds.......Northeast winds around 10 mph until 2100, then east until 0300, then downslope/downvalley 4-7 mph. Gusts up to 20 mph. Ridge top winds.....East 10 to 15 mph. Chc of wetting rain.10 percent until 2400, then zero percent. Transport winds.....East around 15 mph until 2400, then southeast. Mixing Height.......400-2400 ft agl. Smoke dispersal.....Poor. .FRIDAY... Sky/weather.........Partly cloudy. Isolated showers late in the morning. Isolated thunderstorms in the afternoon, then scattered showers and thunderstorms late in the afternoon. Some thunderstorms may produce gusty winds in the afternoon. Chance of precipitation 30 percent. Chance of thunder...30 percent. Max temperature.....72-77. 24 hr trend......5 degrees cooler. Min humidity........42-48 percent. 24 hr trend......16 percent wetter. 20-foot winds.......Upslope/upvalley 5-9 mph until 1200, then north 10 to 15 mph with gusts to around 25 mph. Ridge top winds.....Northeast 10 to 15 mph. Chc of wetting rain.Zero percent. Transport winds.....Northeast 10 to 15 mph. Mixing Height.......800-2800 ft agl until 1200, then 4400-6400 ft agl. Smoke dispersal.....Poor until 1200, then good. .FRIDAY NIGHT... Sky/weather.........Partly cloudy. Chance of thunderstorms in the evening. Chance of showers through the night. Slight chance of thunderstorms after midnight. Chance of precipitation 50 percent. Chance of thunder...40 percent. Min temperature.....51-56. 24 hr trend......3 degrees cooler. Max humidity........89-95 percent. 24 hr trend......12 percent wetter. Humidity recovery...Excellent. 20-foot winds.......Northeast winds 10 to 15 mph with gusts to around 25 mph. Ridge top winds.....Northeast around 15 mph. Chc of wetting rain.35 percent until 2400, then 10 percent. Transport winds.....East around 15 mph. Mixing Height.......2000-4000 ft agl until 2400, then 200-800 ft agl. Smoke dispersal.....Poor to fair until 2400, then poor. .SATURDAY... Sky/weather.........Partly cloudy then becoming mostly sunny. Isolated showers through the day. Isolated thunderstorms in the afternoon. Some thunderstorms may produce gusty winds in the afternoon. Chance of precipitation 20 percent. Chance of thunder...20 percent. Max temperature.....71-76. 24 hr trend......2 degrees cooler. Min humidity........44-50 percent. 24 hr trend......Unchanged. 20-foot winds.......Upslope/upvalley 5-9 mph until 1500, then northeast around 10 mph with higher gusts. Ridge top winds.....East around 10 mph. Chc of wetting rain.Zero percent. Transport winds.....Southeast around 10 mph until 1200, then northwest. Mixing Height.......1000-3000 ft agl until 1200, then 5000-7000 ft agl. Smoke dispersal.....Poor to fair. .Forecast days 3 through 7...... .SATURDAY NIGHT...Mostly clear. Lows in the lower 50s. Winds generally less than 10 mph. .SUNDAY...Mostly cloudy. Scattered showers and isolated thunderstorms. Lows in the lower 50s. Highs in the lower 70s. East winds around 10 mph. .MONDAY...Mostly cloudy with numerous showers and scattered thunderstorms. Lows in the upper 40s. Highs in the mid 60s. Winds generally less than 10 mph. .TUESDAY...Mostly cloudy with scattered showers and isolated thunderstorms. Lows in the lower 50s. Highs in the upper 60s. Winds generally less than 10 mph. .WEDNESDAY...Mostly cloudy. Scattered showers and isolated thunderstorms. Lows in the lower 50s. Highs around 70. .THURSDAY...Partly cloudy. Isolated showers in the morning, then scattered showers and isolated thunderstorms in the afternoon. Highs in the upper 60s. $$