


Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS Riverton, WY
Issued by NWS Riverton, WY
690 FNUS55 KRIW 191946 FWFRIW Fire Weather Planning Forecast for Western and Central Wyoming National Weather Service Riverton WY 146 PM MDT Tue Aug 19 2025 .DISCUSSION... ...Yellowstone NP and Teton dispatch areas (includes fire weather zones 140...414...415...and 416)... High pressure over the area continues with very clear skies and patchy smoke, well above normal temperatures, low humidities, and relatively weak winds. Some clouds will increase before sunrise into zone 415 and 140 with light showers possible during the early morning hours on Wednesday. This weak moisture stream will continue into the afternoon to bring isolated showers and thunderstorms to zone 140 and the northern parts of zone 415. West wind will increase over the higher terrain with gusty wind around 20-25 mph. Wednesday will be a couple of degrees warmer for the hottest day of the weak. Though a cool front moves through Wednesday evening, not much change will occur over western WY expected some isolated showers over zones 414 and 416 on Thursday. ...Cody dispatch area (includes fire weather zones 275...276... 282...283...285...286...287...288...and 289)... Mostly clear skies with somewhat light winds and very warm temperatures will continue for the rest of the day. Very dry conditions are yielding only a bit of cumulus with areas of smoke around the Bighorn Basin. High pressures continues to dominate on Wednesday as well after a mild night with poor humidity recovery in the mountain foothill areas. Wednesday will be the hottest day of the week with 100s at some basin locations. Winds will remain on the light side, though gusts could hit 15-20 mph, especially in zones 286 and 276 where some isolated showers and thunderstorms Wednesday afternoon could bring more gusty outflow winds. A cool front will move from southern MT into northern WY late Wednesday evening to drop temps some, increase humidity, and shift the winds to more northerly. Chances of precipitation remain small from Wed night into Thursday. ...Casper dispatch area (includes fire weather zones 277...278... 279...280...281...285...289...and 300)... Most of the dispatch area has clear skies, though partly cloudy skies are over zones 280, 285, and 281. Some light showers are possible over 285 this afternoon, though the chances are quite small. Temperatures remain well above normal into Wednesday, with near record high temps. Humidities are quite quite low with foothill areas seeing poor recovery overnight. Winds should increase somewhat Wednesday afternoon with gusts 15-25 mph for elevated fire weather conditions as high pressure remains over the area. A cool front will move into the dispatch area from the WNW (over SW WY) and north (zone 281) early Thursday morning, to bring more northerly winds and increase the humidities. Clouds will increase, though chances of precipitation remain on the low side (10-15%) overall until Thu evening over zones 280 and 281 where better chances (30-40%) develop. ...Thunderstorms imply strong gusty and erratic winds... WYZ280-202200- Natrona County/Casper BLM- Including the cities of Casper and Midwest 146 PM MDT Tue Aug 19 2025 .THIS AFTERNOON... Sky/weather.........Mostly sunny. Chance of thunder...0 percent. Max temperature.....89-94. 24 hr trend......4 degrees warmer. Min humidity........9-15 percent. 24 hr trend......2 percent drier. 20-foot winds.......Southeast winds around 10 mph and gusty. Ridge top winds.....Southeast around 15 mph. Chc of wetting rain.Zero percent. Transport winds.....South around 15 mph. Mixing Height.......13800-14400 ft agl. Smoke dispersal.....Very good to excellent. .TONIGHT... Sky/weather.........Mostly clear. Chance of thunder...0 percent. Min temperature.....59-64. 24 hr trend......2 degrees cooler. Max humidity........62-68 percent. 24 hr trend......11 percent wetter. Humidity recovery...Good. 20-foot winds.......Southeast winds around 10 mph and gusty. Ridge top winds.....Southeast around 15 mph. Chc of wetting rain.Zero percent. Transport winds.....South around 15 mph. Mixing Height.......6200-8200 ft agl until 2400, then 400-800 ft agl. Smoke dispersal.....Good until 2400, then poor. .WEDNESDAY... Sky/weather.........Mostly sunny. Chance of thunder...0 percent. Max temperature.....92-97. 24 hr trend......3 degrees warmer. Min humidity........7-13 percent. 24 hr trend......2 percent drier. 20-foot winds.......Upslope/upvalley 5-9 mph until 0900, then southwest around 10 mph. Gusts up to 15 mph. Ridge top winds.....Southwest around 15 mph. Chc of wetting rain.Zero percent. Transport winds.....Southwest around 15 mph. Mixing Height.......1800-3800 ft agl until 1200, then 11200-13200 ft agl. Smoke dispersal.....Poor to fair until 1200, then very good to excellent. .WEDNESDAY NIGHT... Sky/weather.........Mostly clear. Chance of thunder...0 percent. Min temperature.....59-64. 24 hr trend......1 degree warmer. Max humidity........48-54 percent. 24 hr trend......12 percent drier. Humidity recovery...Moderate. 20-foot winds.......South winds around 10 mph until 2100, then southeast until 2400, then southwest 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 north. Mixing Height.......6400-8400 ft agl until 2400, then 400-600 ft agl. Smoke dispersal.....Good to very good until 2400, then poor. .THURSDAY... 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...10 percent. Max temperature.....82-87. 24 hr trend......10 degrees cooler. Min humidity........27-33 percent. 24 hr trend......19 percent wetter. 20-foot winds.......North winds 10 to 15 mph until 1200, then northeast. Gusts up to 25 mph. Ridge top winds.....North 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 to fair until 1200, then good. .Forecast days 3 through 7...... .THURSDAY NIGHT...Partly cloudy with chance of showers and slight chance of thunderstorms. Lows in the upper 50s. Northeast winds around 10 mph. .FRIDAY...Partly cloudy with chance of showers and thunderstorms. Lows in the mid 50s. Highs in the upper 70s. Northeast winds around 10 mph. .SATURDAY THROUGH SUNDAY...Partly cloudy with slight chance of showers and thunderstorms. Lows in the mid 50s. Highs 76 to 81. East winds around 10 mph. .MONDAY...Partly cloudy with chance of showers and thunderstorms. Lows in the mid 50s. Highs in the upper 70s. .TUESDAY...Partly cloudy. Slight chance of showers and thunderstorms in the afternoon. Highs around 80. $$ WYZ283-202200- Upper Wind River Basin/Wind River Basin- Including the cities of Crowheart, Lander, Riverton, and Shoshoni 146 PM MDT Tue Aug 19 2025 .THIS AFTERNOON... Sky/weather.........Sunny. Chance of thunder...0 percent. Max temperature.....87-92. 24 hr trend......4 degrees warmer. Min humidity........6-12 percent. 24 hr trend......4 percent drier. 20-foot winds.......Southeast winds around 10 mph and gusty. Ridge top winds.....Southeast around 15 mph. Chc of wetting rain.Zero percent. Transport winds.....South around 15 mph. Mixing Height.......12800-14000 ft agl. Smoke dispersal.....Very good to excellent. .TONIGHT... Sky/weather.........Mostly clear. Chance of thunder...0 percent. Min temperature.....56-61. 24 hr trend......1 degree warmer. Max humidity........39-45 percent. 24 hr trend......1 percent wetter. Humidity recovery...Moderate. 20-foot winds.......Southeast winds around 10 mph until 2400, then southwest. Gusts up to 15 mph. Ridge top winds.....Southeast around 15 mph until 2400, then southwest. Chc of wetting rain.Zero percent. Transport winds.....South around 15 mph. Mixing Height.......6200-8200 ft agl until 2400, then 600-800 ft agl. Smoke dispersal.....Good until 2400, then poor. .WEDNESDAY... Sky/weather.........Mostly sunny. Chance of thunder...0 percent. Max temperature.....90-95. 24 hr trend......3 degrees warmer. Min humidity........10-16 percent. 24 hr trend......1 percent wetter. 20-foot winds.......Upslope/upvalley 5-9 mph until 1200, then southwest around 10 mph. Gusts up to 20 mph. Ridge top winds.....Southwest 10 to 15 mph. Chc of wetting rain.Zero percent. Transport winds.....Southwest 10 to 15 mph. Mixing Height.......1200-3200 ft agl until 1200, then 8800-10800 ft agl. Smoke dispersal.....Poor until 1200, then very good. .WEDNESDAY NIGHT... Sky/weather.........Partly cloudy. Chance of thunder...0 percent. Min temperature.....58-63. 24 hr trend......4 degrees warmer. Max humidity........47-53 percent. 24 hr trend......2 percent wetter. Humidity recovery...Moderate. 20-foot winds.......West winds around 10 mph with gusts to around 15 mph. Ridge top winds.....West around 15 mph. Chc of wetting rain.Zero percent. Transport winds.....Northwest around 15 mph. Mixing Height.......6200-8200 ft agl until 2400, then 400-800 ft agl. Smoke dispersal.....Good to very good until 2400, then poor. .THURSDAY... 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.....82-87. 24 hr trend......8 degrees cooler. Min humidity........23-29 percent. 24 hr trend......14 percent wetter. 20-foot winds.......Upslope/upvalley 5-9 mph until 0900, then northeast around 10 mph. Gusts up to 20 mph. Ridge top winds.....North around 10 mph until 1200, then east. Chc of wetting rain.Zero percent. Transport winds.....Northeast around 15 mph until 1200, then southeast. Mixing Height.......1400-3400 ft agl until 1200, then 5800-7800 ft agl. Smoke dispersal.....Poor until 1200, then good. .Forecast days 3 through 7...... .THURSDAY THROUGH SATURDAY...Partly cloudy with slight chance of showers and thunderstorms. Lows 53 to 58. Highs in the lower 80s. Northeast winds around 10 mph. .SUNDAY...Partly cloudy. Chance of showers and thunderstorms. Lows in the mid 50s. Highs in the upper 70s. Winds generally less than 10 mph. .MONDAY...Partly cloudy with chance of showers and thunderstorms. Lows in the lower 50s. Highs in the upper 70s. .TUESDAY...Partly cloudy. Chance of showers and slight chance of thunderstorms in the afternoon. Highs in the upper 70s. $$ WYZ285-202200- South Bighorn Mountains- 146 PM MDT Tue Aug 19 2025 .THIS AFTERNOON... Sky/weather.........Mostly sunny. Isolated showers early in the evening. Areas of smoke early in the evening. Chance of showers 20 percent. Chance of thunder...0 percent. Max temperature.....83-88. 24 hr trend......5 degrees warmer. Min humidity........9-15 percent. 24 hr trend......3 percent drier. 20-foot winds.......South winds around 10 mph and gusty. Ridge top winds.....South around 15 mph. Chc of wetting rain.Zero percent. Transport winds.....Southwest around 15 mph. Mixing Height.......11600-13200 ft agl. Smoke dispersal.....Very good to excellent. .TONIGHT... Sky/weather.........Mostly clear. Areas of smoke early in the evening. Chance of thunder...0 percent. Min temperature.....61-66. 24 hr trend......1 degree cooler. Max humidity........47-53 percent. 24 hr trend......8 percent wetter. Humidity recovery...Moderate. 20-foot winds.......South winds 10 to 15 mph with gusts to around 25 mph. Ridge top winds.....South 15 to 20 mph. Chc of wetting rain.Zero percent. Transport winds.....South 15 to 20 mph. Mixing Height.......4800-6800 ft agl until 2400, then 200-600 ft agl. Smoke dispersal.....Fair to good until 2400, then poor. .WEDNESDAY... Sky/weather.........Mostly sunny. Areas of smoke in the afternoon. Chance of thunder...0 percent. Max temperature.....86-91. 24 hr trend......3 degrees warmer. Min humidity........8-14 percent. 24 hr trend......Unchanged. 20-foot winds.......Southwest winds around 10 mph until 1500, then west. Gusts up to 20 mph. Ridge top winds.....Southwest around 15 mph. Chc of wetting rain.Zero percent. Transport winds.....Southwest around 15 mph. Mixing Height.......2800-4800 ft agl until 1200, then 10000-12000 ft agl. Smoke dispersal.....Poor to fair until 1200, then very good to excellent. .WEDNESDAY NIGHT... Sky/weather.........Partly cloudy. Chance of thunder...0 percent. Min temperature.....57-62. 24 hr trend......2 degrees cooler. Max humidity........45-51 percent. 24 hr trend......1 percent drier. Humidity recovery...Moderate. 20-foot winds.......Northwest winds around 10 mph until 2100, then north. Gusts up to 15 mph. Ridge top winds.....Northwest around 15 mph. Chc of wetting rain.Zero percent. Transport winds.....North around 15 mph. Mixing Height.......5000-7000 ft agl until 2400, then 200-600 ft agl. Smoke dispersal.....Good until 2400, then poor. .THURSDAY... 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.....77-82. 24 hr trend......10 degrees cooler. Min humidity........30-36 percent. 24 hr trend......20 percent wetter. 20-foot winds.......North winds around 10 mph until 1200, then northeast. Gusts up to 20 mph. Ridge top winds.....North around 15 mph until 1200, then northeast. Chc of wetting rain.Zero percent. Transport winds.....North around 15 mph until 1200, then south. Mixing Height.......800-2800 ft agl until 1200, then 4400-6400 ft agl. Smoke dispersal.....Poor to fair. .Forecast days 3 through 7...... .THURSDAY NIGHT...Partly cloudy with chance of showers and slight chance of thunderstorms. Lows in the mid 50s. Northeast winds around 10 mph. .FRIDAY...Partly cloudy with chance of showers and thunderstorms. Lows in the lower 50s. Highs in the lower 70s. Northeast winds around 10 mph. .SATURDAY THROUGH SUNDAY...Partly cloudy with slight chance of showers and thunderstorms. Lows 50 to 55. Highs 70 to 75. East winds around 10 mph. .MONDAY...Partly cloudy with chance of showers and thunderstorms. Lows in the lower 50s. Highs in the lower 70s. .TUESDAY...Partly cloudy. Slight chance of showers and thunderstorms in the afternoon. Highs in the lower 70s. $$ WYZ281-202200- Johnson County/Casper BLM- Including the cities of Buffalo and Kaycee 146 PM MDT Tue Aug 19 2025 .THIS AFTERNOON... Sky/weather.........Partly cloudy. Chance of thunder...0 percent. Max temperature.....88-93. 24 hr trend......5 degrees warmer. Min humidity........11-17 percent. 24 hr trend......5 percent drier. 20-foot winds.......Southeast winds around 10 mph with higher gusts. Ridge top winds.....Southeast around 15 mph. Chc of wetting rain.Zero percent. Transport winds.....South around 15 mph. Mixing Height.......14200-15000 ft agl. Smoke dispersal.....Excellent. .TONIGHT... Sky/weather.........Mostly clear. Isolated showers early in the evening. Chance of showers 20 percent. Chance of thunder...0 percent. Min temperature.....62-67. 24 hr trend......4 degrees warmer. Max humidity........52-58 percent. 24 hr trend......2 percent wetter. Humidity recovery...Moderate. 20-foot winds.......South winds around 10 mph and gusty. Ridge top winds.....South around 15 mph. Chc of wetting rain.Zero percent. Transport winds.....South around 15 mph. Mixing Height.......6200-8200 ft agl until 2400, then 400-800 ft agl. Smoke dispersal.....Good to very good until 2400, then poor. .WEDNESDAY... Sky/weather.........Mostly sunny. Chance of thunder...0 percent. Max temperature.....91-96. 24 hr trend......2 degrees warmer. Min humidity........10-16 percent. 24 hr trend......1 percent drier. 20-foot winds.......South winds 10 to 15 mph with gusts to around 25 mph. Ridge top winds.....South around 15 mph. Chc of wetting rain.Zero percent. Transport winds.....Southwest around 15 mph. Mixing Height.......2200-4200 ft agl until 1200, then 11800-13800 ft agl. Smoke dispersal.....Poor to fair until 1200, then excellent. .WEDNESDAY NIGHT... Sky/weather.........Partly cloudy. Chance of thunder...0 percent. Min temperature.....61-66. 24 hr trend......1 degree cooler. Max humidity........53-59 percent. 24 hr trend......1 percent drier. Humidity recovery...Moderate. 20-foot winds.......Southwest winds around 10 mph until 2100, then northwest. Gusts up to 20 mph. Ridge top winds.....Northwest around 15 mph. Chc of wetting rain.Zero percent. Transport winds.....North around 15 mph. Mixing Height.......6000-8000 ft agl until 2400, then 600-800 ft agl. Smoke dispersal.....Good until 2400, then poor. .THURSDAY... 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...10 percent. Max temperature.....78-83. 24 hr trend......13 degrees cooler. Min humidity........36-42 percent. 24 hr trend......21 percent wetter. 20-foot winds.......North winds around 15 mph with gusts to around 25 mph. Ridge top winds.....North around 20 mph. Chc of wetting rain.Zero percent. Transport winds.....North around 20 mph. Mixing Height.......1400-3400 ft agl until 1200, then 4600-6200 ft agl. Smoke dispersal.....Fair to good. .Forecast days 3 through 7...... .THURSDAY THROUGH FRIDAY...Partly cloudy with chance of showers and thunderstorms. Lows 54 to 59. Highs in the upper 70s. Northeast winds around 10 mph. .SATURDAY THROUGH SUNDAY...Partly cloudy with slight chance of showers and thunderstorms. Lows in the mid 50s. Highs 76 to 81. Winds generally less than 10 mph. .MONDAY THROUGH TUESDAY...Partly cloudy with slight chance of showers and thunderstorms. Lows in the mid 50s. Highs in the lower 80s. $$ WYZ282-202200- South Bighorn Basin/Worland BLM- Including the cities of Ten Sleep, Thermopolis, and Worland 146 PM MDT Tue Aug 19 2025 .THIS AFTERNOON... Sky/weather.........Mostly sunny. Areas of smoke. Chance of thunder...0 percent. Max temperature.....87-92. 24 hr trend......5 degrees warmer. Min humidity........8-14 percent. 24 hr trend......4 percent drier. 20-foot winds.......South winds around 10 mph with higher gusts. Ridge top winds.....South around 15 mph. Chc of wetting rain.Zero percent. Transport winds.....South around 15 mph. Mixing Height.......13000-14000 ft agl. Smoke dispersal.....Very good to excellent. .TONIGHT... Sky/weather.........Mostly clear. Areas of smoke. Chance of thunder...0 percent. Min temperature.....60-65. 24 hr trend......Unchanged. Max humidity........45-51 percent. 24 hr trend......3 percent wetter. Humidity recovery...Moderate. 20-foot winds.......South winds around 10 mph and gusty. Ridge top winds.....South around 15 mph. Chc of wetting rain.Zero percent. Transport winds.....South around 15 mph. Mixing Height.......5800-7800 ft agl until 2400, then 400-800 ft agl. Smoke dispersal.....Good until 2400, then poor. .WEDNESDAY... Sky/weather.........Mostly sunny then becoming partly cloudy. Areas of smoke in the morning. Chance of thunder...0 percent. Max temperature.....88-93. 24 hr trend......2 degrees warmer. Min humidity........8-14 percent. 24 hr trend......1 percent wetter. 20-foot winds.......Upslope/upvalley 5-9 mph until 1200, then south around 10 mph until 1500, then west. Gusts up to 15 mph. Ridge top winds.....South 10 to 15 mph. Chc of wetting rain.Zero percent. Transport winds.....South around 10 mph until 1200, then west. Mixing Height.......1200-3200 ft agl until 1200, then 9200-11200 ft agl. Smoke dispersal.....Poor until 1200, then very good. .WEDNESDAY NIGHT... Sky/weather.........Partly cloudy. Chance of thunder...0 percent. Min temperature.....56-61. 24 hr trend......1 degree warmer. Max humidity........49-55 percent. 24 hr trend......7 percent wetter. Humidity recovery...Moderate. 20-foot winds.......Northwest winds around 10 mph until 2400, then west. Gusts up to 15 mph. Ridge top winds.....Northwest 10 to 15 mph. Chc of wetting rain.Zero percent. Transport winds.....Northwest around 15 mph. Mixing Height.......4200-6200 ft agl until 2400, then 600-800 ft agl. Smoke dispersal.....Fair to good until 2400, then poor. .THURSDAY... 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......10 degrees cooler. Min humidity........25-31 percent. 24 hr trend......14 percent wetter. 20-foot winds.......Northwest winds around 10 mph until 1500, then north. Gusts up to 20 mph. Ridge top winds.....Northwest around 15 mph. Chc of wetting rain.Zero percent. Transport winds.....Northwest around 15 mph. Mixing Height.......1200-3200 ft agl until 1200, then 4600-6600 ft agl. Smoke dispersal.....Poor to fair. .Forecast days 3 through 7...... .THURSDAY THROUGH FRIDAY...Partly cloudy with slight chance of showers and thunderstorms. Lows 55 to 60. Highs in the lower 80s. North winds around 10 mph. .SATURDAY...Mostly clear. Slight chance of showers and thunderstorms. Lows in the mid 50s. Highs in the lower 80s. Winds generally less than 10 mph. .SUNDAY...Partly cloudy with slight chance of showers and thunderstorms. Lows in the upper 50s. Highs in the lower 80s. Winds generally less than 10 mph. .MONDAY...Partly cloudy with chance of showers and slight chance of thunderstorms. Lows in the mid 50s. Highs in the lower 80s. .TUESDAY...Partly cloudy. Slight chance of showers and thunderstorms in the afternoon. Highs in the lower 80s. $$ WYZ275-202200- North Bighorn Basin/Worland BLM- Including the cities of Greybull, Lovell, and Powell 146 PM MDT Tue Aug 19 2025 .THIS AFTERNOON... Sky/weather.........Sunny. Chance of thunder...0 percent. Max temperature.....84-89. 24 hr trend......5 degrees warmer. Min humidity........8-14 percent. 24 hr trend......5 percent drier. 20-foot winds.......Southeast winds around 10 mph with higher gusts. Ridge top winds.....Southeast around 15 mph. Chc of wetting rain.Zero percent. Transport winds.....South around 15 mph. Mixing Height.......12200-13600 ft agl. Smoke dispersal.....Excellent. .TONIGHT... Sky/weather.........Mostly clear. Areas of smoke early in the evening. Chance of thunder...0 percent. Min temperature.....59-64. 24 hr trend......2 degrees warmer. Max humidity........45-51 percent. 24 hr trend......2 percent drier. Humidity recovery...Moderate. 20-foot winds.......Southeast winds around 10 mph and gusty. Ridge top winds.....Southeast around 15 mph. Chc of wetting rain.Zero percent. Transport winds.....Southeast around 15 mph. Mixing Height.......5400-7400 ft agl until 2400, then 400-800 ft agl. Smoke dispersal.....Good until 2400, then poor. .WEDNESDAY... Sky/weather.........Mostly sunny then becoming partly cloudy. Areas of smoke in the morning. Chance of thunder...0 percent. Max temperature.....86-91. 24 hr trend......1 degree warmer. Min humidity........10-16 percent. 24 hr trend......2 percent wetter. 20-foot winds.......Upslope/upvalley 5-9 mph until 1200, then south around 10 mph until 1500, then west. Gusts up to 15 mph. Ridge top winds.....South 10 to 15 mph. Chc of wetting rain.Zero percent. Transport winds.....South around 10 mph until 1200, then west. Mixing Height.......800-2800 ft agl until 1200, then 7200-9200 ft agl. Smoke dispersal.....Poor until 1200, then good to very good. .WEDNESDAY NIGHT... Sky/weather.........Partly cloudy. Chance of thunder...0 percent. Min temperature.....55-60. 24 hr trend......1 degree warmer. Max humidity........50-56 percent. 24 hr trend......11 percent wetter. Humidity recovery...Moderate. 20-foot winds.......North winds around 10 mph. Gusts up to 15 mph until 2400, then 25 mph. Ridge top winds.....North around 15 mph. Chc of wetting rain.Zero percent. Transport winds.....Northwest around 15 mph. Mixing Height.......3400-5400 ft agl until 2400, then 400-800 ft agl. Smoke dispersal.....Fair to good until 2400, then poor. .THURSDAY... 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...10 percent. Max temperature.....77-82. 24 hr trend......10 degrees cooler. Min humidity........28-34 percent. 24 hr trend......14 percent wetter. 20-foot winds.......Northwest winds 10 to 15 mph with gusts to around 25 mph. Ridge top winds.....Northwest around 15 mph. Chc of wetting rain.Zero percent. Transport winds.....Northwest 15 to 20 mph. Mixing Height.......1400-3400 ft agl until 1200, then 4400-6400 ft agl. Smoke dispersal.....Fair to good. .Forecast days 3 through 7...... .THURSDAY NIGHT...Partly cloudy with slight chance of showers and thunderstorms. Lows in the upper 50s. North winds around 10 mph. .FRIDAY...Mostly clear with slight chance of showers and thunderstorms. Lows in the mid 50s. Highs in the lower 80s. North winds around 10 mph. .SATURDAY...Mostly clear. Lows in the mid 50s. Highs in the lower 80s. Winds generally less than 10 mph. .SUNDAY...Partly cloudy. Slight chance of showers and thunderstorms. Lows in the upper 50s. Highs in the lower 80s. Winds generally less than 10 mph. .MONDAY THROUGH TUESDAY...Partly cloudy with slight chance of showers and thunderstorms. Lows in the upper 50s. Highs in the mid 80s. $$ WYZ276-202200- Cody Foothills- Including the cities of Clark, Cody, and Meeteetse 146 PM MDT Tue Aug 19 2025 .THIS AFTERNOON... Sky/weather.........Mostly sunny. Chance of thunder...0 percent. Max temperature.....87-92. 24 hr trend......6 degrees warmer. Min humidity........10-16 percent. 24 hr trend......8 percent drier. 20-foot winds.......Southeast winds around 10 mph with higher gusts. Ridge top winds.....Southeast around 15 mph. Chc of wetting rain.Zero percent. Transport winds.....South around 15 mph. Mixing Height.......14200-15000 ft agl. Smoke dispersal.....Excellent. .TONIGHT... Sky/weather.........Mostly clear. Areas of smoke late in the evening. Chance of thunder...0 percent. Min temperature.....60-65. 24 hr trend......2 degrees warmer. Max humidity........33-39 percent. 24 hr trend......7 percent drier. Humidity recovery...Poor. 20-foot winds.......South winds around 10 mph until 2400, then southwest. Gusts up to 20 mph. Ridge top winds.....Southwest around 15 mph. Chc of wetting rain.Zero percent. Transport winds.....Southwest around 15 mph. Mixing Height.......6200-8200 ft agl until 2400, then 600-1000 ft agl. Smoke dispersal.....Good to very good until 2400, then poor. .WEDNESDAY... 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.....87-92. 24 hr trend......Unchanged. Min humidity........15-21 percent. 24 hr trend......3 percent wetter. 20-foot winds.......Southwest winds around 10 mph with higher gusts. Ridge top winds.....West around 15 mph. Chc of wetting rain.Zero percent. Transport winds.....West 15 to 20 mph. Mixing Height.......3600-5600 ft agl until 1200, then 8800-10800 ft agl. Smoke dispersal.....Fair to good until 1200, then excellent. .WEDNESDAY NIGHT... Sky/weather.........Partly cloudy. Chance of thunder...0 percent. Min temperature.....56-61. 24 hr trend......4 degrees cooler. Max humidity........53-59 percent. 24 hr trend......21 percent wetter. Humidity recovery...Moderate. 20-foot winds.......West winds around 10 mph and gusty. Ridge top winds.....West around 15 mph. Chc of wetting rain.Zero percent. Transport winds.....Northwest around 15 mph. Mixing Height.......2600-4600 ft agl until 2400, then 600-1000 ft agl. Smoke dispersal.....Fair to good until 2400, then poor. .THURSDAY... 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.....76-81. 24 hr trend......11 degrees cooler. Min humidity........32-38 percent. 24 hr trend......16 percent wetter. 20-foot winds.......North winds 10 to 15 mph until 1500, then northeast. Gusts up to 25 mph. Ridge top winds.....North 15 to 20 mph. Chc of wetting rain.Zero percent. Transport winds.....North around 20 mph. Mixing Height.......1400-3400 ft agl until 1200, then 4000-6000 ft agl. Smoke dispersal.....Fair to good. .Forecast days 3 through 7...... .THURSDAY NIGHT...Partly cloudy. Slight chance of showers and thunderstorms in the evening. Lows in the mid 50s. Northwest winds around 10 mph. .FRIDAY THROUGH SATURDAY...Mostly clear with slight chance of showers and thunderstorms. Lows in the lower 50s. Highs 74 to 79. North winds around 10 mph. .SUNDAY...Partly cloudy with chance of showers and thunderstorms. Lows in the mid 50s. Highs in the upper 70s. Winds generally less than 10 mph. .MONDAY THROUGH TUESDAY...Partly cloudy with chance of showers and thunderstorms. Lows in the mid 50s. Highs in the upper 70s. $$ WYZ287-202200- Owl Creek Mountains- 146 PM MDT Tue Aug 19 2025 .THIS AFTERNOON... Sky/weather.........Sunny. Chance of thunder...0 percent. Max temperature.....83-88. 24 hr trend......5 degrees warmer. Min humidity........7-13 percent. 24 hr trend......4 percent drier. 20-foot winds.......South winds around 10 mph with higher gusts. Ridge top winds.....South around 15 mph. Chc of wetting rain.Zero percent. Transport winds.....South around 15 mph. Mixing Height.......11400-13000 ft agl. Smoke dispersal.....Excellent. .TONIGHT... Sky/weather.........Mostly clear. Chance of thunder...0 percent. Min temperature.....60-65. 24 hr trend......Unchanged. Max humidity........33-39 percent. 24 hr trend......1 percent drier. Humidity recovery...Poor. 20-foot winds.......South winds around 10 mph with gusts to around 15 mph. Ridge top winds.....South around 15 mph. Chc of wetting rain.Zero percent. Transport winds.....South around 15 mph. Mixing Height.......5200-7200 ft agl until 2400, then 200-800 ft agl. Smoke dispersal.....Good until 2400, then poor. .WEDNESDAY... Sky/weather.........Mostly sunny then becoming partly cloudy. Isolated showers and thunderstorms early in the afternoon. Some thunderstorms may produce gusty winds early in the afternoon. Chance of precipitation 20 percent. Chance of thunder...0 percent. Max temperature.....84-89. 24 hr trend......2 degrees warmer. Min humidity........9-15 percent. 24 hr trend......2 percent wetter. 20-foot winds.......Southwest winds around 10 mph with higher gusts. Ridge top winds.....Southwest around 15 mph. Chc of wetting rain.Zero percent. Transport winds.....Southwest around 15 mph. Mixing Height.......3200-5200 ft agl until 1200, then 9800-11800 ft agl. Smoke dispersal.....Poor to fair until 1200, then very good to excellent. .WEDNESDAY NIGHT... Sky/weather.........Partly cloudy. Chance of thunder...0 percent. Min temperature.....58-63. 24 hr trend......2 degrees cooler. Max humidity........46-52 percent. 24 hr trend......19 percent wetter. Humidity recovery...Moderate. 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.....Northwest around 15 mph. Mixing Height.......3000-5000 ft agl until 2400, then 200-800 ft agl. Smoke dispersal.....Fair to good until 2400, then poor. .THURSDAY... 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.....76-81. 24 hr trend......9 degrees cooler. Min humidity........25-31 percent. 24 hr trend......15 percent wetter. 20-foot winds.......North winds around 10 mph with gusts to around 25 mph until 1200, then northeast and gusty. Ridge top winds.....North around 15 mph until 1200, then northeast. Chc of wetting rain.Zero percent. Transport winds.....North around 20 mph until 1200, then west. Mixing Height.......1000-3000 ft agl until 1200, then 4200-6200 ft agl. Smoke dispersal.....Poor to fair. .Forecast days 3 through 7...... .THURSDAY THROUGH SATURDAY...Partly cloudy with slight chance of showers and thunderstorms. Lows 52 to 57. Highs in the mid 70s. North winds around 10 mph. .SUNDAY...Partly cloudy. Chance of showers and thunderstorms. Lows in the mid 50s. Highs in the mid 70s. Winds generally less than 10 mph. .MONDAY...Partly cloudy with chance of showers and thunderstorms. Lows in the mid 50s. Highs in the mid 70s. .TUESDAY...Partly cloudy. Chance of showers and thunderstorms in the afternoon. Highs in the mid 70s. $$ WYZ286-202200- Absaroka Mountains/North Shoshone NF- Including the city of Pahaska 146 PM MDT Tue Aug 19 2025 .THIS AFTERNOON... Sky/weather.........Mostly sunny. Chance of thunder...0 percent. Max temperature.....79-84. 24 hr trend......5 degrees warmer. Min humidity........10-16 percent. 24 hr trend......8 percent drier. 20-foot winds.......Southwest winds around 10 mph with higher gusts. Ridge top winds.....Southwest around 15 mph. Chc of wetting rain.Zero percent. Transport winds.....Southwest around 15 mph. Mixing Height.......11400-13000 ft agl. Smoke dispersal.....Very good to excellent. .TONIGHT... Sky/weather.........Mostly clear. Areas of smoke early in the evening. Chance of thunder...0 percent. Min temperature.....52-57. 24 hr trend......3 degrees warmer. Max humidity........43-49 percent. 24 hr trend......10 percent drier. Humidity recovery...Moderate. 20-foot winds.......Southwest winds around 10 mph with gusts to around 15 mph. Ridge top winds.....Southwest around 15 mph. Chc of wetting rain.Zero percent. Transport winds.....Southwest around 15 mph. Mixing Height.......5000-7000 ft agl until 2400, then 400-1200 ft agl. Smoke dispersal.....Good until 2400, then poor. .WEDNESDAY... Sky/weather.........Partly cloudy. Isolated showers late in the morning. 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.....79-84. 24 hr trend......Unchanged. Min humidity........15-21 percent. 24 hr trend......6 percent wetter. 20-foot winds.......West winds 10 to 15 mph with gusts to around 25 mph. Ridge top winds.....West 15 to 20 mph. Chc of wetting rain.Zero percent. Transport winds.....West around 15 mph until 1200, then southwest around 25 mph. Mixing Height.......3800-5800 ft agl until 1200, then 8400-10400 ft agl. Smoke dispersal.....Good until 1200, then excellent. .WEDNESDAY 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.....49-54. 24 hr trend......1 degree cooler. Max humidity........58-64 percent. 24 hr trend......16 percent wetter. Humidity recovery...Good. 20-foot winds.......West winds around 10 mph until 0300, then downslope/downvalley 4-7 mph. Gusts up to 20 mph. Ridge top winds.....West 10 to 15 mph. Chc of wetting rain.Zero percent. Transport winds.....West 10 to 15 mph. Mixing Height.......2400-4400 ft agl until 2400, then 400-1000 ft agl. Smoke dispersal.....Fair to good until 2400, then poor. .THURSDAY... Sky/weather.........Partly cloudy. Chance of showers and slight chance of thunderstorms in the afternoon. Chance of precipitation 40 percent. Chance of thunder...20 percent. Max temperature.....70-75. 24 hr trend......6 degrees cooler. Min humidity........30-36 percent. 24 hr trend......6 percent wetter. 20-foot winds.......Upslope/upvalley 5-9 mph until 0900, then southeast around 10 mph until 1200, then southwest until 1500, then west. Gusts up to 20 mph. Ridge top winds.....Northwest around 15 mph until 1200, then southwest. Chc of wetting rain.Zero percent. Transport winds.....Southwest 15 to 20 mph. Mixing Height.......2400-4400 ft agl until 1200, then 7000-9000 ft agl. Smoke dispersal.....Poor to fair until 1200, then very good. .Forecast days 3 through 7...... .THURSDAY THROUGH SATURDAY...Partly cloudy with slight chance of showers and thunderstorms. Lows 44 to 49. Highs in the lower 70s. East winds around 10 mph. .SUNDAY...Partly cloudy. Chance of showers and thunderstorms. Lows in the upper 40s. Highs in the upper 60s. Winds generally less than 10 mph. .MONDAY THROUGH TUESDAY...Partly cloudy with chance of showers and thunderstorms. Lows in the upper 40s. Highs in the upper 60s. $$ WYZ140-202200- Yellowstone National Park- Including the cities of Lake, Mammoth, and Old Faithful 146 PM MDT Tue Aug 19 2025 .THIS AFTERNOON... Sky/weather.........Mostly sunny. Areas of smoke. Chance of thunder...0 percent. Max temperature.....79-84. 24 hr trend......3 degrees warmer. Min humidity........11-17 percent. 24 hr trend......6 percent drier. 20-foot winds.......Southwest winds around 10 mph and gusty. Ridge top winds.....Southwest around 15 mph. Chc of wetting rain.Zero percent. Transport winds.....Southwest around 15 mph. Mixing Height.......9800-11200 ft agl. Smoke dispersal.....Very good. .TONIGHT... Sky/weather.........Mostly clear. Areas of smoke early in the evening. Chance of thunder...0 percent. Min temperature.....44-49. 24 hr trend......2 degrees warmer. Max humidity........61-67 percent. 24 hr trend......7 percent drier. Humidity recovery...Good. 20-foot winds.......Downslope/downvalley 4-7 mph. Ridge top winds.....South around 10 mph. Chc of wetting rain.Zero percent. Transport winds.....South around 10 mph. Mixing Height.......4400-6400 ft agl until 2400, then 400-800 ft agl. Smoke dispersal.....Fair to good until 2400, then poor. .WEDNESDAY... Sky/weather.........Mostly sunny then becoming partly cloudy. Isolated showers late in the morning. 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.....79-84. 24 hr trend......1 degree cooler. Min humidity........22-28 percent. 24 hr trend......7 percent wetter. 20-foot winds.......Upslope/upvalley 5-9 mph until 0900, then southwest around 10 mph with gusts to around 25 mph. Ridge top winds.....Southwest 10 to 15 mph. Chc of wetting rain.Zero percent. Transport winds.....South around 15 mph until 1200, then southwest around 25 mph. Mixing Height.......3000-5000 ft agl until 1200, then 7600-9400 ft agl. Smoke dispersal.....Good until 1200, then excellent. .WEDNESDAY NIGHT... Sky/weather.........Partly cloudy. Chance of thunder...0 percent. Min temperature.....45-50. 24 hr trend......1 degree cooler. Max humidity........67-73 percent. 24 hr trend......11 percent wetter. Humidity recovery...Good. 20-foot winds.......Southwest winds around 10 mph and gusty until 2100, then downslope/downvalley 4-7 mph. Ridge top winds.....Southwest around 10 mph until 2400, then southeast. Chc of wetting rain.Zero percent. Transport winds.....Southwest around 15 mph until 2400, then northwest. Mixing Height.......3000-5000 ft agl until 2400, then 400-800 ft agl. Smoke dispersal.....Good until 2400, then poor. .THURSDAY... 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...10 percent. Max temperature.....74-79. 24 hr trend......3 degrees cooler. Min humidity........21-27 percent. 24 hr trend......Unchanged. 20-foot winds.......Upslope/upvalley 5-9 mph until 1200, then west around 10 mph. Gusts up to 20 mph. Ridge top winds.....Northeast around 10 mph until 1200, then west. Chc of wetting rain.Zero percent. Transport winds.....North around 10 mph until 1200, then west around 20 mph. Mixing Height.......2200-4200 ft agl until 1200, then 8200-10200 ft agl. Smoke dispersal.....Poor to fair until 1200, then very good to excellent. .Forecast days 3 through 7...... .THURSDAY NIGHT...Mostly clear. Lows in the lower 40s. Winds generally less than 10 mph. .FRIDAY...Mostly clear. Slight chance of showers and thunderstorms. Lows in the lower 40s. Highs in the mid 70s. Winds generally less than 10 mph. .SATURDAY...Partly cloudy. Lows in the lower 40s. Highs in the mid 70s. Winds generally less than 10 mph. .SUNDAY...Partly cloudy. Chance of showers and thunderstorms. Lows in the mid 40s. Highs in the mid 70s. Winds generally less than 10 mph. .MONDAY...Partly cloudy with chance of showers and thunderstorms. Lows in the lower 40s. Highs in the lower 70s. .TUESDAY...Partly cloudy. Slight chance of showers in the morning, then chance of showers and thunderstorms in the afternoon. Highs in the lower 70s. $$ WYZ415-202200- North Zone Bridger Teton NF and Grand Teton NP- Including the cities of Jackson and Moran 146 PM MDT Tue Aug 19 2025 .THIS AFTERNOON... Sky/weather.........Sunny. Chance of thunder...0 percent. Max temperature.....79-84. 24 hr trend......4 degrees warmer. Min humidity........11-17 percent. 24 hr trend......8 percent drier. 20-foot winds.......Southwest winds around 10 mph and gusty. Ridge top winds.....Southwest around 10 mph. Chc of wetting rain.Zero percent. Transport winds.....Southwest around 10 mph. Mixing Height.......9800-11000 ft agl. Smoke dispersal.....Good to very good. .TONIGHT... Sky/weather.........Mostly clear. Chance of thunder...0 percent. Min temperature.....48-53. 24 hr trend......3 degrees warmer. Max humidity........59-65 percent. 24 hr trend......4 percent drier. Humidity recovery...Good. 20-foot winds.......Downslope/downvalley 4-7 mph. Gusts up to 15 mph. Ridge top winds.....Southeast around 10 mph. Chc of wetting rain.Zero percent. Transport winds.....South around 10 mph. Mixing Height.......4400-6400 ft agl until 2400, then 400-1000 ft agl. Smoke dispersal.....Fair to good until 2400, then poor. .WEDNESDAY... 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.....79-84. 24 hr trend......1 degree warmer. Min humidity........21-27 percent. 24 hr trend......7 percent wetter. 20-foot winds.......Upslope/upvalley 5-9 mph until 1200, then southwest around 10 mph. Gusts up to 20 mph. Ridge top winds.....South around 10 mph until 1200, then southwest. Chc of wetting rain.Zero percent. Transport winds.....South around 10 mph until 1200, then southwest around 20 mph. Mixing Height.......2400-4400 ft agl until 1200, then 8200-10200 ft agl. Smoke dispersal.....Poor to fair until 1200, then excellent. .WEDNESDAY 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.....49-54. 24 hr trend......1 degree warmer. Max humidity........59-65 percent. 24 hr trend......7 percent wetter. 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.....Southwest around 10 mph until 2400, then southeast. Chc of wetting rain.Zero percent. Transport winds.....Southwest around 10 mph. Mixing Height.......2200-4200 ft agl until 2400, then 400-1000 ft agl. Smoke dispersal.....Poor to fair until 2400, then poor. .THURSDAY... 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...10 percent. Max temperature.....77-82. 24 hr trend......2 degrees cooler. Min humidity........19-25 percent. 24 hr trend......1 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.....Southwest around 10 mph until 1200, then west around 25 mph. Mixing Height.......2800-4800 ft agl until 1200, then 9600-11600 ft agl. Smoke dispersal.....Fair to good until 1200, then excellent. .Forecast days 3 through 7...... .THURSDAY NIGHT...Partly cloudy. Lows in the upper 40s. Winds generally less than 10 mph. .FRIDAY THROUGH SATURDAY...Partly cloudy with slight chance of showers and thunderstorms. Lows in the upper 40s. Highs in the upper 70s. Winds generally less than 10 mph. .SUNDAY...Mostly cloudy. Chance of showers and thunderstorms. Lows in the upper 40s. Highs in the mid 70s. Winds generally less than 10 mph. .MONDAY THROUGH TUESDAY...Partly cloudy with chance of showers and thunderstorms. Lows in the mid 40s. Highs 69 to 74. $$ WYZ416-202200- West Wind River Mountains/East Zone Bridger Teton NF- 146 PM MDT Tue Aug 19 2025 .THIS AFTERNOON... Sky/weather.........Sunny. Chance of thunder...0 percent. Max temperature.....75-80. 24 hr trend......3 degrees warmer. Min humidity........10-16 percent. 24 hr trend......7 percent drier. 20-foot winds.......Southwest winds around 10 mph with higher gusts. Ridge top winds.....Southwest around 15 mph. Chc of wetting rain.Zero percent. Transport winds.....Southwest around 15 mph. Mixing Height.......9800-10800 ft agl. Smoke dispersal.....Very good. .TONIGHT... Sky/weather.........Mostly clear. Chance of thunder...0 percent. Min temperature.....48-53. 24 hr trend......3 degrees warmer. Max humidity........40-46 percent. 24 hr trend......7 percent drier. Humidity recovery...Moderate. 20-foot winds.......Downslope/downvalley 4-7 mph. Gusts up to 15 mph. Ridge top winds.....Southeast around 10 mph. Chc of wetting rain.Zero percent. Transport winds.....Southwest around 10 mph until 2400, then southeast. Mixing Height.......4400-6400 ft agl until 2400, then 400-800 ft agl. Smoke dispersal.....Fair to good until 2400, then poor. .WEDNESDAY... Sky/weather.........Mostly sunny then becoming partly cloudy. Chance of thunder...0 percent. Max temperature.....76-81. 24 hr trend......2 degrees warmer. Min humidity........15-21 percent. 24 hr trend......4 percent wetter. 20-foot winds.......Upslope/upvalley 5-9 mph until 1200, then southwest around 15 mph. Gusts up to 20 mph. Ridge top winds.....South around 10 mph until 1200, then southwest around 20 mph. Chc of wetting rain.Zero percent. Transport winds.....South around 10 mph until 1200, then southwest around 20 mph. Mixing Height.......3400-5400 ft agl until 1200, then 9800-11800 ft agl. Smoke dispersal.....Fair to good until 1200, then excellent. .WEDNESDAY NIGHT... Sky/weather.........Partly cloudy. Chance of thunder...0 percent. Min temperature.....49-54. 24 hr trend......3 degrees warmer. Max humidity........54-60 percent. 24 hr trend......14 percent wetter. Humidity recovery...Moderate. 20-foot winds.......West winds around 10 mph and gusty until 2100, then downslope/downvalley 4-7 mph. Ridge top winds.....Northwest around 10 mph until 2400, then northeast. Chc of wetting rain.Zero percent. Transport winds.....Northwest 10 to 15 mph. Mixing Height.......4000-6000 ft agl until 2400, then 400-800 ft agl. Smoke dispersal.....Good until 2400, then poor. .THURSDAY... Sky/weather.........Partly cloudy. Slight chance of showers and thunderstorms in the afternoon. Chance of precipitation 20 percent. Chance of thunder...20 percent. Max temperature.....73-78. 24 hr trend......3 degrees cooler. Min humidity........23-29 percent. 24 hr trend......7 percent wetter. 20-foot winds.......Upslope/upvalley 5-9 mph until 0900, then southwest around 10 mph. Gusts up to 20 mph. Ridge top winds.....Southwest 10 to 15 mph. Chc of wetting rain.Zero percent. Transport winds.....West around 10 mph until 1200, then around 20 mph. Mixing Height.......3000-5000 ft agl until 1200, then 8400-10400 ft agl. Smoke dispersal.....Fair to good until 1200, then very good to excellent. .Forecast days 3 through 7...... .THURSDAY THROUGH SATURDAY...Partly cloudy with slight chance of showers and thunderstorms. Lows 42 to 47. Highs in the mid 70s. North winds around 10 mph. .SUNDAY...Mostly cloudy. Chance of showers and thunderstorms. Lows in the lower 40s. Highs in the upper 60s. Winds generally less than 10 mph. .MONDAY...Mostly cloudy with showers likely and chance of thunderstorms. Lows in the lower 40s. Highs in the upper 60s. .TUESDAY...Partly cloudy. Slight chance of showers in the morning, then chance of showers and thunderstorms in the afternoon. Highs in the mid 60s. $$ WYZ288-202200- East Wind River Mountains/South Shoshone NF- Including the cities of Dubois and South Pass 146 PM MDT Tue Aug 19 2025 .THIS AFTERNOON... Sky/weather.........Sunny. Chance of thunder...0 percent. Max temperature.....78-83. 24 hr trend......3 degrees warmer. Min humidity........8-14 percent. 24 hr trend......6 percent drier. 20-foot winds.......Southwest winds around 10 mph with higher gusts. Ridge top winds.....Southwest around 15 mph. Chc of wetting rain.Zero percent. Transport winds.....Southwest around 15 mph. Mixing Height.......11000-12400 ft agl. Smoke dispersal.....Very good to excellent. .TONIGHT... Sky/weather.........Mostly clear. Chance of thunder...0 percent. Min temperature.....52-57. 24 hr trend......3 degrees warmer. Max humidity........32-38 percent. 24 hr trend......7 percent drier. Humidity recovery...Poor. 20-foot winds.......Southwest winds around 10 mph with gusts to around 15 mph. Ridge top winds.....Southwest around 15 mph. Chc of wetting rain.Zero percent. Transport winds.....Southwest around 15 mph. Mixing Height.......5000-7000 ft agl until 2400, then 400-800 ft agl. Smoke dispersal.....Good until 2400, then poor. .WEDNESDAY... Sky/weather.........Mostly sunny then becoming partly cloudy. Isolated showers and thunderstorms early in the afternoon. Some thunderstorms may produce gusty winds early in the afternoon. Chance of precipitation 20 percent. Chance of thunder...0 percent. Max temperature.....80-85. 24 hr trend......2 degrees warmer. Min humidity........12-18 percent. 24 hr trend......3 percent wetter. 20-foot winds.......Southwest winds 10 to 15 mph. Gusts up to 15 mph until 1200, then 25 mph. Ridge top winds.....Southwest 15 to 20 mph. Chc of wetting rain.Zero percent. Transport winds.....Southwest 15 to 20 mph. Mixing Height.......3800-5800 ft agl until 1200, then 10600-12600 ft agl. Smoke dispersal.....Fair to good until 1200, then excellent. .WEDNESDAY NIGHT... Sky/weather.........Partly cloudy. Chance of thunder...0 percent. Min temperature.....54-59. 24 hr trend......2 degrees warmer. Max humidity........47-53 percent. 24 hr trend......14 percent wetter. Humidity recovery...Moderate. 20-foot winds.......West winds around 10 mph and gusty. Ridge top winds.....West around 15 mph. Chc of wetting rain.Zero percent. Transport winds.....West around 15 mph. Mixing Height.......4600-6600 ft agl until 2400, then 400-800 ft agl. Smoke dispersal.....Good until 2400, then poor. .THURSDAY... 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.....74-79. 24 hr trend......5 degrees cooler. Min humidity........23-29 percent. 24 hr trend......13 percent wetter. 20-foot winds.......West winds around 10 mph until 0900, then north until 1200, then west. Gusts up to 20 mph. Ridge top winds.....West around 15 mph. Chc of wetting rain.Zero percent. Transport winds.....West around 15 mph. Mixing Height.......2400-4400 ft agl until 1200, then 7000-9000 ft agl. Smoke dispersal.....Poor to fair until 1200, then very good. .Forecast days 3 through 7...... .THURSDAY THROUGH SATURDAY...Partly cloudy with slight chance of showers and thunderstorms. Lows 46 to 51. Highs in the lower 70s. Northeast winds around 10 mph. .SUNDAY...Mostly cloudy. Chance of showers and thunderstorms. Lows in the upper 40s. Highs in the upper 60s. Winds generally less than 10 mph. .MONDAY...Mostly cloudy with chance of showers and thunderstorms. Lows in the upper 40s. Highs in the upper 60s. .TUESDAY...Partly cloudy. Slight chance of showers in the morning, then chance of showers and thunderstorms in the afternoon. Highs in the upper 60s. $$ WYZ414-202200- Salt and Wyoming Ranges/West Zone Bridger Teton NF- Including the city of Afton 146 PM MDT Tue Aug 19 2025 .THIS AFTERNOON... Sky/weather.........Sunny. Chance of thunder...0 percent. Max temperature.....80-85. 24 hr trend......4 degrees warmer. Min humidity........9-15 percent. 24 hr trend......6 percent drier. 20-foot winds.......Southwest winds around 10 mph and gusty. Ridge top winds.....Southwest around 15 mph. Chc of wetting rain.Zero percent. Transport winds.....Southwest around 15 mph. Mixing Height.......10800-12000 ft agl. Smoke dispersal.....Very good. .TONIGHT... Sky/weather.........Mostly clear. Chance of thunder...0 percent. Min temperature.....48-53. 24 hr trend......7 degrees warmer. Max humidity........58-64 percent. 24 hr trend......4 percent wetter. Humidity recovery...Good. 20-foot winds.......Downslope/downvalley 4-7 mph. Gusts up to 15 mph. Ridge top winds.....Southwest around 10 mph until 2400, then southeast. Chc of wetting rain.Zero percent. Transport winds.....Southwest around 10 mph. Mixing Height.......4800-6800 ft agl until 2400, then 400-1000 ft agl. Smoke dispersal.....Fair to good until 2400, then poor. .WEDNESDAY... Sky/weather.........Mostly sunny then becoming partly cloudy. Chance of thunder...0 percent. Max temperature.....81-86. 24 hr trend......2 degrees warmer. Min humidity........13-19 percent. 24 hr trend......4 percent wetter. 20-foot winds.......Upslope/upvalley 5-9 mph until 1200, then southwest 10 to 15 mph. Gusts up to 20 mph. Ridge top winds.....South around 10 mph until 1200, then southwest. Chc of wetting rain.Zero percent. Transport winds.....South around 10 mph until 1200, then southwest around 20 mph. Mixing Height.......3600-5600 ft agl until 1200, then 10600-12600 ft agl. Smoke dispersal.....Fair to good until 1200, then excellent. .WEDNESDAY NIGHT... Sky/weather.........Partly cloudy. Chance of thunder...0 percent. Min temperature.....49-54. 24 hr trend......Unchanged. Max humidity........61-67 percent. 24 hr trend......5 percent wetter. Humidity recovery...Good. 20-foot winds.......West winds around 10 mph and gusty until 2100, then downslope/downvalley 4-7 mph. Ridge top winds.....Northwest around 10 mph until 2400, then northeast. Chc of wetting rain.Zero percent. Transport winds.....Northwest around 10 mph. Mixing Height.......4000-6000 ft agl until 2400, then 400-1000 ft agl. Smoke dispersal.....Good until 2400, then poor. .THURSDAY... 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........17-23 percent. 24 hr trend......4 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 around 10 mph until 1200, then around 20 mph. Mixing Height.......3000-5000 ft agl until 1200, then 10200-12200 ft agl. Smoke dispersal.....Poor to fair until 1200, then excellent. .Forecast days 3 through 7...... .THURSDAY THROUGH FRIDAY...Partly cloudy. Lows 47 to 52. Highs around 80. Winds generally less than 10 mph. .SATURDAY...Partly cloudy. Slight chance of showers and thunderstorms. Lows in the upper 40s. Highs in the upper 70s. Winds generally less than 10 mph. .SUNDAY...Mostly cloudy. Chance of showers and thunderstorms. Lows in the upper 40s. Highs in the mid 70s. Winds generally less than 10 mph. .MONDAY THROUGH TUESDAY...Partly cloudy. Chance of showers and thunderstorms. Lows in the mid 40s. Highs 69 to 74. $$ WYZ277>279-202200- 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 146 PM MDT Tue Aug 19 2025 .THIS AFTERNOON... Sky/weather.........Sunny. Chance of thunder...0 percent. Max temperature.....80-85. 24 hr trend......3 degrees warmer. Min humidity........6-12 percent. 24 hr trend......4 percent drier. 20-foot winds.......Upslope/upvalley 5-9 mph. Ridge top winds.....West around 10 mph. Chc of wetting rain.Zero percent. Transport winds.....West around 10 mph. Mixing Height.......11600-12600 ft agl. Smoke dispersal.....Very good. .TONIGHT... Sky/weather.........Mostly clear. Chance of thunder...0 percent. Min temperature.....49-54. 24 hr trend......1 degree warmer. Max humidity........48-54 percent. 24 hr trend......Unchanged. Humidity recovery...Moderate. 20-foot winds.......Downslope/downvalley 4-7 mph. Gusts up to 15 mph. Ridge top winds.....East around 10 mph. Chc of wetting rain.Zero percent. Transport winds.....Southwest around 10 mph until 2400, then southeast. Mixing Height.......5400-7400 ft agl until 2400, then 400-600 ft agl. Smoke dispersal.....Fair to good until 2400, then poor. .WEDNESDAY... Sky/weather.........Mostly sunny then becoming partly cloudy. Chance of thunder...0 percent. Max temperature.....82-87. 24 hr trend......3 degrees warmer. Min humidity........11-17 percent. 24 hr trend......2 percent wetter. 20-foot winds.......Upslope/upvalley 5-9 mph until 1200, then southwest around 10 mph. Gusts up to 20 mph. Ridge top winds.....Southeast around 10 mph until 1200, then southwest. Chc of wetting rain.Zero percent. Transport winds.....South around 10 mph until 1200, then southwest. Mixing Height.......1600-3600 ft agl until 1200, then 9600-11600 ft agl. Smoke dispersal.....Poor until 1200, then very good. .WEDNESDAY NIGHT... Sky/weather.........Partly cloudy. Chance of thunder...0 percent. Min temperature.....52-57. 24 hr trend......5 degrees warmer. Max humidity........49-55 percent. 24 hr trend......5 percent wetter. Humidity recovery...Moderate. 20-foot winds.......West winds around 10 mph and gusty until 2100, then downslope/downvalley 4-7 mph. Ridge top winds.....Northwest around 10 mph. Chc of wetting rain.Zero percent. Transport winds.....Northwest 10 to 15 mph. Mixing Height.......6000-8000 ft agl until 2400, then 400-600 ft agl. Smoke dispersal.....Good to very good until 2400, then poor. .THURSDAY... 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.....80-85. 24 hr trend......3 degrees cooler. Min humidity........22-28 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.....North around 10 mph until 1200, then west. Chc of wetting rain.Zero percent. Transport winds.....Northeast around 10 mph until 1200, then west. Mixing Height.......2200-4200 ft agl until 1200, then 8400-10400 ft agl. Smoke dispersal.....Poor to fair until 1200, then very good. .Forecast days 3 through 7...... .THURSDAY THROUGH SATURDAY...Partly cloudy with slight chance of showers and thunderstorms. Lows 50 to 55. Highs in the mid 80s. North winds around 10 mph. .SUNDAY...Mostly cloudy. Chance of showers and thunderstorms. Lows around 50. Highs in the upper 70s. Winds generally less than 10 mph. .MONDAY...Mostly cloudy with chance of showers and thunderstorms. Lows around 50. Highs in the mid 70s. .TUESDAY...Partly cloudy. Slight chance of showers in the morning, then chance of showers and thunderstorms in the afternoon. Highs in the mid 70s. $$ WYZ289-202200- Granite/Green/Ferris/Rattlesnake Mountains- Including the city of Jeffrey City 146 PM MDT Tue Aug 19 2025 .THIS AFTERNOON... Sky/weather.........Mostly sunny. Chance of thunder...0 percent. Max temperature.....83-88. 24 hr trend......2 degrees warmer. Min humidity........6-12 percent. 24 hr trend......3 percent drier. 20-foot winds.......South winds around 10 mph and gusty. Ridge top winds.....South around 15 mph. Chc of wetting rain.Zero percent. Transport winds.....Southwest around 15 mph. Mixing Height.......12200-13200 ft agl. Smoke dispersal.....Very good to excellent. .TONIGHT... Sky/weather.........Mostly clear. Chance of thunder...0 percent. Min temperature.....54-59. 24 hr trend......2 degrees cooler. Max humidity........44-50 percent. 24 hr trend......7 percent wetter. Humidity recovery...Moderate. 20-foot winds.......South winds around 10 mph until 2100, then downslope/downvalley 4-7 mph. Gusts up to 15 mph. Ridge top winds.....Southeast around 10 mph. Chc of wetting rain.Zero percent. Transport winds.....South 10 to 15 mph. Mixing Height.......5600-7600 ft agl until 2400, then 400-600 ft agl. Smoke dispersal.....Good until 2400, then poor. .WEDNESDAY... Sky/weather.........Mostly sunny. Chance of thunder...0 percent. Max temperature.....86-91. 24 hr trend......3 degrees warmer. Min humidity........7-13 percent. 24 hr trend......Unchanged. 20-foot winds.......Upslope/upvalley 5-9 mph until 0900, then southwest around 10 mph. Gusts up to 20 mph. Ridge top winds.....Southwest 10 to 15 mph. Chc of wetting rain.Zero percent. Transport winds.....Southwest 10 to 15 mph. Mixing Height.......1600-3600 ft agl until 1200, then 10400-12400 ft agl. Smoke dispersal.....Poor to fair until 1200, then very good to excellent. .WEDNESDAY NIGHT... Sky/weather.........Mostly clear. Chance of thunder...0 percent. Min temperature.....58-63. 24 hr trend......4 degrees warmer. Max humidity........39-45 percent. 24 hr trend......7 percent drier. Humidity recovery...Moderate. 20-foot winds.......West winds around 10 mph until 2100, then downslope/downvalley 4-7 mph. Gusts up to 20 mph. Ridge top winds.....West 10 to 15 mph. Chc of wetting rain.Zero percent. Transport winds.....West around 15 mph until 2400, then north. Mixing Height.......6200-8200 ft agl until 2400, then 400-600 ft agl. Smoke dispersal.....Good to very good until 2400, then poor. .THURSDAY... 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......6 degrees cooler. Min humidity........22-28 percent. 24 hr trend......14 percent wetter. 20-foot winds.......Upslope/upvalley 5-9 mph until 0900, then northeast around 10 mph. Gusts up to 20 mph. Ridge top winds.....North around 15 mph. Chc of wetting rain.Zero percent. Transport winds.....North around 15 mph. Mixing Height.......1600-3600 ft agl until 1200, then 6600-8600 ft agl. Smoke dispersal.....Poor to fair until 1200, then good to very good. .Forecast days 3 through 7...... .THURSDAY NIGHT...Partly cloudy. Chance of showers and slight chance of thunderstorms in the evening, then slight chance of showers after midnight. Lows in the mid 50s. Northeast winds around 10 mph. .FRIDAY THROUGH SATURDAY...Partly cloudy with slight chance of showers and thunderstorms. Lows in the lower 50s. Highs around 80. Northeast winds around 10 mph. .SUNDAY...Mostly cloudy. Chance of showers and thunderstorms. Lows in the lower 50s. Highs in the mid 70s. Northeast winds around 10 mph. .MONDAY...Mostly cloudy with chance of showers and thunderstorms. Lows in the lower 50s. Highs in the mid 70s. .TUESDAY...Partly cloudy. Slight chance of showers in the morning, then chance of showers and thunderstorms in the afternoon. Highs in the mid 70s. $$ WYZ300-202200- Casper Mountain- 146 PM MDT Tue Aug 19 2025 .THIS AFTERNOON... Sky/weather.........Partly cloudy. Chance of thunder...0 percent. Max temperature.....82-87. 24 hr trend......4 degrees warmer. Min humidity........12-18 percent. 24 hr trend......1 percent drier. 20-foot winds.......East winds around 10 mph and gusty. Ridge top winds.....East around 15 mph. Chc of wetting rain.Zero percent. Transport winds.....Southeast around 15 mph. Mixing Height.......12200-13600 ft agl. Smoke dispersal.....Very good. .TONIGHT... Sky/weather.........Mostly clear. Chance of thunder...0 percent. Min temperature.....58-63. 24 hr trend......2 degrees cooler. Max humidity........61-67 percent. 24 hr trend......8 percent wetter. Humidity recovery...Good. 20-foot winds.......Southeast winds 10 to 15 mph with gusts to around 25 mph. Ridge top winds.....Southeast around 15 mph. Chc of wetting rain.Zero percent. Transport winds.....Southeast 20 to 25 mph. Mixing Height.......5200-7200 ft agl until 2400, then 200-600 ft agl. Smoke dispersal.....Good until 2400, then poor. .WEDNESDAY... Sky/weather.........Mostly sunny. Chance of thunder...0 percent. Max temperature.....85-90. 24 hr trend......3 degrees warmer. Min humidity........9-15 percent. 24 hr trend......3 percent drier. 20-foot winds.......South winds around 10 mph until 0900, then upslope/upvalley 5-9 mph. Gusts up to 15 mph. Ridge top winds.....South around 10 mph until 1200, then west. Chc of wetting rain.Zero percent. Transport winds.....South around 15 mph until 1200, then west. Mixing Height.......3000-5000 ft agl until 1200, then 10600-12600 ft agl. Smoke dispersal.....Poor to fair until 1200, then very good. .WEDNESDAY NIGHT... Sky/weather.........Mostly clear. Chance of thunder...0 percent. Min temperature.....57-62. 24 hr trend......1 degree cooler. Max humidity........47-53 percent. 24 hr trend......14 percent drier. Humidity recovery...Moderate. 20-foot winds.......Northeast winds around 10 mph until 2100, then southeast until 0300, then downslope/downvalley 4-7 mph. Gusts up to 15 mph. Ridge top winds.....Southeast 10 to 15 mph. Chc of wetting rain.Zero percent. Transport winds.....Southeast around 15 mph. Mixing Height.......5400-7400 ft agl until 2400, then 200-600 ft agl. Smoke dispersal.....Good until 2400, then poor. .THURSDAY... Sky/weather.........Mostly sunny then becoming partly cloudy. Chance of thunder...10 percent. Max temperature.....77-82. 24 hr trend......7 degrees cooler. Min humidity........30-36 percent. 24 hr trend......18 percent wetter. 20-foot winds.......Upslope/upvalley 5-9 mph until 0900, then north around 10 mph. Gusts up to 20 mph. Ridge top winds.....North around 15 mph. Chc of wetting rain.Zero percent. Transport winds.....North around 15 mph. Mixing Height.......1000-3000 ft agl until 1200, then 4400-6400 ft agl. Smoke dispersal.....Fair to good. .Forecast days 3 through 7...... .THURSDAY NIGHT...Partly cloudy with chance of showers and slight chance of thunderstorms. Lows in the mid 50s. East winds around 10 mph. .FRIDAY...Partly cloudy with chance of showers and thunderstorms. Lows in the lower 50s. Highs in the mid 70s. Northeast winds around 10 mph. .SATURDAY...Partly cloudy with chance of showers and thunderstorms. Lows in the lower 50s. Highs in the lower 70s. Winds generally less than 10 mph. .SUNDAY...Mostly cloudy. Chance of showers and thunderstorms. Lows in the lower 50s. Highs in the lower 70s. Winds generally less than 10 mph. .MONDAY...Mostly cloudy. Chance of showers and thunderstorms. Lows in the lower 50s. Highs in the lower 70s. .TUESDAY...Partly cloudy. Chance of showers and thunderstorms in the afternoon. Highs in the lower 70s. $$