


Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS Riverton, WY
Issued by NWS Riverton, WY
293 FNUS55 KRIW 011958 FWFRIW Fire Weather Planning Forecast for Western and Central Wyoming National Weather Service Riverton WY 158 PM MDT Mon Sep 1 2025 .DISCUSSION... ...Yellowstone NP and Teton dispatch areas (includes fire weather zones 140...414...415...and 416)... Mostly clear to partly cloudy skies this afternoon will continue into the evening hours before decreasing. There is a very low chance of showers over the mountain areas, with the better chances (only 10-15%) over the Wyoming Range and Togwotee Pass areas. Winds remain light and temperatures near or just above normal with mostly dry conditions. Overnight should be mild. Tuesday should be a near repeat of Monday, with breezy north-northwest flow during the afternoon. The higher elevations of zone 416 will have a 15% chance of showers and thunderstorms as well. A couple of cool fronts will glance the area Wednesday and Thursday with little impact to western Wyoming. ...Cody dispatch area (includes fire weather zones 275...276... 282...283...285...286...287...288...and 289)... Mostly clear and warm/dry over the basins will continue in to the evening. The higher elevations will be partly cloudy with a low chance of showers and thunderstorms. Winds remain relatively light this afternoon and overnight. Mild conditions in the morning will see clouds increase by midday, with a slightly better chance of showers over the mountain areas Tuesday afternoon, especially the eastern Wind Rivers and southern Absarokas. Winds should again be relatively light. A couple of cool fronts will move from north to south through the dispatch area both Wednesday and Thursday, increasing north winds and cloudiness, decreasing temperatures on Thursday, with little to no chance for precipitation. ...Casper dispatch area (includes fire weather zones 277...278... 279...280...281...285...289...and 300)... Mostly clear skies will continue into Tuesday, with partly cloudy skies over the mountains and a very low (10-15%) chance of showers and isolated thunderstorms. Light winds this afternoon will also continue into the evening and overnight. Tuesday afternoon will see more cloudiness from central into north-central WY along with a low chance of showers off South Pass and around the Bighorns, possibly moving to the southeast over the lower elevations. Some gusty north winds should also develop in the afternoon over central WY. A couple of cool fronts will impact areas along and east of the divide both Wednesday and Thursday, increasing north- northeast winds and decreasing temperatures on Thursday. SW WY will remain very warm and dry. ...Thunderstorms imply strong gusty and erratic winds... WYZ280-022200- Natrona County/Casper BLM- Including the cities of Casper and Midwest 158 PM MDT Mon Sep 1 2025 .THIS AFTERNOON... Sky/weather.........Mostly sunny. Haze through the day. Patchy smoke early in the evening. Chance of thunder...0 percent. Max temperature.....77-82. 24 hr trend......2 degrees warmer. Min humidity........15-21 percent. 24 hr trend......3 percent drier. 20-foot winds.......Northeast winds around 10 mph and gusty. Ridge top winds.....Northeast around 15 mph. Chc of wetting rain.Zero percent. Transport winds.....North around 15 mph. Mixing Height.......9000-9800 ft agl. Smoke dispersal.....Good to very good. .TONIGHT... Sky/weather.........Mostly clear. Patchy smoke early in the evening. Haze through the night. Chance of thunder...0 percent. Min temperature.....52-57. 24 hr trend......4 degrees warmer. Max humidity........57-63 percent. 24 hr trend......14 percent drier. Humidity recovery...Good. 20-foot winds.......East winds around 10 mph until 2400, then downslope/downvalley 4-7 mph. Gusts up to 15 mph. Ridge top winds.....Northeast 10 to 15 mph. Chc of wetting rain.Zero percent. Transport winds.....East around 15 mph until 2400, then southeast. Mixing Height.......3800-5800 ft agl until 2400, then 400-600 ft agl. Smoke dispersal.....Fair to good until 2400, then poor. .TUESDAY... Sky/weather.........Mostly sunny. Haze through the day. Chance of thunder...0 percent. Max temperature.....79-84. 24 hr trend......1 degree warmer. Min humidity........16-22 percent. 24 hr trend......Unchanged. 20-foot winds.......Upslope/upvalley 5-9 mph until 1500, then northwest around 10 mph. Gusts up to 15 mph. Ridge top winds.....South around 10 mph until 1200, then northwest. Chc of wetting rain.Zero percent. Transport winds.....Southwest around 10 mph until 1200, then northwest. Mixing Height.......1200-3200 ft agl until 1200, then 7800-9800 ft agl. Smoke dispersal.....Poor until 1200, then good to very good. .TUESDAY NIGHT... Sky/weather.........Mostly clear. Chance of thunder...0 percent. Min temperature.....52-57. 24 hr trend......Unchanged. Max humidity........57-63 percent. 24 hr trend......2 percent wetter. Humidity recovery...Good. 20-foot winds.......North winds around 10 mph until 2100, then downslope/downvalley 4-7 mph. Gusts up to 20 mph. Ridge top winds.....North around 15 mph until 2400, then northwest. Chc of wetting rain.Zero percent. Transport winds.....North 10 to 15 mph. Mixing Height.......3800-5800 ft agl until 2400, then 400-600 ft agl. Smoke dispersal.....Fair to good until 2400, then poor. .WEDNESDAY... Sky/weather.........Mostly sunny. Chance of thunder...0 percent. Max temperature.....73-78. 24 hr trend......5 degrees cooler. Min humidity........31-37 percent. 24 hr trend......11 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 10 to 15 mph. Chc of wetting rain.Zero percent. Transport winds.....North around 15 mph. Mixing Height.......1200-3200 ft agl until 1200, then 5200-7200 ft agl. Smoke dispersal.....Poor until 1200, then good. .Forecast days 3 through 7...... .WEDNESDAY THROUGH THURSDAY...Mostly clear. Lows 48 to 53. Highs in the lower 80s. North winds 10 to 15 mph. .FRIDAY...Mostly clear. Lows in the upper 40s. Highs in the mid 70s. Winds generally less than 10 mph. .SATURDAY...Partly cloudy. Slight chance of showers and thunderstorms. Lows in the lower 50s. Highs in the upper 70s. Winds generally less than 10 mph. .SUNDAY THROUGH MONDAY...Partly cloudy with slight chance of showers and thunderstorms. Lows in the lower 50s. Highs 77 to 82. $$ WYZ283-022200- Upper Wind River Basin/Wind River Basin- Including the cities of Crowheart, Lander, Riverton, and Shoshoni 158 PM MDT Mon Sep 1 2025 .THIS AFTERNOON... Sky/weather.........Mostly sunny. Haze through the day. Patchy smoke early in the evening. Chance of thunder...0 percent. Max temperature.....78-83. 24 hr trend......3 degrees warmer. Min humidity........15-21 percent. 24 hr trend......3 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.....West around 15 mph. Mixing Height.......8400-9200 ft agl. Smoke dispersal.....Good to very good. .TONIGHT... Sky/weather.........Mostly clear. Patchy smoke in the evening. Haze through the night. Chance of thunder...0 percent. Min temperature.....51-56. 24 hr trend......4 degrees warmer. Max humidity........51-57 percent. 24 hr trend......9 percent drier. Humidity recovery...Moderate. 20-foot winds.......East winds around 10 mph until 2400, then downslope/downvalley 4-7 mph until 0300, then east 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.......3400-5400 ft agl until 2400, then 400-800 ft agl. Smoke dispersal.....Fair to good until 2400, then poor. .TUESDAY... Sky/weather.........Mostly sunny then becoming partly cloudy. Haze. Chance of thunder...0 percent. Max temperature.....80-85. 24 hr trend......1 degree warmer. Min humidity........16-22 percent. 24 hr trend......1 percent wetter. 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.....Southwest around 10 mph until 1200, then northwest. Mixing Height.......1000-3000 ft agl until 1200, then 6800-8800 ft agl. Smoke dispersal.....Poor until 1200, then good. .TUESDAY NIGHT... Sky/weather.........Mostly clear. Chance of thunder...0 percent. Min temperature.....50-55. 24 hr trend......Unchanged. Max humidity........51-57 percent. 24 hr trend......1 percent wetter. Humidity recovery...Moderate. 20-foot winds.......North winds around 10 mph until 2400, then northwest. Gusts up to 15 mph. Ridge top winds.....North around 15 mph until 2400, then west. Chc of wetting rain.Zero percent. Transport winds.....North around 15 mph. Mixing Height.......3800-5800 ft agl until 2400, then 400-800 ft agl. Smoke dispersal.....Fair to good until 2400, then poor. .WEDNESDAY... Sky/weather.........Mostly sunny. Chance of thunder...0 percent. Max temperature.....77-82. 24 hr trend......3 degrees cooler. Min humidity........23-29 percent. 24 hr trend......6 percent wetter. 20-foot winds.......Upslope/upvalley 5-9 mph until 1500, then northeast around 10 mph. Gusts up to 15 mph. Ridge top winds.....Northwest around 10 mph until 1200, then northeast. Chc of wetting rain.Zero percent. Transport winds.....North 10 to 15 mph. Mixing Height.......1400-3400 ft agl until 1200, then 6000-8000 ft agl. Smoke dispersal.....Poor until 1200, then good. .Forecast days 3 through 7...... .WEDNESDAY THROUGH THURSDAY...Mostly clear. Lows 49 to 54. Highs in the lower 80s. North winds around 10 mph. .FRIDAY...Mostly clear. Slight chance of showers and thunderstorms. Lows around 50. Highs in the mid 70s. Winds generally less than 10 mph. .SATURDAY...Partly cloudy. Slight chance of showers and thunderstorms. Lows in the lower 50s. Highs in the upper 70s. Winds generally less than 10 mph. .SUNDAY...Partly cloudy with chance of showers and slight chance of thunderstorms. Lows in the lower 50s. Highs in the upper 70s. .MONDAY...Partly cloudy. Slight chance of showers and thunderstorms in the afternoon. Highs in the upper 70s. $$ WYZ285-022200- South Bighorn Mountains- 158 PM MDT Mon Sep 1 2025 .THIS AFTERNOON... Sky/weather.........Mostly sunny. Haze. Chance of thunder...0 percent. Max temperature.....75-80. 24 hr trend......4 degrees warmer. Min humidity........18-24 percent. 24 hr trend......2 percent drier. 20-foot winds.......Northeast winds around 10 mph and gusty. Ridge top winds.....Northeast around 15 mph. Chc of wetting rain.Zero percent. Transport winds.....Northwest around 15 mph. Mixing Height.......8400-9400 ft agl. Smoke dispersal.....Good to very good. .TONIGHT... Sky/weather.........Mostly clear. Haze through the night. Patchy smoke late in the evening. Chance of thunder...0 percent. Min temperature.....53-58. 24 hr trend......1 degree warmer. Max humidity........48-54 percent. 24 hr trend......3 percent drier. Humidity recovery...Moderate. 20-foot winds.......East winds around 10 mph with gusts to around 25 mph. Ridge top winds.....East around 15 mph. Chc of wetting rain.Zero percent. Transport winds.....East around 15 mph. Mixing Height.......3200-5200 ft agl until 2400, then 200-600 ft agl. Smoke dispersal.....Fair to good until 2400, then poor. .TUESDAY... Sky/weather.........Mostly sunny. Haze through the day. Isolated showers and thunderstorms early in the afternoon. Chance of precipitation 20 percent. Chance of thunder...10 percent. Max temperature.....75-80. 24 hr trend......1 degree warmer. Min humidity........19-25 percent. 24 hr trend......1 percent wetter. 20-foot winds.......Upslope/upvalley 5-9 mph until 1200, then southwest around 10 mph until 1500, then northwest. Gusts up to 15 mph. Ridge top winds.....South around 10 mph until 1200, then west. Chc of wetting rain.Zero percent. Transport winds.....Southwest around 10 mph until 1200, then northwest. Mixing Height.......1800-3800 ft agl until 1200, then 7800-9800 ft agl. Smoke dispersal.....Poor until 1200, then good to very good. .TUESDAY NIGHT... Sky/weather.........Partly cloudy. Chance of thunder...0 percent. Min temperature.....51-56. 24 hr trend......2 degrees cooler. Max humidity........51-57 percent. 24 hr trend......4 percent wetter. Humidity recovery...Moderate. 20-foot winds.......North 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.......3400-5400 ft agl until 2400, then 200-400 ft agl. Smoke dispersal.....Fair to good until 2400, then poor. .WEDNESDAY... Sky/weather.........Mostly sunny. Chance of thunder...0 percent. Max temperature.....70-75. 24 hr trend......5 degrees cooler. Min humidity........32-38 percent. 24 hr trend......10 percent wetter. 20-foot winds.......Northwest winds around 10 mph until 0900, then upslope/upvalley 5-9 mph until 1200, then north 10 to 15 mph. Gusts up to 20 mph. Ridge top winds.....Northwest 10 to 15 mph. Chc of wetting rain.Zero percent. Transport winds.....Northwest 15 to 20 mph. Mixing Height.......1000-3000 ft agl until 1200, then 5000-7000 ft agl. Smoke dispersal.....Poor until 1200, then good to very good. .Forecast days 3 through 7...... .WEDNESDAY THROUGH FRIDAY...Mostly clear. Lows 48 to 53. Highs 69 to 74. Northeast winds 10 to 15 mph. .SATURDAY...Partly cloudy. Slight chance of showers and thunderstorms. Lows in the lower 50s. Highs in the lower 70s. Southeast winds around 10 mph. .SUNDAY...Partly cloudy with slight chance of showers and thunderstorms. Lows in the lower 50s. Highs in the lower 70s. .MONDAY...Partly cloudy. Chance of showers and slight chance of thunderstorms in the afternoon. Highs in the lower 70s. $$ WYZ281-022200- Johnson County/Casper BLM- Including the cities of Buffalo and Kaycee 158 PM MDT Mon Sep 1 2025 .THIS AFTERNOON... Sky/weather.........Mostly sunny. Haze. Chance of thunder...0 percent. Max temperature.....76-81. 24 hr trend......3 degrees warmer. Min humidity........18-24 percent. 24 hr trend......5 percent drier. 20-foot winds.......Northeast winds around 10 mph with higher gusts. Ridge top winds.....Northeast around 15 mph. Chc of wetting rain.Zero percent. Transport winds.....North around 15 mph. Mixing Height.......9600-10200 ft agl. Smoke dispersal.....Very good. .TONIGHT... Sky/weather.........Mostly clear. Haze. Chance of thunder...0 percent. Min temperature.....54-59. 24 hr trend......4 degrees warmer. Max humidity........58-64 percent. 24 hr trend......13 percent drier. Humidity recovery...Good. 20-foot winds.......Northeast winds around 10 mph until 2100, then downslope/downvalley 4-7 mph. Gusts up to 15 mph. Ridge top winds.....Northeast around 10 mph until 2400, then northwest. Chc of wetting rain.Zero percent. Transport winds.....Northeast around 10 mph until 2400, then northwest. Mixing Height.......3800-5800 ft agl until 2400, then 400-600 ft agl. Smoke dispersal.....Fair to good until 2400, then poor. .TUESDAY... Sky/weather.........Mostly sunny. Haze. Chance of thunder...0 percent. Max temperature.....77-82. 24 hr trend......Unchanged. Min humidity........21-27 percent. 24 hr trend......3 percent wetter. 20-foot winds.......Upslope/upvalley 5-9 mph until 1200, then southeast around 10 mph until 1500, then northeast. Gusts up to 15 mph. Ridge top winds.....South around 10 mph until 1200, then southeast. 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 6800-8800 ft agl. Smoke dispersal.....Poor until 1200, then good. .TUESDAY NIGHT... Sky/weather.........Partly cloudy. Chance of thunder...0 percent. Min temperature.....52-57. 24 hr trend......1 degree cooler. Max humidity........65-71 percent. 24 hr trend......9 percent wetter. Humidity recovery...Good. 20-foot winds.......North winds around 10 mph until 2100, then downslope/downvalley 4-7 mph until 2400, then northwest around 10 mph. Gusts up to 15 mph. Ridge top winds.....Northwest 10 to 15 mph. Chc of wetting rain.Zero percent. Transport winds.....Northwest 10 to 15 mph. Mixing Height.......2200-4200 ft agl until 2400, then 400-800 ft agl. Smoke dispersal.....Poor. .WEDNESDAY... Sky/weather.........Mostly sunny. Chance of thunder...0 percent. Max temperature.....70-75. 24 hr trend......9 degrees cooler. Min humidity........38-44 percent. 24 hr trend......19 percent wetter. 20-foot winds.......North winds 10 to 15 mph with higher gusts. Ridge top winds.....North around 15 mph. Chc of wetting rain.Zero percent. Transport winds.....North 15 to 20 mph. Mixing Height.......1200-3200 ft agl until 1200, then 3800-5200 ft agl. Smoke dispersal.....Poor to fair. .Forecast days 3 through 7...... .WEDNESDAY THROUGH THURSDAY...Mostly clear. Lows 47 to 52. Highs around 80. North winds 10 to 15 mph. .FRIDAY THROUGH SATURDAY...Mostly clear. Lows 47 to 52. Highs 72 to 77. Winds generally less than 10 mph. .SUNDAY THROUGH MONDAY...Partly cloudy with slight chance of showers and thunderstorms. Lows in the mid 50s. Highs 78 to 83. $$ WYZ282-022200- South Bighorn Basin/Worland BLM- Including the cities of Ten Sleep, Thermopolis, and Worland 158 PM MDT Mon Sep 1 2025 .THIS AFTERNOON... Sky/weather.........Mostly sunny. Haze through the day. Chance of thunder...0 percent. Max temperature.....77-82. 24 hr trend......3 degrees warmer. Min humidity........15-21 percent. 24 hr trend......2 percent drier. 20-foot winds.......Northeast winds around 10 mph and gusty. Ridge top winds.....Northeast around 15 mph. Chc of wetting rain.Zero percent. Transport winds.....North around 15 mph. Mixing Height.......9400-10000 ft agl. Smoke dispersal.....Good to very good. .TONIGHT... Sky/weather.........Mostly clear. Haze. Chance of thunder...0 percent. Min temperature.....51-56. 24 hr trend......Unchanged. Max humidity........51-57 percent. 24 hr trend......1 percent drier. Humidity recovery...Moderate. 20-foot winds.......East winds around 10 mph until 2400, then south until 0300, then downslope/downvalley 4-7 mph. Gusts up to 15 mph. Ridge top winds.....East around 15 mph until 2400, then south. Chc of wetting rain.Zero percent. Transport winds.....East around 15 mph until 2400, then south. Mixing Height.......3800-5800 ft agl until 2400, then 400-800 ft agl. Smoke dispersal.....Fair to good until 2400, then poor. .TUESDAY... Sky/weather.........Mostly sunny. Haze. Chance of thunder...0 percent. Max temperature.....78-83. 24 hr trend......1 degree warmer. Min humidity........15-21 percent. 24 hr trend......1 percent wetter. 20-foot winds.......Upslope/upvalley 5-9 mph until 1500, then north around 10 mph. Gusts up to 15 mph. Ridge top winds.....South around 10 mph until 1200, then north. Chc of wetting rain.Zero percent. Transport winds.....South around 10 mph until 1200, then northwest. Mixing Height.......1200-3200 ft agl until 1200, then 7200-9200 ft agl. Smoke dispersal.....Poor until 1200, then good to very good. .TUESDAY NIGHT... Sky/weather.........Mostly clear. Chance of thunder...0 percent. Min temperature.....50-55. 24 hr trend......1 degree cooler. Max humidity........53-59 percent. 24 hr trend......5 percent wetter. Humidity recovery...Moderate. 20-foot winds.......North winds around 10 mph until 2100, then downslope/downvalley 4-7 mph until 2400, then west around 10 mph. Gusts up to 20 mph. Ridge top winds.....North around 15 mph until 2400, then west. Chc of wetting rain.Zero percent. Transport winds.....Northwest around 15 mph. Mixing Height.......4200-6200 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.....74-79. 24 hr trend......4 degrees cooler. Min humidity........24-30 percent. 24 hr trend......8 percent wetter. 20-foot winds.......Northwest winds around 10 mph until 1200, then north. 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 5200-7200 ft agl. Smoke dispersal.....Poor until 1200, then good to very good. .Forecast days 3 through 7...... .WEDNESDAY THROUGH THURSDAY...Mostly clear. Lows 51 to 56. Highs in the lower 80s. Northwest winds around 10 mph. .FRIDAY...Mostly clear. Slight chance of showers and thunderstorms. Lows in the lower 50s. Highs in the upper 70s. Winds generally less than 10 mph. .SATURDAY...Partly cloudy. Slight chance of showers and thunderstorms. Lows in the mid 50s. Highs in the lower 80s. Winds generally less than 10 mph. .SUNDAY THROUGH MONDAY...Partly cloudy with slight chance of showers and thunderstorms. Lows in the mid 50s. Highs in the lower 80s. $$ WYZ275-022200- North Bighorn Basin/Worland BLM- Including the cities of Greybull, Lovell, and Powell 158 PM MDT Mon Sep 1 2025 .THIS AFTERNOON... Sky/weather.........Mostly sunny. Haze. Chance of thunder...0 percent. Max temperature.....76-81. 24 hr trend......2 degrees warmer. Min humidity........16-22 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.....North around 15 mph. Mixing Height.......8800-9600 ft agl. Smoke dispersal.....Good to very good. .TONIGHT... Sky/weather.........Partly cloudy. Haze through the night. Chance of thunder...0 percent. Min temperature.....52-57. 24 hr trend......3 degrees warmer. Max humidity........50-56 percent. 24 hr trend......1 percent drier. Humidity recovery...Moderate. 20-foot winds.......Northeast winds around 10 mph until 2400, then downslope/downvalley 4-7 mph. Gusts up to 20 mph. Ridge top winds.....Northeast around 15 mph until 2400, then southwest. Chc of wetting rain.Zero percent. Transport winds.....Northeast around 15 mph until 2400, then southeast. Mixing Height.......3600-5600 ft agl until 2400, then 400-800 ft agl. Smoke dispersal.....Fair to good until 2400, then poor. .TUESDAY... Sky/weather.........Mostly sunny. Haze. Chance of thunder...0 percent. Max temperature.....76-81. 24 hr trend......Unchanged. Min humidity........17-23 percent. 24 hr trend......1 percent wetter. 20-foot winds.......Upslope/upvalley 5-9 mph until 1200, then southeast around 10 mph with higher gusts until 1500, then north with higher gusts. Ridge top winds.....South around 10 mph until 1200, then north. 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 6400-8400 ft agl. Smoke dispersal.....Poor until 1200, then good to very good. .TUESDAY NIGHT... Sky/weather.........Mostly clear. Chance of thunder...0 percent. Min temperature.....51-56. 24 hr trend......1 degree cooler. Max humidity........54-60 percent. 24 hr trend......8 percent wetter. Humidity recovery...Moderate. 20-foot winds.......North winds around 10 mph and gusty. Ridge top winds.....North around 15 mph. Chc of wetting rain.Zero percent. Transport winds.....North around 15 mph. Mixing Height.......4000-6000 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.....72-77. 24 hr trend......4 degrees cooler. Min humidity........27-33 percent. 24 hr trend......9 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 around 15 mph. Mixing Height.......1000-3000 ft agl until 1200, then 4600-6600 ft agl. Smoke dispersal.....Poor until 1200, then good. .Forecast days 3 through 7...... .WEDNESDAY THROUGH FRIDAY...Mostly clear. Lows 51 to 56. Highs 78 to 83. North winds 10 to 15 mph. .SATURDAY...Partly cloudy. Slight chance of showers. Lows in the mid 50s. Highs around 80. Winds generally less than 10 mph. .SUNDAY THROUGH MONDAY...Partly cloudy with slight chance of showers and thunderstorms. Lows in the mid 50s. Highs in the lower 80s. $$ WYZ276-022200- Cody Foothills- Including the cities of Clark, Cody, and Meeteetse 158 PM MDT Mon Sep 1 2025 .THIS AFTERNOON... Sky/weather.........Mostly sunny. Isolated showers and thunderstorms early in the evening. Haze through the day. Chance of precipitation 20 percent. Chance of thunder...10 percent. Max temperature.....78-83. 24 hr trend......2 degrees warmer. Min humidity........16-22 percent. 24 hr trend......Unchanged. 20-foot winds.......East winds around 10 mph with higher gusts. Ridge top winds.....East around 15 mph. Chc of wetting rain.Zero percent. Transport winds.....Southeast around 15 mph. Mixing Height.......9000-10200 ft agl. Smoke dispersal.....Very good. .TONIGHT... Sky/weather.........Partly cloudy. Haze through the night. Chance of thunder...0 percent. Min temperature.....53-58. 24 hr trend......1 degree warmer. Max humidity........44-50 percent. 24 hr trend......1 percent wetter. Humidity recovery...Moderate. 20-foot winds.......East winds around 10 mph until 2100, then downslope/downvalley 4-7 mph. Gusts up to 20 mph. Ridge top winds.....East around 10 mph until 2400, then west. Chc of wetting rain.Zero percent. Transport winds.....East around 10 mph until 2400, then southwest. Mixing Height.......3600-5600 ft agl until 2400, then 600-1000 ft agl. Smoke dispersal.....Fair to good until 2400, then poor. .TUESDAY... Sky/weather.........Mostly sunny then becoming partly cloudy. Haze through the day. Isolated showers and thunderstorms in the afternoon. Chance of precipitation 20 percent. Chance of thunder...10 percent. Max temperature.....78-83. 24 hr trend......Unchanged. Min humidity........19-25 percent. 24 hr trend......1 percent wetter. 20-foot winds.......Upslope/upvalley 5-9 mph until 1200, then northeast around 10 mph. Gusts up to 20 mph. Ridge top winds.....West around 10 mph until 1200, then northeast. Chc of wetting rain.Zero percent. Transport winds.....Northwest 10 to 15 mph. Mixing Height.......1600-3600 ft agl until 1200, then 6400-8400 ft agl. Smoke dispersal.....Poor until 1200, then good to very good. .TUESDAY NIGHT... Sky/weather.........Mostly clear. Chance of thunder...0 percent. Min temperature.....52-57. 24 hr trend......1 degree cooler. Max humidity........53-59 percent. 24 hr trend......10 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 600-1000 ft agl. Smoke dispersal.....Fair to good until 2400, then poor. .WEDNESDAY... Sky/weather.........Mostly sunny. Chance of thunder...0 percent. Max temperature.....74-79. 24 hr trend......4 degrees cooler. Min humidity........30-36 percent. 24 hr trend......9 percent wetter. 20-foot winds.......Northwest winds around 10 mph until 1200, then northeast. 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.......1200-3200 ft agl until 1200, then 4000-6000 ft agl. Smoke dispersal.....Poor to fair. .Forecast days 3 through 7...... .WEDNESDAY THROUGH THURSDAY...Mostly clear. Lows 50 to 55. Highs in the upper 70s. North winds 10 to 15 mph. .FRIDAY...Mostly clear. Slight chance of showers and thunderstorms. Lows in the lower 50s. Highs in the lower 70s. Winds generally less than 10 mph. .SATURDAY...Partly cloudy with chance of showers and slight chance of thunderstorms. Lows in the lower 50s. Highs in the mid 70s. Winds generally less than 10 mph. .SUNDAY THROUGH MONDAY...Partly cloudy with chance of showers and slight chance of thunderstorms. Lows in the mid 50s. Highs in the upper 70s. $$ WYZ287-022200- Owl Creek Mountains- 158 PM MDT Mon Sep 1 2025 .THIS AFTERNOON... Sky/weather.........Mostly sunny. Haze and patchy smoke. Chance of thunder...0 percent. Max temperature.....75-80. 24 hr trend......3 degrees warmer. Min humidity........15-21 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.......7800-9400 ft agl. Smoke dispersal.....Good to very good. .TONIGHT... Sky/weather.........Mostly clear. Patchy smoke early in the evening. Haze through the night. Chance of thunder...0 percent. Min temperature.....53-58. 24 hr trend......Unchanged. Max humidity........40-46 percent. 24 hr trend......Unchanged. Humidity recovery...Moderate. 20-foot winds.......Downslope/downvalley 4-7 mph until 2400, then south around 10 mph. Gusts up to 20 mph. Ridge top winds.....East around 10 mph until 2400, then south. Chc of wetting rain.Zero percent. Transport winds.....East around 10 mph until 2400, then south. Mixing Height.......3000-5000 ft agl until 2400, then 200-600 ft agl. Smoke dispersal.....Poor. .TUESDAY... Sky/weather.........Mostly sunny then becoming partly cloudy. Haze through the day. Isolated showers and thunderstorms early in the afternoon. Chance of precipitation 20 percent. Chance of thunder...10 percent. Max temperature.....75-80. 24 hr trend......Unchanged. Min humidity........17-23 percent. 24 hr trend......1 percent wetter. 20-foot winds.......Southwest winds around 10 mph until 0900, then upslope/upvalley 5-9 mph until 1200, then east around 10 mph. Gusts up to 20 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 northwest. Mixing Height.......800-2800 ft agl until 1200, then 6400-8400 ft agl. Smoke dispersal.....Poor until 1200, then good. .TUESDAY NIGHT... Sky/weather.........Partly cloudy. Chance of thunder...0 percent. Min temperature.....52-57. 24 hr trend......Unchanged. Max humidity........44-50 percent. 24 hr trend......5 percent wetter. Humidity recovery...Moderate. 20-foot winds.......Northwest winds 10 to 15 mph with gusts to around 25 mph. Ridge top winds.....Northwest 15 to 20 mph. Chc of wetting rain.Zero percent. Transport winds.....North 15 to 20 mph. Mixing Height.......2600-4600 ft agl until 2400, then 200-600 ft agl. Smoke dispersal.....Poor to fair. .WEDNESDAY... Sky/weather.........Mostly sunny. Chance of thunder...0 percent. Max temperature.....71-76. 24 hr trend......3 degrees cooler. Min humidity........25-31 percent. 24 hr trend......8 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. Chc of wetting rain.Zero percent. Transport winds.....North around 15 mph. Mixing Height.......1000-3000 ft agl until 1200, then 4600-6600 ft agl. Smoke dispersal.....Poor to fair. .Forecast days 3 through 7...... .WEDNESDAY THROUGH THURSDAY...Mostly clear. Lows 50 to 55. Highs in the mid 70s. North winds 10 to 15 mph. .FRIDAY...Mostly clear. Slight chance of showers and thunderstorms. Lows in the lower 50s. Highs around 70. Winds generally less than 10 mph. .SATURDAY...Partly cloudy with chance of showers and slight chance of thunderstorms. Lows in the lower 50s. Highs in the lower 70s. Winds generally less than 10 mph. .SUNDAY...Partly cloudy with chance of showers and slight chance of thunderstorms. Lows in the lower 50s. Highs in the mid 70s. .MONDAY...Partly cloudy. Chance of showers and slight chance of thunderstorms in the afternoon. Highs in the mid 70s. $$ WYZ286-022200- Absaroka Mountains/North Shoshone NF- Including the city of Pahaska 158 PM MDT Mon Sep 1 2025 .THIS AFTERNOON... Sky/weather.........Partly cloudy. Patchy smoke early in the evening. Haze through the day. Isolated showers and thunderstorms through the day. Chance of precipitation 20 percent. Chance of thunder...10 percent. Max temperature.....71-76. 24 hr trend......2 degrees warmer. Min humidity........19-25 percent. 24 hr trend......Unchanged. 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.....Southwest around 15 mph. Mixing Height.......8200-10200 ft agl. Smoke dispersal.....Very good. .TONIGHT... Sky/weather.........Partly cloudy. Isolated showers early in the evening. Haze through the night. Chance of showers 20 percent. Chance of thunder...0 percent. Min temperature.....47-52. 24 hr trend......3 degrees warmer. Max humidity........57-63 percent. 24 hr trend......1 percent drier. Humidity recovery...Good. 20-foot winds.......East winds around 10 mph until 2100, then downslope/downvalley 4-7 mph. Gusts up to 20 mph. Ridge top winds.....East around 10 mph until 2400, then southwest. Chc of wetting rain.Zero percent. Transport winds.....East around 10 mph until 2400, then south. Mixing Height.......3200-5200 ft agl until 2400, then 400-1000 ft agl. Smoke dispersal.....Fair to good until 2400, then poor. .TUESDAY... Sky/weather.........Mostly sunny then becoming partly cloudy. Haze through the day. Isolated showers late in the morning. Isolated thunderstorms in the afternoon. Chance of precipitation 20 percent. Chance of thunder...20 percent. Max temperature.....70-75. 24 hr trend......1 degree cooler. Min humidity........20-26 percent. 24 hr trend......1 percent wetter. 20-foot winds.......Upslope/upvalley 5-9 mph until 0900, then northwest around 10 mph until 1500, then north. Gusts up to 20 mph. Ridge top winds.....West around 10 mph until 1200, then north. Chc of wetting rain.Zero percent. Transport winds.....Northwest 10 to 15 mph. Mixing Height.......3200-5200 ft agl until 1200, then 7800-9800 ft agl. Smoke dispersal.....Poor to fair until 1200, then very good. .TUESDAY NIGHT... Sky/weather.........Partly cloudy. Chance of thunder...0 percent. Min temperature.....46-51. 24 hr trend......Unchanged. Max humidity........61-67 percent. 24 hr trend......3 percent wetter. Humidity recovery...Good. 20-foot winds.......North winds around 10 mph until 2400, then downslope/downvalley 4-7 mph until 0300, then northwest around 10 mph. Gusts up to 15 mph. Ridge top winds.....North 10 to 15 mph. Chc of wetting rain.Zero percent. Transport winds.....North 10 to 15 mph. Mixing Height.......2800-4800 ft agl until 2400, then 400-1000 ft agl. Smoke dispersal.....Poor to fair. .WEDNESDAY... Sky/weather.........Mostly sunny then becoming partly cloudy. Chance of thunder...0 percent. Max temperature.....68-73. 24 hr trend......1 degree cooler. Min humidity........28-34 percent. 24 hr trend......4 percent wetter. 20-foot winds.......Upslope/upvalley 5-9 mph until 1200, then north around 10 mph. Gusts up to 20 mph. Ridge top winds.....Northwest 10 to 15 mph. Chc of wetting rain.Zero percent. Transport winds.....Northwest 10 to 15 mph. Mixing Height.......2200-4200 ft agl until 1200, then 7000-9000 ft agl. Smoke dispersal.....Poor to fair until 1200, then good to very good. .Forecast days 3 through 7...... .WEDNESDAY NIGHT...Mostly clear. Lows in the upper 40s. West winds around 10 mph. .THURSDAY...Mostly clear. Slight chance of showers and thunderstorms. Lows in the lower 40s. Highs around 70. North winds around 10 mph. .FRIDAY...Partly cloudy with chance of showers and slight chance of thunderstorms. Lows in the mid 40s. Highs in the mid 60s. Winds generally less than 10 mph. .SATURDAY...Partly cloudy with chance of showers and slight chance of thunderstorms. Lows in the mid 40s. Highs in the mid 60s. Winds generally less than 10 mph. .SUNDAY...Partly cloudy with chance of showers and thunderstorms. Lows in the mid 40s. Highs in the mid 60s. .MONDAY...Partly cloudy. Slight chance of showers in the morning, then chance of showers and slight chance of thunderstorms in the afternoon. Highs in the mid 60s. $$ WYZ140-022200- Yellowstone National Park- Including the cities of Lake, Mammoth, and Old Faithful 158 PM MDT Mon Sep 1 2025 .THIS AFTERNOON... Sky/weather.........Partly cloudy. Isolated showers and thunderstorms early in the evening. Patchy smoke early in the evening. Haze through the day. Chance of precipitation 20 percent. Chance of thunder...10 percent. Max temperature.....74-79. 24 hr trend......2 degrees warmer. Min humidity........16-22 percent. 24 hr trend......3 percent drier. 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.....Southwest around 15 mph. Mixing Height.......9000-10200 ft agl. Smoke dispersal.....Good to very good. .TONIGHT... Sky/weather.........Partly cloudy. Haze through the night. Chance of thunder...0 percent. Min temperature.....42-47. 24 hr trend......3 degrees warmer. Max humidity........70-76 percent. 24 hr trend......4 percent drier. Humidity recovery...Excellent. 20-foot winds.......Downslope/downvalley 4-7 mph. Gusts up to 15 mph. Ridge top winds.....North around 10 mph until 2400, then east. Chc of wetting rain.Zero percent. Transport winds.....North around 10 mph until 2400, then southeast. Mixing Height.......3800-5800 ft agl until 2400, then 400-800 ft agl. Smoke dispersal.....Poor to fair until 2400, then poor. .TUESDAY... Sky/weather.........Mostly sunny. Haze through the day. Isolated showers and thunderstorms in the afternoon. Chance of precipitation 20 percent. Chance of thunder...10 percent. Max temperature.....73-78. 24 hr trend......Unchanged. Min humidity........19-25 percent. 24 hr trend......2 percent wetter. 20-foot winds.......Upslope/upvalley 5-9 mph until 1500, then northwest around 10 mph. Gusts up to 15 mph. Ridge top winds.....Southeast around 10 mph until 1200, then northwest. Chc of wetting rain.Zero percent. Transport winds.....South around 10 mph until 1200, then northwest. Mixing Height.......2400-4400 ft agl until 1200, then 8800-10800 ft agl. Smoke dispersal.....Poor until 1200, then good to very good. .TUESDAY NIGHT... Sky/weather.........Mostly clear. Chance of thunder...0 percent. Min temperature.....43-48. 24 hr trend......Unchanged. Max humidity........68-74 percent. 24 hr trend......Unchanged. Humidity recovery...Good. 20-foot winds.......Downslope/downvalley 4-7 mph. Gusts up to 15 mph. Ridge top winds.....Northeast around 10 mph. Chc of wetting rain.Zero percent. Transport winds.....Northeast around 10 mph. Mixing Height.......3600-5600 ft agl until 2400, then 400-800 ft agl. Smoke dispersal.....Fair to good until 2400, then poor. .WEDNESDAY... Sky/weather.........Mostly sunny. Chance of thunder...0 percent. Max temperature.....72-77. 24 hr trend......1 degree cooler. Min humidity........22-28 percent. 24 hr trend......3 percent wetter. 20-foot winds.......Upslope/upvalley 5-9 mph until 1500, then northwest around 10 mph. Gusts up to 15 mph. Ridge top winds.....Northeast around 10 mph until 1200, then northwest. Chc of wetting rain.Zero percent. Transport winds.....North 10 to 15 mph. Mixing Height.......2000-4000 ft agl until 1200, then 7600-9600 ft agl. Smoke dispersal.....Poor until 1200, then very good. .Forecast days 3 through 7...... .WEDNESDAY THROUGH THURSDAY...Mostly clear. Lows 40 to 45. Highs in the lower 70s. Winds generally less than 10 mph. .FRIDAY...Partly cloudy with slight chance of showers and thunderstorms. Lows in the lower 40s. Highs around 70. Winds generally less than 10 mph. .SATURDAY...Partly cloudy with chance of showers and slight chance of thunderstorms. Lows in the lower 40s. Highs in the upper 60s. Winds generally less than 10 mph. .SUNDAY...Partly cloudy with chance of showers and thunderstorms. Lows in the lower 40s. Highs in the mid 60s. .MONDAY...Partly cloudy. Slight chance of showers in the morning, then chance of showers and slight chance of thunderstorms in the afternoon. Highs in the mid 60s. $$ WYZ415-022200- North Zone Bridger Teton NF and Grand Teton NP- Including the cities of Jackson and Moran 158 PM MDT Mon Sep 1 2025 .THIS AFTERNOON... Sky/weather.........Mostly sunny. Haze through the day. Isolated showers and thunderstorms early in the evening. Chance of precipitation 20 percent. Chance of thunder...10 percent. Max temperature.....73-78. 24 hr trend......3 degrees warmer. Min humidity........19-25 percent. 24 hr trend......2 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.......8800-10400 ft agl. Smoke dispersal.....Good to very good. .TONIGHT... Sky/weather.........Mostly clear. Haze through the night. Chance of thunder...0 percent. Min temperature.....43-48. 24 hr trend......2 degrees warmer. Max humidity........64-70 percent. 24 hr trend......1 percent drier. Humidity recovery...Good. 20-foot winds.......Downslope/downvalley 4-7 mph. Gusts up to 15 mph. Ridge top winds.....North around 10 mph until 2400, then east. Chc of wetting rain.Zero percent. Transport winds.....Northwest around 10 mph until 2400, then east. Mixing Height.......3600-5600 ft agl until 2400, then 400-1000 ft agl. Smoke dispersal.....Poor. .TUESDAY... Sky/weather.........Mostly sunny. Haze through the day. Isolated showers and thunderstorms late in the afternoon. Chance of precipitation 20 percent. Chance of thunder...10 percent. Max temperature.....74-79. 24 hr trend......Unchanged. Min humidity........20-26 percent. 24 hr trend......Unchanged. 20-foot winds.......Upslope/upvalley 5-9 mph until 1500, then northwest around 10 mph. Gusts up to 15 mph. Ridge top winds.....Southeast around 10 mph until 1200, then northwest. Chc of wetting rain.Zero percent. Transport winds.....South around 10 mph until 1200, then northwest. Mixing Height.......2200-4200 ft agl until 1200, then 8200-10200 ft agl. Smoke dispersal.....Poor until 1200, then good to very good. .TUESDAY NIGHT... Sky/weather.........Partly cloudy then becoming clear. Chance of thunder...0 percent. Min temperature.....43-48. 24 hr trend......Unchanged. Max humidity........62-68 percent. 24 hr trend......2 percent wetter. Humidity recovery...Good. 20-foot winds.......Downslope/downvalley 4-7 mph. Gusts up to 15 mph. Ridge top winds.....Northeast around 10 mph. Chc of wetting rain.Zero percent. Transport winds.....Northeast around 10 mph. Mixing Height.......3400-5400 ft agl until 2400, then 400-1000 ft agl. Smoke dispersal.....Poor to fair until 2400, then poor. .WEDNESDAY... Sky/weather.........Mostly sunny. Chance of thunder...0 percent. Max temperature.....73-78. 24 hr trend......Unchanged. Min humidity........23-29 percent. 24 hr trend......2 percent wetter. 20-foot winds.......Upslope/upvalley 5-9 mph until 1500, then northwest around 10 mph. Gusts up to 15 mph. Ridge top winds.....Northeast around 10 mph until 1200, then northwest. Chc of wetting rain.Zero percent. Transport winds.....North 10 to 15 mph. Mixing Height.......2200-4200 ft agl until 1200, then 8000-10000 ft agl. Smoke dispersal.....Poor to fair until 1200, then good to very good. .Forecast days 3 through 7...... .WEDNESDAY NIGHT...Mostly clear. Lows in the mid 40s. Winds generally less than 10 mph. .THURSDAY...Mostly clear. Slight chance of showers and thunderstorms. Lows in the mid 40s. Highs in the lower 70s. Winds generally less than 10 mph. .FRIDAY...Partly cloudy with slight chance of showers and thunderstorms. Lows in the mid 40s. Highs around 70. Winds generally less than 10 mph. .SATURDAY...Partly cloudy with chance of showers and slight chance of thunderstorms. Lows in the mid 40s. Highs in the upper 60s. Winds generally less than 10 mph. .SUNDAY...Partly cloudy with chance of showers and thunderstorms. Lows in the mid 40s. Highs in the mid 60s. .MONDAY...Partly cloudy. Slight chance of showers in the morning, then chance of showers and slight chance of thunderstorms in the afternoon. Highs in the mid 60s. $$ WYZ416-022200- West Wind River Mountains/East Zone Bridger Teton NF- 158 PM MDT Mon Sep 1 2025 .THIS AFTERNOON... Sky/weather.........Mostly sunny. Haze through the day. Isolated showers and thunderstorms through the day. Chance of precipitation 20 percent. Chance of thunder...10 percent. Max temperature.....69-74. 24 hr trend......2 degrees warmer. Min humidity........18-24 percent. 24 hr trend......4 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.......8200-9200 ft agl. Smoke dispersal.....Good to very good. .TONIGHT... Sky/weather.........Mostly clear. Haze in the late evening and overnight. Chance of thunder...0 percent. Min temperature.....44-49. 24 hr trend......5 degrees warmer. Max humidity........60-66 percent. 24 hr trend......6 percent drier. Humidity recovery...Good. 20-foot winds.......Downslope/downvalley 4-7 mph until 2100, then east around 10 mph until 0300, then downslope/downvalley 4-7 mph. Gusts up to 15 mph. Ridge top winds.....East 10 to 15 mph. Chc of wetting rain.Zero percent. Transport winds.....Southeast 10 to 15 mph. Mixing Height.......3400-5400 ft agl until 2400, then 400-800 ft agl. Smoke dispersal.....Poor to fair. .TUESDAY... Sky/weather.........Mostly sunny then becoming partly cloudy. Haze in the morning. Isolated showers and thunderstorms in the afternoon. Chance of precipitation 20 percent. Chance of thunder...20 percent. Max temperature.....69-74. 24 hr trend......1 degree warmer. Min humidity........18-24 percent. 24 hr trend......Unchanged. 20-foot winds.......Upslope/upvalley 5-9 mph until 1200, then west around 10 mph. Gusts up to 15 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 northwest. Mixing Height.......3000-5000 ft agl until 1200, then 8800-10800 ft agl. Smoke dispersal.....Poor to fair until 1200, then very good. .TUESDAY NIGHT... Sky/weather.........Partly cloudy. Chance of thunder...0 percent. Min temperature.....42-47. 24 hr trend......Unchanged. Max humidity........62-68 percent. 24 hr trend......3 percent wetter. Humidity recovery...Good. 20-foot winds.......Northeast winds around 10 mph until 0300, then downslope/downvalley 4-7 mph. Gusts up to 15 mph. Ridge top winds.....Northeast around 10 mph. Chc of wetting rain.Zero percent. Transport winds.....Northeast around 10 mph. Mixing Height.......3200-5200 ft agl until 2400, then 400-800 ft agl. Smoke dispersal.....Poor to fair. .WEDNESDAY... Sky/weather.........Mostly sunny then becoming partly cloudy. Chance of thunder...0 percent. Max temperature.....68-73. 24 hr trend......Unchanged. Min humidity........23-29 percent. 24 hr trend......3 percent wetter. 20-foot winds.......Upslope/upvalley 5-9 mph until 1200, then northwest around 10 mph. Gusts up to 15 mph. Ridge top winds.....North around 10 mph until 1200, then northwest. Chc of wetting rain.Zero percent. Transport winds.....North 10 to 15 mph. Mixing Height.......2400-4400 ft agl until 1200, then 8000-10000 ft agl. Smoke dispersal.....Poor to fair until 1200, then very good. .Forecast days 3 through 7...... .WEDNESDAY NIGHT...Mostly clear. Lows in the mid 40s. Winds generally less than 10 mph. .THURSDAY...Mostly clear. Slight chance of showers and thunderstorms. Lows in the lower 40s. Highs around 70. North winds around 10 mph. .FRIDAY THROUGH SATURDAY...Partly cloudy with chance of showers and thunderstorms. Lows in the lower 40s. Highs 62 to 67. Winds generally less than 10 mph. .SUNDAY...Partly cloudy with chance of showers and thunderstorms. Lows in the lower 40s. Highs in the mid 60s. .MONDAY...Partly cloudy. Slight chance of showers in the morning, then chance of showers and slight chance of thunderstorms in the afternoon. Highs in the lower 60s. $$ WYZ288-022200- East Wind River Mountains/South Shoshone NF- Including the cities of Dubois and South Pass 158 PM MDT Mon Sep 1 2025 .THIS AFTERNOON... Sky/weather.........Mostly sunny. Haze through the day. Isolated showers through the day. Isolated thunderstorms early in the evening. Chance of precipitation 20 percent. Chance of thunder...10 percent. Max temperature.....71-76. 24 hr trend......2 degrees warmer. Min humidity........17-23 percent. 24 hr trend......3 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.....Southwest around 15 mph. Mixing Height.......8200-9600 ft agl. Smoke dispersal.....Good to very good. .TONIGHT... Sky/weather.........Mostly clear. Haze through the night. Chance of thunder...0 percent. Min temperature.....47-52. 24 hr trend......3 degrees warmer. Max humidity........51-57 percent. 24 hr trend......5 percent drier. Humidity recovery...Moderate. 20-foot winds.......Southeast winds around 10 mph until 2100, then downslope/downvalley 4-7 mph. Gusts up to 15 mph. Ridge top winds.....Southeast around 10 mph until 2400, then west. Chc of wetting rain.Zero percent. Transport winds.....South around 10 mph. Mixing Height.......3600-5600 ft agl until 2400, then 400-800 ft agl. Smoke dispersal.....Fair to good until 2400, then poor. .TUESDAY... Sky/weather.........Mostly sunny then becoming partly cloudy. Haze until late afternoon. Isolated showers and thunderstorms in the afternoon. Chance of precipitation 20 percent. Chance of thunder...20 percent. Max temperature.....70-75. 24 hr trend......Unchanged. Min humidity........18-24 percent. 24 hr trend......Unchanged. 20-foot winds.......Upslope/upvalley 5-9 mph until 1200, then north around 10 mph. Gusts up to 15 mph. Ridge top winds.....West around 10 mph until 1200, then north. Chc of wetting rain.Zero percent. Transport winds.....West 10 to 15 mph. Mixing Height.......2800-4800 ft agl until 1200, then 7800-9800 ft agl. Smoke dispersal.....Poor to fair until 1200, then good to very good. .TUESDAY NIGHT... Sky/weather.........Partly cloudy. Chance of thunder...0 percent. Min temperature.....46-51. 24 hr trend......Unchanged. Max humidity........53-59 percent. 24 hr trend......3 percent wetter. Humidity recovery...Moderate. 20-foot winds.......Northwest winds around 10 mph. Gusts up to 15 mph. Ridge top winds.....Northwest 10 to 15 mph. Chc of wetting rain.Zero percent. Transport winds.....North 10 to 15 mph. Mixing Height.......2600-4600 ft agl until 2400, then 400-800 ft agl. Smoke dispersal.....Poor. .WEDNESDAY... Sky/weather.........Mostly sunny then becoming partly cloudy. Chance of thunder...0 percent. Max temperature.....68-73. 24 hr trend......1 degree cooler. Min humidity........25-31 percent. 24 hr trend......5 percent wetter. 20-foot winds.......Northwest winds around 10 mph until 1200, then north. Gusts up to 15 mph. Ridge top winds.....North around 15 mph. Chc of wetting rain.Zero percent. Transport winds.....Northwest around 15 mph. Mixing Height.......2000-4000 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...... .WEDNESDAY NIGHT...Mostly clear. Lows in the upper 40s. Winds generally less than 10 mph. .THURSDAY...Mostly clear. Slight chance of showers and thunderstorms. Lows in the mid 40s. Highs in the lower 70s. North winds around 10 mph. .FRIDAY...Partly cloudy with chance of showers and slight chance of thunderstorms. Lows in the mid 40s. Highs in the mid 60s. Winds generally less than 10 mph. .SATURDAY...Partly cloudy with chance of showers and slight chance of thunderstorms. Lows in the mid 40s. Highs in the mid 60s. Winds generally less than 10 mph. .SUNDAY THROUGH MONDAY...Partly cloudy with chance of showers and slight chance of thunderstorms. Lows in the upper 40s. Highs in the upper 60s. $$ WYZ414-022200- Salt and Wyoming Ranges/West Zone Bridger Teton NF- Including the city of Afton 158 PM MDT Mon Sep 1 2025 .THIS AFTERNOON... Sky/weather.........Mostly sunny. Chance of thunder...0 percent. Max temperature.....73-78. 24 hr trend......3 degrees warmer. Min humidity........18-24 percent. 24 hr trend......1 percent wetter. 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.......9400-10400 ft agl. Smoke dispersal.....Good to very good. .TONIGHT... Sky/weather.........Mostly clear. Haze after midnight. Chance of thunder...0 percent. Min temperature.....43-48. 24 hr trend......3 degrees warmer. Max humidity........62-68 percent. 24 hr trend......1 percent drier. Humidity recovery...Good. 20-foot winds.......Downslope/downvalley 4-7 mph. Gusts up to 15 mph. Ridge top winds.....West around 10 mph until 2400, then east. Chc of wetting rain.Zero percent. Transport winds.....West around 10 mph until 2400, then east. Mixing Height.......4000-6000 ft agl until 2400, then 400-1000 ft agl. Smoke dispersal.....Poor to fair until 2400, then poor. .TUESDAY... Sky/weather.........Mostly sunny. Haze in the morning. Chance of thunder...0 percent. Max temperature.....73-78. 24 hr trend......1 degree warmer. Min humidity........17-23 percent. 24 hr trend......1 percent drier. 20-foot winds.......Upslope/upvalley 5-9 mph until 1200, then northwest around 10 mph. Gusts up to 15 mph. Ridge top winds.....Southeast around 10 mph until 1200, then northwest. Chc of wetting rain.Zero percent. Transport winds.....Northwest 10 to 15 mph. Mixing Height.......2800-4800 ft agl until 1200, then 8600-10600 ft agl. Smoke dispersal.....Poor to fair until 1200, then good to very good. .TUESDAY NIGHT... Sky/weather.........Mostly clear. Chance of thunder...0 percent. Min temperature.....44-49. 24 hr trend......Unchanged. Max humidity........62-68 percent. 24 hr trend......1 percent wetter. Humidity recovery...Good. 20-foot winds.......Northwest winds around 10 mph until 2100, then downslope/downvalley 4-7 mph. Gusts up to 15 mph. Ridge top winds.....North around 10 mph. Chc of wetting rain.Zero percent. Transport winds.....North around 10 mph. Mixing Height.......3800-5800 ft agl until 2400, then 400-1000 ft agl. Smoke dispersal.....Fair to good until 2400, then poor. .WEDNESDAY... Sky/weather.........Mostly sunny. Chance of thunder...0 percent. Max temperature.....74-79. 24 hr trend......Unchanged. Min humidity........19-25 percent. 24 hr trend......2 percent wetter. 20-foot winds.......Upslope/upvalley 5-9 mph until 1500, then northwest around 10 mph. Gusts up to 15 mph. Ridge top winds.....Northeast around 10 mph until 1200, then northwest. Chc of wetting rain.Zero percent. Transport winds.....North 10 to 15 mph. Mixing Height.......2400-4400 ft agl until 1200, then 8400-10400 ft agl. Smoke dispersal.....Poor to fair until 1200, then good to very good. .Forecast days 3 through 7...... .WEDNESDAY THROUGH THURSDAY...Mostly clear. Lows in the upper 40s. Highs in the mid 70s. Winds generally less than 10 mph. .FRIDAY...Partly cloudy with slight chance of showers and thunderstorms. Lows in the upper 40s. Highs in the lower 70s. Winds generally less than 10 mph. .SATURDAY...Partly cloudy with chance of showers and thunderstorms. Lows in the mid 40s. Highs in the upper 60s. Winds generally less than 10 mph. .SUNDAY...Partly cloudy with chance of showers and thunderstorms. Lows in the mid 40s. Highs in the upper 60s. .MONDAY...Partly cloudy. Slight chance of showers in the morning, then chance of showers and slight chance of thunderstorms in the afternoon. Highs in the mid 60s. $$ WYZ277>279-022200- 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 158 PM MDT Mon Sep 1 2025 .THIS AFTERNOON... Sky/weather.........Mostly sunny. Haze. Chance of thunder...0 percent. Max temperature.....72-77. 24 hr trend......1 degree warmer. Min humidity........14-20 percent. 24 hr trend......1 percent drier. 20-foot winds.......Upslope/upvalley 5-9 mph. Ridge top winds.....South around 10 mph. Chc of wetting rain.Zero percent. Transport winds.....West around 10 mph. Mixing Height.......9600-10600 ft agl. Smoke dispersal.....Good to very good. .TONIGHT... Sky/weather.........Mostly clear. Haze. Chance of thunder...0 percent. Min temperature.....46-51. 24 hr trend......2 degrees warmer. Max humidity........57-63 percent. 24 hr trend......3 percent drier. Humidity recovery...Good. 20-foot winds.......Downslope/downvalley 4-7 mph. Ridge top winds.....East around 10 mph. Chc of wetting rain.Zero percent. Transport winds.....East around 10 mph. Mixing Height.......4400-6400 ft agl until 2400, then 400-600 ft agl. Smoke dispersal.....Fair to good until 2400, then poor. .TUESDAY... Sky/weather.........Mostly sunny. Haze in the morning. Chance of thunder...0 percent. Max temperature.....74-79. 24 hr trend......1 degree warmer. Min humidity........16-22 percent. 24 hr trend......Unchanged. 20-foot winds.......Upslope/upvalley 5-9 mph. Gusts up to 15 mph. Ridge top winds.....East around 10 mph until 1200, then west. Chc of wetting rain.Zero percent. Transport winds.....West around 10 mph. Mixing Height.......1400-3400 ft agl until 1200, then 8400-10400 ft agl. Smoke dispersal.....Poor until 1200, then good to very good. .TUESDAY NIGHT... Sky/weather.........Mostly clear. Chance of thunder...0 percent. Min temperature.....46-51. 24 hr trend......Unchanged. Max humidity........55-61 percent. 24 hr trend......3 percent wetter. Humidity recovery...Moderate. 20-foot winds.......Northwest winds around 10 mph until 2100, then downslope/downvalley 4-7 mph. Gusts up to 15 mph. Ridge top winds.....North around 10 mph. Chc of wetting rain.Zero percent. Transport winds.....North around 10 mph. Mixing Height.......5000-7000 ft agl until 2400, then 400-600 ft agl. Smoke dispersal.....Fair to good until 2400, then poor. .WEDNESDAY... Sky/weather.........Mostly sunny. Chance of thunder...0 percent. Max temperature.....73-78. 24 hr trend......1 degree cooler. Min humidity........18-24 percent. 24 hr trend......3 percent wetter. 20-foot winds.......Upslope/upvalley 5-9 mph until 1500, then northwest around 10 mph. Gusts up to 15 mph. Ridge top winds.....Northeast around 10 mph until 1200, then northwest. Chc of wetting rain.Zero percent. Transport winds.....North 10 to 15 mph. Mixing Height.......2000-4000 ft agl until 1200, then 7600-9600 ft agl. Smoke dispersal.....Poor until 1200, then good to very good. .Forecast days 3 through 7...... .WEDNESDAY THROUGH THURSDAY...Mostly clear. Lows in the upper 40s. Highs around 80. Northwest winds around 10 mph. .FRIDAY...Partly cloudy. Slight chance of showers and thunderstorms. Lows in the upper 40s. Highs in the mid 70s. Winds generally less than 10 mph. .SATURDAY...Partly cloudy. Chance of showers and slight chance of thunderstorms. Lows in the upper 40s. Highs in the mid 70s. Winds generally less than 10 mph. .SUNDAY...Partly cloudy with chance of showers and thunderstorms. Lows in the upper 40s. Highs in the lower 70s. .MONDAY...Partly cloudy. Slight chance of showers in the morning, then chance of showers and slight chance of thunderstorms in the afternoon. Highs in the lower 70s. $$ WYZ289-022200- Granite/Green/Ferris/Rattlesnake Mountains- Including the city of Jeffrey City 158 PM MDT Mon Sep 1 2025 .THIS AFTERNOON... Sky/weather.........Sunny. Haze. Chance of thunder...0 percent. Max temperature.....73-78. 24 hr trend......2 degrees warmer. Min humidity........14-20 percent. 24 hr trend......2 percent drier. 20-foot winds.......Northeast winds around 10 mph and gusty. Ridge top winds.....Northeast around 15 mph. Chc of wetting rain.Zero percent. Transport winds.....Northwest around 15 mph. Mixing Height.......8800-9600 ft agl. Smoke dispersal.....Good to very good. .TONIGHT... Sky/weather.........Mostly clear. Haze through the night. Chance of thunder...0 percent. Min temperature.....51-56. 24 hr trend......2 degrees warmer. Max humidity........52-58 percent. 24 hr trend......8 percent drier. Humidity recovery...Moderate. 20-foot winds.......East winds around 10 mph until 0300, then downslope/downvalley 4-7 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.......3800-5800 ft agl until 2400, then 400-600 ft agl. Smoke dispersal.....Fair to good until 2400, then poor. .TUESDAY... Sky/weather.........Mostly sunny. Haze. Chance of thunder...0 percent. Max temperature.....74-79. 24 hr trend......1 degree warmer. Min humidity........14-20 percent. 24 hr trend......Unchanged. 20-foot winds.......Upslope/upvalley 5-9 mph until 1500, then northwest around 10 mph. Gusts up to 15 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.......1000-3000 ft agl until 1200, then 8000-10000 ft agl. Smoke dispersal.....Poor until 1200, then good to very good. .TUESDAY NIGHT... Sky/weather.........Mostly clear. Chance of thunder...0 percent. Min temperature.....51-56. 24 hr trend......Unchanged. Max humidity........51-57 percent. 24 hr trend......1 percent wetter. Humidity recovery...Moderate. 20-foot winds.......North winds around 10 mph until 2100, then downslope/downvalley 4-7 mph until 2400, then north around 10 mph. Gusts up to 20 mph. Ridge top winds.....North around 10 mph. Chc of wetting rain.Zero percent. Transport winds.....North around 15 mph. Mixing Height.......4000-6000 ft agl until 2400, then 200-600 ft agl. Smoke dispersal.....Fair to good until 2400, then poor. .WEDNESDAY... Sky/weather.........Mostly sunny. Chance of thunder...0 percent. Max temperature.....71-76. 24 hr trend......3 degrees cooler. Min humidity........19-25 percent. 24 hr trend......6 percent wetter. 20-foot winds.......North winds around 10 mph until 0900, then upslope/upvalley 5-9 mph until 1200, then north around 10 mph. Gusts up to 20 mph. Ridge top winds.....North 10 to 15 mph. Chc of wetting rain.Zero percent. Transport winds.....North around 15 mph. Mixing Height.......1600-3600 ft agl until 1200, then 6400-8400 ft agl. Smoke dispersal.....Poor until 1200, then good to very good. .Forecast days 3 through 7...... .WEDNESDAY NIGHT...Mostly clear. Lows in the lower 50s. Winds generally less than 10 mph. .THURSDAY THROUGH FRIDAY...Mostly clear with slight chance of showers and thunderstorms. Lows in the upper 40s. Highs 73 to 78. Northeast winds around 10 mph. .SATURDAY...Partly cloudy. Chance of showers and slight chance of thunderstorms. Lows in the lower 50s. Highs in the mid 70s. Winds generally less than 10 mph. .SUNDAY...Partly cloudy with chance of showers and slight chance of thunderstorms. Lows in the lower 50s. Highs in the mid 70s. .MONDAY...Partly cloudy. Chance of showers and slight chance of thunderstorms in the afternoon. Highs in the mid 70s. $$ WYZ300-022200- Casper Mountain- 158 PM MDT Mon Sep 1 2025 .THIS AFTERNOON... Sky/weather.........Sunny. Haze. Chance of thunder...0 percent. Max temperature.....72-77. 24 hr trend......4 degrees warmer. Min humidity........18-24 percent. 24 hr trend......6 percent drier. 20-foot winds.......North winds around 15 mph with higher gusts. Ridge top winds.....North around 15 mph. Chc of wetting rain.Zero percent. Transport winds.....North around 15 mph. Mixing Height.......7600-8400 ft agl. Smoke dispersal.....Very good. .TONIGHT... Sky/weather.........Mostly clear. Haze until early morning. Chance of thunder...0 percent. Min temperature.....51-56. 24 hr trend......1 degree warmer. Max humidity........52-58 percent. 24 hr trend......10 percent drier. Humidity recovery...Moderate. 20-foot winds.......East winds around 10 mph until 2400, then southeast. Gusts up to 20 mph. Ridge top winds.....East 10 to 15 mph. Chc of wetting rain.Zero percent. Transport winds.....East around 15 mph until 2400, then southeast. Mixing Height.......3000-5000 ft agl until 2400, then 200-400 ft agl. Smoke dispersal.....Fair to good until 2400, then poor. .TUESDAY... Sky/weather.........Mostly sunny. Haze in the late morning and afternoon. Chance of thunder...0 percent. Max temperature.....73-78. 24 hr trend......1 degree warmer. Min humidity........20-26 percent. 24 hr trend......1 percent wetter. 20-foot winds.......Upslope/upvalley 5-9 mph until 1500, then northwest around 10 mph. Gusts up to 15 mph. Ridge top winds.....Southeast around 10 mph until 1200, then northwest. Chc of wetting rain.Zero percent. Transport winds.....Southeast around 10 mph until 1200, then northwest. Mixing Height.......2200-4200 ft agl until 1200, then 8400-10400 ft agl. Smoke dispersal.....Poor until 1200, then good to very good. .TUESDAY NIGHT... Sky/weather.........Mostly clear. Chance of thunder...0 percent. Min temperature.....50-55. 24 hr trend......Unchanged. Max humidity........54-60 percent. 24 hr trend......4 percent wetter. Humidity recovery...Moderate. 20-foot winds.......Downslope/downvalley 4-7 mph. Gusts up to 15 mph. Ridge top winds.....Northeast around 10 mph until 2400, then west. Chc of wetting rain.Zero percent. Transport winds.....North around 10 mph. Mixing Height.......3600-5600 ft agl until 2400, then 200-400 ft agl. Smoke dispersal.....Fair to good until 2400, then poor. .WEDNESDAY... Sky/weather.........Mostly sunny. Chance of thunder...0 percent. Max temperature.....68-73. 24 hr trend......4 degrees cooler. Min humidity........31-37 percent. 24 hr trend......10 percent wetter. 20-foot winds.......Upslope/upvalley 5-9 mph until 1200, then north around 10 mph. Gusts up to 15 mph. Ridge top winds.....North 10 to 15 mph. Chc of wetting rain.Zero percent. Transport winds.....North 15 to 20 mph. Mixing Height.......1200-3200 ft agl until 1200, then 5200-7200 ft agl. Smoke dispersal.....Poor to fair until 1200, then good to very good. .Forecast days 3 through 7...... .WEDNESDAY NIGHT...Mostly clear. Lows around 50. Winds generally less than 10 mph. .THURSDAY...Mostly clear. Slight chance of showers and thunderstorms. Lows in the mid 40s. Highs in the mid 70s. North winds around 10 mph. .FRIDAY...Mostly clear. Lows in the upper 40s. Highs in the upper 60s. Winds generally less than 10 mph. .SATURDAY...Partly cloudy. Slight chance of showers and thunderstorms. Lows around 50. Highs in the lower 70s. Winds generally less than 10 mph. .SUNDAY...Partly cloudy with chance of showers and slight chance of thunderstorms. Lows in the lower 50s. Highs in the lower 70s. .MONDAY...Partly cloudy. Slight chance of showers and thunderstorms in the afternoon. Highs in the lower 70s. $$