647 FNUS55 KRIW 201016 FWFRIW Fire Weather Planning Forecast for Western and Central Wyoming National Weather Service Riverton WY 416 AM MDT Mon May 20 2024 .DISCUSSION... ...Yellowstone NP and Teton dispatch areas (includes fire weather zones 140...414...415...and 416)... A Pacific system will move into the area today and bring scattered showers and isolated thunderstorms. Snow showers are possible above 7500 feet bit accumulations should remain light. Relative humidity will remain above critical levels. Wind should remain light to moderate. Mixing and smoke dispersal will be generally fair to good in the afternoon. ...Cody dispatch area (includes fire weather zones 275...276... 282...283...285...286...287...288...and 289)... A Pacific system will move into the area today and bring scattered showers and isolated thunderstorms. The most numerous showers will occur in the southern zones. Snow showers are possible above 7000 feet with several inches of snow possible above 9000 feet. Relative humidity will remain above critical levels. Wind should remain light to moderate. Mixing and smoke dispersal will be generally fair to good in the afternoon. ...Casper dispatch area (includes fire weather zones 277...278... 279...280...281...285...289...and 300)... A Pacific system will move into the area today and bring scattered showers and isolated thunderstorms. The most numerous showers will occur in the southern zones. Snow showers are possible above 7000 feet with several inches of snow possible above 9000 feet. Relative humidity will remain above critical levels. Wind should remain light to moderate. Mixing and smoke dispersal will be generally fair to good in the afternoon. ...Thunderstorms imply strong gusty and erratic winds... ...Haines Index is high level Haines both day and night... WYZ280-211230- Natrona County/Casper BLM- Including the cities of Casper and Midwest 416 AM MDT Mon May 20 2024 .TODAY... Sky/weather.........Cloudy. Scattered rain showers in the morning, then numerous rain showers in the afternoon. Isolated thunderstorms early in the afternoon. Chance of precipitation 70 percent. Max temperature.....46-51. 24 hr trend......23 degrees cooler. Min humidity........60-66 percent. 24 hr trend......45 percent wetter. 20-foot winds.......Upslope/upvalley 5-9 mph until 0900, then east 10 to 15 mph with higher gusts. Ridge top winds.....East 10 to 15 mph until 1500, then around 20 mph. LAL.................1 until 1200, then 2. Chc of wetting rain.25 percent until 1200, then 60 percent. Transport winds.....East 15 to 20 mph. Mixing Height.......1200-3000 ft agl. Smoke dispersal.....Poor to fair. Haines Index........2. .TONIGHT... Sky/weather.........Cloudy. Isolated thunderstorms early in the evening. Numerous rain showers through the night. Chance of precipitation 70 percent. Min temperature.....33-38. 24 hr trend......2 degrees cooler. Max humidity........89-95 percent. 24 hr trend......14 percent wetter. Humidity recovery...Excellent. 20-foot winds.......Northeast winds 10 to 15 mph and gusty. Ridge top winds.....Northeast around 15 mph. LAL.................2 until 2400, then 1. Chc of wetting rain.65 percent. Transport winds.....Northeast around 15 mph. Mixing Height.......1200-2400 ft agl. Smoke dispersal.....Poor. Haines Index........2. .TUESDAY... Sky/weather.........Cloudy. Rain showers through the day. Snow showers late in the morning. Isolated thunderstorms in the afternoon. No snow accumulation. Chance of precipitation 90 percent. Max temperature.....42-47. 24 hr trend......4 degrees cooler. Min humidity........74-80 percent. 24 hr trend......18 percent wetter. 20-foot winds.......Northeast winds 10 to 15 mph with higher gusts. Ridge top winds.....North around 15 mph. LAL.................1 until 1200, then 2. Chc of wetting rain.77 percent. Transport winds.....North around 15 mph. Mixing Height.......1400-3400 ft agl. Smoke dispersal.....Poor to fair. Haines Index........3. .Forecast days 3 through 7...... .TUESDAY NIGHT...Partly cloudy. Scattered showers and isolated thunderstorms in the evening, then isolated showers after midnight. Lows in the lower 30s. Winds generally less than 10 mph. .WEDNESDAY...Warmer. Partly cloudy. Lows in the upper 30s. Highs in the lower 60s. Southwest winds around 10 mph. .THURSDAY...Partly cloudy with chance of showers, slight chance of thunderstorms and snow showers. Lows in the mid 30s. Highs in the lower 60s. West winds around 20 mph. .FRIDAY...Partly cloudy with slight chance of showers, thunderstorms and snow showers. Lows in the upper 30s. Highs in the lower 60s. West winds around 15 mph. .SATURDAY...Partly cloudy with slight chance of showers and thunderstorms. Lows in the lower 40s. Highs around 70. .SUNDAY...Partly cloudy. Chance of showers and slight chance of thunderstorms in the afternoon. Highs in the mid 60s. $$ WYZ283-211230- Upper Wind River Basin/Wind River Basin- Including the cities of Crowheart, Lander, Riverton, and Shoshoni 416 AM MDT Mon May 20 2024 .TODAY... Sky/weather.........Cloudy. Scattered rain showers and isolated snow showers in the morning, then numerous rain showers and isolated thunderstorms in the afternoon. No snow accumulation. Chance of precipitation 70 percent. Max temperature.....49-54. 24 hr trend......17 degrees cooler. Min humidity........50-56 percent. 24 hr trend......40 percent wetter. 20-foot winds.......Upslope/upvalley 5-9 mph until 1200, then east around 10 mph. Gusts up to 15 mph. Ridge top winds.....East 10 to 15 mph. LAL.................1 until 1200, then 2. Chc of wetting rain.5 percent until 1200, then 35 percent. Transport winds.....Southeast 10 to 15 mph. Mixing Height.......1200-2800 ft agl until 1200, then 4200-5400 ft agl. Smoke dispersal.....Poor to fair. Haines Index........3. .TONIGHT... Sky/weather.........Cloudy. Numerous rain showers and isolated thunderstorms in the evening, then rain showers after midnight. Snow showers early in the morning. Little or no snow accumulation. Chance of precipitation 90 percent. Min temperature.....32-37. 24 hr trend......3 degrees cooler. Max humidity........88-94 percent. 24 hr trend......18 percent wetter. Humidity recovery...Excellent. 20-foot winds.......Northeast winds around 10 mph until 2400, then north. Gusts up to 15 mph. Ridge top winds.....Northeast around 15 mph until 2400, then north. LAL.................2 until 2400, then 1. Chc of wetting rain.72 percent. Transport winds.....East around 15 mph until 2400, then north. Mixing Height.......1400-3200 ft agl. Smoke dispersal.....Poor. Haines Index........3. .TUESDAY... Sky/weather.........Cloudy. Rain showers and snow showers in the morning, then numerous rain showers and isolated thunderstorms in the afternoon. Little or no snow accumulation. Chance of precipitation 90 percent. Max temperature.....41-46. 24 hr trend......6 degrees cooler. Min humidity........67-73 percent. 24 hr trend......20 percent wetter. 20-foot winds.......North winds around 10 mph and gusty. Ridge top winds.....North around 15 mph. LAL.................1 until 1200, then 2. Chc of wetting rain.80 percent until 1200, then 70 percent. Transport winds.....Northwest around 15 mph. Mixing Height.......1200-2400 ft agl until 1200, then 3200-4000 ft agl. Smoke dispersal.....Poor to fair. Haines Index........3. .Forecast days 3 through 7...... .TUESDAY NIGHT...Partly cloudy. Scattered showers and isolated thunderstorms in the evening. Lows in the lower 30s. Winds generally less than 10 mph. .WEDNESDAY...Warmer. Partly cloudy with slight chance of showers and thunderstorms. Lows around 40. Highs in the lower 60s. Southwest winds around 10 mph. .THURSDAY...Partly cloudy with chance of showers, slight chance of thunderstorms and snow showers. Lows in the mid 30s. Highs in the upper 50s. West winds around 15 mph. .FRIDAY...Partly cloudy. Slight chance of showers, thunderstorms and snow showers. Lows around 40. Highs in the lower 60s. West winds around 10 mph. .SATURDAY...Partly cloudy with slight chance of showers and thunderstorms. Lows in the lower 40s. Highs in the upper 60s. .SUNDAY...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. $$ WYZ285-211230- South Bighorn Mountains- 416 AM MDT Mon May 20 2024 ...WINTER WEATHER ADVISORY IN EFFECT FROM 6 PM THIS EVENING TO 6 PM MDT TUESDAY... .TODAY... Sky/weather.........Cloudy. Scattered rain showers in the morning. Scattered snow showers through the day. Numerous rain showers and isolated thunderstorms in the afternoon. Little or no snow accumulation. Chance of precipitation 70 percent. Max temperature.....44-49. 24 hr trend......17 degrees cooler. Min humidity........56-62 percent. 24 hr trend......38 percent wetter. 20-foot winds.......Upslope/upvalley 5-9 mph until 0900, then southeast 10 to 15 mph with higher gusts. Ridge top winds.....Southeast 10 to 15 mph. LAL.................1 until 1200, then 2. Chc of wetting rain.5 percent until 1200, then 30 percent. Transport winds.....Southeast 10 to 15 mph. Mixing Height.......600-2600 ft agl until 1200, then 3400-4400 ft agl. Smoke dispersal.....Poor to fair. Haines Index........2. .TONIGHT... Sky/weather.........Cloudy. Numerous rain showers, snow showers and isolated thunderstorms in the evening, then rain showers and snow showers after midnight. Snow accumulation up to 2 inches. Chance of precipitation 90 percent. Min temperature.....30-35. 24 hr trend......Unchanged. Max humidity........87-93 percent. 24 hr trend......6 percent wetter. Humidity recovery...Excellent. 20-foot winds.......Northeast winds 10 to 15 mph until 0300, then north. Gusts up to 20 mph. Ridge top winds.....Northeast 15 to 20 mph until 0300, then north. LAL.................2 until 2400, then 1. Chc of wetting rain.65 percent until 2400, then 80 percent. Transport winds.....East 15 to 20 mph until 0300, then northeast. Mixing Height.......1000-2800 ft agl. Smoke dispersal.....Poor. Haines Index........2. .TUESDAY... Sky/weather.........Cloudy. Snow showers and rain showers through the day. Isolated thunderstorms in the afternoon. Snow accumulation up to 4 inches. Chance of precipitation near 100 percent. Max temperature.....36-41. 24 hr trend......7 degrees cooler. Min humidity........73-79 percent. 24 hr trend......20 percent wetter. 20-foot winds.......North winds 10 to 15 mph with higher gusts. Ridge top winds.....North around 15 mph. LAL.................1 until 1200, then 2. Chc of wetting rain.92 percent. Transport winds.....North around 15 mph. Mixing Height.......1200-2800 ft agl. Smoke dispersal.....Poor. Haines Index........3. .Forecast days 3 through 7...... .TUESDAY NIGHT...Partly cloudy. Scattered showers, snow showers and isolated thunderstorms in the evening, then isolated showers and snow showers after midnight. Lows around 30. West winds around 10 mph. .WEDNESDAY...Warmer. Partly cloudy with slight chance of showers, thunderstorms and snow showers. Lows in the upper 30s. Highs in the mid 50s. Southwest winds around 10 mph. .THURSDAY...Partly cloudy with showers likely with possible snow showers and thunderstorms. Lows in the lower 30s. Highs in the lower 50s. West winds around 15 mph. .FRIDAY...Partly cloudy with chance of showers, snow showers and slight chance of thunderstorms. Lows in the upper 30s. Highs in the lower 50s. West winds around 15 mph. .SATURDAY...Partly cloudy with chance of showers and slight chance of thunderstorms. Lows in the lower 40s. Highs in the lower 60s. .SUNDAY...Partly cloudy. Slight chance of showers in the morning, then chance of showers and slight chance of thunderstorms in the afternoon. Highs in the upper 50s. $$ WYZ281-211230- Johnson County/Casper BLM- Including the cities of Buffalo and Kaycee 416 AM MDT Mon May 20 2024 .TODAY... Sky/weather.........Cloudy. Isolated rain showers in the morning. Scattered rain showers late in the morning. Isolated thunderstorms early in the afternoon. Chance of precipitation 50 percent. Max temperature.....48-53. 24 hr trend......10 degrees cooler. Min humidity........48-54 percent. 24 hr trend......11 percent wetter. 20-foot winds.......Upslope/upvalley 5-9 mph until 1200, then east around 10 mph. Gusts up to 15 mph. Ridge top winds.....Northeast around 10 mph until 1200, then east. LAL.................1 until 1200, then 2. Chc of wetting rain.Zero percent until 1200, then 20 percent. Transport winds.....North around 10 mph until 0900, then southeast. Mixing Height.......600-800 ft agl until 0900, then 2800-4800 ft agl. Smoke dispersal.....Poor to fair. Haines Index........2. .TONIGHT... Sky/weather.........Cloudy. Isolated thunderstorms early in the evening. Scattered rain showers in the evening, then numerous rain showers after midnight. Chance of precipitation 70 percent. Min temperature.....34-39. 24 hr trend......1 degree warmer. Max humidity........84-90 percent. 24 hr trend......8 percent wetter. Humidity recovery...Excellent. 20-foot winds.......Northeast winds around 10 mph until 2400, then north. Gusts up to 15 mph. Ridge top winds.....Northeast around 15 mph until 2400, then north. LAL.................2 until 2400, then 1. Chc of wetting rain.45 percent until 2400, then 70 percent. Transport winds.....Northeast around 15 mph until 0300, then north. Mixing Height.......1200-3200 ft agl. Smoke dispersal.....Poor. Haines Index........2. .TUESDAY... Sky/weather.........Cloudy. Rain showers through the day. Isolated thunderstorms in the afternoon. Chance of precipitation near 100 percent. Max temperature.....45-50. 24 hr trend......5 degrees cooler. Min humidity........66-72 percent. 24 hr trend......18 percent wetter. 20-foot winds.......North winds 10 to 15 mph with higher gusts. Ridge top winds.....North 15 to 20 mph. LAL.................1 until 1200, then 2. Chc of wetting rain.85 percent. Transport winds.....North 15 to 20 mph. Mixing Height.......1200-3000 ft agl. Smoke dispersal.....Poor to fair. Haines Index........3. .Forecast days 3 through 7...... .TUESDAY NIGHT...Partly cloudy. Scattered showers and isolated thunderstorms in the evening. Lows in the mid 30s. Winds generally less than 10 mph. .WEDNESDAY...Warmer. Partly cloudy. Lows around 40. Highs in the mid 60s. Southwest winds around 10 mph. .THURSDAY...Partly cloudy with chance of showers and slight chance of thunderstorms. Lows in the upper 30s. Highs in the lower 60s. West winds around 15 mph. .FRIDAY...Partly cloudy with chance of showers and slight chance of thunderstorms. Lows around 40. Highs in the lower 60s. West winds around 10 mph. .SATURDAY...Partly cloudy. Slight chance of showers and thunderstorms. Lows in the mid 40s. Highs in the lower 70s. .SUNDAY...Partly cloudy. Chance of showers and slight chance of thunderstorms in the afternoon. Highs in the mid 60s. $$ WYZ282-211230- South Bighorn Basin/Worland BLM- Including the cities of Ten Sleep, Thermopolis, and Worland 416 AM MDT Mon May 20 2024 .TODAY... Sky/weather.........Cloudy. Isolated rain showers in the morning. Scattered rain showers in the afternoon. Isolated thunderstorms early in the afternoon. Chance of precipitation 50 percent. Max temperature.....48-53. 24 hr trend......13 degrees cooler. Min humidity........45-51 percent. 24 hr trend......18 percent wetter. 20-foot winds.......Upslope/upvalley 5-9 mph until 1500, then east around 10 mph and gusty. Ridge top winds.....Northwest around 5 mph until 0900, then northeast until 1200, then east. LAL.................1 until 1200, then 2. Chc of wetting rain.Zero percent until 1200, then 15 percent. Transport winds.....West around 5 mph until 0900, then southeast until 1200, then 10 to 15 mph. Mixing Height.......600 ft agl until 0900. 4600-6600 ft agl after 1200. Smoke dispersal.....Poor to fair. Haines Index........3. .TONIGHT... Sky/weather.........Cloudy. Isolated thunderstorms early in the evening. Numerous rain showers in the evening, then rain showers after midnight. Chance of precipitation 90 percent. Min temperature.....30-35. 24 hr trend......Unchanged. Max humidity........88-94 percent. 24 hr trend......14 percent wetter. Humidity recovery...Excellent. 20-foot winds.......Northeast winds around 10 mph until 2100, then northwest. Gusts up to 20 mph. Ridge top winds.....Northeast around 15 mph until 2100, then northwest. LAL.................2 until 2400, then 1. Chc of wetting rain.65 percent until 2400, then 85 percent. Transport winds.....Northeast around 15 mph until 2400, then northwest. Mixing Height.......3600-4000 ft agl until 2100, then 1400-1800 ft agl. Smoke dispersal.....Poor to fair. Haines Index........2. .TUESDAY... Sky/weather.........Cloudy. Rain showers through the day. Isolated thunderstorms in the afternoon. Chance of precipitation near 100 percent. Max temperature.....41-46. 24 hr trend......7 degrees cooler. Min humidity........63-69 percent. 24 hr trend......21 percent wetter. 20-foot winds.......Northwest winds around 10 mph with higher gusts. Ridge top winds.....Northwest around 15 mph. LAL.................1 until 1200, then 2. Chc of wetting rain.82 percent. Transport winds.....Northwest around 15 mph. Mixing Height.......1400-3400 ft agl. Smoke dispersal.....Poor to fair. Haines Index........3. .Forecast days 3 through 7...... .TUESDAY NIGHT...Partly cloudy. Scattered showers and isolated thunderstorms in the evening. Lows in the mid 30s. Winds generally less than 10 mph. .WEDNESDAY...Warmer. Partly cloudy with slight chance of showers and thunderstorms. Lows around 40. Highs in the lower 60s. South winds around 10 mph. .THURSDAY...Mostly cloudy. Showers likely and slight chance of thunderstorms. Lows in the mid 30s. Highs in the upper 50s. West winds around 10 mph. .FRIDAY...Partly cloudy. Slight chance of showers and thunderstorms. Lows in the lower 40s. Highs in the lower 60s. Winds generally less than 10 mph. .SATURDAY...Partly cloudy with slight chance of showers and thunderstorms. Lows in the mid 40s. Highs around 70. .SUNDAY...Partly cloudy. Chance of showers and slight chance of thunderstorms in the afternoon. Highs in the mid 60s. $$ WYZ275-211230- North Bighorn Basin/Worland BLM- Including the cities of Greybull, Lovell, and Powell 416 AM MDT Mon May 20 2024 .TODAY... Sky/weather.........Mostly cloudy then becoming partly cloudy then becoming mostly cloudy. Isolated rain showers in the morning, then scattered rain showers and isolated thunderstorms in the afternoon. Chance of precipitation 50 percent. Max temperature.....47-52. 24 hr trend......6 degrees cooler. Min humidity........43-49 percent. 24 hr trend......4 percent wetter. 20-foot winds.......Upslope/upvalley 5-9 mph until 1200. Winds north around 10 mph after 1500. Gusts up to 15 mph. Ridge top winds.....Northwest around 10 mph until 1200, then north. LAL.................1 until 1200, then 2. Chc of wetting rain.Less than 5 percent. Transport winds.....Northwest around 10 mph until 0900, then northeast until 1200, then southwest until 1500, then north. Mixing Height.......600 ft agl until 0900. 5400-7400 ft agl after 1200. Smoke dispersal.....Poor to fair until 1500, then good. Haines Index........3. .TONIGHT... Sky/weather.........Cloudy. Scattered rain showers and isolated thunderstorms early in the evening, then numerous rain showers late in the evening. Rain showers after midnight. Chance of precipitation near 100 percent. Min temperature.....32-37. 24 hr trend......1 degree warmer. Max humidity........80-86 percent. 24 hr trend......9 percent wetter. Humidity recovery...Excellent. 20-foot winds.......Northwest winds 10 to 15 mph with gusts to around 25 mph. Ridge top winds.....Northwest 15 to 20 mph. LAL.................2 until 2400, then 1. Chc of wetting rain.30 percent until 2400, then 75 percent. Transport winds.....North 15 to 20 mph. Mixing Height.......4200-4800 ft agl until 2100, then 1200-1800 ft agl. Smoke dispersal.....Poor to fair. Haines Index........3. .TUESDAY... Sky/weather.........Mostly cloudy. Rain showers in the morning, then numerous rain showers and isolated thunderstorms in the afternoon. Chance of precipitation near 100 percent. Max temperature.....44-49. 24 hr trend......3 degrees cooler. Min humidity........54-60 percent. 24 hr trend......8 percent wetter. 20-foot winds.......North winds 10 to 15 mph. Gusts up to 25 mph until 1500, then 15 mph. Ridge top winds.....North 15 to 20 mph. LAL.................1 until 1200, then 2. Chc of wetting rain.80 percent until 1200, then 35 percent. Transport winds.....North 15 to 20 mph. Mixing Height.......1200-2000 ft agl until 1200, then 3200-4800 ft agl. Smoke dispersal.....Poor to fair. Haines Index........3. .Forecast days 3 through 7...... .TUESDAY NIGHT...Partly cloudy. Isolated showers and thunderstorms in the evening. Lows in the mid 30s. Winds generally less than 10 mph. .WEDNESDAY...Warmer. Partly cloudy. Slight chance of showers and thunderstorms. Lows around 40. Highs in the mid 60s. South winds around 10 mph. .THURSDAY...Mostly cloudy with showers likely and slight chance of thunderstorms. Lows in the mid 30s. Highs in the mid 50s. Northwest winds around 10 mph. .FRIDAY...Partly cloudy with chance of showers and slight chance of thunderstorms. Lows in the lower 40s. Highs in the lower 60s. South winds around 10 mph. .SATURDAY...Partly cloudy with slight chance of showers and thunderstorms. Lows in the lower 40s. Highs in the upper 60s. .SUNDAY...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. $$ WYZ276-211230- Cody Foothills- Including the cities of Clark, Cody, and Meeteetse 416 AM MDT Mon May 20 2024 .TODAY... Sky/weather.........Mostly cloudy then becoming partly cloudy then becoming mostly cloudy. Scattered rain showers and snow showers in the morning, then numerous rain showers and isolated thunderstorms in the afternoon. No snow accumulation. Chance of precipitation 70 percent. Max temperature.....48-53. 24 hr trend......6 degrees cooler. Min humidity........41-47 percent. 24 hr trend......7 percent wetter. 20-foot winds.......Upslope/upvalley 5-9 mph until 1200, then northeast 10 to 15 mph with higher gusts. Ridge top winds.....North around 10 mph until 0900, then northeast. LAL.................1 until 1200, then 2. Chc of wetting rain.Zero percent until 1200, then 30 percent. Transport winds.....North around 10 mph until 0900, then northeast. Mixing Height.......600 ft agl until 0900. 5000-5600 ft agl after 1200. Smoke dispersal.....Poor until 1200, then good. Haines Index........3. .TONIGHT... Sky/weather.........Cloudy. Isolated thunderstorms early in the evening. Numerous rain showers through the night. Snow showers in the late evening and overnight. Snow accumulation up to 1 inch. Chance of precipitation 90 percent. Min temperature.....32-37. 24 hr trend......1 degree warmer. Max humidity........80-86 percent. 24 hr trend......8 percent wetter. Humidity recovery...Excellent. 20-foot winds.......North winds around 15 mph and gusty. Ridge top winds.....North 15 to 20 mph. LAL.................2 until 2400, then 1. Chc of wetting rain.65 percent. Transport winds.....North 15 to 20 mph. Mixing Height.......1200-3200 ft agl until 0300, then 1000-1200 ft agl. Smoke dispersal.....Poor to fair. Haines Index........3. .TUESDAY... Sky/weather.........Mostly cloudy. Rain showers in the morning. Snow showers through the day. Numerous rain showers and isolated thunderstorms in the afternoon. Snow accumulation up to 2 inches. Chance of precipitation 90 percent. Max temperature.....45-50. 24 hr trend......2 degrees cooler. Min humidity........51-57 percent. 24 hr trend......9 percent wetter. 20-foot winds.......North winds 10 to 15 mph with gusts to around 25 mph. Ridge top winds.....North 15 to 20 mph. LAL.................1 until 1200, then 2. Chc of wetting rain.70 percent until 1200, then 45 percent. Transport winds.....North 20 to 25 mph until 1500, then around 15 mph. Mixing Height.......1000-2200 ft agl until 1200, then 3200-4200 ft agl. Smoke dispersal.....Poor to fair. Haines Index........3. .Forecast days 3 through 7...... .TUESDAY NIGHT...Partly cloudy. Isolated showers and thunderstorms in the evening. Lows in the mid 30s. Winds generally less than 10 mph. .WEDNESDAY...Mostly cloudy with chance of showers and slight chance of thunderstorms. Lows in the upper 30s. Highs in the upper 50s. Southwest winds around 10 mph. .THURSDAY...Mostly cloudy with showers likely with possible snow showers and thunderstorms. Lows in the mid 30s. Highs in the lower 50s. West winds around 15 mph. .FRIDAY...Partly cloudy with chance of showers, slight chance of thunderstorms and snow showers. Lows around 40. Highs in the upper 50s. Southwest winds around 10 mph. .SATURDAY...Partly cloudy with chance of showers and slight chance of thunderstorms. Lows in the lower 40s. Highs in the mid 60s. .SUNDAY...Partly cloudy. Slight chance of showers in the morning, then chance of showers and slight chance of thunderstorms in the afternoon. Highs around 60. $$ WYZ287-211230- Owl Creek Mountains- 416 AM MDT Mon May 20 2024 .TODAY... Sky/weather.........Cloudy. Scattered rain showers and snow showers in the morning, then numerous rain showers and isolated thunderstorms in the afternoon. No snow accumulation. Chance of precipitation 70 percent. Max temperature.....44-49. 24 hr trend......14 degrees cooler. Min humidity........49-55 percent. 24 hr trend......32 percent wetter. 20-foot winds.......Upslope/upvalley 5-9 mph until 0900, then east around 10 mph with higher gusts. Ridge top winds.....East 10 to 15 mph. LAL.................1 until 1200, then 2. Chc of wetting rain.Zero percent until 1200, then 40 percent. Transport winds.....Southeast 10 to 15 mph. Mixing Height.......800-1000 ft agl until 0900. 4800-5600 ft agl after 1500. Smoke dispersal.....Poor until 1200, then fair to good. Haines Index........3. .TONIGHT... Sky/weather.........Cloudy. Isolated thunderstorms in the evening. Rain showers through the night. Snow showers in the late evening and overnight. Snow accumulation up to 3 inches. Chance of precipitation near 100 percent. Min temperature.....28-33. 24 hr trend......2 degrees cooler. Max humidity........88-94 percent. 24 hr trend......18 percent wetter. Humidity recovery...Excellent. 20-foot winds.......North winds 10 to 15 mph and gusty. Ridge top winds.....North 15 to 20 mph. LAL.................2 until 2400, then 1. Chc of wetting rain.87 percent. Transport winds.....North 15 to 20 mph. Mixing Height.......1200-3200 ft agl. Smoke dispersal.....Poor to fair. Haines Index........2. .TUESDAY... Sky/weather.........Cloudy. Rain showers and snow showers through the day. Isolated thunderstorms in the afternoon. Snow accumulation up to 4 inches. Chance of precipitation 90 percent. Max temperature.....34-39. 24 hr trend......8 degrees cooler. Min humidity........74-80 percent. 24 hr trend......25 percent wetter. 20-foot winds.......North winds around 15 mph with gusts to around 25 mph. Ridge top winds.....North 15 to 20 mph. LAL.................1 until 1200, then 2. Chc of wetting rain.85 percent. Transport winds.....North 20 to 25 mph until 1500, then around 15 mph. Mixing Height.......1000-2800 ft agl until 1500, then 3000-3200 ft agl. Smoke dispersal.....Poor to fair. Haines Index........3. .Forecast days 3 through 7...... .TUESDAY NIGHT...Partly cloudy. Scattered showers, snow showers and isolated thunderstorms in the evening. Lows in the lower 30s. Winds generally less than 10 mph. .WEDNESDAY...Warmer. Partly cloudy with chance of showers and slight chance of thunderstorms. Lows in the upper 30s. Highs in the mid 50s. Southwest winds around 10 mph. .THURSDAY...Partly cloudy. Showers likely with possible snow showers and thunderstorms. Lows in the lower 30s. Highs in the lower 50s. West winds around 15 mph. .FRIDAY...Partly cloudy with chance of showers, slight chance of thunderstorms and snow showers. Lows around 40. Highs in the mid 50s. West winds around 10 mph. .SATURDAY...Partly cloudy with chance of showers and slight chance of thunderstorms. Lows in the lower 40s. Highs in the lower 60s. .SUNDAY...Partly cloudy. Slight chance of showers in the morning, then chance of showers and slight chance of thunderstorms in the afternoon. Highs in the upper 50s. $$ WYZ286-211230- Absaroka Mountains/North Shoshone NF- Including the city of Pahaska 416 AM MDT Mon May 20 2024 ...WINTER WEATHER ADVISORY IN EFFECT FROM 6 PM THIS EVENING TO 6 PM MDT TUESDAY... .TODAY... Sky/weather.........Mostly cloudy. Scattered snow showers and rain showers in the morning, then numerous rain showers, snow showers and isolated thunderstorms in the afternoon. Snow accumulation up to 2 inches. Chance of precipitation 70 percent. Max temperature.....40-45. 24 hr trend......6 degrees cooler. Min humidity........50-56 percent. 24 hr trend......21 percent wetter. 20-foot winds.......Upslope/upvalley 5-9 mph until 0900, then southeast around 10 mph until 1500, then northeast. Gusts up to 15 mph. Ridge top winds.....Southeast 10 to 15 mph until 1500, then northeast. LAL.................1 until 1200, then 2. Chc of wetting rain.Zero percent until 1200, then 35 percent. Transport winds.....South 10 to 15 mph until 1200, then around 15 mph. Mixing Height.......600-800 ft agl until 0900. 4600-5800 ft agl after 1200. Smoke dispersal.....Poor until 1200, then fair to good. Haines Index........4. .TONIGHT... Sky/weather.........Cloudy. Numerous rain showers and isolated thunderstorms in the evening. Numerous snow showers through the night. Snow accumulation up to 6 inches. Chance of precipitation 70 percent. Min temperature.....26-31. 24 hr trend......1 degree warmer. Max humidity........81-87 percent. 24 hr trend......2 percent wetter. Humidity recovery...Excellent. 20-foot winds.......Northeast winds around 10 mph until 2100, then downslope/downvalley 4-7 mph. Gusts up to 15 mph. Ridge top winds.....North 10 to 15 mph. LAL.................2 until 2400, then 1. Chc of wetting rain.65 percent until 2400, then 55 percent. Transport winds.....North 10 to 15 mph. Mixing Height.......1000-3000 ft agl until 2400, then 800-1000 ft agl. Smoke dispersal.....Poor. Haines Index........3. .TUESDAY... Sky/weather.........Mostly cloudy. Numerous snow showers in the morning, then snow showers and isolated thunderstorms in the afternoon. Numerous rain showers early in the afternoon. Snow accumulation up to 5 inches. Chance of precipitation near 100 percent. Max temperature.....36-41. 24 hr trend......3 degrees cooler. Min humidity........59-65 percent. 24 hr trend......14 percent wetter. 20-foot winds.......North winds around 10 mph with higher gusts. Ridge top winds.....North around 15 mph. LAL.................1 until 1200, then 2. Chc of wetting rain.60 percent. Transport winds.....North 15 to 20 mph. Mixing Height.......800-2200 ft agl until 1200, then 3200-4000 ft agl. Smoke dispersal.....Poor to fair. Haines Index........3. .Forecast days 3 through 7...... .TUESDAY NIGHT...Partly cloudy. Isolated showers, thunderstorms and snow showers in the evening. Lows in the mid 20s. West winds around 10 mph. .WEDNESDAY...Mostly cloudy with snow showers likely with possible showers and thunderstorms. Lows in the upper 20s. Highs in the mid 40s. Southwest winds around 10 mph. .THURSDAY...Mostly cloudy with snow showers with possible showers and thunderstorms likely. Lows in the mid 20s. Highs in the upper 30s. West winds around 15 mph. .FRIDAY...Partly cloudy with chance of snow showers, showers and slight chance of thunderstorms. Lows in the lower 30s. Highs in the mid 40s. West winds around 15 mph. .SATURDAY THROUGH SUNDAY...Partly cloudy with chance of showers, snow showers and slight chance of thunderstorms. Lows in the lower 30s. Highs 47 to 52. $$ WYZ140-211230- Yellowstone National Park- Including the cities of Lake, Mammoth, and Old Faithful 416 AM MDT Mon May 20 2024 .TODAY... Sky/weather.........Partly cloudy then becoming mostly cloudy. Isolated rain showers and snow showers in the morning, then scattered rain showers, snow showers and isolated thunderstorms in the afternoon. Chance of precipitation 50 percent. Max temperature.....43-48. 24 hr trend......1 degree cooler. Min humidity........37-43 percent. 24 hr trend......4 percent wetter. 20-foot winds.......Upslope/upvalley 5-9 mph until 1200, then west around 10 mph. Ridge top winds.....East around 10 mph until 0900, then west. LAL.................1 until 1200, then 2. Chc of wetting rain.Zero percent until 1200, then 15 percent. Transport winds.....East around 10 mph until 0900, then southwest. Mixing Height.......600-800 ft agl until 0900. 5600-6400 ft agl after 1200. Smoke dispersal.....Poor until 1200, then good. Haines Index........3. .TONIGHT... Sky/weather.........Mostly cloudy. Scattered rain showers and isolated thunderstorms early in the evening. Scattered snow showers through the night. Chance of precipitation 50 percent. Min temperature.....25-30. 24 hr trend......2 degrees warmer. Max humidity........85-91 percent. 24 hr trend......1 percent wetter. Humidity recovery...Excellent. 20-foot winds.......Downslope/downvalley 4-7 mph. Ridge top winds.....North around 10 mph. LAL.................2 until 2400, then 1. Chc of wetting rain.25 percent until 2400, then 10 percent. Transport winds.....North around 15 mph. Mixing Height.......4000-4600 ft agl until 2100, then 800-1200 ft agl. Smoke dispersal.....Poor. Haines Index........3. .TUESDAY... Sky/weather.........Mostly cloudy. Numerous snow showers through the day. Isolated thunderstorms in the afternoon. Scattered rain showers early in the afternoon. Snow accumulation up to 1 inch. Chance of precipitation 70 percent. Max temperature.....41-46. 24 hr trend......Unchanged. Min humidity........48-54 percent. 24 hr trend......8 percent wetter. 20-foot winds.......Upslope/upvalley 5-9 mph until 0900, then north around 10 mph. Ridge top winds.....North 10 to 15 mph. LAL.................1 until 1200, then 2. Chc of wetting rain.10 percent until 1200, then 20 percent. Transport winds.....North 15 to 20 mph. Mixing Height.......600-800 ft agl until 0900. 4600-6000 ft agl after 1200. Smoke dispersal.....Fair to good. Haines Index........3. .Forecast days 3 through 7...... .TUESDAY NIGHT...Partly cloudy. Isolated showers, thunderstorms and snow showers in the evening. Lows in the upper 20s. Winds generally less than 10 mph. .WEDNESDAY...Mostly cloudy with snow showers with possible showers and thunderstorms likely. Lows in the upper 20s. Highs in the mid 40s. Southwest winds around 10 mph. .THURSDAY...Mostly cloudy with snow showers and slight chance of thunderstorms. Lows in the mid 20s. Highs in the upper 30s. Southwest winds around 10 mph. .FRIDAY...Mostly cloudy. Chance of showers, snow showers and slight chance of thunderstorms. Lows in the upper 20s. Highs in the mid 40s. Southwest winds around 10 mph. .SATURDAY THROUGH SUNDAY...Partly cloudy with chance of showers, snow showers and slight chance of thunderstorms. Lows in the upper 20s. Highs 46 to 51. $$ WYZ415-211230- North Zone Bridger Teton NF and Grand Teton NP- Including the cities of Jackson and Moran 416 AM MDT Mon May 20 2024 .TODAY... Sky/weather.........Partly cloudy then becoming mostly cloudy. Scattered rain showers, snow showers and isolated thunderstorms in the afternoon. Chance of precipitation 50 percent. Max temperature.....44-49. 24 hr trend......3 degrees cooler. Min humidity........32-38 percent. 24 hr trend......13 percent wetter. 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 0900, then southwest until 1500, then northwest. LAL.................1 until 1200, then 2. Chc of wetting rain.Zero percent. Transport winds.....South 10 to 15 mph until 1200, then west. Mixing Height.......600 ft agl until 0900. 6200-6800 ft agl after 1200. Smoke dispersal.....Poor until 1200, then good. Haines Index........4. .TONIGHT... Sky/weather.........Mostly cloudy. Isolated thunderstorms early in the evening. Scattered rain showers in the evening. Scattered snow showers through the night. Chance of precipitation 50 percent. Min temperature.....21-26. 24 hr trend......2 degrees warmer. Max humidity........81-87 percent. 24 hr trend......12 percent wetter. Humidity recovery...Excellent. 20-foot winds.......Downslope/downvalley 4-7 mph. Ridge top winds.....North around 10 mph. LAL.................2 until 2400, then 1. Chc of wetting rain.12 percent. Transport winds.....Northwest around 10 mph until 2400, then north. Mixing Height.......4000-4400 ft agl until 2100, then 600-1000 ft agl. Smoke dispersal.....Poor. Haines Index........3. .TUESDAY... Sky/weather.........Mostly cloudy. Numerous snow showers through the day. Scattered rain showers late in the morning, then numerous rain showers and isolated thunderstorms in the afternoon. Snow accumulation up to 2 inches. Chance of precipitation 70 percent. Max temperature.....38-43. 24 hr trend......6 degrees cooler. Min humidity........60-66 percent. 24 hr trend......28 percent wetter. 20-foot winds.......Upslope/upvalley 5-9 mph until 0900, then northwest around 10 mph. Gusts up to 15 mph. Ridge top winds.....Northwest 10 to 15 mph. LAL.................1 until 1200, then 2. Chc of wetting rain.35 percent until 1200, then 45 percent. Transport winds.....North 15 to 20 mph. Mixing Height.......600-2400 ft agl until 1200, then 4400-4800 ft agl. Smoke dispersal.....Poor until 1200, then good. Haines Index........3. .Forecast days 3 through 7...... .TUESDAY NIGHT...Partly cloudy. Isolated showers, thunderstorms and snow showers in the evening. Lows in the mid 20s. Winds generally less than 10 mph. .WEDNESDAY...Mostly cloudy with snow showers, showers and slight chance of thunderstorms. Lows in the upper 20s. Highs in the mid 40s. Southwest winds around 10 mph. .THURSDAY...Mostly cloudy with snow showers and slight chance of thunderstorms. Lows in the mid 20s. Highs in the upper 30s. Southwest winds around 10 mph. .FRIDAY...Partly cloudy with chance of snow showers, slight chance of showers and thunderstorms. Lows in the upper 20s. Highs in the mid 40s. Southwest winds around 10 mph. .SATURDAY THROUGH SUNDAY...Partly cloudy with chance of showers, snow showers and slight chance of thunderstorms. Lows in the upper 20s. Highs 46 to 51. $$ WYZ416-211230- West Wind River Mountains/East Zone Bridger Teton NF- 416 AM MDT Mon May 20 2024 .TODAY... Sky/weather.........Mostly cloudy. Scattered snow showers in the morning. Scattered rain showers through the day. Numerous snow showers and isolated thunderstorms in the afternoon. Snow accumulation up to 1 inch. Chance of precipitation 70 percent. Max temperature.....41-46. 24 hr trend......6 degrees cooler. Min humidity........43-49 percent. 24 hr trend......24 percent wetter. 20-foot winds.......Upslope/upvalley 5-9 mph until 1500, then west around 10 mph and gusty. Ridge top winds.....South around 10 mph until 1500, then west. LAL.................1 until 1200, then 2. Chc of wetting rain.5 percent until 1200, then 30 percent. Transport winds.....Southwest 10 to 15 mph. Mixing Height.......800-2600 ft agl until 1200, then 4600-5400 ft agl. Smoke dispersal.....Poor to fair. Haines Index........3. .TONIGHT... Sky/weather.........Cloudy. Numerous rain showers and isolated thunderstorms in the evening. Scattered snow showers through the night. Snow accumulation up to 1 inch. Chance of precipitation 70 percent. Min temperature.....22-27. 24 hr trend......2 degrees cooler. Max humidity........81-87 percent. 24 hr trend......15 percent wetter. Humidity recovery...Excellent. 20-foot winds.......Downslope/downvalley 4-7 mph. Gusts up to 10 mph. Ridge top winds.....Northwest around 10 mph until 2400, then north. LAL.................2 until 2400, then 1. Chc of wetting rain.17 percent. Transport winds.....West around 10 mph until 2100, then north. Mixing Height.......3000-3600 ft agl until 2100, then 600-1000 ft agl. Smoke dispersal.....Poor. Haines Index........3. .TUESDAY... Sky/weather.........Mostly cloudy. Scattered snow showers in the morning, then snow showers and isolated thunderstorms in the afternoon. Snow accumulation up to 4 inches. Chance of precipitation near 100 percent. Max temperature.....34-39. 24 hr trend......5 degrees cooler. Min humidity........59-65 percent. 24 hr trend......21 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.....Northwest 10 to 15 mph. LAL.................1 until 1200, then 2. Chc of wetting rain.40 percent until 1200, then 75 percent. Transport winds.....Northwest 10 to 15 mph until 1500, then around 20 mph. Mixing Height.......600-800 ft agl until 0900. 4000-5000 ft agl after 1200. Smoke dispersal.....Poor until 1200, then fair to good. Haines Index........3. .Forecast days 3 through 7...... .TUESDAY NIGHT...Partly cloudy. Isolated thunderstorms and snow showers in the evening. Lows in the lower 20s. Winds generally less than 10 mph. .WEDNESDAY...Mostly cloudy with chance of snow showers, showers and slight chance of thunderstorms. Lows in the upper 20s. Highs in the mid 40s. Southwest winds around 10 mph. .THURSDAY...Mostly cloudy with snow showers likely and slight chance of thunderstorms. Lows in the lower 20s. Highs in the upper 30s. West winds around 15 mph. .FRIDAY...Partly cloudy with slight chance of snow showers, showers and thunderstorms. Lows in the upper 20s. Highs in the mid 40s. West winds around 10 mph. .SATURDAY...Partly cloudy with chance of showers, snow showers and slight chance of thunderstorms. Lows in the upper 20s. Highs in the lower 50s. .SUNDAY...Partly cloudy. Slight chance of snow showers in the morning, then chance of showers, snow showers and slight chance of thunderstorms in the afternoon. Highs in the upper 40s. $$ WYZ288-211230- East Wind River Mountains/South Shoshone NF- Including the cities of Dubois and South Pass 416 AM MDT Mon May 20 2024 ...WINTER WEATHER ADVISORY IN EFFECT FROM 6 PM THIS EVENING TO 6 PM MDT TUESDAY... .TODAY... Sky/weather.........Mostly cloudy. Scattered snow showers and rain showers in the morning, then snow showers with possible showers and thunderstorms in the afternoon. Snow accumulation up to 2 inches. Chance of precipitation 90 percent. Max temperature.....39-44. 24 hr trend......13 degrees cooler. Min humidity........50-56 percent. 24 hr trend......43 percent wetter. 20-foot winds.......Upslope/upvalley 5-9 mph until 1200, then south around 10 mph. Gusts up to 15 mph. Ridge top winds.....South 10 to 15 mph. LAL.................1 until 1200, then 2. Chc of wetting rain.10 percent until 1200, then 50 percent. Transport winds.....Southwest 10 to 15 mph. Mixing Height.......800-2400 ft agl until 1200, then 3800-5000 ft agl. Smoke dispersal.....Poor to fair. Haines Index........4. .TONIGHT... Sky/weather.........Cloudy. Isolated thunderstorms in the evening. Snow showers and numerous rain showers through the night. Snow accumulation up to 3 inches. Chance of precipitation 90 percent. Min temperature.....23-28. 24 hr trend......1 degree cooler. Max humidity........87-93 percent. 24 hr trend......13 percent wetter. Humidity recovery...Excellent. 20-foot winds.......North winds around 10 mph until 2100, then downslope/downvalley 4-7 mph. Ridge top winds.....North around 10 mph. LAL.................2 until 2400, then 1. Chc of wetting rain.57 percent. Transport winds.....West around 10 mph until 2100, then north. Mixing Height.......1000-3000 ft agl until 0300, then 800-1000 ft agl. Smoke dispersal.....Poor. Haines Index........3. .TUESDAY... Sky/weather.........Mostly cloudy. Numerous snow showers in the morning, then snow showers and isolated thunderstorms in the afternoon. Numerous rain showers early in the afternoon. Snow accumulation up to 5 inches. Chance of precipitation near 100 percent. Max temperature.....33-38. 24 hr trend......4 degrees cooler. Min humidity........64-70 percent. 24 hr trend......15 percent wetter. 20-foot winds.......Upslope/upvalley 5-9 mph until 0900, then north around 10 mph. Gusts up to 15 mph. Ridge top winds.....North 10 to 15 mph. LAL.................1 until 1200, then 2. Chc of wetting rain.65 percent until 1200, then 80 percent. Transport winds.....Northwest around 15 mph. Mixing Height.......800-2600 ft agl until 1200, then 3200-4400 ft agl. Smoke dispersal.....Poor to fair. Haines Index........3. .Forecast days 3 through 7...... .TUESDAY NIGHT...Partly cloudy. Scattered snow showers, showers and isolated thunderstorms in the evening. Lows in the mid 20s. Winds generally less than 10 mph. .WEDNESDAY...Not as cool. Partly cloudy with chance of showers, snow showers and slight chance of thunderstorms. Lows in the lower 30s. Highs in the upper 40s. Southwest winds around 10 mph. .THURSDAY...Partly cloudy with snow showers, showers likely and slight chance of thunderstorms. Lows in the upper 20s. Highs in the lower 40s. West winds around 20 mph. .FRIDAY...Partly cloudy with chance of snow showers, slight chance of showers and thunderstorms. Lows in the lower 30s. Highs in the upper 40s. West winds around 15 mph. .SATURDAY THROUGH SUNDAY...Partly cloudy with chance of showers, snow showers and slight chance of thunderstorms. Lows in the lower 30s. Highs 50 to 55. $$ WYZ414-211230- Salt and Wyoming Ranges/West Zone Bridger Teton NF- Including the city of Afton 416 AM MDT Mon May 20 2024 .TODAY... Sky/weather.........Mostly cloudy. Isolated rain showers and snow showers in the morning. Scattered rain showers, snow showers and isolated thunderstorms in the afternoon. Chance of precipitation 40 percent. Max temperature.....42-47. 24 hr trend......6 degrees cooler. Min humidity........36-42 percent. 24 hr trend......21 percent wetter. 20-foot winds.......Upslope/upvalley 5-9 mph until 1200, then west around 10 mph. Gusts up to 15 mph. Ridge top winds.....Southwest around 10 mph until 1200, then west. LAL.................1 until 1200, then 2. Chc of wetting rain.Less than 5 percent. Transport winds.....Southwest 10 to 15 mph until 1500, then west. Mixing Height.......600 ft agl until 0900. 5400-6000 ft agl after 1200. Smoke dispersal.....Poor until 1200, then fair to good. Haines Index........3. .TONIGHT... Sky/weather.........Mostly cloudy. Scattered rain showers and isolated thunderstorms in the evening. Scattered snow showers through the night. Chance of precipitation 50 percent. Min temperature.....23-28. 24 hr trend......1 degree cooler. Max humidity........84-90 percent. 24 hr trend......19 percent wetter. Humidity recovery...Excellent. 20-foot winds.......Northwest 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.....Northwest 10 to 15 mph. LAL.................2 until 2400, then 1. Chc of wetting rain.Less than 5 percent. Transport winds.....Northwest around 15 mph. Mixing Height.......4200-4400 ft agl until 2100, then 800-1200 ft agl. Smoke dispersal.....Poor. Haines Index........3. .TUESDAY... Sky/weather.........Partly cloudy then becoming mostly cloudy. Scattered snow showers in the morning. Scattered rain showers late in the morning, then numerous snow showers, rain showers and isolated thunderstorms in the afternoon. Snow accumulation up to 1 inch. Chance of precipitation 70 percent. Max temperature.....37-42. 24 hr trend......5 degrees cooler. Min humidity........62-68 percent. 24 hr trend......25 percent wetter. 20-foot winds.......West winds 10 to 15 mph with higher gusts. Ridge top winds.....West 15 to 20 mph. LAL.................1 until 1200, then 2. Chc of wetting rain.25 percent. Transport winds.....Northwest 15 to 20 mph until 1500, then around 25 mph. Mixing Height.......800-1000 ft agl until 0900. 5200-5800 ft agl after 1200. Smoke dispersal.....Poor until 1200, then good to very good. Haines Index........3. .Forecast days 3 through 7...... .TUESDAY NIGHT...Partly cloudy. Isolated showers, thunderstorms and snow showers in the evening. Lows in the upper 20s. Winds generally less than 10 mph. .WEDNESDAY...Mostly cloudy with snow showers, showers likely and slight chance of thunderstorms. Lows in the upper 20s. Highs in the upper 40s. Southwest winds around 10 mph. .THURSDAY...Colder. Mostly cloudy. Snow showers, showers likely and slight chance of thunderstorms. Lows in the mid 20s. Highs in the upper 30s. West winds around 10 mph. .FRIDAY...Partly cloudy with slight chance of showers, thunderstorms and snow showers. Lows around 30. Highs in the upper 40s. Southwest winds around 10 mph. .SATURDAY THROUGH SUNDAY...Partly cloudy with chance of showers, snow showers and slight chance of thunderstorms. Lows around 30. Highs 49 to 54. $$ WYZ278-211230- Upper Green River Basin/Rock Springs BLM- Including the cities of Big Piney, Farson, and Pinedale 416 AM MDT Mon May 20 2024 .TODAY... Sky/weather.........Mostly cloudy. Scattered snow showers in the morning. Scattered rain showers through the day. Isolated thunderstorms and snow showers in the afternoon. Chance of precipitation 50 percent. Max temperature.....41-46. 24 hr trend......13 degrees cooler. Min humidity........43-49 percent. 24 hr trend......32 percent wetter. 20-foot winds.......Upslope/upvalley 5-9 mph until 1200, then southwest around 10 mph with higher gusts. Ridge top winds.....South 10 to 15 mph until 1500, then southwest. LAL.................1 until 1200, then 2. Chc of wetting rain.10 percent until 1200, then 25 percent. Transport winds.....Southwest 10 to 15 mph. Mixing Height.......1000-2800 ft agl until 1200, then 4600-5400 ft agl. Smoke dispersal.....Poor to fair. Haines Index........3. .TONIGHT... Sky/weather.........Mostly cloudy. Isolated thunderstorms in the evening. Scattered rain showers and snow showers through the night. Chance of precipitation 50 percent. Min temperature.....24-29. 24 hr trend......4 degrees cooler. Max humidity........80-86 percent. 24 hr trend......11 percent wetter. Humidity recovery...Excellent. 20-foot winds.......Northwest winds around 10 mph until 0300, then downslope/downvalley 4-7 mph. Gusts up to 15 mph. Ridge top winds.....Northwest around 15 mph. LAL.................2 until 2400, then 1. Chc of wetting rain.10 percent until 2400, then zero percent. Transport winds.....Northwest around 15 mph. Mixing Height.......3600-4200 ft agl until 2100, then 800-1400 ft agl. Smoke dispersal.....Poor. Haines Index........3. .TUESDAY... Sky/weather.........Partly cloudy then becoming mostly cloudy. Scattered snow showers in the morning. Scattered rain showers through the day. Numerous snow showers and isolated thunderstorms in the afternoon. Little or no snow accumulation. Chance of precipitation 70 percent. Max temperature.....42-47. 24 hr trend......1 degree warmer. Min humidity........48-54 percent. 24 hr trend......4 percent drier. 20-foot winds.......Northwest winds 10 to 15 mph. Gusts up to 20 mph until 1500, then 25 mph. Ridge top winds.....West 15 to 20 mph. LAL.................1 until 1200, then 2. Chc of wetting rain.5 percent until 1200, then 25 percent. Transport winds.....Northwest 15 to 20 mph until 1500, then around 25 mph. Mixing Height.......800-1000 ft agl until 0900. 6200-7800 ft agl after 1200. Smoke dispersal.....Poor to fair until 1200, then very good. Haines Index........3. .Forecast days 3 through 7...... .TUESDAY NIGHT...Partly cloudy. Isolated showers, thunderstorms and snow showers in the evening. Lows in the upper 20s. Winds generally less than 10 mph. .WEDNESDAY...Warmer. Mostly cloudy with chance of showers, snow showers and slight chance of thunderstorms. Lows in the mid 30s. Highs in the upper 50s. Southwest winds around 10 mph. .THURSDAY...Partly cloudy with chance of showers, snow showers and slight chance of thunderstorms. Lows in the upper 20s. Highs in the upper 40s. West winds around 15 mph. .FRIDAY...Partly cloudy. Lows in the lower 30s. Highs in the upper 50s. West winds around 10 mph. .SATURDAY...Partly cloudy with slight chance of showers and thunderstorms. Lows in the mid 30s. Highs in the lower 60s. .SUNDAY...Partly cloudy. Slight chance of showers and snow showers in the morning, then slight chance of showers and thunderstorms in the afternoon. Highs around 60. $$ WYZ277-211230- Lincoln and Uinta Counties/Lower Elevations- Including the cities of Evanston, Fort Bridger, and Kemmerer 416 AM MDT Mon May 20 2024 .TODAY... Sky/weather.........Mostly cloudy. Scattered snow showers until late afternoon. Scattered rain showers through the day. Isolated thunderstorms early in the afternoon. Chance of precipitation 50 percent. Max temperature.....42-47. 24 hr trend......13 degrees cooler. Min humidity........47-53 percent. 24 hr trend......33 percent wetter. 20-foot winds.......Upslope/upvalley 5-9 mph until 1200, then southwest around 10 mph with higher gusts. Ridge top winds.....South 10 to 15 mph until 1500, then west. LAL.................1 until 1200, then 2. Chc of wetting rain.10 percent until 1200, then 25 percent. Transport winds.....South around 10 mph until 1200, then southwest. Mixing Height.......1200-2600 ft agl until 1200, then 4600-5200 ft agl. Smoke dispersal.....Poor to fair. Haines Index........3. .TONIGHT... Sky/weather.........Mostly cloudy then becoming partly cloudy. Scattered rain showers and isolated thunderstorms in the evening. Isolated snow showers through the night. Chance of precipitation 50 percent. Min temperature.....25-30. 24 hr trend......4 degrees cooler. Max humidity........80-86 percent. 24 hr trend......7 percent wetter. Humidity recovery...Excellent. 20-foot winds.......Northwest winds around 10 mph and gusty. Ridge top winds.....Northwest around 15 mph. LAL.................2 until 2400, then 1. Chc of wetting rain.Zero percent. Transport winds.....Northwest around 15 mph. Mixing Height.......4800-5200 ft agl until 2100, then 600-1200 ft agl. Smoke dispersal.....Good until 2100, then poor. Haines Index........3. .TUESDAY... Sky/weather.........Partly cloudy then becoming mostly cloudy. Scattered snow showers and rain showers in the morning, then numerous rain showers, snow showers and isolated thunderstorms in the afternoon. Little or no snow accumulation. Chance of precipitation 70 percent. Max temperature.....42-47. 24 hr trend......4 degrees warmer. Min humidity........45-51 percent. 24 hr trend......8 percent drier. 20-foot winds.......West winds 10 to 15 mph with gusts to around 25 mph until 1200, then around 20 mph with gusts to around 30 mph. Ridge top winds.....West 15 to 20 mph until 1200, then around 25 mph. LAL.................1 until 1200, then 2. Chc of wetting rain.7 percent. Transport winds.....West 15 to 20 mph until 1200, then northwest 25 to 30 mph. Mixing Height.......600-800 ft agl until 0900. 6600-7600 ft agl after 1200. Smoke dispersal.....Poor until 0900. Excellent after 1200. Haines Index........3. .Forecast days 3 through 7...... .TUESDAY NIGHT...Mostly clear. Lows in the upper 20s. West winds around 10 mph. .WEDNESDAY...Warmer. Mostly cloudy. Chance of snow showers, slight chance of showers and thunderstorms. Lows in the mid 30s. Highs in the upper 50s. Southwest winds around 10 mph. .THURSDAY...Partly cloudy with chance of showers, snow showers and slight chance of thunderstorms. Lows in the upper 20s. Highs in the upper 40s. West winds around 15 mph. .FRIDAY...Partly cloudy. Lows in the mid 30s. Highs in the upper 50s. West winds around 10 mph. .SATURDAY...Partly cloudy with slight chance of showers and thunderstorms. Lows in the mid 30s. Highs in the lower 60s. .SUNDAY...Partly cloudy. Slight chance of showers in the morning, then chance of showers and slight chance of thunderstorms in the afternoon. Highs in the upper 50s. $$ WYZ279-211230- Sweetwater County/Rock Springs BLM/Flaming Gorge NRA- Including the cities of Green River, Rock Springs, and Wamsutter 416 AM MDT Mon May 20 2024 .TODAY... Sky/weather.........Mostly cloudy. Scattered snow showers in the morning. Numerous rain showers through the day. Isolated thunderstorms in the afternoon. No snow accumulation. Chance of precipitation 70 percent. Max temperature.....45-50. 24 hr trend......20 degrees cooler. Min humidity........48-54 percent. 24 hr trend......37 percent wetter. 20-foot winds.......North winds around 10 mph until 1500, then northwest. Gusts up to 15 mph. Ridge top winds.....North around 15 mph until 1500, then northwest. LAL.................1 until 1200, then 2. Chc of wetting rain.45 percent until 1200, then 65 percent. Transport winds.....Northeast around 15 mph until 1200, then east until 1500, then northwest. Mixing Height.......1400-3400 ft agl. Smoke dispersal.....Poor to fair. Haines Index........3. .TONIGHT... Sky/weather.........Mostly cloudy. Numerous rain showers and isolated thunderstorms in the evening, then scattered rain showers and snow showers after midnight. No snow accumulation. Chance of precipitation 70 percent. Min temperature.....29-34. 24 hr trend......5 degrees cooler. Max humidity........85-91 percent. 24 hr trend......11 percent wetter. Humidity recovery...Excellent. 20-foot winds.......Northwest winds around 10 mph with gusts to around 15 mph. Ridge top winds.....Northwest around 15 mph. LAL.................2 until 2400, then 1. Chc of wetting rain.7 percent. Transport winds.....Northwest around 15 mph. Mixing Height.......1200-2600 ft agl. Smoke dispersal.....Poor. Haines Index........3. .TUESDAY... Sky/weather.........Mostly cloudy then becoming partly cloudy then becoming mostly cloudy. Scattered snow showers in the morning. Scattered rain showers through the day. Isolated thunderstorms in the afternoon. Chance of precipitation 50 percent. Max temperature.....43-48. 24 hr trend......3 degrees warmer. Min humidity........46-52 percent. 24 hr trend......9 percent drier. 20-foot winds.......West winds 10 to 15 mph with gusts to around 25 mph until 1200, then around 20 mph with gusts to around 30 mph. Ridge top winds.....West 15 to 20 mph until 1500, then around 25 mph. LAL.................1 until 1200, then 2. Chc of wetting rain.Zero percent until 1200, then 10 percent. Transport winds.....West 15 to 20 mph until 1200, then 25 to 30 mph. Mixing Height.......1000-1400 ft agl until 0900. 6400-8000 ft agl after 1200. Smoke dispersal.....Poor to fair until 1200, then excellent. Haines Index........3. .Forecast days 3 through 7...... .TUESDAY NIGHT...Partly cloudy. Isolated showers and thunderstorms in the evening. Lows in the lower 30s. West winds around 10 mph. .WEDNESDAY...Warmer. Partly cloudy. Lows in the upper 30s. Highs around 60. Southwest winds around 10 mph. .THURSDAY...Partly cloudy with chance of showers, slight chance of thunderstorms and snow showers. Lows in the lower 30s. Highs in the mid 50s. West winds around 20 mph. .FRIDAY...Partly cloudy. Lows in the upper 30s. Highs around 60. West winds around 10 mph. .SATURDAY THROUGH SUNDAY...Partly cloudy with slight chance of showers and thunderstorms. Lows in the upper 30s. Highs 62 to 67. $$ WYZ289-211230- Granite/Green/Ferris/Rattlesnake Mountains- Including the city of Jeffrey City 416 AM MDT Mon May 20 2024 .TODAY... Sky/weather.........Cloudy. Scattered rain showers and snow showers in the morning, then numerous rain showers and isolated thunderstorms in the afternoon. No snow accumulation. Chance of precipitation 70 percent. Max temperature.....42-47. 24 hr trend......20 degrees cooler. Min humidity........62-68 percent. 24 hr trend......49 percent wetter. 20-foot winds.......East winds around 10 mph until 1200, then southeast. Gusts up to 15 mph. Ridge top winds.....East 10 to 15 mph until 1200, then southeast. LAL.................1 until 1200, then 2. Chc of wetting rain.40 percent until 1200, then 60 percent. Transport winds.....East around 10 mph until 1200, then around 15 mph. Mixing Height.......1400-3400 ft agl. Smoke dispersal.....Poor to fair. Haines Index........2. .TONIGHT... Sky/weather.........Cloudy. Isolated thunderstorms in the evening. Numerous rain showers through the night. Numerous snow showers after midnight. Little or no snow accumulation. Chance of precipitation 70 percent. Min temperature.....30-35. 24 hr trend......3 degrees cooler. Max humidity........90-96 percent. 24 hr trend......11 percent wetter. Humidity recovery...Excellent. 20-foot winds.......North winds around 10 mph until 0300, then northwest. Gusts up to 15 mph. Ridge top winds.....North around 15 mph until 0300, then northwest. LAL.................2 until 2400, then 1. Chc of wetting rain.40 percent until 2400, then 30 percent. Transport winds.....North around 15 mph. Mixing Height.......1200-2600 ft agl. Smoke dispersal.....Poor. Haines Index........3. .TUESDAY... Sky/weather.........Mostly cloudy. Numerous rain showers and snow showers through the day. Isolated thunderstorms in the afternoon. Little or no snow accumulation. Chance of precipitation 70 percent. Max temperature.....40-45. 24 hr trend......1 degree cooler. Min humidity........66-72 percent. 24 hr trend......Unchanged. 20-foot winds.......Northwest winds 10 to 15 mph with higher gusts. Ridge top winds.....Northwest 15 to 20 mph. LAL.................1 until 1200, then 2. Chc of wetting rain.35 percent until 1200, then 60 percent. Transport winds.....Northwest 15 to 20 mph. Mixing Height.......1200-2600 ft agl until 1200, then 4200-5400 ft agl. Smoke dispersal.....Poor until 1200, then good. Haines Index........3. .Forecast days 3 through 7...... .TUESDAY NIGHT...Partly cloudy. Scattered showers, snow showers and isolated thunderstorms in the evening. Lows in the lower 30s. West winds around 10 mph. .WEDNESDAY...Warmer. Partly cloudy with slight chance of showers and thunderstorms. Lows in the upper 30s. Highs in the upper 50s. Southwest winds around 15 mph. .THURSDAY...Partly cloudy with chance of showers, snow showers and slight chance of thunderstorms. Lows in the lower 30s. Highs in the mid 50s. West winds around 20 mph. .FRIDAY...Partly cloudy. Slight chance of showers, thunderstorms and snow showers. Lows in the upper 30s. Highs in the upper 50s. West winds around 15 mph. .SATURDAY...Partly cloudy with slight chance of showers and thunderstorms. Lows around 40. Highs in the mid 60s. .SUNDAY...Partly cloudy. Chance of showers and slight chance of thunderstorms in the afternoon. Highs in the lower 60s. $$ WYZ300-211230- Casper Mountain- 416 AM MDT Mon May 20 2024 .TODAY... Sky/weather.........Cloudy. Numerous rain showers and scattered snow showers in the morning, then rain showers and isolated thunderstorms in the afternoon. Little or no snow accumulation. Chance of precipitation 90 percent. Max temperature.....39-44. 24 hr trend......22 degrees cooler. Min humidity........62-68 percent. 24 hr trend......51 percent wetter. 20-foot winds.......Upslope/upvalley 5-9 mph until 1200, then east around 10 mph. Gusts up to 15 mph. Ridge top winds.....East 10 to 15 mph. LAL.................1 until 1200, then 2. Chc of wetting rain.45 percent until 1200, then 85 percent. Transport winds.....East 10 to 15 mph. Mixing Height.......800-2600 ft agl. Smoke dispersal.....Poor. Haines Index........2. .TONIGHT... Sky/weather.........Cloudy. Rain showers, snow showers and isolated thunderstorms in the evening, then numerous rain showers and snow showers after midnight. Little or no snow accumulation. Chance of precipitation 90 percent. Min temperature.....30-35. 24 hr trend......1 degree cooler. Max humidity........89-95 percent. 24 hr trend......7 percent wetter. Humidity recovery...Excellent. 20-foot winds.......East winds around 10 mph until 2100, then downslope/downvalley 4-7 mph. Ridge top winds.....Southeast 10 to 15 mph until 0300, then northwest. LAL.................2 until 2400, then 1. Chc of wetting rain.80 percent until 2400, then 55 percent. Transport winds.....East 10 to 15 mph until 2400. Southwest after 0300. Mixing Height.......1000-2000 ft agl. Smoke dispersal.....Poor. Haines Index........2. .TUESDAY... Sky/weather.........Cloudy. Numerous rain showers and snow showers through the day. Isolated thunderstorms in the afternoon. Snow accumulation up to 1 inch. Chance of precipitation 70 percent. Max temperature.....37-42. 24 hr trend......1 degree cooler. Min humidity........75-81 percent. 24 hr trend......8 percent wetter. 20-foot winds.......Upslope/upvalley 5-9 mph until 0900, then north around 10 mph. Gusts up to 15 mph. Ridge top winds.....North around 15 mph. LAL.................1 until 1200, then 2. Chc of wetting rain.57 percent. Transport winds.....Northwest 15 to 20 mph. Mixing Height.......1200-2600 ft agl until 1500, then 3600-3800 ft agl. Smoke dispersal.....Poor to fair. Haines Index........3. .Forecast days 3 through 7...... .TUESDAY NIGHT...Partly cloudy. Scattered showers, snow showers and isolated thunderstorms in the evening, then isolated showers and snow showers after midnight. Lows in the lower 30s. Winds generally less than 10 mph. .WEDNESDAY...Warmer. Partly cloudy with slight chance of showers and thunderstorms. Lows in the upper 30s. Highs in the mid 50s. Southwest winds around 10 mph. .THURSDAY...Partly cloudy with chance of showers, snow showers and slight chance of thunderstorms. Lows in the lower 30s. Highs in the mid 50s. West winds around 15 mph. .FRIDAY...Partly cloudy with chance of showers, slight chance of thunderstorms and snow showers. Lows in the upper 30s. Highs in the mid 50s. Southwest winds around 15 mph. .SATURDAY...Partly cloudy with slight chance of showers and thunderstorms. Lows in the lower 40s. Highs in the lower 60s. .SUNDAY...Partly cloudy. Chance of showers and slight chance of thunderstorms in the afternoon. Highs in the upper 50s. $$