Mon May 20 16:15:40 EDT 2024 Southwest Carbon County- 215 PM MDT Mon May 20 2024 .TONIGHT... Sky/weather.........Mostly cloudy. Showers likely and chance of thunderstorms until 2400, then chance of showers, slight chance of thunderstorms and snow showers. No snow accumulation. Min temperature.....33-38. 24 hr trend......3 degrees cooler. Max humidity........91-97 percent. 24 hr trend......18 percent wetter. Humidity recovery...Excellent. 20-foot winds.......North around 10 mph and gusty shifting to the west after midnight. LAL.................3 until 2400, then 2. Chc of wetting rain.35 percent. Transport winds.....Northwest around 10 mph. Mixing height.......2000-3600 ft AGL. Smoke dispersal.....Poor (20100-31400 knot-ft). Haines Index........2 or very low potential for large plume dominated fire growth. .TUESDAY... Sky/weather.........Mostly cloudy. Chance of snow showers until 1200. Chance of showers. Snow showers likely and slight chance of thunderstorms after 1200. No snow accumulation. Max temperature.....47-52. 24 hr trend......9 degrees cooler. Min humidity........39-45 percent. 24 hr trend......3 percent drier. 20-foot winds.......West 10 to 15 mph. Gusts up to 20 mph increasing to 30 mph in the afternoon. LAL.................1 until 1200, then 3. Chc of wetting rain.25 percent. Transport winds.....West around 15 mph. Mixing height.......4400-6400 ft AGL increasing to 10100-12100 ft AGL in the afternoon. Smoke dispersal.....Fair (57700 knot-ft) increasing to excellent (166000 knot-ft) in the afternoon. Haines Index........4 or low potential for large plume dominated fire growth. .TUESDAY NIGHT... Sky/weather.........Partly cloudy. Chance of snow showers, slight chance of showers and thunderstorms until 2400. Min temperature.....28-33. 24 hr trend......5 degrees cooler. Max humidity........88-94 percent. 24 hr trend......4 percent drier. Humidity recovery...Excellent. 20-foot winds.......West around 10 mph and gusty shifting to the south after midnight. LAL.................3 until 2100, then 1. Chc of wetting rain.5 percent. Transport winds.....West 10 to 15 mph. Mixing height.......6100-8100 ft AGL decreasing to 400-1200 ft AGL after midnight. Smoke dispersal.....Good (91700 knot-ft) decreasing to poor (6400 knot-ft) after midnight. Haines Index........3 or very low potential for large plume dominated fire growth. .WEDNESDAY... Sky/weather.........Mostly sunny until 0900, then partly cloudy until 1200, then mostly cloudy. Max temperature.....58-63. 24 hr trend......10 degrees warmer. Min humidity........17-23 percent. 24 hr trend......22 percent drier. 20-foot winds.......Southwest 10 to 15 mph with higher gusts. LAL.................1. Chc of wetting rain.Zero percent. Transport winds.....Southwest around 15 mph increasing to around 25 mph in the afternoon. Mixing height.......2200-4200 ft AGL increasing to 6900-8900 ft AGL in the afternoon. Smoke dispersal.....Fair (52400 knot-ft) increasing to excellent (183700 knot-ft) in the afternoon. Haines Index........3 or very low potential for large plume dominated fire growth. .FORECAST DAYS 3 THROUGH 7... .THURSDAY...Partly cloudy with slight chance of showers and thunderstorms. Lows in the upper 30s. Highs in the upper 50s. Southwest winds around 15 mph. .FRIDAY...Partly cloudy with slight chance of showers and snow showers. Lows in the lower 30s. Highs in the upper 50s. West winds around 10 mph. .SATURDAY...Partly cloudy with slight chance of showers. Areas of frost after midnight. Lows in the upper 30s. Highs in the mid 60s. Southwest winds around 10 mph. .SUNDAY...Partly cloudy with chance of showers. Lows in the upper 30s. Highs in the lower 60s. .MEMORIAL DAY...Mostly clear. Slight chance of showers. Lows in the mid 30s. Highs in the upper 60s.