Spot Forecast
Issued by NWS Grand Junction, CO
Issued by NWS Grand Junction, CO
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036 FNUS75 KGJT 271828 FWSGJT Spot Forecast for Beaver Basin...MIFC National Weather Service Grand Junction CO 1228 PM MDT Thu Jun 27 2024 Forecast is based on ignition time of 1300 MDT on June 27. If conditions become unrepresentative, contact the National Weather Service. ...Flood Watch in effect through midnight... ...Potential for severe thunderstorms producing large hail and strong winds through this evening... .DISCUSSION...A deep surge of subtropical moisture is expected to generate widespread showers and thunderstorms this afternoon through this evening. Excessive rain and severe storms are possible with potential outflow winds to 60 mph or higher and hail to 1 inch in diameter. Relative humidity will be unseasonably high with a good chance for wetting rain over some parts of the project area. Drying begins Friday, though isolated storms are possible over surrounding higher terrain. .REST OF TODAY... Sky/weather.........Becoming mostly cloudy (70-80 percent). Showers and thunderstorms likely. CWR.................50 percent. Max temperature.....76-81. Min humidity........37-42 percent. Wind (20 ft)........Southwest winds 5 to 10 mph. Gusty and erratic winds expected near thunderstorms. Smoke dispersal.....Very good. Haines Index........4 or low. LAL.................4 until 1500, then 5. Mixing height.......7100 ft AGL at peak heating. Transport winds.....Southwest 17 mph. Clearing Index......1000+. .TONIGHT... Sky/weather.........Mostly cloudy (70-80 percent) then becoming partly cloudy (35-45 percent). Showers and thunderstorms likely in the evening, then slight chance of showers and thunderstorms overnight. CWR.................40 percent. Min temperature.....52-57. Max humidity........80-85 percent. Wind (20 ft)........Southwest winds 5 to 10 mph becoming downslope 4 to 8 mph after 2200. Gusty and erratic winds expected near thunderstorms. Smoke dispersal.....Poor (4000-17000 knot-ft). Haines Index........3 or very low. LAL.................4 until 2300, then 2 until 0500, then 1. Mixing height.......Lowering to 1400 ft AGL. Transport winds.....South 12 mph. Clearing Index......Lowering to 170. .FRIDAY... Sky/weather.........Sunny (15-25 percent). A slight chance for thunderstorms in the afternoon. CWR.................0 percent. Max temperature.....78-83. Min humidity........25-30 percent. Wind (20 ft)........South winds 5 to 10 mph shifting to the southwest in the afternoon. Gusty and erratic winds expected near thunderstorms in the afternoon. Smoke dispersal.....Fair, increasing to excellent in the afternoon. Haines Index........5 or moderate. LAL.................1. Mixing height.......Increasing to 9100 ft AGL in the afternoon. Transport winds.....Southwest 19 mph. Clearing Index......1000+ in the afternoon. $$ Forecaster...Norv Larson Requested by...Wendy Type of request...PRESCRIBED .TAG 2416822.0/GJT .DELDT 06/27/24 .FormatterVersion 2.0.0 .EMAIL utmfc@firenet.gov