Spot Forecast
Issued by NWS Grand Junction, CO
Issued by NWS Grand Junction, CO
671 FNUS75 KGJT 211828 FWSGJT Spot Forecast for Redvale Spot...San Miguel Sherriff National Weather Service Grand Junction CO 1228 PM MDT Sat Sep 21 2024 Forecast is based on forecast start time of 1200 MDT on September 21. If conditions become unrepresentative, contact the National Weather Service. .DISCUSSION...An approaching storm system will bring increasing chances of showers and thunderstorms through the afternoon. Dry surface levels will keep the main threats gusty winds and lightning through the early afternoon hours. As more moisture moves in, look for increasing chances of wetting rains. This system will move quickly to the northeast, with drying conditions through the overnight. Tomorrow will be generally dry and cooler, although a slight chance of afternoon showers and storms remains. .REST OF TODAY... Sky/weather.........Mostly cloudy (70-80 percent). Rain showers and chance of thunderstorms through the afternoon. CWR.................70 percent. Max temperature.....67-72. Min humidity........24-29 percent. Wind (20 ft)........Southwest winds 8-12 mph, becoming southeast by 1800. Gusts up to 20 mph in the afternoon. Gusty and erratic winds expected near thunderstorms. Smoke dispersal.....Very good decreasing to good by 1300, decreasing to fair by 1400, and decreasing to poor (16000-18000 knot-ft) by 1800. Haines Index........4 or low. LAL.................4. Mixing height.......8100 ft AGL decreasing to 4500 ft AGL after 1400. Transport winds.....Southwest 20 mph. .TONIGHT... Sky/weather.........Mostly cloudy (75-85 percent). Rain showers and chance of thunderstorms before 2200, then chance of rain showers and slight chance of thunderstorms. CWR.................10 percent. Min temperature.....40-45. Max humidity........95-100 percent. Wind (20 ft)........Southeast winds 8-12 mph, decreasing to 4-8 mph after 2400. Gusts up to 20 mph possible before 2200. Gusty and erratic winds expected near thunderstorms. Smoke dispersal.....Poor (4000-17000 knot-ft). Haines Index........3 or very low. LAL.................4 until 2400, then 3 until 0500, then 2 until 0600, then 1. Mixing height.......1700 ft AGL decreasing to 850 ft AGL by 2200. Transport winds.....Southeast 10 mph. .SUNDAY... Sky/weather.........Mostly sunny (45-55 percent). Slight chance of rain showers and thunderstorms after 1200. CWR.................0 percent. Max temperature.....63-68. Min humidity........38-43 percent. Wind (20 ft)........Southeast winds 3-5 mph becoming northwest winds 4-8 mph by 1200. Switching to the south by 1800. Gusty and erratic winds expected near thunderstorms in the afternoon. Smoke dispersal.....Poor (4000-34000 knot-ft) increasing to fair by 1500, then decreasing again to poor (28000-34000 knot-ft) after 1600. Haines Index........3 or very low. LAL.................1 until 1200, then 2. Mixing height.......820 ft AGL increasing to 6200 ft AGL by 1500. Transport winds.....East 5 mph shifting to the north 10 mph in the afternoon. $$ Forecaster...Brianna Bealo/Braeden Winters Requested by...Nick Adams Type of request...WILDFIRE .TAG 2422833.0/GJT .DELDT 09/21/24 .FormatterVersion 2.0.0 .EMAIL ccs@sanmiguelsherriff.org