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Spot Forecast
Issued by NWS Grand Junction, CO
Issued by NWS Grand Junction, CO
560 FNUS75 KGJT 111221 FWSGJT Spot Forecast for SPEIRS...USFS National Weather Service Grand Junction CO 621 AM MDT Sun Aug 11 2024 Forecast is based on forecast start time of 0700 MDT on August 11. If conditions become unrepresentative, contact the National Weather Service. .DISCUSSION...Another round of showers and storms will occur this afternoon with lightning and gusty outflow winds the primary concerns. Moisture increases Monday with a disturbance moving through, leading to better chances of wetting rain, potentially heavy at times with more widespread coverage of storms over the fire. .REST OF TODAY... Sky/weather.........Mostly sunny (40-50 percent). Isolated showers through the day. Isolated thunderstorms in the afternoon. CWR.................10 percent. Max temperature.....80-85. Min humidity........22-27 percent. Wind (20 ft)........West winds 8 to 12 mph. Gusts up to 25 mph in the afternoon. Gusty and erratic winds expected near thunderstorms in the afternoon. Haines Index........4 or low. LAL.................1 until 1200, then 2 until 1300, then 3. Mixing height.......7800 ft AGL increasing to 12200 ft AGL in the afternoon by peak heating. Transport winds.....West 19 mph. Clearing Index......1050. .TONIGHT... Sky/weather.........Mostly cloudy (60-70 percent). Scattered showers and thunderstorms in the evening, then isolated showers and thunderstorms overnight. CWR.................10 percent. Min temperature.....52-57. Max humidity........71-76 percent. Wind (20 ft)........Southwest winds 12 to 18 mph shifting to the south overnight and becoming downslope/downvalley 8 to 12 mph. Gusty and erratic winds expected near thunderstorms. Haines Index........4 or low. LAL.................4 until 2000, then 3 until 0200, then 2. Mixing height.......8900 ft AGL decreasing to 1300 ft AGL overnight. Transport winds.....South 17 mph. Clearing Index......1050 decreasing to 160 overnight. .MONDAY... Sky/weather.........Mostly sunny (45-55 percent) then becoming cloudy (90-100 percent). Rain showers and numerous thunderstorms in the afternoon. CWR.................90 percent. Max temperature.....76-81. Min humidity........41-46 percent. Wind (20 ft)........Southwest winds 10 to 15 mph with gusts to 30 mph in the afternoon. Gusty and erratic winds expected near thunderstorms. Haines Index........3 or very low. LAL.................1 until 1200, then 5. Mixing height.......Increasing to 5500 ft AGL in the afternoon by peak heating. Transport winds.....Southwest 13 mph. Clearing Index......460 increasing to 1050 in the afternoon. $$ Forecaster...Matt Aleksa Requested by...Tom Wilson Type of request...WILDFIRE .TAG 2419856.4/GJT .DELDT 08/11/24 .FormatterVersion 2.0.0 .EMAIL utubc@firenet.gov