FNUS75 KGJT 191015 FWSGJT Spot Forecast for D1 Ponderosa RX Unit 12...USFS National Weather Service Grand Junction CO 415 AM MDT Thu Mar 19 2026 Forecast is based on ignition time of 0800 MDT on March 19. If conditions become unrepresentative, contact the National Weather Service. .DISCUSSION...Hot...near record temperatures start today and continue into Saturday under this strong dome of high pressure. This will not only lead to low afternoon humidity but some afternoon gusts under efficient mixing conditions. Gusts up to 30 mph are possible late this afternoon and about half that tomorrow afternoon. Winds will be increasing Saturday with the approach of a cool front and slight damping of the ridge aloft. .REST OF TODAY... Sky/weather.........Sunny (10-20 percent). CWR.................0 percent. Max temperature.....74-76. Min humidity........9-14 percent by peak heating. Wind (20 ft)........Southwest winds 5 to 8 mph shifting to the Northwest 10 to 15 mph by 1300. Gusts 20 to 30 mph developing by 1400. Mixing height.......Increasing to 10100 ft AGL during peak heating hours. Clearing Index......1050 after 1200. .TONIGHT... Sky/weather.........Mostly clear (10-20 percent). CWR.................0 percent. Min temperature.....42-47. Max humidity........26-31 percent. Wind (20 ft)........West winds 15 mph becoming southwest 5 mph overnight. Mixing height.......4500 ft AGL decreasing to 600 ft AGL overnight. Clearing Index......800 decreasing to 50 overnight. .FRIDAY... Sky/weather.........Sunny (5-15 percent). CWR.................0 percent. Max temperature.....75-77 Min humidity........9-14 percent by peak heating. Wind (20 ft)........Southwest winds 5 to 10 mph. Gusts near 15 mph during peak heating hours. Mixing height.......Increasing to 11000 ft AGL by peak heating Clearing Index......1050 during peak heating hours. $$ Forecaster...Dennis Phillips Requested by...Mike Bertagnolli Type of request...PRESCRIBED .TAG 2606458.0/GJT .DELDT 03/19/26 .FormatterVersion 2.0.0 .EMAIL michael.bertagnolli@usda.gov