COZ201-030115- COZ201-030115- Routt Forecast Area- 315 AM MDT Sat Aug 2 2025 Fire Weather Planning Forecast for Wrn Colorado and Ern Utah National Weather Service Grand Junction CO 315 AM MDT Sat Aug 2 2025 ...RED FLAG WARNING IN EFFECT FROM 1 PM UNTIL 7 PM MDT THIS EVENING FOR GUSTY WINDS, LOW HUMIDITY AND DRY FUELS FOR COLORADO FIRE WEATHER ZONES 200, 202, 203, 207 AND 290, AS WELL AS UTAH FIRE WEATHER ZONES 487, 490 AND 491... .DISCUSSION... Critical fire weather conditions will occur over the next several days as very dry air moves in as do some windy conditions. Gusty winds and low humdities are expected today as wind gusts reach 30 mph and humdities drop to the single digits/low teens. Red Flag Warnings remain in effect for much of eastern Utah and western Colorado. Many days next week will also see low humdities and gusty winds so critical fire weather conditions will be possible. ...GUSTY ERRATIC WINDS CAN BE EXPECTED NEAR ANY SHOWERS OR THUNDERSTORMS... ...THE SMOKE DATA IS CALCULATED FROM AN AVERAGE AT 6000 FEET MSL... .TODAY... Sky/weather.........Partly cloudy (40-50%). Areas of smoke until 1200. Isolated showers and thunderstorms until 1200, then scattered showers and thunderstorms. Chc of lightning....40 percent. Max temperature.....69-79 F. Min humidity........17-27%. 20-foot winds.......Downslope/downvalley winds 4 to 8 mph becoming southwest 10 to 15 mph in the afternoon. Localized gusts up to 30 mph. CWR.................20 percent. 15K Ft MSL Winds....Southwest 15 to 20 mph increasing to 20 to 30 mph in the afternoon. Mixing Height.......1500 ft AGL until 0900. 14000 ft AGL after 1100. Transport Winds.....Southwest 5 to 10 mph until 1200, then 20 to 25 mph. Smoke dispersal.....Poor until 0900. Excellent after 1200. .TONIGHT... Sky/weather.........Partly cloudy (40-50%). Isolated showers and thunderstorms until 2400. Chc of lightning....20 percent. Min temperature.....44-54 F. Max humidity........50-60%. 20-foot winds.......Upslope/upvalley 4 to 8 mph becoming downslope/downvalley 3 to 6 mph by sunset. CWR.................20 percent. 15K Ft MSL Winds....West 20 to 30 mph. Mixing Height.......11000 ft AGL until 1900. 1500 ft AGL after 2000. Transport Winds.....Southwest 5 to 10 mph until 2400, then south. Smoke dispersal.....Good until 2100, then poor. .SUNDAY... Sky/weather.........Mostly sunny (20-30%). Chc of lightning....0 percent. Max temperature.....70-80 F. Min humidity........12-17%. 20-foot winds.......Upslope/upvalley winds 4 to 8 mph. Localized gusts up to 25 mph in the afternoon. CWR.................0 percent. 15K Ft MSL Winds....Northwest 20 to 25 mph becoming west 15 to 20 mph in the afternoon. Mixing Height.......2000 ft AGL until 0900, then 11500 ft AGL. Transport Winds.....West 5 to 10 mph. Smoke dispersal.....Poor until 0900. Excellent after 1200. .FORECAST FOR DAY 3 THROUGH 7... .MONDAY...Mostly clear. Lows 46-56. Highs 77-87. Southwest winds 10 to 20 mph with gusts to 30 mph. .TUESDAY...Mostly clear. Lows 48-58. Highs 76-86. West winds 10 to 20 mph with gusts to 35 mph. .WEDNESDAY...Mostly clear. Lows 48-58. Highs 78-88. West winds 10 to 20 mph with gusts to 30 mph. .THURSDAY...Partly cloudy. Isolated showers and thunderstorms. Lows 50-60. Highs 78-88. .FRIDAY...Mostly clear. Isolated showers and thunderstorms. Lows 50-60. Highs 77-87.