Colorado River Headwaters (COZ205) - Fire Weather Forecast

Severe Weather and Heavy Rain from the Great Lakes to the Mid-Atlantic; Heat Persists in the East

Widespread strong thunderstorms with damaging winds and locally heavy rain are expected from the Upper Ohio Valley into the southern Mid-Atlantic today and portions of the central Appalachians and Carolinas on Saturday. Monsoonal moisture will bring a flash flooding threat to the Desert Southwest. Sweltering heat persists from the Plains to the southern Mid-Atlantic through tonight. Read More >

COZ205-052300- COZ205-052300- Colorado River Headwaters- 1255 AM MDT Sat Sep 5 2026 Fire Weather Planning Forecast for Wrn Colorado and Ern Utah National Weather Service Grand Junction CO 1255 AM MDT Sat Sep 5 2026 .DISCUSSION...Critical fire weather conditions are not expected over the next week. A stronger push of moisture late Sunday will bring better rain chances across much of the area by early next week. Moderate to heavy rainfall rates can be expected with storms these storms on Monday. Temperatures will remain near normal. ...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%) until 1200, then mostly cloudy (60-70%). Isolated showers and thunderstorms after 1200. Chc of lightning....0 percent. Max temperature.....72-82 F. Min humidity........20-30%. 20-foot winds.......Downslope/downvalley 3 to 6 mph becoming upslope/upvalley 4 to 8 mph by 1100. CWR.................0 percent. 15K Ft MSL Winds....Southwest 15 to 20 mph. Mixing Height.......1500 ft AGL until 1000, then 9000 ft AGL. Transport Winds.....Southwest 5 mph. Smoke dispersal.....Poor until 0900. Good after 1200. .TONIGHT... Sky/weather.........Partly cloudy (50-60%). Chc of lightning....0 percent. Min temperature.....47-57 F. Max humidity........54-64%. 20-foot winds.......Upslope/upvalley 4 to 8 mph becoming downslope/downvalley 3 to 6 mph by sunset. CWR.................0 percent. 15K Ft MSL Winds....South 10 to 15 mph. Mixing Height.......7000 ft AGL until 1900, then 1000 ft AGL. Transport Winds.....South 5 mph. Smoke dispersal.....Poor. .SUNDAY... Sky/weather.........Partly cloudy (40-50%). Isolated showers and thunderstorms after 1200. Chc of lightning....10 percent. Max temperature.....73-83 F. Min humidity........19-29%. 20-foot winds.......Downslope/downvalley 3 to 6 mph becoming upslope/upvalley 4 to 8 mph by 1100. CWR.................10 percent. 15K Ft MSL Winds....Southwest 10 to 15 mph. Mixing Height.......1500 ft AGL until 1000. 8000 ft AGL after 1300. Transport Winds.....Southwest 5 mph. Smoke dispersal.....Poor until 0900. Good after 1200. .FORECAST FOR DAY 3 THROUGH 7... .LABOR DAY...Partly cloudy. Scattered showers and thunderstorms. Lows 49-59. Highs 66-76. Southwest winds 10 to 20 mph with gusts to 35 mph. .TUESDAY...Partly cloudy. Isolated showers and thunderstorms. Lows 45-55. Highs 69-79. Winds less than 15 mph. .WEDNESDAY...Partly cloudy. Scattered showers and isolated thunderstorms. Lows 45-55. Highs 72-82. Winds less than 15 mph. .THURSDAY...Partly cloudy. Scattered showers and thunderstorms. Lows 46-56. Highs 70-80. .FRIDAY...Partly cloudy. Scattered showers and thunderstorms. Lows 46-56. Highs 69-79.