Colorado River Headwaters (COZ205) - Fire Weather Forecast

Showers and Storms continue across the East; Heat, Critical Fire Weather, Drought, and Poor Air Quality continues in the West

A series of fronts will focus locally heavy showers and storms across portions of the central and eastern U.S. through the end of the workweek. Dangerous to extreme heat continues across the Southwest U.S., eventually spreading eastward over the weekend into early next week. Elevated fire weather conditions continue across the Great Basin, with degraded air quality lingering across the Northwest. Read More >

COZ205-052045- COZ205-052045- Colorado River Headwaters- 1035 PM MDT Tue Aug 4 2026 Fire Weather Planning Forecast for Wrn Colorado and Ern Utah National Weather Service Grand Junction CO 1035 PM MDT Tue Aug 4 2026 ...RED FLAG WARNING IN EFFECT FROM 1 PM UNTIL 8 PM MDT WEDNESDAY FOR GUSTY WINDS, LOW HUMIDITY AND DRY FUELS FOR COLORADO FIRE WEATHER ZONES 205 AND 293... .DISCUSSION... Hot and dry conditions will persist through the week. Red Flag Warnings are in effect for CO zones 205 and 293 from 1 PM to 8 PM Wednesday. Localized critical fire weather conditions are possible in other areas. Afternoon wind gusts are expected to become weaker later this week as high pressure builds. Wetting rains are not expected throughout the work week and into the weekend. ...GUSTY ERRATIC WINDS CAN BE EXPECTED NEAR ANY SHOWERS OR THUNDERSTORMS... ...THE SMOKE DATA IS CALCULATED FROM AN AVERAGE AT 6000 FEET MSL... ...RED FLAG WARNING IN EFFECT FROM 1 PM UNTIL 8 PM MDT WEDNESDAY FOR GUSTY WINDS, LOW HUMIDITY AND DRY FUELS FOR COLORADO FIRE WEATHER ZONES 205 AND 293... .REST OF TONIGHT... Sky/weather.........Mostly clear (10-20%). Patchy smoke. Chc of lightning....0 percent. Min temperature.....52-62 F. Max humidity........28-38%. 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....West 20 to 30 mph. Mixing Height.......500 ft AGL. Transport Winds.....West 5 mph. Smoke dispersal.....Poor. .WEDNESDAY... Sky/weather.........Mostly sunny (10-20%). Patchy smoke. Chc of lightning....0 percent. Max temperature.....80-90 F. Min humidity........4-9%. 20-foot winds.......Downslope/downvalley winds 4 to 8 mph becoming west 10 to 15 mph with gusts to 30 mph in the afternoon. CWR.................0 percent. 15K Ft MSL Winds....West 25 to 35 mph decreasing to 20 to 30 mph in the afternoon. Mixing Height.......1000 ft AGL until 0900. 12000 ft AGL after 1000. Transport Winds.....West 5 to 10 mph until 1200, then 20 to 25 mph. Smoke dispersal.....Poor until 0900. Excellent after 1200. .WEDNESDAY NIGHT... Sky/weather.........Mostly clear (10-20%). Patchy smoke. Chc of lightning....0 percent. Min temperature.....51-61 F. Max humidity........21-31%. 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....West 20 to 25 mph. Mixing Height.......9500 ft AGL until 2000, then 500 ft AGL. Transport Winds.....Northwest 5 to 10 mph until 2400, then south. Smoke dispersal.....Good until 2100, then poor. .THURSDAY... Sky/weather.........Mostly sunny (10-20%). Patchy smoke. Chc of lightning....0 percent. Max temperature.....83-93 F. Min humidity........4-9%. 20-foot winds.......Upslope/upvalley winds 4 to 8 mph. Localized gusts up to 30 mph in the afternoon. CWR.................0 percent. 15K Ft MSL Winds....Northwest 20 to 25 mph decreasing to 15 to 20 mph in the afternoon. Mixing Height.......1000 ft AGL until 0900. 14500 ft AGL after 1000. Transport Winds.....West 5 mph until 1200, then northwest 10 to 15 mph. Smoke dispersal.....Poor until 0900. Very good after 1200. .FORECAST FOR DAY 3 THROUGH 7... .FRIDAY...Clear. Lows 49-59. Highs 83-93. Winds less than 15 mph. .SATURDAY...Mostly clear. Lows 51-61. Highs 82-92. Winds less than 15 mph. .SUNDAY...Partly cloudy. Isolated showers and thunderstorms. Lows 52-62. Highs 82-92. Winds less than 15 mph. .MONDAY...Partly cloudy. Scattered showers and thunderstorms. Lows 52-62. Highs 80-90. .TUESDAY...Partly cloudy. Scattered showers and thunderstorms. Lows 50-60. Highs 78-88.