Colorado River Headwaters (COZ205) - Fire Weather Forecast

Showers and Storms in the East; Dangerously Hot and Dry in the West

A frontal boundary will bring scattered showers and storms to portions of the Central and Eastern U.S. through the end of the week. Meanwhile, dangerous heat will intensify across the Intermountain West and expand into the Central U.S. by early next week. Elevated wildfire conditions will develop across portions of the Northern/Central Plains and air quality issues will persist in the Northwest. Read More >

COZ205-061030- COZ205-061030- Colorado River Headwaters- 1229 PM MDT Wed Aug 5 2026 Fire Weather Planning Forecast for Wrn Colorado and Ern Utah National Weather Service Grand Junction CO 1229 PM MDT Wed Aug 5 2026 ...RED FLAG WARNING IN EFFECT FROM 1 PM UNTIL 8 PM MDT THIS EVENING FOR GUSTY WINDS, LOW HUMIDITY AND DRY FUELS FOR COLORADO FIRE WEATHER ZONES 205 AND 293... .DISCUSSION... Little change to the weather as we remain under high pressure. Hot and dry conditions will persist through the week. The Red Flag Warnings for zones 205 and 293 remain in effect from 1 to 8PM this evening. Afternoon breezes will be common. Localized critical fire weather conditions are possible tomorrow though, as of now, coverage is below criteria. ...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 UNTIL 8 PM MDT THIS EVENING FOR GUSTY WINDS, LOW HUMIDITY AND DRY FUELS... .TONIGHT... Sky/weather.........Mostly clear (20-30%). Patchy smoke. Chc of lightning....0 percent. Min temperature.....51-61 F. Max humidity........23-33%. 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.....82-92 F. Min humidity........4-9%. 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 decreasing to 10 to 15 mph in the afternoon. Mixing Height.......2000 ft AGL until 1000, then 12500 ft AGL. Transport Winds.....West 5 mph until 1200, then northwest 10 to 15 mph. Smoke dispersal.....Poor until 0900. Very good after 1200. .THURSDAY NIGHT... Sky/weather.........Clear (0-10%). Patchy smoke. Chc of lightning....0 percent. Min temperature.....52-62 F. Max humidity........20-30%. 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....Northwest 10 to 15 mph. Mixing Height.......10000 ft AGL until 2000, then 500 ft AGL. Transport Winds.....North 5 to 10 mph until 2400, then east. Smoke dispersal.....Good until 2100, then poor. .FRIDAY... Sky/weather.........Mostly sunny (10-20%). Chc of lightning....0 percent. Max temperature.....84-94 F. Min humidity........5-10%. 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....Northwest 15 to 20 mph decreasing to 10 to 15 mph in the afternoon. Mixing Height.......1000 ft AGL until 0900. 16500 ft AGL after 1000. Transport Winds.....Northeast 5 mph until 1200, then northwest. Smoke dispersal.....Poor until 0900. Very good after 1200. .FORECAST FOR DAY 3 THROUGH 7... .SATURDAY...Mostly clear. Lows 50-60. Highs 82-92. Winds less than 15 mph. .SUNDAY...Mostly clear. Isolated showers and thunderstorms. Lows 51-61. Highs 81-91. Winds less than 15 mph. .MONDAY...Partly cloudy. Isolated showers and thunderstorms. Lows 51-61. Highs 80-90. Winds less than 15 mph. .TUESDAY...Partly cloudy. Scattered showers and thunderstorms. Lows 50-60. Highs 78-88. .WEDNESDAY...Partly cloudy. Scattered showers and thunderstorms. Lows 50-60. Highs 77-87.