Colorado River Headwaters (COZ205) - Fire Weather Forecast

Excessive Rainfall Potential for the Southeast; Heat Expands for Center of the Nation; Critical Fire Weather for Pacific Northwest

Flash flooding threatens areas from the Tennessee Valley to the Carolinas as storms repeat along a stalled front. Monsoonal storms may trigger flooding in the Southwest. Dangerous heat expands across the Desert Southwest, Plains, mid-Mississippi Valley and Southern Tier. Critical fire weather for interior Pacific Northwest. Cooler, drier air brings brief relief to the Great Lakes and Northeast. Read More >

COZ205-251115- COZ205-251115- Colorado River Headwaters- 108 PM MDT Fri Jul 24 2026 Fire Weather Planning Forecast for Wrn Colorado and Ern Utah National Weather Service Grand Junction CO 108 PM MDT Fri Jul 24 2026 .DISCUSSION... Afternoon and evening convection will be the predominant weather over the coming days. Available moisture will fluctuate through the period bringing some days with isolated showers and storms and other days with more widespread convection. Either way, heavy rainfall, hail, and gusty outflow winds are the main concerns. Critical fire weather conditions are not anticipated due to the increased CWR. ...GUSTY ERRATIC WINDS CAN BE EXPECTED NEAR ANY SHOWERS OR THUNDERSTORMS... ...THE SMOKE DATA IS CALCULATED FROM AN AVERAGE AT 6000 FEET MSL... .TONIGHT... Sky/weather.........Partly cloudy (40-50%). Isolated showers and thunderstorms until 2400. Chc of lightning....10 percent. Min temperature.....56-66 F. Max humidity........57-67%. 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....Southeast 5 to 10 mph. Mixing Height.......7000 ft AGL until 2000, then 500 ft AGL. Transport Winds.....North 5 mph until 2400, then southeast. Smoke dispersal.....Poor. .SATURDAY... Sky/weather.........Mostly sunny (10-20%) until 1200, then partly cloudy (40-50%). Scattered showers and thunderstorms after 1200. Chc of lightning....20 percent. Max temperature.....82-92 F. Min humidity........17-27%. 20-foot winds.......Downslope/downvalley 3 to 6 mph becoming upslope/upvalley 4 to 8 mph by 1100. CWR.................30 percent. 15K Ft MSL Winds....Southwest 5 to 10 mph. Mixing Height.......1000 ft AGL until 0900. 9000 ft AGL after 1000. Transport Winds.....Southwest 5 mph. Smoke dispersal.....Poor until 0900. Fair after 1200. .SATURDAY NIGHT... Sky/weather.........Partly cloudy (50-60%). Isolated showers and thunderstorms until 2400, scattered showers after 2400. Chc of lightning....10 percent. Min temperature.....57-67 F. Max humidity........55-70%. 20-foot winds.......Upslope/upvalley 4 to 8 mph becoming downslope/downvalley 3 to 6 mph by sunset. CWR.................10 percent. 15K Ft MSL Winds....West 5 to 10 mph. Mixing Height.......5500 ft AGL until 2000, then 1000 ft AGL. Transport Winds.....South 5 mph. Smoke dispersal.....Poor. .SUNDAY... Sky/weather.........Mostly cloudy (60-70%) until 1200, then partly cloudy (50-60%). Scattered showers and thunderstorms after 1200. Chc of lightning....40 percent. Max temperature.....82-92 F. Min humidity........17-27%. 20-foot winds.......Downslope/downvalley 3 to 6 mph becoming upslope/upvalley 4 to 8 mph by 1100. CWR.................40 percent. 15K Ft MSL Winds....North 5 to 10 mph. Mixing Height.......1000 ft AGL until 0900. 8000 ft AGL after 1000. Transport Winds.....Northwest 5 mph. Smoke dispersal.....Poor until 0900. Fair after 1200. .FORECAST FOR DAY 3 THROUGH 7... .MONDAY...Mostly cloudy. Numerous showers and thunderstorms. Lows 53-63. Highs 80-90. Winds less than 15 mph. .TUESDAY...Mostly cloudy. Numerous showers and thunderstorms. Lows 52-62. Highs 79-89. Winds less than 15 mph. .WEDNESDAY...Partly cloudy. Numerous showers and thunderstorms. Lows 51-61. Highs 77-87. Winds less than 15 mph. .THURSDAY...Partly cloudy. Scattered showers and thunderstorms. Lows 51-61. Highs 78-88. .FRIDAY...Partly cloudy. Scattered showers and thunderstorms. Lows 51-61. Highs 78-88.