Colorado River Headwaters (COZ205) - Fire Weather Forecast

COZ205-011130-
COZ205-011130-
Colorado River Headwaters-
120 PM MDT Wed Sep 30 2026

Fire Weather Planning Forecast for Wrn Colorado and Ern Utah
National Weather Service Grand Junction CO
120 PM MDT Wed Sep 30 2026

.DISCUSSION...Warmer and drier conditions return tomorrow and 
persist through the remainder of the forecast period. Critical 
fire weather conditions are not expected. 


...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.........Mostly cloudy (60-70%) until 2400, then partly 
                    cloudy (40-50%). Isolated showers and 
                    thunderstorms until 2400. 
Chc of lightning....10 percent. 
Min temperature.....35-45 F. 
Max humidity........70-85%. 
Snow Level..........Near 11400 ft. 
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....Northeast 20 to 30 mph. 
Mixing Height.......4000 ft AGL until 1900, then 1000 ft AGL. 
Transport Winds.....Northeast 5 mph. 
Smoke dispersal.....Poor. 

.THURSDAY...
Sky/weather.........Mostly sunny (20-30%). 
Chc of lightning....0 percent. 
Max temperature.....63-73 F. 
Min humidity........23-33%. 
Snow Level..........Near 11600 ft. 
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....Northeast 15 to 20 mph becoming north 10 to 15 
                    mph in the afternoon. 
Mixing Height.......2000 ft AGL until 1100, then 7000 ft AGL. 
Transport Winds.....East 5 mph until 1200, then north. 
Smoke dispersal.....Poor until 1200. Fair after 1500. 

.THURSDAY NIGHT...
Sky/weather.........Mostly clear (10-20%). 
Chc of lightning....0 percent. 
Min temperature.....38-48 F. 
Max humidity........58-73%. 
Snow Level..........Near 12100 ft. 
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....North 10 to 15 mph increasing to northwest 15 
                    to 20 mph after midnight. 
Mixing Height.......2500 ft AGL until 2000, then 500 ft AGL. 
Transport Winds.....West 5 mph until 2400, then south. 
Smoke dispersal.....Poor. 

.FRIDAY...
Sky/weather.........Mostly sunny (10-20%). 
Chc of lightning....0 percent. 
Max temperature.....66-76 F. 
Min humidity........19-29%. 
Snow Level..........Near 11900 ft. 
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. 
Mixing Height.......1500 ft AGL until 1100, then 6500 ft AGL until 
                    1700, then 3000 ft AGL. 
Transport Winds.....South 5 mph until 1200, then west. 
Smoke dispersal.....Poor until 1200, then fair. 

.FORECAST FOR DAY 3 THROUGH 7...
.SATURDAY...Mostly clear. Lows 39-49. Highs 66-76. Winds less
than 15 mph. 
.SUNDAY...Mostly clear. Lows 40-50. Highs 67-77. Winds less than
15 mph. 
.MONDAY...Mostly clear. Isolated showers and thunderstorms. Lows
41-51. Highs 64-74. Winds less than 15 mph. 
.TUESDAY...Partly cloudy. Scattered showers and isolated
thunderstorms. Lows 41-51. Highs 60-70. 
.WEDNESDAY...Mostly clear. Isolated showers and thunderstorms.
Lows 38-48. Highs 63-73.