Colorado River Headwaters (COZ205) - Fire Weather Forecast

COZ205-051215-
COZ205-051215-
Colorado River Headwaters-
207 PM MDT Sun Oct 4 2026

Fire Weather Planning Forecast for Wrn Colorado and Ern Utah
National Weather Service Grand Junction CO
207 PM MDT Sun Oct 4 2026

.DISCUSSION...

Above normal temperatures and generally dry weather will continue
through most of the workweek. Isolated to scattered thunderstorms
over the high terrain, particularly over the southern Colorado 
mountains, are possible each afternoon. Wetting rain is unlikely 
most days, but chances are the greatest on Tuesday afternoon over 
the San Juan Mountains. Critical fire weather conditions are not 
in the forecast through the workweek. 

...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.........Clear (0-10%). 
Chc of lightning....0 percent. 
Min temperature.....43-53 F. 
Max humidity........49-59%. 
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 5 to 10 mph. 
Mixing Height.......4000 ft AGL until 1900, then 1000 ft AGL. 
Transport Winds.....West 5 mph until 2400, then south. 
Smoke dispersal.....Poor. 

.MONDAY...
Sky/weather.........Mostly sunny (20-30%). 
Chc of lightning....0 percent. 
Max temperature.....68-78 F. 
Min humidity........18-28%. 
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 5 to 10 mph. 
Mixing Height.......2000 ft AGL until 1100, then 7500 ft AGL. 
Transport Winds.....Southwest 5 mph until 1200, then northwest. 
Smoke dispersal.....Poor until 1200, then fair. 

.MONDAY NIGHT...
Sky/weather.........Partly cloudy (30-40%). 
Chc of lightning....0 percent. 
Min temperature.....43-53 F. 
Max humidity........51-61%. 
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 5 to 10 mph. 
Mixing Height.......1000 ft AGL. 
Transport Winds.....Northwest 5 mph until 2400, then southeast. 
Smoke dispersal.....Poor. 

.TUESDAY...
Sky/weather.........Mostly cloudy (60-70%) until 1200, then partly 
                    cloudy (40-50%). Isolated showers after 1200. 
Chc of lightning....0 percent. 
Max temperature.....68-78 F. 
Min humidity........16-26%. 
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....Northwest 5 mph. 
Mixing Height.......2000 ft AGL until 1100, then 9000 ft AGL until 
                    1700, then 4000 ft AGL. 
Transport Winds.....East 5 mph until 1200, then north. 
Smoke dispersal.....Poor until 1200, then fair. 

.FORECAST FOR DAY 3 THROUGH 7...
.WEDNESDAY...Mostly clear. Isolated showers and thunderstorms.
Lows 41-51. Highs 66-76. Winds less than 15 mph. 
.THURSDAY...Mostly clear. Isolated showers and thunderstorms.
Lows 40-50. Highs 65-75. Winds less than 15 mph. 
.FRIDAY...Clear. Lows 40-50. Highs 64-74. Winds less than 15 mph.
.SATURDAY...Mostly clear. Isolated showers. Lows 40-50. Highs
61-71. 
.SUNDAY...Partly cloudy. Scattered showers and isolated
thunderstorms. Lows 40-50. Highs 55-65.