Colorado River Headwaters (COZ205) - Fire Weather Forecast

COZ205-271130-
COZ205-271130-
Colorado River Headwaters-
120 PM MDT Sat Sep 26 2026

Fire Weather Planning Forecast for Wrn Colorado and Ern Utah
National Weather Service Grand Junction CO
120 PM MDT Sat Sep 26 2026

.DISCUSSION...There are a few isolated thunderstorms across the
region over the higher terrain this afternoon, but otherwise 
expect mostly quiet conditions today and tomorrow with 
temperatures near normal to five degrees above normal. Cooler wet 
weather moves into the region Monday through mid week and dries 
out for the end of the week. 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 clear (20-30%). 
Chc of lightning....0 percent. 
Min temperature.....41-51 F. 
Max humidity........61-76%. 
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....Southwest 10 to 15 mph. 
Mixing Height.......5000 ft AGL until 1900, then 1000 ft AGL. 
Transport Winds.....South 5 mph. 
Smoke dispersal.....Poor. 

.SUNDAY...
Sky/weather.........Partly cloudy (50-60%) until 1200, then mostly 
                    cloudy (70-80%). Isolated showers and 
                    thunderstorms after 1200. 
Chc of lightning....10 percent. 
Max temperature.....63-73 F. 
Min humidity........25-35%. 
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....South 15 to 20 mph. 
Mixing Height.......1000 ft AGL until 1000, then 7000 ft AGL. 
Transport Winds.....South 5 mph. 
Smoke dispersal.....Poor until 0900. Good after 1200. 

.SUNDAY NIGHT...
Sky/weather.........Mostly cloudy (70-80%). Isolated thunderstorms 
                    until 2400. Isolated showers. 
Chc of lightning....20 percent. 
Min temperature.....42-52 F. 
Max humidity........68-83%. 
20-foot winds.......Downslope/downvalley winds 3 to 6 mph. 
                    Localized gusts up to 20 mph in the evening. 
CWR.................10 percent. 
15K Ft MSL Winds....Southwest 20 to 25 mph. 
Mixing Height.......3500 ft AGL until 1900, then 1000 ft AGL. 
Transport Winds.....South 5 mph. 
Smoke dispersal.....Poor. 

.MONDAY...
Sky/weather.........Mostly cloudy (70-80%). Scattered showers until 
                    1200, then numerous showers and isolated 
                    thunderstorms. 
Chc of lightning....20 percent. 
Max temperature.....54-64 F. 
Min humidity........51-61%. 
20-foot winds.......Downslope/downvalley 3 to 6 mph becoming 
                    upslope/upvalley 4 to 8 mph by 1100.
CWR.................60 percent. 
15K Ft MSL Winds....Southwest 15 to 20 mph decreasing to 5 to 10 
                    mph in the afternoon. 
Mixing Height.......3500 ft AGL. 
Transport Winds.....South 5 mph. 
Smoke dispersal.....Poor. 

.FORECAST FOR DAY 3 THROUGH 7...
.TUESDAY...Showers and scattered thunderstorms. Lows 39-49. Highs
53-63. Winds less than 15 mph. 
.WEDNESDAY...Partly cloudy. Scattered showers and isolated
thunderstorms. Lows 37-47. Highs 57-67. Winds less than 15 mph. 
.THURSDAY...Mostly clear. Isolated showers and thunderstorms.
Lows 36-46. Highs 60-70. Winds less than 15 mph. 
.FRIDAY...Clear. Lows 37-47. Highs 61-71. 
.SATURDAY...Mostly clear. Isolated showers and thunderstorms.
Lows 38-48. Highs 61-71.