COZ205-202315-
COZ205-202315-
Colorado River Headwaters-
104 AM MDT Sun Sep 20 2026

Fire Weather Planning Forecast for Wrn Colorado and Ern Utah
National Weather Service Grand Junction CO
104 AM MDT Sun Sep 20 2026

.DISCUSSION...

Aside from a few isolated showers along the high terrain, very 
little precipitation is expected across the region Sunday and 
Monday. Moderate gusts around 25 mph will occur at high elevations
Sunday, but surface conditions remain relatively moist. Thus, 
critical fire weather conditions are not expected in the 
foreseeable future. Active weather returns Tuesday.

...GUSTY ERRATIC WINDS CAN BE EXPECTED NEAR ANY SHOWERS
OR THUNDERSTORMS...
...THE SMOKE DATA IS CALCULATED FROM AN AVERAGE AT 6000 FEET MSL...


.TODAY...
Sky/weather.........Mostly sunny (20-30%). Isolated showers and 
                    thunderstorms. 
Chc of lightning....0 percent. 
Max temperature.....60-70 F. 
Min humidity........23-33%. 
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....West 25 to 35 mph decreasing to 20 to 25 mph in 
                    the afternoon. 
Mixing Height.......1500 ft AGL until 1000, then 7000 ft AGL. 
Transport Winds.....West 5 to 10 mph. 
Smoke dispersal.....Poor until 0900. Good after 1200. 

.TONIGHT...
Sky/weather.........Mostly clear (10-20%). 
Chc of lightning....0 percent. 
Min temperature.....36-46 F. 
Max humidity........58-73%. 
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 15 to 20 mph. 
Mixing Height.......5000 ft AGL until 1900, then 1000 ft AGL. 
Transport Winds.....Northwest 5 mph until 2400, then southeast. 
Smoke dispersal.....Poor. 

.MONDAY...
Sky/weather.........Mostly sunny (20-30%). 
Chc of lightning....0 percent. 
Max temperature.....62-72 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....West 15 to 20 mph. 
Mixing Height.......1000 ft AGL until 1000, then 7500 ft AGL. 
Transport Winds.....Southeast 5 mph until 1200, then west. 
Smoke dispersal.....Poor until 0900. Good after 1200. 

.FORECAST FOR DAY 3 THROUGH 7...
.TUESDAY...Partly cloudy. Scattered showers and isolated
thunderstorms. Lows 36-46. Highs 62-72. Winds less than 15 mph. 
.WEDNESDAY...Mostly cloudy. Scattered showers and thunderstorms.
Lows 40-50. Highs 60-70. Winds less than 15 mph. 
.THURSDAY...Partly cloudy. Isolated showers and thunderstorms.
Lows 38-48. Highs 63-73. Winds less than 15 mph. 
.FRIDAY...Partly cloudy. Scattered showers and thunderstorms.
Lows 40-50. Highs 62-72. 
.SATURDAY...Partly cloudy. Isolated showers and thunderstorms.
Lows 40-50. Highs 62-72.