COZ205-221015-
COZ205-221015-
Colorado River Headwaters-
1212 PM MDT Sat Mar 21 2026

Fire Weather Planning Forecast for Wrn Colorado and Ern Utah
National Weather Service Grand Junction CO
1212 PM MDT Sat Mar 21 2026

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM MDT THIS EVENING
FOR GUSTY WINDS, LOW HUMIDITY AND DRY FUELS FOR COLORADO FIRE
WEATHER ZONES 200 BELOW 8000 FEET, 201 BELOW 9000 FEET AND 202
BELOW 8000 FEET... 

.DISCUSSION...Hot, dry, and windy conditions will lead to 
critical weather conditions this afternoon where fuels are deemed 
critical (northwest Colorado). Wind gusts up to 40 mph will join 
forces with single-digit relative humidity values and unseasonably
warm temperatures. As such, Red Flag Warnings have been issued 
through 8 PM this evening. Conditions improve tomorrow, but hot
and dry weather persists through the seven-day forecast with high
pressure overhead. 

...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%). 
Chc of lightning....0 percent. 
Min temperature.....38-48 F. 
Max humidity........36-46%. 
20-foot winds.......Downslope/downvalley winds 3 to 6 mph. 
                    Localized gusts up to 40 mph in the evening. 
CWR.................0 percent. 
15K Ft MSL Winds....West 25 to 35 mph. 
Mixing Height.......7000 ft AGL until 1900, then 2000 ft AGL. 
Transport Winds.....West 5 to 10 mph. 
Smoke dispersal.....Fair until 2100, then poor. 

.SUNDAY...
Sky/weather.........Partly cloudy (30-40%). 
Chc of lightning....0 percent. 
Max temperature.....61-71 F. 
Min humidity........14-24%. 
20-foot winds.......Upslope/upvalley winds 4 to 8 mph. Localized 
                    gusts up to 25 mph in the afternoon. 
CWR.................0 percent. 
15K Ft MSL Winds....West 20 to 30 mph. 
Mixing Height.......2000 ft AGL until 1000, then 9000 ft AGL. 
Transport Winds.....West 5 mph until 1200, then 10 to 15 mph. 
Smoke dispersal.....Poor until 0900. Very good after 1200. 

.SUNDAY NIGHT...
Sky/weather.........Partly cloudy (50-60%). 
Chc of lightning....0 percent. 
Min temperature.....36-46 F. 
Max humidity........48-58%. 
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 20 to 25 mph increasing to 25 to 35 mph 
                    after midnight. 
Mixing Height.......7000 ft AGL until 1900, then 2500 ft AGL. 
Transport Winds.....Northwest 5 to 10 mph until 2400, then 
                    southeast. 
Smoke dispersal.....Poor. 

.MONDAY...
Sky/weather.........Partly cloudy (50-60%). 
Chc of lightning....0 percent. 
Max temperature.....60-70 F. 
Min humidity........17-27%. 
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. 
Mixing Height.......3500 ft AGL until 1100, then 8500 ft AGL. 
Transport Winds.....Southwest 5 to 10 mph until 1200, then west 20 
                    to 30 mph. 
Smoke dispersal.....Poor until 0900. Excellent after 1200. 

.FORECAST FOR DAY 3 THROUGH 7...
.TUESDAY...Partly cloudy. Lows 37-47. Highs 62-72. West winds
10 to 20 mph with gusts to  30 mph. 
.WEDNESDAY...Mostly clear. Lows 37-47. Highs 65-75. West winds
10 to 20 mph with gusts to  35 mph. 
.THURSDAY...Mostly clear. Lows 37-47. Highs 63-73. West winds
10 to 20 mph with gusts to  35 mph. 
.FRIDAY...Partly cloudy. Isolated showers. Lows 34-44. Highs
60-70. 
.SATURDAY...Partly cloudy. Isolated showers. Lows 33-43. Highs
59-69.