Colorado River Headwaters (COZ205) - Fire Weather Forecast

COZ205-202315-
COZ205-202315-
Colorado River Headwaters-
108 AM MDT Sat Jun 20 2026

Fire Weather Planning Forecast for Wrn Colorado and Ern Utah
National Weather Service Grand Junction CO
108 AM MDT Sat Jun 20 2026

...RED FLAG WARNING IN EFFECT FROM NOON UNTIL 10 PM MDT THIS
EVENING FOR GUSTY WINDS, LOW HUMIDITY AND DRY FUELS FOR COLORADO
FIRE WEATHER ZONES 200, 201, 202, 203 BELOW 8000 FEET, 205 BELOW
8000 FEET, 207, 290, 291, 292, 293, 294 AND 295 BELOW 9000 FEET,
AS WELL AS UTAH FIRE WEATHER ZONES 486, 487, 490 AND 491... 

.DISCUSSION...

Winds on Saturday will ramp up once again, with peak afternoon 
gusts generally in the range of 30-40 mph with some localized 
areas potentially seeing 45 mph gusts. This, paired with yet 
another day of single digit relative humidity, will prompt 
widespread critical fire weather conditions, and thus Red Flag 
Warnings are in place for all zones with critical fuels. Sunday 
and beyond, fire weather concerns weaken, though winds and 
relative will still meet critical fire weather thresholds for some
locations.

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


...RED FLAG WARNING IN EFFECT FROM NOON TODAY TO 10 PM MDT THIS
EVENING FOR GUSTY WINDS, LOW HUMIDITY AND DRY FUELS...

.TODAY...
Sky/weather.........Partly cloudy (30-40%) until 1200, then mostly 
                    sunny (10-20%). 
Chc of lightning....0 percent. 
Max temperature.....78-88 F. 
Min humidity........6-11%. 
20-foot winds.......Downslope/downvalley winds 4 to 8 mph becoming 
                    southwest 15 to 20 mph with gusts to 40 mph in 
                    the afternoon. 
CWR.................0 percent. 
15K Ft MSL Winds....Southwest 20 to 30 mph. 
Mixing Height.......500 ft AGL until 0800. 13000 ft AGL after 0900. 
Transport Winds.....Southwest 10 to 15 mph until 1200, then 20 to 
                    30 mph. 
Smoke dispersal.....Poor until 0900, then excellent. 

.TONIGHT...
Sky/weather.........Mostly clear (20-30%). 
Chc of lightning....0 percent. 
Min temperature.....47-57 F. 
Max humidity........33-43%. 
20-foot winds.......West winds 10 to 15 mph with gusts to 40 mph in 
                    the evening becoming downslope/downvalley 3 to 
                    6 mph by sunset. 
CWR.................0 percent. 
15K Ft MSL Winds....West 20 to 30 mph. 
Mixing Height.......11500 ft AGL until 2000, then 1000 ft AGL. 
Transport Winds.....West 10 to 15 mph until 2400, then 5 mph. 
Smoke dispersal.....Excellent until 2100, then poor. 

.SUNDAY...
Sky/weather.........Mostly sunny (20-30%). Isolated showers and 
                    thunderstorms after 1200. 
Chc of lightning....0 percent. 
Max temperature.....72-82 F. 
Min humidity........11-16%. 
20-foot winds.......Downslope/downvalley winds 4 to 8 mph becoming 
                    west 10 to 15 mph in the afternoon. Localized 
                    gusts up to 30 mph. 
CWR.................0 percent. 
15K Ft MSL Winds....West 25 to 35 mph decreasing to 20 to 25 mph in 
                    the afternoon. 
Mixing Height.......1000 ft AGL until 0800. 14000 ft AGL after 
                    0900. 
Transport Winds.....West 10 to 15 mph until 1200, then 20 to 25 
                    mph. 
Smoke dispersal.....Poor until 0900. Excellent after 1200. 

.FORECAST FOR DAY 3 THROUGH 7...
.MONDAY...Mostly clear. Lows 43-53. Highs 75-85. West winds 10 to
20 mph with gusts to  30 mph. 
.TUESDAY...Mostly clear. Lows 44-54. Highs 78-88. West winds
10 to 20 mph with gusts to  30 mph. 
.WEDNESDAY...Mostly clear. Lows 45-55. Highs 78-88. West winds
10 to 20 mph with gusts to  30 mph. 
.THURSDAY...Partly cloudy. Isolated showers and thunderstorms.
Lows 46-56. Highs 76-86. 
.FRIDAY...Partly cloudy. Scattered showers and thunderstorms.
Lows 45-55. Highs 74-84.