COZ205-281130-
COZ205-281130-
Colorado River Headwaters-
127 PM MDT Wed May 27 2026

Fire Weather Planning Forecast for Wrn Colorado and Ern Utah
National Weather Service Grand Junction CO
127 PM MDT Wed May 27 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 207 AND 290, AS WELL AS UTAH FIRE WEATHER ZONES
486, 487 AND 490... 

...RED FLAG WARNING IN EFFECT FROM 1 PM UNTIL 8 PM MDT THURSDAY
FOR GUSTY WINDS, LOW HUMIDITY AND DRY FUELS FOR COLORADO FIRE
WEATHER ZONES 207 AND 290, AS WELL AS UTAH FIRE WEATHER ZONES
486, 487 AND 490... 

...FIRE WEATHER WATCH IN EFFECT FRIDAY AFTERNOON THROUGH FRIDAY
EVENING FOR GUSTY WINDS, LOW HUMIDITY AND DRY FUELS FOR COLORADO
FIRE WEATHER ZONES 207 AND 290, AS WELL AS UTAH FIRE WEATHER
ZONES 486, 487 AND 490... 

.DISCUSSION...
Critical fire weather conditions will occur across much of eastern
Utah and southwest Colorado due to gusty surface winds, low humidities
and critical fuels. This will occur each afternoon through Friday so
fire weather highlights have been issued through the period to account
for this behavior. Conditions improve Saturday onwards as temperatures
drop some allowing RH to increase while gusty winds decrease.

...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 (50-60%). Isolated showers and 
                    thunderstorms until 2400. 
Chc of lightning....10 percent. 
Min temperature.....41-51 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....West 10 to 15 mph increasing to southwest 15 to 
                    20 mph after midnight. 
Mixing Height.......9000 ft AGL until 2000, then 1000 ft AGL. 
Transport Winds.....Southeast 5 to 10 mph. 
Smoke dispersal.....Poor. 

.THURSDAY...
Sky/weather.........Partly cloudy (30-40%). Isolated showers and 
                    thunderstorms after 1200. 
Chc of lightning....10 percent. 
Max temperature.....71-81 F. 
Min humidity........12-22%. 
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....Southwest 15 to 20 mph. 
Mixing Height.......1500 ft AGL until 0900, then 13000 ft AGL. 
Transport Winds.....South 5 to 10 mph. 
Smoke dispersal.....Poor until 0900. Very good after 1200. 

.THURSDAY NIGHT...
Sky/weather.........Partly cloudy (50-60%) until 2400, then mostly 
                    cloudy (60-70%). Isolated showers and 
                    thunderstorms until 2400. 
Chc of lightning....10 percent. 
Min temperature.....44-54 F. 
Max humidity........60-75%. 
20-foot winds.......Upslope/upvalley 4 to 8 mph becoming 
                    downslope/downvalley 3 to 6 mph by sunset.
CWR.................10 percent. 
15K Ft MSL Winds....Southwest 15 to 20 mph. 
Mixing Height.......11500 ft AGL until 1900. 1000 ft AGL after 
                    2000. 
Transport Winds.....South 5 to 10 mph. 
Smoke dispersal.....Fair until 2100, then poor. 

.FRIDAY...
Sky/weather.........Partly cloudy (40-50%). Scattered showers and 
                    isolated thunderstorms after 1200. 
Chc of lightning....20 percent. 
Max temperature.....70-80 F. 
Min humidity........16-26%. 
20-foot winds.......Upslope/upvalley winds 4 to 8 mph. Localized 
                    gusts up to 25 mph in the afternoon. 
CWR.................10 percent. 
15K Ft MSL Winds....South 15 to 20 mph. 
Mixing Height.......1000 ft AGL until 0800. 12000 ft AGL after 
                    0900. 
Transport Winds.....South 5 to 10 mph until 1200, then 15 to 20 
                    mph. 
Smoke dispersal.....Poor until 0900. Excellent after 1200. 

.FORECAST FOR DAY 3 THROUGH 7...
.SATURDAY...Cooler. Mostly clear. Isolated showers and
thunderstorms. Lows 35-45. Highs 59-69. West winds 10 to 20 mph
with gusts to  30 mph. 
.SUNDAY...Mostly clear. Isolated showers and thunderstorms. Lows
33-43. Highs 63-73. Winds less than 15 mph. 
.MONDAY...Mostly clear. Isolated showers and thunderstorms. Lows
35-45. Highs 67-77. Winds less than 15 mph. 
.TUESDAY...Mostly clear. Isolated showers and thunderstorms. Lows
37-47. Highs 69-79. 
.WEDNESDAY...Partly cloudy. Isolated showers and thunderstorms.
Lows 38-48. Highs 68-78.