COZ205-250015-
COZ205-250015-
Colorado River Headwaters-
202 AM MDT Sun May 24 2026

Fire Weather Planning Forecast for Wrn Colorado and Ern Utah
National Weather Service Grand Junction CO
202 AM MDT Sun May 24 2026

.DISCUSSION...

Showers and thunderstorms begin to increase in coverage on the 
mountains today and into Tuesday. Wetting rain chances will 
increase each day too as moisture increases. This will suppress 
any concern for critical fire weather conditions through mid-week. 
Southwest winds increase Wednesday ahead of another disturbance. 
This is expected to spread critical fire weather conditions from 
eastern UT into western CO through the remainder of the week.

...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.........Partly cloudy (40-50%). Isolated showers and 
                    thunderstorms after 1200. 
Chc of lightning....20 percent. 
Max temperature.....67-77 F. 
Min humidity........17-27%. 
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....West 20 to 25 mph. 
Mixing Height.......1000 ft AGL until 0900, then 10000 ft AGL. 
Transport Winds.....West 5 to 10 mph. 
Smoke dispersal.....Poor until 0900. Very good after 1200. 

.TONIGHT...
Sky/weather.........Partly cloudy (30-40%). Isolated showers and 
                    thunderstorms until 2400. 
Chc of lightning....10 percent. 
Min temperature.....41-51 F. 
Max humidity........57-67%. 
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 decreasing to 10 to 15 mph 
                    after midnight. 
Mixing Height.......6500 ft AGL until 2000, then 500 ft AGL. 
Transport Winds.....Northeast 5 to 10 mph until 2400, then east. 
Smoke dispersal.....Fair until 2100, then poor. 

.MEMORIAL DAY...
Sky/weather.........Mostly sunny (20-30%) until 1200, then mostly 
                    cloudy (60-70%). Scattered showers and 
                    thunderstorms after 1200. 
Chc of lightning....40 percent. 
Max temperature.....70-80 F. 
Min humidity........16-26%. 
20-foot winds.......Downslope/downvalley 3 to 6 mph becoming 
                    upslope/upvalley 4 to 8 mph by 1100.
CWR.................30 percent. 
15K Ft MSL Winds....Southwest 10 to 15 mph. 
Mixing Height.......1000 ft AGL until 0900. 7500 ft AGL after 1100. 
Transport Winds.....South 5 mph. 
Smoke dispersal.....Poor until 1200, then good until 1500, then 
                    fair. 

.FORECAST FOR DAY 3 THROUGH 7...
.TUESDAY...Mostly cloudy. Showers and scattered thunderstorms.
Lows 39-49. Highs 61-71. Winds less than 15 mph. 
.WEDNESDAY...Partly cloudy. Scattered showers and thunderstorms.
Lows 37-47. Highs 64-74. Winds less than 15 mph. 
.THURSDAY...Partly cloudy. Scattered showers and isolated
thunderstorms. Lows 36-46. Highs 69-79. Winds less than 15 mph. 
.FRIDAY...Mostly clear. Isolated showers and thunderstorms. Lows
38-48. Highs 65-75. 
.SATURDAY...Mostly clear. Isolated showers and thunderstorms.
Lows 36-46. Highs 64-74.