COZ205-241045-
COZ205-241045-
Colorado River Headwaters-
1237 PM MDT Thu Jul 23 2026

Fire Weather Planning Forecast for Wrn Colorado and Ern Utah
National Weather Service Grand Junction CO
1237 PM MDT Thu Jul 23 2026

.DISCUSSION...Critical fire weather conditions are not expected 
to develop thanks to elevated relative humidity and lighter winds.
Hot conditions will return to the region Friday and beyond with 
temperatures trending 5-10 degrees above average. Afternoon 
thunderstorms will form on terrain this afternoon, producing 
localized flash flooding, gusty winds, small hail, and lightning. 
Storms will wane in coverage Friday into the weekend, but flash 
flooding will remain a concern. 


...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.........Mostly cloudy (60-70%) until 2400, then partly 
                    cloudy (30-40%). Scattered showers and 
                    thunderstorms until 2400. 
Chc of lightning....40 percent. 
Min temperature.....53-63 F. 
Max humidity........72-87%. 
20-foot winds.......Upslope/upvalley 4 to 8 mph becoming 
                    downslope/downvalley 3 to 6 mph by sunset.
CWR.................30 percent. 
15K Ft MSL Winds....Northwest 10 to 15 mph. 
Mixing Height.......4500 ft AGL until 2000, then 1000 ft AGL. 
Transport Winds.....Southwest 5 mph until 2400, then south. 
Smoke dispersal.....Poor. 

.FRIDAY...
Sky/weather.........Mostly sunny (20-30%) until 1200, then partly 
                    cloudy (40-50%). Scattered showers until 
                    1200, isolated showers and thunderstorms after 
                    1200. 
Chc of lightning....20 percent. 
Max temperature.....79-89 F. 
Min humidity........23-33%. 
20-foot winds.......Downslope/downvalley 3 to 6 mph becoming 
                    upslope/upvalley 4 to 8 mph by 1100.
CWR.................20 percent. 
15K Ft MSL Winds....Northwest 10 to 15 mph becoming west 5 to 10 
                    mph in the afternoon. 
Mixing Height.......2000 ft AGL until 1000, then 8500 ft AGL. 
Transport Winds.....Northwest 5 mph. 
Smoke dispersal.....Poor until 0900. Fair after 1200. 

.FRIDAY NIGHT...
Sky/weather.........Partly cloudy (30-40%). Isolated showers and 
                    thunderstorms until 2400. 
Chc of lightning....10 percent. 
Min temperature.....56-66 F. 
Max humidity........56-71%. 
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 5 to 10 mph. 
Mixing Height.......6000 ft AGL until 2000, then 1000 ft AGL. 
Transport Winds.....Northeast 5 mph until 2400, then south. 
Smoke dispersal.....Poor. 

.SATURDAY...
Sky/weather.........Mostly sunny (20-30%) until 1200, then partly 
                    cloudy (40-50%). Scattered showers and 
                    thunderstorms after 1200. 
Chc of lightning....20 percent. 
Max temperature.....81-91 F. 
Min humidity........20-30%. 
20-foot winds.......Downslope/downvalley 3 to 6 mph becoming 
                    upslope/upvalley 4 to 8 mph by 1100.
CWR.................20 percent. 
15K Ft MSL Winds....Southwest 5 to 10 mph. 
Mixing Height.......1500 ft AGL until 0900. 9500 ft AGL after 1000. 
Transport Winds.....South 5 mph until 1200, then west. 
Smoke dispersal.....Poor until 0900. Fair after 1200. 

.FORECAST FOR DAY 3 THROUGH 7...
.SUNDAY...Partly cloudy. Scattered showers and thunderstorms.
Lows 54-64. Highs 80-90. Winds less than 15 mph. 
.MONDAY...Partly cloudy. Numerous showers and thunderstorms. Lows
54-64. Highs 79-89. Winds less than 15 mph. 
.TUESDAY...Mostly cloudy. Numerous showers and thunderstorms.
Lows 52-62. Highs 77-87. Winds less than 15 mph. 
.WEDNESDAY...Partly cloudy. Numerous showers and thunderstorms.
Lows 51-61. Highs 76-86. 
.THURSDAY...Partly cloudy. Scattered showers and thunderstorms.
Lows 50-60. Highs 76-86.