COZ205-251045-
COZ205-251045-
Colorado River Headwaters-
1235 PM MDT Mon Aug 24 2026

Fire Weather Planning Forecast for Wrn Colorado and Ern Utah
National Weather Service Grand Junction CO
1235 PM MDT Mon Aug 24 2026

.DISCUSSION...

Moisture decreases this week, but enough remains in place to keep
mountain showers and thunderstorms in the forecast each 
afternoon. The potential for localized heavy rainfall keeps flash 
flood and debris flow concerns elevated for newer burn scars and 
areas of susceptible terrain. Other concerns with afternoon 
convection include lightning and gusty outflow winds near or above
35 mph. Stronger afternoon wind gusts on Friday and Saturday may 
allow for a return of localized critical fire weather conditions. 

...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....20 percent. 
Min temperature.....50-60 F. 
Max humidity........58-73%. 
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....West 10 to 15 mph. 
Mixing Height.......5000 ft AGL until 2000, then 1000 ft AGL. 
Transport Winds.....East 5 mph until 2400, then southeast. 
Smoke dispersal.....Poor. 

.TUESDAY...
Sky/weather.........Mostly sunny (10-20%) until 1200, then partly 
                    cloudy (30-40%). Isolated showers and 
                    thunderstorms after 1200. 
Chc of lightning....20 percent. 
Max temperature.....76-86 F. 
Min humidity........19-29%. 
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....Northwest 10 to 15 mph. 
Mixing Height.......1500 ft AGL until 1000, then 9000 ft AGL. 
Transport Winds.....Southwest 5 mph until 1200, then northwest. 
Smoke dispersal.....Poor until 0900. Good after 1200. 

.TUESDAY NIGHT...
Sky/weather.........Mostly clear (20-30%). Isolated showers and 
                    thunderstorms until 2400. 
Chc of lightning....10 percent. 
Min temperature.....50-60 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....Northwest 10 to 15 mph. 
Mixing Height.......7500 ft AGL until 1900. 500 ft AGL after 2000. 
Transport Winds.....North 5 mph until 2400, then east. 
Smoke dispersal.....Poor. 

.WEDNESDAY...
Sky/weather.........Partly cloudy (40-50%). Scattered showers and 
                    thunderstorms after 1200. 
Chc of lightning....20 percent. 
Max temperature.....76-86 F. 
Min humidity........18-28%. 
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....Northwest 10 to 15 mph. 
Mixing Height.......2000 ft AGL until 1000. 9000 ft AGL after 1200. 
Transport Winds.....South 5 mph until 1200, then northwest. 
Smoke dispersal.....Poor until 1200, then good until 1500, then 
                    fair. 

.FORECAST FOR DAY 3 THROUGH 7...
.THURSDAY...Partly cloudy. Isolated showers and thunderstorms.
Lows 47-57. Highs 76-86. Winds less than 15 mph. 
.FRIDAY...Partly cloudy. Isolated showers and thunderstorms. Lows
48-58. Highs 77-87. Winds less than 15 mph. 
.SATURDAY...Partly cloudy. Scattered showers and thunderstorms.
Lows 49-59. Highs 74-84. West winds 10 to 20 mph with gusts to 
30 mph. 
.SUNDAY...Partly cloudy. Scattered showers and thunderstorms.
Lows 46-56. Highs 71-81. 
.MONDAY...Partly cloudy. Scattered showers and thunderstorms.
Lows 46-56. Highs 71-81.