COZ205-312315-
COZ205-312315-
Colorado River Headwaters-
109 AM MDT Mon Aug 31 2026

Fire Weather Planning Forecast for Wrn Colorado and Ern Utah
National Weather Service Grand Junction CO
109 AM MDT Mon Aug 31 2026

.DISCUSSION...
Showers and thunderstorms are on tap again today with heavy rain,
gusty outflow winds, and lightning being the main concerns. Flash
flooding will be possible under and near the strongest storms and
showers. Moisture becomes limited Tuesday onwards with a 
noticeable downturn in convection expected. Fire weather concerns 
remain low.

...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.........Mostly cloudy (70-80%). Isolated showers until 
                    1200, numerous showers and scattered 
                    thunderstorms after 1200. 
Chc of lightning....50 percent. 
Max temperature.....69-79 F. 
Min humidity........36-46%. 
20-foot winds.......Downslope/downvalley 3 to 6 mph becoming 
                    upslope/upvalley 4 to 8 mph by 1100.
CWR.................70 percent. 
15K Ft MSL Winds....Southwest 15 to 20 mph. 
Mixing Height.......1000 ft AGL until 1000, then 5000 ft AGL until 
                    1700, then 3000 ft AGL. 
Transport Winds.....Southwest 5 mph. 
Smoke dispersal.....Poor. 

.TONIGHT...
Sky/weather.........Mostly cloudy (60-70%). Numerous showers and 
                    scattered thunderstorms until 2400, then 
                    scattered showers. 
Chc of lightning....50 percent. 
Min temperature.....43-53 F. 
Max humidity........79-94%. 
20-foot winds.......Upslope/upvalley 4 to 8 mph becoming 
                    downslope/downvalley 3 to 6 mph by sunset.
CWR.................60 percent. 
15K Ft MSL Winds....Southwest 15 to 20 mph increasing to 20 to 30 
                    mph after midnight. 
Mixing Height.......1500 ft AGL. 
Transport Winds.....South 5 mph. 
Smoke dispersal.....Poor. 

.TUESDAY...
Sky/weather.........Partly cloudy (40-50%). Isolated showers and 
                    thunderstorms after 1200. 
Chc of lightning....10 percent. 
Max temperature.....69-79 F. 
Min humidity........28-38%. 
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....West 20 to 30 mph becoming southwest 20 to 25 
                    mph in the afternoon. 
Mixing Height.......1500 ft AGL until 1000, then 7500 ft AGL. 
Transport Winds.....Southwest 5 mph until 1200, then west 10 to 15 
                    mph. 
Smoke dispersal.....Poor until 0900. Good after 1200. 

.FORECAST FOR DAY 3 THROUGH 7...
.WEDNESDAY...Mostly clear. Isolated showers and thunderstorms.
Lows 43-53. Highs 68-78. Southwest winds 10 to 20 mph with gusts
to  30 mph. 
.THURSDAY...Mostly clear. Isolated showers and thunderstorms.
Lows 43-53. Highs 71-81. Southwest winds 10 to 20 mph with gusts
to  30 mph. 
.FRIDAY...Mostly clear. Scattered showers and thunderstorms. Lows
44-54. Highs 72-82. Winds less than 15 mph. 
.SATURDAY...Partly cloudy. Scattered showers and thunderstorms.
Lows 46-56. Highs 72-82. 
.SUNDAY...Partly cloudy. Scattered showers and thunderstorms.
Lows 47-57. Highs 73-83.