COZ205-292330-
COZ205-292330-
Colorado River Headwaters-
128 AM MDT Sat Aug 29 2026

Fire Weather Planning Forecast for Wrn Colorado and Ern Utah
National Weather Service Grand Junction CO
128 AM MDT Sat Aug 29 2026

.DISCUSSION...
Moisture increases today and as disturbances move through, 
several rounds of showers and thunderstorms are expected. Some 
heavier rain is possible increasing chances for flash flooding, 
especially over burn scars and other susceptible terrain. Some 
storms will likely be able to produce strong wind gusts of 50 to 
55 mph. Afternoon convection will be the rule over the coming days
and with increased cloud cover and precip, temperatures will drop
to more seasonal values.

...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 (50-60%) until 1200, then mostly 
                    cloudy (60-70%). Isolated showers until 
                    1200, scattered showers and thunderstorms after 
                    1200. 
Chc of lightning....40 percent. 
Max temperature.....73-83 F. 
Min humidity........25-35%. 
20-foot winds.......Downslope/downvalley winds 4 to 8 mph becoming 
                    southwest 10 to 15 mph in the afternoon. 
                    Localized gusts up to 30 mph. 
CWR.................50 percent. 
15K Ft MSL Winds....Southwest 20 to 30 mph. 
Mixing Height.......1000 ft AGL until 0900. 6500 ft AGL after 1000. 
Transport Winds.....Southwest 5 to 10 mph until 1200, then 15 to 20 
                    mph. 
Smoke dispersal.....Poor until 0900, then fair until 1200, then 
                    very good until 1500, then good. 

.TONIGHT...
Sky/weather.........Mostly cloudy (60-70%). Scattered thunderstorms 
                    until 2400. Scattered showers. Isolated 
                    thunderstorms after 2400. 
Chc of lightning....50 percent. 
Min temperature.....46-56 F. 
Max humidity........70-85%. 
20-foot winds.......Downslope/downvalley winds 3 to 6 mph. 
                    Localized gusts up to 25 mph in the evening. 
CWR.................60 percent. 
15K Ft MSL Winds....Southwest 20 to 30 mph. 
Mixing Height.......4000 ft AGL until 1900, then 1000 ft AGL. 
Transport Winds.....South 5 mph. 
Smoke dispersal.....Poor. 

.SUNDAY...
Sky/weather.........Mostly cloudy (70-80%). Scattered showers and 
                    isolated thunderstorms until 1200, then 
                    numerous showers and scattered thunderstorms. 
Chc of lightning....50 percent. 
Max temperature.....70-80 F. 
Min humidity........32-42%. 
20-foot winds.......Downslope/downvalley 3 to 6 mph becoming 
                    upslope/upvalley 4 to 8 mph by 1100.
CWR.................60 percent. 
15K Ft MSL Winds....West 25 to 35 mph. 
Mixing Height.......2000 ft AGL until 1000, then 6500 ft AGL. 
Transport Winds.....Southwest 5 to 10 mph until 1200, then 15 to 20 
                    mph. 
Smoke dispersal.....Poor until 1200, then very good until 1500, 
                    then fair. 

.FORECAST FOR DAY 3 THROUGH 7...
.MONDAY...Mostly cloudy. Scattered showers and thunderstorms.
Lows 45-55. Highs 66-76. Winds less than 15 mph. 
.TUESDAY...Partly cloudy. Scattered showers and thunderstorms.
Lows 44-54. Highs 68-78. Winds less than 15 mph. 
.WEDNESDAY...Partly cloudy. Scattered showers and thunderstorms.
Lows 43-53. Highs 69-79. Southwest winds 10 to 20 mph with gusts
to  30 mph. 
.THURSDAY...Partly cloudy. Scattered showers and thunderstorms.
Lows 45-55. Highs 70-80. 
.FRIDAY...Partly cloudy. Scattered showers and thunderstorms.
Lows 46-56. Highs 72-82.