COZ205-281130-
COZ205-281130-
Colorado River Headwaters-
129 PM MDT Thu Aug 27 2026

Fire Weather Planning Forecast for Wrn Colorado and Ern Utah
National Weather Service Grand Junction CO
129 PM MDT Thu Aug 27 2026

.DISCUSSION...Scattered showers and storms continue today and 
tomorrow, mainly over the higher terrain. Some heavier showers and
storms are possible any may cause flash flooding over susceptible
areas and recent burn scars. Heading into the weekend, increasing
moisture will bring widespread cloud cover and an uptick in the 
coverage of showers and storms. As a result, critical fire 
weather conditions are not expected through the seven-day 
forecast.


...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 (40-50%). Isolated showers and 
                    thunderstorms until 2400. 
Chc of lightning....10 percent. 
Min temperature.....52-62 F. 
Max humidity........50-60%. 
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 increasing to 15 to 20 mph 
                    after midnight. 
Mixing Height.......7000 ft AGL until 2000, then 500 ft AGL. 
Transport Winds.....West 5 mph until 2400, then south. 
Smoke dispersal.....Poor. 

.FRIDAY...
Sky/weather.........Partly cloudy (40-50%). Isolated showers. 
                    Isolated thunderstorms after 1200. 
Chc of lightning....10 percent. 
Max temperature.....77-87 F. 
Min humidity........16-26%. 
20-foot winds.......Downslope/downvalley winds 4 to 8 mph becoming 
                    west 10 to 15 mph with gusts to 30 mph in the 
                    afternoon. 
CWR.................10 percent. 
15K Ft MSL Winds....West 20 to 25 mph. 
Mixing Height.......500 ft AGL until 0900. 10000 ft AGL after 1000. 
Transport Winds.....Southwest 5 mph until 1200, then west 10 to 15 
                    mph. 
Smoke dispersal.....Poor until 0900. Very good after 1200. 

.FRIDAY NIGHT...
Sky/weather.........Partly cloudy (50-60%). Isolated thunderstorms 
                    until 2400. Isolated showers. 
Chc of lightning....10 percent. 
Min temperature.....52-62 F. 
Max humidity........52-62%. 
20-foot winds.......Downslope/downvalley winds 3 to 6 mph. 
                    Localized gusts up to 25 mph in the evening. 
CWR.................20 percent. 
15K Ft MSL Winds....West 20 to 25 mph increasing to 20 to 30 mph 
                    after midnight. 
Mixing Height.......5500 ft AGL until 2000, then 500 ft AGL. 
Transport Winds.....Southwest 5 to 10 mph until 2400, then south. 
Smoke dispersal.....Poor. 

.SATURDAY...
Sky/weather.........Partly cloudy (40-50%) until 1200, then mostly 
                    cloudy (60-70%). Scattered showers. Scattered 
                    thunderstorms after 1200. 
Chc of lightning....40 percent. 
Max temperature.....75-85 F. 
Min humidity........22-32%. 
20-foot winds.......Downslope/downvalley winds 4 to 8 mph becoming 
                    southwest 10 to 15 mph with gusts to 35 mph in 
                    the afternoon. 
CWR.................40 percent. 
15K Ft MSL Winds....West 25 to 35 mph. 
Mixing Height.......1500 ft AGL until 0900, then 7500 ft AGL. 
Transport Winds.....Southwest 5 to 10 mph until 1200, then 15 to 20 
                    mph. 
Smoke dispersal.....Poor until 0900, then good until 1200, then 
                    excellent until 1500, then very good. 

.FORECAST FOR DAY 3 THROUGH 7...
.SUNDAY...Mostly cloudy. Numerous showers and thunderstorms. Lows
47-57. Highs 69-79. Southwest winds 10 to 20 mph with gusts to 
30 mph. 
.MONDAY...Mostly cloudy. Scattered showers and thunderstorms.
Lows 46-56. Highs 68-78. Winds less than 15 mph. 
.TUESDAY...Partly cloudy. Scattered showers and thunderstorms.
Lows 44-54. Highs 70-80. Winds less than 15 mph. 
.WEDNESDAY...Partly cloudy. Scattered showers and thunderstorms.
Lows 45-55. Highs 70-80. 
.THURSDAY...Partly cloudy. Scattered thunderstorms and isolated
showers. Lows 46-56. Highs 71-81.