COZ205-021115-
COZ205-021115-
Colorado River Headwaters-
107 PM MDT Sat Aug 1 2026

Fire Weather Planning Forecast for Wrn Colorado and Ern Utah
National Weather Service Grand Junction CO
107 PM MDT Sat Aug 1 2026

.DISCUSSION...

Surface conditions have significantly dried out with relative 
humidities expected to drop to the low teens to single digits for 
most valleys. Temperatures are also pushing records through the 
weekend and potentially into the work week. Winds are generally 
below critical fire weather thresholds, though some localized 
gusts may prompt localized Red Flag conditions. Monday and Tuesday
will see breezier winds, particularly up north, so look for 
critical fire weather conditions to develop in those regions.

...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 clear (20-30%). 
Chc of lightning....0 percent. 
Min temperature.....55-65 F. 
Max humidity........37-47%. 
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.......10500 ft AGL until 2000, then 500 ft AGL. 
Transport Winds.....North 5 to 10 mph until 2400, then southeast. 
Smoke dispersal.....Fair until 2100, then poor. 

.SUNDAY...
Sky/weather.........Mostly sunny (20-30%) until 1200, then partly 
                    cloudy (40-50%). 
Chc of lightning....0 percent. 
Max temperature.....86-96 F. 
Min humidity........8-13%. 
20-foot winds.......Downslope/downvalley 3 to 6 mph becoming 
                    upslope/upvalley 4 to 8 mph by 1100.
CWR.................0 percent. 
15K Ft MSL Winds....Northwest 10 to 15 mph. 
Mixing Height.......1500 ft AGL until 1000. 13000 ft AGL after 
                    1100. 
Transport Winds.....Southwest 5 mph until 1200, then west. 
Smoke dispersal.....Poor until 0900. Very good after 1200. 

.SUNDAY NIGHT...
Sky/weather.........Partly cloudy (30-40%). 
Chc of lightning....0 percent. 
Min temperature.....56-66 F. 
Max humidity........29-39%. 
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....West 15 to 20 mph. 
Mixing Height.......11000 ft AGL until 2000, then 500 ft AGL. 
Transport Winds.....West 5 to 10 mph until 2400, then south. 
Smoke dispersal.....Fair until 2100, then poor. 

.MONDAY...
Sky/weather.........Mostly sunny (20-30%) until 1200, then partly 
                    cloudy (30-40%). Isolated showers and 
                    thunderstorms after 1200. 
Chc of lightning....0 percent. 
Max temperature.....83-93 F. 
Min humidity........11-16%. 
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....West 15 to 20 mph. 
Mixing Height.......500 ft AGL until 0800. 14000 ft AGL after 1100. 
Transport Winds.....Southwest 5 to 10 mph. 
Smoke dispersal.....Poor until 0900. Excellent after 1200. 

.FORECAST FOR DAY 3 THROUGH 7...
.TUESDAY...Mostly clear. Isolated showers and thunderstorms. Lows
50-60. Highs 81-91. West winds 10 to 20 mph with gusts to 
30 mph. 
.WEDNESDAY...Mostly clear. Lows 48-58. Highs 81-91. West winds
10 to 20 mph with gusts to  30 mph. 
.THURSDAY...Mostly clear. Lows 48-58. Highs 82-92. Winds less
than 15 mph. 
.FRIDAY...Mostly clear. Isolated showers and thunderstorms. Lows
51-61. Highs 82-92. 
.SATURDAY...Mostly clear. Isolated showers and thunderstorms.
Lows 52-62. Highs 82-92.