COZ205-210145-
COZ205-210145-
Colorado River Headwaters-
341 AM MDT Mon Jul 20 2026

Fire Weather Planning Forecast for Wrn Colorado and Ern Utah
National Weather Service Grand Junction CO
341 AM MDT Mon Jul 20 2026

.DISCUSSION...Afternoon and evening showers and thunderstorms 
will develop on the higher terrain daily through the coming week.
Isolated coverage today will become more widespread by Wednesday
as deeper moisture moves into the region. The main concerns will 
be lightning and heavy rainfall under the stronger convection. 
Some gusty outflow winds will also be possible along with some 
small hail. Temperatures five to ten degrees above normal today
and tomorrow will drop to near normal to five degrees below 
normal for the latter half of the week. 

...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 sunny (10-20%) until 1200, then partly 
                    cloudy (40-50%). Scattered showers and 
                    thunderstorms after 1200. 
Chc of lightning....40 percent. 
Max temperature.....84-94 F. 
Min humidity........16-26%. 
20-foot winds.......Upslope/upvalley winds 4 to 8 mph. Localized 
                    gusts up to 20 mph in the afternoon. 
CWR.................30 percent. 
15K Ft MSL Winds....East 5 to 10 mph. 
Mixing Height.......2000 ft AGL until 1000, then 9500 ft AGL. 
Transport Winds.....Northeast 5 mph. 
Smoke dispersal.....Poor until 0900. Fair after 1200. 

.TONIGHT...
Sky/weather.........Partly cloudy (40-50%). Scattered showers and 
                    thunderstorms until 2400. 
Chc of lightning....30 percent. 
Min temperature.....56-66 F. 
Max humidity........57-67%. 
20-foot winds.......Downslope/downvalley winds 3 to 6 mph. 
                    Localized gusts up to 20 mph in the evening. 
CWR.................20 percent. 
15K Ft MSL Winds....Southeast 10 to 15 mph shifting to the south 
                    after midnight. 
Mixing Height.......5500 ft AGL until 1900. 500 ft AGL after 2000. 
Transport Winds.....East 5 mph. 
Smoke dispersal.....Poor. 

.TUESDAY...
Sky/weather.........Mostly sunny (20-30%) until 1200, then mostly 
                    cloudy (60-70%). Scattered showers and 
                    thunderstorms after 1200. 
Chc of lightning....50 percent. 
Max temperature.....82-92 F. 
Min humidity........16-26%. 
20-foot winds.......Upslope/upvalley winds 4 to 8 mph. Localized 
                    gusts up to 20 mph in the afternoon. 
CWR.................40 percent. 
15K Ft MSL Winds....Southeast 10 to 15 mph. 
Mixing Height.......1000 ft AGL until 0900. 11000 ft AGL after 
                    1000. 
Transport Winds.....Southeast 5 mph. 
Smoke dispersal.....Poor until 0900. Good after 1200. 

.FORECAST FOR DAY 3 THROUGH 7...
.WEDNESDAY...Partly cloudy. Showers and scattered thunderstorms.
Lows 51-61. Highs 76-86. Winds less than 15 mph. 
.THURSDAY...Showers with numerous thunderstorms. Lows 51-61.
Highs 71-81. Winds less than 15 mph. 
.FRIDAY...Partly cloudy. Numerous showers and scattered
thunderstorms. Lows 50-60. Highs 74-84. Winds less than 15 mph. 
.SATURDAY...Partly cloudy. Scattered showers and thunderstorms.
Lows 52-62. Highs 76-86. 
.SUNDAY...Partly cloudy. Scattered showers and thunderstorms.
Lows 52-62. Highs 77-87.