COZ203-291100-
COZ203-291100-
Lower Colorado River-
1258 PM MDT Tue Jul 28 2026

Fire Weather Planning Forecast for Wrn Colorado and Ern Utah
National Weather Service Grand Junction CO
1258 PM MDT Tue Jul 28 2026

.DISCUSSION...Showers and thunderstorms are expected primarily 
over the high terrain at least through Thursday before rain 
potential decreases into the weekend. Thunderstorms have been 
producing strong outflow winds, so this will continue to be a 
threat through the mid-week. Slow-moving storms will also be 
capable of producing localized heavy rain which will threaten 
flash flooding and debris flows over burn scars. Critical fire 
weather conditions remain out of the forecast while elevated 
moisture persists.


...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....20 percent. 
Min temperature.....63-73 F near 6000 feet 
                    57-67 F near 8000 feet. 
Max humidity........44-54%. 
20-foot winds.......Downslope/downvalley winds 3 to 6 mph. 
                    Localized gusts up to 20 mph in the evening. 
CWR.................10 percent. 
15K Ft MSL Winds....West 5 to 10 mph. 
Mixing Height.......10500 ft AGL until 2000, then 1000 ft AGL. 
Transport Winds.....East 5 mph. 
Smoke dispersal.....Poor. 

.WEDNESDAY...
Sky/weather.........Partly cloudy (40-50%). Isolated thunderstorms 
                    until 1200. Scattered showers. Scattered 
                    thunderstorms after 1200. 
Chc of lightning....40 percent. 
Max temperature.....86-96 F near 6000 feet 
                    77-87 F near 8000 feet. 
Min humidity........19-29%. 
20-foot winds.......Downslope/downvalley 3 to 6 mph becoming 
                    upslope/upvalley 4 to 8 mph by 1100.
CWR.................30 percent. 
15K Ft MSL Winds....Southwest 10 to 15 mph. 
Mixing Height.......2000 ft AGL until 1000, then 8500 ft AGL. 
Transport Winds.....South 5 mph until 1200, then southwest. 
Smoke dispersal.....Poor until 0900. Good after 1200. 

.WEDNESDAY NIGHT...
Sky/weather.........Partly cloudy (40-50%). Scattered showers and 
                    thunderstorms until 2400, isolated showers and 
                    thunderstorms after 2400. 
Chc of lightning....40 percent. 
Min temperature.....60-70 F near 6000 feet 
                    54-64 F near 8000 feet. 
Max humidity........53-63%. 
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....Southwest 15 to 20 mph. 
Mixing Height.......5500 ft AGL until 1900, then 1000 ft AGL. 
Transport Winds.....Northeast 5 mph. 
Smoke dispersal.....Poor. 

.THURSDAY...
Sky/weather.........Partly cloudy (30-40%). Isolated showers and 
                    thunderstorms. 
Chc of lightning....10 percent. 
Max temperature.....87-97 F near 6000 feet 
                    77-87 F near 8000 feet. 
Min humidity........13-23%. 
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....Northwest 10 to 15 mph. 
Mixing Height.......2000 ft AGL until 1000, then 11500 ft AGL. 
Transport Winds.....East 5 mph until 1200, then west. 
Smoke dispersal.....Poor until 0900. Good after 1200. 

.FORECAST FOR DAY 3 THROUGH 7...
.FRIDAY...Clear. Lows 60-70. Highs 92-102. Winds less than
15 mph. 
.SATURDAY...Clear. Lows 63-73. Highs 96-106. Winds less than
15 mph. 
.SUNDAY...Clear. Lows 64-74. Highs 96-106. Winds less than
15 mph. 
.MONDAY...Mostly clear. Lows 66-76. Highs 94-104. 
.TUESDAY...Mostly clear. Isolated showers and thunderstorms. Lows
63-73. Highs 93-103.