COZ203-261045-
COZ203-261045-
Lower Colorado River-
1233 PM MDT Tue Aug 25 2026

Fire Weather Planning Forecast for Wrn Colorado and Ern Utah
National Weather Service Grand Junction CO
1233 PM MDT Tue Aug 25 2026

.DISCUSSION...
Moisture decreases this week, but enough remains in place to keep
isolated to scattered mountain showers and thunderstorms in the 
forecast each afternoon. The potential for localized heavy 
rainfall keeps flash flood and debris flow concerns elevated for 
newer burn scars and areas of susceptible terrain. Other concerns 
with afternoon convection include lightning and gusty outflow 
winds over 35 mph. Stronger afternoon wind gusts Friday may allow
for a return of localized critical fire weather conditions.


...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.....58-68 F near 6000 feet 
                    52-62 F near 8000 feet. 
Max humidity........41-51%. 
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 5 to 10 mph. 
Mixing Height.......9000 ft AGL until 2000, then 1000 ft AGL. 
Transport Winds.....North 5 mph until 2400, then east. 
Smoke dispersal.....Poor. 

.WEDNESDAY...
Sky/weather.........Partly cloudy (40-50%). Isolated showers. 
                    Isolated thunderstorms after 1200. 
Chc of lightning....10 percent. 
Max temperature.....84-94 F near 6000 feet 
                    75-85 F near 8000 feet. 
Min humidity........12-22%. 
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 5 to 10 mph. 
Mixing Height.......1000 ft AGL until 1000. 11000 ft AGL after 
                    1100. 
Transport Winds.....East 5 mph until 1200, then west. 
Smoke dispersal.....Poor until 1200. Good after 1500. 

.WEDNESDAY NIGHT...
Sky/weather.........Partly cloudy (40-50%). 
Chc of lightning....0 percent. 
Min temperature.....58-68 F near 6000 feet 
                    52-62 F near 8000 feet. 
Max humidity........39-49%. 
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 5 to 10 mph increasing to 10 to 15 mph 
                    after midnight. 
Mixing Height.......9000 ft AGL until 1900. 1000 ft AGL after 2000. 
Transport Winds.....North 5 to 10 mph until 2400, then east. 
Smoke dispersal.....Poor. 

.THURSDAY...
Sky/weather.........Partly cloudy (30-40%) until 1200, then mostly 
                    sunny (20-30%). Isolated showers and 
                    thunderstorms after 1200. 
Chc of lightning....10 percent. 
Max temperature.....84-94 F near 6000 feet 
                    75-85 F near 8000 feet. 
Min humidity........12-22%. 
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....West 10 to 15 mph. 
Mixing Height.......1500 ft AGL until 1000. 13000 ft AGL after 
                    1200. 
Transport Winds.....East 5 mph until 1200, then west. 
Smoke dispersal.....Poor until 0900. Good after 1200. 

.FORECAST FOR DAY 3 THROUGH 7...
.FRIDAY...Partly cloudy. Lows 59-69. Highs 87-97. Winds less than
15 mph. 
.SATURDAY...Partly cloudy. Isolated showers and thunderstorms.
Lows 60-70. Highs 84-94. Southwest winds 10 to 20 mph with gusts
to  30 mph. 
.SUNDAY...Partly cloudy. Scattered showers and thunderstorms.
Lows 56-66. Highs 79-89. Winds less than 15 mph. 
.MONDAY...Partly cloudy. Scattered showers and thunderstorms.
Lows 54-64. Highs 78-88. 
.TUESDAY...Partly cloudy. Isolated showers and thunderstorms.
Lows 54-64. Highs 79-89.