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Heat Wave Continues; Areas of Severe Thunderstorms and Heavy Rain

Prolonged and intense heat wave continues into Friday with relief expected by this weekend. Extreme Heat Warnings and Heat Advisories remain in effect for portions of the Ohio Valley and the Southeast. Unsettled weather could produce severe weather and excessive rainfall for parts of the Central and Eastern U.S. Read More >

COZ203-271245-
COZ203-271245-
Lower Colorado River-
238 PM MDT Thu Jun 26 2025

Fire Weather Planning Forecast for Wrn Colorado and Ern Utah
National Weather Service Grand Junction CO
238 PM MDT Thu Jun 26 2025

.DISCUSSION... Warm and dry conditions will continue over the 
coming days. Light winds are expected, but localized gusts 
exceeding 25 mph are possible. Moisture looks to move into our 
area sometime next week. 

...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 (10-20%). Haze. 
Chc of lightning....0 percent. 
Min temperature.....54-64 F. 
Max humidity........19-29%. 
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....Southwest 10 to 15 mph. 
Mixing Height.......13500 ft AGL until 2000, then 2500 ft AGL. 
Transport Winds.....West 5 to 10 mph until 2400, then southeast. 
Smoke dispersal.....Good until 2100, then poor. 

.FRIDAY...
Sky/weather.........Mostly sunny (10-20%). Haze. 
Chc of lightning....0 percent. 
Max temperature.....84-94 F near 6000 feet 
                    75-85 F near 8000 feet. 
Min humidity........4-9%. 
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....Southwest 10 to 15 mph. 
Mixing Height.......3000 ft AGL until 1000. 15500 ft AGL after 
                    1100. 
Transport Winds.....South 5 mph until 1200, then west 10 to 15 mph. 
Smoke dispersal.....Poor until 0900. Excellent after 1200. 

.FRIDAY NIGHT...
Sky/weather.........Mostly clear (10-20%). 
Chc of lightning....0 percent. 
Min temperature.....54-64 F. 
Max humidity........17-27%. 
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....Southwest 10 to 15 mph. 
Mixing Height.......13000 ft AGL until 2000, then 2000 ft AGL. 
Transport Winds.....West 5 to 10 mph until 2400, then southeast. 
Smoke dispersal.....Good until 2100, then poor. 

.SATURDAY...
Sky/weather.........Mostly sunny (10-20%). 
Chc of lightning....0 percent. 
Max temperature.....85-95 F near 6000 feet 
                    76-86 F near 8000 feet. 
Min humidity........4-9%. 
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....Southwest 10 to 15 mph. 
Mixing Height.......3000 ft AGL until 1000. 16000 ft AGL after 
                    1100. 
Transport Winds.....South 5 mph until 1200, then west. 
Smoke dispersal.....Poor until 0900. Very good after 1200. 

.FORECAST FOR DAY 3 THROUGH 7...
.SUNDAY...Mostly clear. Lows 57-67. Highs 88-98. Winds less than
15 mph. 
.MONDAY...Mostly clear. Lows 57-67. Highs 89-99. Winds less than
15 mph. 
.TUESDAY...Partly cloudy. Isolated showers and thunderstorms.
Lows 57-67. Highs 88-98. Winds less than 15 mph. 
.WEDNESDAY...Partly cloudy. Isolated showers and thunderstorms.
Lows 58-68. Highs 83-93. 
.THURSDAY...Partly cloudy. Scattered showers and thunderstorms.
Lows 57-67. Highs 83-93.