COZ205-200000-
COZ205-200000-
Colorado River Headwaters-
152 AM MDT Sat Sep 19 2026

Fire Weather Planning Forecast for Wrn Colorado and Ern Utah
National Weather Service Grand Junction CO
152 AM MDT Sat Sep 19 2026

.DISCUSSION...A system passing across the Northern Rockies will 
continue to provide support for shower and thunderstorm 
development across the area early this morning with redevelopment
again this afternoon. Coverage will be less than days past and
rainfall rates should generally trend downward and outflow winds
become more of a concern near fires. Critical fire weather concern
remain very low. 

...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.........Partly cloudy (50-60%) until 1200, then mostly 
                    cloudy (60-70%). Isolated thunderstorms until 
                    1200. Scattered showers. Scattered 
                    thunderstorms after 1200. 
Chc of lightning....50 percent. 
Max temperature.....62-72 F. 
Min humidity........34-44%. 
20-foot winds.......Downslope/downvalley 3 to 6 mph becoming 
                    upslope/upvalley 4 to 8 mph by 1100.
CWR.................70 percent. 
15K Ft MSL Winds....Southwest 20 to 25 mph. 
Mixing Height.......2500 ft AGL until 1100, then 6000 ft AGL. 
Transport Winds.....South 5 mph until 1200, then southwest 10 to 15 
                    mph. 
Smoke dispersal.....Poor until 0900. Good after 1200. 

.TONIGHT...
Sky/weather.........Partly cloudy (30-40%). Isolated showers and 
                    thunderstorms until 2400, scattered showers after 
                    2400. 
Chc of lightning....20 percent. 
Min temperature.....37-47 F. 
Max humidity........75-90%. 
20-foot winds.......Upslope/upvalley 4 to 8 mph becoming 
                    downslope/downvalley 3 to 6 mph by sunset.
CWR.................20 percent. 
15K Ft MSL Winds....Southwest 25 to 35 mph. 
Mixing Height.......3000 ft AGL until 1900, then 1000 ft AGL. 
Transport Winds.....Southwest 5 mph. 
Smoke dispersal.....Poor. 

.SUNDAY...
Sky/weather.........Mostly sunny (20-30%). Isolated showers until 
                    1200. 
Chc of lightning....0 percent. 
Max temperature.....60-70 F. 
Min humidity........25-35%. 
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 25 to 35 mph decreasing to 20 to 25 mph in 
                    the afternoon. 
Mixing Height.......500 ft AGL until 0900. 7500 ft AGL after 1100. 
Transport Winds.....West 5 to 10 mph. 
Smoke dispersal.....Poor until 0900. Good after 1200. 

.FORECAST FOR DAY 3 THROUGH 7...
.MONDAY...Mostly clear. Lows 34-44. Highs 63-73. Winds less than
15 mph. 
.TUESDAY...Partly cloudy. Scattered showers and thunderstorms.
Lows 38-48. Highs 63-73. Winds less than 15 mph. 
.WEDNESDAY...Partly cloudy. Scattered showers and thunderstorms.
Lows 39-49. Highs 61-71. Winds less than 15 mph. 
.THURSDAY...Partly cloudy. Isolated showers and thunderstorms.
Lows 38-48. Highs 63-73. 
.FRIDAY...Partly cloudy. Scattered showers and isolated
thunderstorms. Lows 41-51. Highs 62-72.