COZ205-260000-
COZ205-260000-
Colorado River Headwaters-
200 AM MDT Fri Sep 25 2026
Fire Weather Planning Forecast for Wrn Colorado and Ern Utah
National Weather Service Grand Junction CO
200 AM MDT Fri Sep 25 2026
.DISCUSSION...
A few showers and thunderstorms will be possible this afternoon,
mainly over the San Juans and central mountains. Most of eastern
Utah and NW Colorado will remain dry. Saturday and Sunday will be
mostly dry with a return to unsettled weather next week. Fire
weather concerns remain 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.........Mostly cloudy (60-70%). Isolated thunderstorms
until 1200. Scattered showers. Scattered
thunderstorms after 1200.
Chc of lightning....40 percent.
Max temperature.....56-66 F.
Min humidity........44-54%.
20-foot winds.......Upslope/upvalley winds 4 to 8 mph. Localized
gusts up to 20 mph in the afternoon.
CWR.................50 percent.
15K Ft MSL Winds....Southwest 15 to 20 mph.
Mixing Height.......4500 ft AGL.
Transport Winds.....Southwest 5 mph.
Smoke dispersal.....Poor.
.TONIGHT...
Sky/weather.........Partly cloudy (30-40%). Isolated showers and
thunderstorms until 2400.
Chc of lightning....20 percent.
Min temperature.....39-49 F.
Max humidity........76-91%.
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....West 20 to 25 mph.
Mixing Height.......3000 ft AGL until 1900, then 1000 ft AGL.
Transport Winds.....South 5 mph.
Smoke dispersal.....Poor.
.SATURDAY...
Sky/weather.........Mostly sunny (20-30%).
Chc of lightning....0 percent.
Max temperature.....61-71 F.
Min humidity........28-38%.
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 15 to 20 mph decreasing to 10 to 15 mph in
the afternoon.
Mixing Height.......1000 ft AGL until 1000. 7500 ft AGL after 1100.
Transport Winds.....Southwest 5 mph.
Smoke dispersal.....Poor until 0900. Fair after 1200.
.FORECAST FOR DAY 3 THROUGH 7...
.SUNDAY...Partly cloudy. Isolated showers and thunderstorms. Lows
38-48. Highs 62-72. Winds less than 15 mph.
.MONDAY...Mostly cloudy. Showers and scattered thunderstorms.
Lows 40-50. Highs 53-63. Winds less than 15 mph.
.TUESDAY...Showers and scattered thunderstorms. Lows 37-47. Highs
51-61. Winds less than 15 mph.
.WEDNESDAY...Partly cloudy. Scattered showers and isolated
thunderstorms. Lows 35-45. Highs 54-64.
.THURSDAY...Mostly clear. Isolated showers and thunderstorms.
Lows 33-43. Highs 58-68.