COZ205-152315-
COZ205-152315-
Colorado River Headwaters-
109 AM MDT Fri May 15 2026

Fire Weather Planning Forecast for Wrn Colorado and Ern Utah
National Weather Service Grand Junction CO
109 AM MDT Fri May 15 2026

...RED FLAG WARNING IN EFFECT FROM NOON UNTIL 8 PM MDT THIS
EVENING FOR GUSTY WINDS, LOW HUMIDITY AND DRY FUELS FOR COLORADO
FIRE WEATHER ZONES 200, 202 AND 293, AS WELL AS UTAH FIRE WEATHER
ZONES 486 AND 487... 
...FIRE WEATHER WATCH IN EFFECT SATURDAY AFTERNOON THROUGH
SATURDAY EVENING FOR GUSTY WINDS, LOW HUMIDITY AND DRY FUELS FOR
COLORADO FIRE WEATHER ZONES 290 AND 292, AS WELL AS UTAH FIRE
WEATHER ZONE 490... 

.DISCUSSION...Warm...dry and windy conditions will continue the
next several days ahead of strong and cold system arriving by 
Sunday. As a result localized to widespread critical fire weather
conditions will develop with fire weather related watches and
warnings in place. The critical fire weather conditions will be
replaced by mountain snow and valley rain as we go into the new
week with temperatures dropping back below normal for a few days. 

...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 sunny (20-30%). 
Chc of lightning....0 percent. 
Max temperature.....70-80 F. 
Min humidity........8-13%. 
20-foot winds.......Downslope/downvalley winds 4 to 8 mph becoming 
                    west 10 to 15 mph with gusts to 35 mph in the 
                    afternoon. 
CWR.................0 percent. 
15K Ft MSL Winds....West 20 to 30 mph decreasing to 20 to 25 mph in 
                    the afternoon. 
Mixing Height.......1000 ft AGL until 0900. 13000 ft AGL after 
                    1100. 
Transport Winds.....Southwest 5 to 10 mph until 1200, then west 15 
                    to 20 mph. 
Smoke dispersal.....Poor until 0900. Excellent after 1200. 

.TONIGHT...
Sky/weather.........Partly cloudy (40-50%). 
Chc of lightning....0 percent. 
Min temperature.....42-52 F. 
Max humidity........42-52%. 
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 15 to 20 mph. 
Mixing Height.......10500 ft AGL until 2000, then 1000 ft AGL. 
Transport Winds.....West 5 to 10 mph until 2400, then northeast. 
Smoke dispersal.....Very good until 2100, then poor. 

.SATURDAY...
Sky/weather.........Partly cloudy (40-50%). Scattered showers and 
                    isolated thunderstorms after 1200. 
Chc of lightning....20 percent. 
Max temperature.....70-80 F. 
Min humidity........12-22%. 
20-foot winds.......Downslope/downvalley winds 4 to 8 mph becoming 
                    southwest 15 to 20 mph with gusts to 40 mph in 
                    the afternoon. 
CWR.................10 percent. 
15K Ft MSL Winds....Southwest 20 to 30 mph. 
Mixing Height.......500 ft AGL until 0800. 12000 ft AGL after 0900. 
Transport Winds.....South 5 to 10 mph until 1200, then southwest 20 
                    to 25 mph. 
Smoke dispersal.....Poor until 0900. Excellent after 1200. 

.FORECAST FOR DAY 3 THROUGH 7...
.SUNDAY...Mostly cloudy. Numerous showers and scattered
thunderstorms. Lows 36-46. Highs 59-69. Southwest winds 10 to
20 mph with gusts to  40 mph. 
.MONDAY...Cooler. Numerous showers and scattered thunderstorms.
Lows 32-42. Highs 43-53. West winds 10 to 20 mph with gusts to 
40 mph. 
.TUESDAY...Partly cloudy. Isolated showers and thunderstorms.
Lows 22-32. Highs 48-58. Winds less than 15 mph. 
.WEDNESDAY...Mostly clear. Isolated showers and thunderstorms.
Lows 25-35. Highs 55-65. 
.THURSDAY...Mostly clear. Isolated showers and thunderstorms.
Lows 30-40. Highs 62-72.