COZ205-221915-
COZ205-221915-
Colorado River Headwaters-
901 PM MDT Thu May 21 2026

Fire Weather Planning Forecast for Wrn Colorado and Ern Utah...UPDATED
National Weather Service Grand Junction CO
901 PM MDT Thu May 21 2026

.DISCUSSION...The front settles near the southern border 
overnight and post frontal winds will leave localized areas of 
critical fire weather in place for Friday in far southwest 
Colorado. Warmer conditions arrive for the weekend with a downward
trend in afternoon gusts limiting the fire weather threat into 
early 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...


.REST OF TONIGHT...
Sky/weather.........Partly cloudy (30-40%). Scattered showers until 
                    2400, isolated showers after 2400. 
Chc of lightning....0 percent. 
Min temperature.....26-36 F. 
Max humidity........72-87%. 
20-foot winds.......Downslope/downvalley winds 3 to 6 mph. 
                    Localized gusts up to 20 mph late in the 
                    evening. 
CWR.................10 percent. 
15K Ft MSL Winds....West 35 to 45 mph decreasing to 30 to 40 mph 
                    after midnight. 
Mixing Height.......1000 ft AGL. 
Transport Winds.....Northwest 5 mph. 
Smoke dispersal.....Poor. 

.FRIDAY...
Sky/weather.........Partly cloudy (40-50%) until 1200, then mostly 
                    cloudy (60-70%). Isolated showers after 1200. 
Chc of lightning....0 percent. 
Max temperature.....53-63 F. 
Min humidity........18-28%. 
20-foot winds.......Upslope/upvalley winds 4 to 8 mph. Localized 
                    gusts up to 25 mph in the afternoon. 
CWR.................0 percent. 
15K Ft MSL Winds....West 20 to 30 mph decreasing to 15 to 20 mph in 
                    the afternoon. 
Mixing Height.......8500 ft AGL. 
Transport Winds.....West 5 mph until 1200, then 10 to 15 mph. 
Smoke dispersal.....Poor until 0900. Very good after 1200. 

.FRIDAY NIGHT...
Sky/weather.........Mostly cloudy (70-80%) until 2400, then partly 
                    cloudy (50-60%). Isolated showers. 
Chc of lightning....0 percent. 
Min temperature.....32-42 F. 
Max humidity........62-77%. 
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.......5500 ft AGL until 2100, then 1000 ft AGL. 
Transport Winds.....West 5 to 10 mph until 2400, then south. 
Smoke dispersal.....Fair until 2100, then poor. 

.SATURDAY...
Sky/weather.........Partly cloudy (30-40%). Isolated showers after 
                    1200. 
Chc of lightning....0 percent. 
Max temperature.....60-70 F. 
Min humidity........16-26%. 
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 20 to 25 mph. 
Mixing Height.......1000 ft AGL until 0800. 9500 ft AGL after 0900. 
Transport Winds.....West 5 to 10 mph. 
Smoke dispersal.....Poor until 0900. Very good after 1200. 

.FORECAST FOR DAY 3 THROUGH 7...
.SUNDAY...Mostly clear. Isolated showers and thunderstorms. Lows
34-44. Highs 66-76. Winds less than 15 mph. 
.MEMORIAL DAY...Mostly clear. Scattered showers and
thunderstorms. Lows 37-47. Highs 69-79. Winds less than 15 mph. 
.TUESDAY...Mostly cloudy. Showers and scattered thunderstorms.
Lows 38-48. Highs 61-71. Winds less than 15 mph. 
.WEDNESDAY...Partly cloudy. Scattered showers and thunderstorms.
Lows 36-46. Highs 64-74. 
.THURSDAY...Partly cloudy. Isolated showers and thunderstorms.
Lows 36-46. Highs 64-74.