UTZ490-262345-
UTZ490-262345-
Colorado River Basin-
139 AM MDT Tue May 26 2026

Fire Weather Planning Forecast for Wrn Colorado and Ern Utah
National Weather Service Grand Junction CO
139 AM MDT Tue May 26 2026

...FIRE WEATHER WATCH IN EFFECT WEDNESDAY AFTERNOON THROUGH
WEDNESDAY EVENING FOR GUSTY WINDS, LOW HUMIDITY AND DRY FUELS FOR
COLORADO FIRE WEATHER ZONES 207 AND 290, AS WELL AS UTAH FIRE
WEATHER ZONES 486, 487 AND 490... 

.DISCUSSION...
Scattered showers and storms are expected again today. Drier flow
and stronger winds arrive on Wednesday and persist through 
Friday. All three days are expected to see widespread critical 
fire weather conditions, focused in eastern Utah and southwestern 
Colorado. Though dry conditions stay in place through the weekend,
winds will weaken during this period, reducing fire weather 
concerns.


...GUSTY ERRATIC WINDS CAN BE EXPECTED NEAR ANY SHOWERS
OR THUNDERSTORMS...
...THE SMOKE DATA IS CALCULATED FROM AN AVERAGE AT 6000 FEET MSL...


...FIRE WEATHER WATCH IN EFFECT FROM WEDNESDAY AFTERNOON THROUGH
WEDNESDAY EVENING...

.TODAY...
Sky/weather.........Mostly cloudy (60-70%) until 1200, then partly 
                    cloudy (40-50%). Near 5000 feet, isolated 
                    showers and thunderstorms. Near 7000 feet, 
                    isolated thunderstorms until 1200. Scattered 
                    showers. Scattered thunderstorms after 1200. 
Chc of lightning....20 percent. 
Max temperature.....73-83 F near 5000 feet 
                    61-71 F near 7000 feet. 
   24 hr trend......3 degrees cooler. 
Min humidity........20-30% near 5000 feet 
                    27-37% near 7000 feet. 
   24 hr trend......9% wetter. 
20-foot winds.......Downslope/downvalley 3 to 6 mph becoming 
                    upslope/upvalley 4 to 8 mph by 1100.
CWR.................30 percent. 
Mixing Height.......3500 ft AGL until 1000, then 9500 ft AGL. 
Transport Winds.....South 5 to 10 mph. 
Clearing Index......Less than 500 until 0800. 1050 after 1100. 

.TONIGHT...
Sky/weather.........Partly cloudy (30-40%). Isolated showers and 
                    thunderstorms until 2400. 
Chc of lightning....10 percent. 
Min temperature.....50-60 F. 
   24 hr trend......1 degree cooler. 
Max humidity........51-61%. 
   24 hr trend......21% drier. 
20-foot winds.......Upslope/upvalley 4 to 8 mph becoming 
                    downslope/downvalley 3 to 6 mph by sunset.
CWR.................10 percent. 
Mixing Height.......8000 ft AGL until 2000, then 1000 ft AGL. 
Transport Winds.....Southeast 5 to 10 mph. 
Clearing Index......1050 until 2000, then less than 500. 

.WEDNESDAY...
Sky/weather.........Mostly sunny (10-20%). 
Chc of lightning....0 percent. 
Max temperature.....80-90 F near 5000 feet 
                    69-79 F near 7000 feet. 
   24 hr trend......6 degrees warmer. 
Min humidity........7-12%. 
   24 hr trend......14% drier. 
20-foot winds.......South winds 10 to 15 mph with gusts to 35 mph. 
CWR.................0 percent. 
Mixing Height.......1000 ft AGL until 0800. 13500 ft AGL after 
                    0900. 
Transport Winds.....Southeast 10 to 15 mph until 1200, then south 
                    20 to 25 mph. 
Clearing Index......Less than 500 until 0800. 1050 after 0900. 

.FORECAST FOR DAY 3 THROUGH 7...
.THURSDAY...Mostly clear. Lows 51-61. Highs 84-94. South winds
10 to 20 mph with gusts to  35 mph. 
.FRIDAY...Mostly clear. Lows 52-62. Highs 77-87. Southwest winds
10 to 20 mph with gusts to  40 mph. 
.SATURDAY...Mostly clear. Lows 46-56. Highs 75-85. West winds
10 to 20 mph with gusts to  35 mph. 
.SUNDAY...Clear. Lows 48-58. Highs 81-91. 
.MONDAY...Mostly clear. Lows 51-61. Highs 82-92.