Colorado River Basin (UTZ490) - Fire Weather Forecast

UTZ490-280200-
UTZ490-280200-
Colorado River Basin-
357 AM MDT Tue May 27 2025

Fire Weather Planning Forecast for Wrn Colorado and Ern Utah
National Weather Service Grand Junction CO
357 AM MDT Tue May 27 2025

.DISCUSSION...Expect isolated to scattered afternoon showers and 
thunderstorms across the higher terrain of northeastern Utah and 
Western Colorado daily through Thursday with temperatures running 
about five degrees above normal. Convective activity drops off Friday
through the weekend with temperatures warming to mid to upper 90's 
in the lowers valleys and upper 70's to 80's in the mountains. With 
RH dropping into the lower teens across most of the region, 
conditions will dry out, but winds will remain light, limiting 
critical fire weather conditions to brief localized areas through the
weekend.

...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.........Near 5000 feet, mostly sunny (10-20%). Near 
                    7000 feet, mostly sunny (10-20%) until 1200, 
                    then partly cloudy (30-40%). 
Chc of lightning....0 percent. 
Max temperature.....81-91 F near 5000 feet 
                    70-80 F near 7000 feet. 
   24 hr trend......5 degrees warmer. 
Min humidity........7-12%. 
   24 hr trend......1% drier. 
20-foot winds.......Downslope/downvalley 3 to 6 mph becoming 
                    upslope/upvalley 4 to 8 mph by 1100.
CWR.................0 percent. 
Mixing Height.......1500 ft AGL until 0900. 14000 ft AGL after 
                    1000. 
Transport Winds.....Northeast 5 mph until 1200, then northwest. 
Clearing Index......Less than 500 until 1100. 1050 after 1200. 

.TONIGHT...
Sky/weather.........Partly cloudy (30-40%). 
Chc of lightning....0 percent. 
Min temperature.....52-62 F. 
   24 hr trend......3 degrees warmer. 
Max humidity........31-41%. 
   24 hr trend......8% wetter. 
20-foot winds.......Upslope/upvalley 4 to 8 mph becoming 
                    downslope/downvalley 3 to 6 mph by sunset.
CWR.................0 percent. 
Mixing Height.......13000 ft AGL until 2000, then 1500 ft AGL. 
Transport Winds.....North 5 to 10 mph. 
Clearing Index......1050 until 2000, then less than 500. 

.WEDNESDAY...
Sky/weather.........Mostly sunny (20-30%) until 1200, then partly 
                    cloudy (30-40%). Isolated showers and 
                    thunderstorms after 1200. 
Chc of lightning....10 percent. 
Max temperature.....83-93 F near 5000 feet 
                    71-81 F near 7000 feet. 
   24 hr trend......Unchanged. 
Min humidity........9-14%. 
   24 hr trend......3% wetter. 
20-foot winds.......Downslope/downvalley 3 to 6 mph becoming 
                    upslope/upvalley 4 to 8 mph by 1100.
CWR.................10 percent. 
Mixing Height.......2000 ft AGL until 1000, then 13000 ft AGL. 
Transport Winds.....Northeast 5 mph until 1200, then west. 
Clearing Index......Less than 500 until 1100. 1050 after 1200. 

.FORECAST FOR DAY 3 THROUGH 7...
.THURSDAY...Partly cloudy. Isolated showers and thunderstorms .
Lows 54-64. Highs 84-94. Winds less than 15 mph. 
.FRIDAY...Mostly clear. Lows 56-66. Highs 88-98. Winds less than
15 mph. 
.SATURDAY...Clear. Lows 58-68. Highs 90-100. Winds less than
15 mph. 
.SUNDAY...Mostly clear. Lows 59-69. Highs 90-100. 
.MONDAY...Not as warm. Partly cloudy. Scattered showers and
isolated thunderstorms near 5000 feet and scattered showers and
thunderstorms near 7000 feet. Lows 59-69. Highs 78-88.