UTZ487-310200-
UTZ487-310200-
Book Cliffs-
346 AM MDT Sat Aug 30 2025

Fire Weather Planning Forecast for Wrn Colorado and Ern Utah
National Weather Service Grand Junction CO
346 AM MDT Sat Aug 30 2025

.DISCUSSION...

Isolated showers and thunderstorms develop on terrain today. A 
few gusty outflows are possible, along with some small hail. 
Critical fire weather conditions are not expected. Flash flooding 
is not expected today and wetting rains will be very localized. 
Temperatures begin to warm today and lower relative humidities 
return to the region Sunday and beyond. Winds remain below 
critical fire thresholds and widespread critical fire weather is 
not expected this week.

...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 (10-20%). Near 8000 feet, 
                    isolated showers after 1200. 
Chc of lightning....0 percent. 
Max temperature.....70-80 F near 5000 feet 
                    62-72 F near 8000 feet. 
   24 hr trend......4 degrees warmer. 
Min humidity........18-28%. 
   24 hr trend......44% drier. 
20-foot winds.......Downslope/downvalley 3 to 6 mph becoming 
                    upslope/upvalley 4 to 8 mph by 1100.
CWR.................0 percent. 
Mixing Height.......2500 ft AGL until 1100, then 9500 ft AGL. 
Transport Winds.....West 5 mph until 1200, then north. 
Clearing Index......Less than 500 until 1100. 1000 after 1300. 

.TONIGHT...
Sky/weather.........Clear (0-10%). 
Chc of lightning....0 percent. 
Min temperature.....50-60 F. 
   24 hr trend......3 degrees warmer. 
Max humidity........47-57%. 
   24 hr trend......43% drier. 
20-foot winds.......Upslope/upvalley 4 to 8 mph becoming 
                    downslope/downvalley 3 to 6 mph by sunset.
CWR.................0 percent. 
Mixing Height.......8000 ft AGL until 2000, then 1000 ft AGL. 
Transport Winds.....Northeast 5 mph until 2400, then southwest. 
Clearing Index......1050 until 1900. Less than 500 after 2000. 

.SUNDAY...
Sky/weather.........Mostly sunny (10-20%). 
Chc of lightning....0 percent. 
Max temperature.....71-81 F near 5000 feet 
                    66-76 F near 8000 feet. 
   24 hr trend......4 degrees warmer. 
Min humidity........12-17%. 
   24 hr trend......9% 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 1000. 8500 ft AGL after 1100. 
Transport Winds.....North 5 mph. 
Clearing Index......Less than 500 until 1100, then 750. 

.FORECAST FOR DAY 3 THROUGH 7...
.LABOR DAY...Clear. Lows 50-60. Highs 78-88. Winds less than
15 mph. 
.TUESDAY...Clear. Lows 52-62. Highs 79-89. Winds less than
15 mph. 
.WEDNESDAY...Mostly clear. Isolated showers and thunderstorms
near 8000 feet. Lows 52-62. Highs 79-89. Winds less than 15 mph.
.THURSDAY...Mostly clear. Isolated showers and thunderstorms .
Lows 52-62. Highs 79-89. 
.FRIDAY...Mostly clear. Isolated showers and thunderstorms. Lows
52-62. Highs 78-88.