179  
FNUS75 KGJT 041210  
FWSGJT  
 
SPOT FORECAST FOR COTTONWOOD SOUTH PILES...USFS  
NATIONAL WEATHER SERVICE GRAND JUNCTION CO  
510 AM MST THU DEC 4 2025  
 
FORECAST IS BASED ON IGNITION TIME OF 1000 MST ON DECEMBER 04.  
IF CONDITIONS BECOME UNREPRESENTATIVE, CONTACT THE NATIONAL WEATHER  
SERVICE.  
   
DISCUSSION  
CLOUDS SHOULD BE DECREASING THROUGH THE LATE MORNING  
HOURS WITH PARTLY CLOUDY SKIES THROUGH THE AFTERNOON AND EVENING  
UNTIL CLOUDS THICKEN WITH THE NEXT SYSTEM MOVING THROUGH ON FRIDAY.  
THIS SYSTEM WILL BRING A CHANCE OF SHOWERS TO THE FORECAST FOR  
MUCH OF THE DAY WITH ONLY LIGHT ACCUMULATIONS EXPECTED. WINDS REMAIN  
WESTERLY AND CONDITIONS UNSTABLE ENOUGH TO BRING GOOD TO VERY  
DISPERSAL BY THE AFTERNOON HOURS.  
   
TODAY  
 
SKY/WEATHER.........CLOUDY (90%) BECOMING MOSTLY CLEAR (20-30%)  
BY 1200.  
CWR.................0 PERCENT.  
MAX TEMPERATURE.....NEAR 25.  
MIN HUMIDITY........39-44 PERCENT.  
WIND (20 FT)........WEST WINDS 10 MPH TO 15 MPH .  
SMOKE DISPERSAL.....GOOD BY PEAK HEATING.  
MIXING HEIGHT.......5200 FT AGL BY PEAK HEATING.  
TRANSPORT WINDS.....NORTHWEST 24 MPH.  
   
TONIGHT  
 
SKY/WEATHER.........PARTLY CLOUDY (30-40 PERCENT).  
CWR.................0 PERCENT.  
MIN TEMPERATURE.....3-8.  
MAX HUMIDITY........83-88 PERCENT.  
WIND (20 FT)........WEST WINDS 10 MPH.  
SMOKE DISPERSAL.....POOR (19000-20000 KNOT-FT).  
MIXING HEIGHT.......1900 FT AGL.  
TRANSPORT WINDS.....WEST 12 MPH.  
   
FRIDAY  
 
SKY/WEATHER.........PARTLY SUNNY (55-85 PERCENT). CHANCE OF SNOW  
SHOWERS MID MORNING THROUGH THE AFTERNOON.  
CWR.................10 PERCENT.  
MAX TEMPERATURE.....26-29.  
MIN HUMIDITY........46-51 PERCENT.  
WIND (20 FT)........WEST WINDS 10 MPH TO 15 MPH INCREASING TO  
17 TO 22 MPH AFTER 1300.  
SMOKE DISPERSAL.....VERY GOOD IN THE AFTERNOON.  
MIXING HEIGHT.......5600 FT AGL BY PEAK HEATING.  
TRANSPORT WINDS.....WEST 26 MPH.  
 
 
FORECASTER...DENNIS PHILLIPS  
REQUESTED BY...CARL HANLEY  
TYPE OF REQUEST...PRESCRIBED  
.TAG 2526994.0/GJT  
.DELDT 12/04/25  
.FORMATTERVERSION 2.0.0  
.EMAIL CARL.HANLEY@USDA.GOV  
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