468  
FNUS75 KREV 030403 CCA  
FWSREV  
 
SPOT FORECAST FOR CASA DIABLO RX...USFS  
NATIONAL WEATHER SERVICE RENO NV  
902 PM PDT TUE JUN 2 2026  
 
FORECAST IS BASED ON IGNITION TIME OF 0900 PDT ON JUNE 03.  
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL  
WEATHER SERVICE IN RENO.  
   
DISCUSSION  
 
* INCREASED WESTERLY BREEZES GUSTING UP TO AROUND 15-20 MPH MAY  
BRING A FEW HOURS OF ELEVATED FIRE WEATHER CONDITIONS ON  
WEDNESDAY AFTERNOON. NO STORM CELLS OR HIGH WIND EVENTS ARE  
ANTICIPATED  
 
* DRY CONDITIONS AND SLIGHTLY WARMER TEMPERATURES ARE FORECAST  
WITH AFTERNOON ZEPHYRS GUSTING UP TO AROUND 15 MPH ON THURSDAY.  
 
* WINDS INCREASE AGAIN ON FRIDAY AND THEN PEAK ON SATURDAY,  
ALLOWING FOR ADDITIONAL FIRE WEATHER CONCERNS ON BOTH DAYS.  
   
WEDNESDAY  
 
SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING SUNNY.  
TEMPERATURE.........62-66 AT IGNITION...MAX 80-81.  
RH..................30-35% AT IGNITION...MIN 15-20%.  
20-FOOT WINDS.......WINDS NORTHEAST AT 5 MPH AT  
IGNITION...OTHERWISE UPSLOPE 3-7 MPH BECOMING  
WEST 7-10 MPH GUSTING UP TO AROUND 15-20 MPH  
LATE IN THE MORNING.  
CHC WETTING RAIN....0%.  
CHANCE OF THUNDER...0%.  
MIXING HEIGHT.......6500-7500 FT AGL.  
TRANSPORT WINDS.....LIGHT WINDS BECOMING WEST AROUND 10 MPH IN THE  
AFTERNOON.  
VENTILATION.........FAIR TO VERY GOOD.  
   
WEDNESDAY NIGHT  
 
SKY/WEATHER.........CLEAR.  
TEMPERATURE.........MIN 47-49.  
RH..................MAX 45-50%.  
20-FOOT WINDS.......WEST WINDS 7-10 MPH IN THE EVENING GUSTING UP TO  
AROUND 15 MPH BECOMING LIGHT AFTER MIDNIGHT.  
CHC WETTING RAIN....0%.  
CHANCE OF THUNDER...0%.  
MIXING HEIGHT.......600-700 FT AGL.  
TRANSPORT WINDS.....WEST AROUND 15 MPH IN THE EVENING BECOMING  
LIGHT.  
VENTILATION.........VERY GOOD TO POOR.  
   
THURSDAY  
 
SKY/WEATHER.........SUNNY.  
TEMPERATURE.........MAX 83-84.  
RH..................MIN 13-18%.  
20-FOOT WINDS.......UPSLOPE 3-7 MPH THEN BECOMING WEST 6-8 MPH GUSTING  
UP TO AROUND 15 MPH LATE IN THE AFTERNOON.  
CHC WETTING RAIN....0%.  
CHANCE OF THUNDER...0%.  
MIXING HEIGHT.......200-500 FT AGL THEN 7200 FT AGL IN THE AFTERNOON.  
TRANSPORT WINDS.....LIGHT WINDS BECOMING WEST AROUND 10 MPH IN THE  
AFTERNOON.  
VENTILATION.........POOR TO VERY GOOD.  
 
 
FORECASTER...CHYBA  
REQUESTED BY...TRAVIS WHITE  
TYPE OF REQUEST...PRESCRIBED  
.TAG 2614664.3/REV  
.DELDT 06/03/26  
.FORMATTERVERSION 2.0.0  
.EMAIL ANDREW.CLARK2@USDA.GOV,TRAVIS.WHITE@USDA.GOV,BRANT.MACHADO@USDA.GOV,HEIDI.ESH@USDA.GOV  
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