107  
FNUS76 KSTO 041543  
FWSSTO  
 
SPOT FORECAST FOR MOUNT RX...CAL FIRE  
NATIONAL WEATHER SERVICE SACRAMENTO CA  
843 AM PDT WED JUN 4 2025  
 
FORECAST IS BASED ON IGNITION TIME OF 0800 PDT ON JUNE 05.  
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER  
SERVICE.  
   
DISCUSSION  
 
WARM AND DRY WEATHER IS EXPECTED AT TIME OF IGNITION. LIGHT WINDS  
FROM THE NORTHWEST WILL PERSIST THROUGH MOST OF THE MORNING  
BEFORE SHIFTING TO THE SOUTHWEST BY THE EARLY AFTERNOON. WINDS  
WILL BE BREEZY AT TIMES INTO THE EARLY EVENING HOURS, WITH GUSTS  
UP TO 15 MPH. DAYTIME RELATIVE HUMIDITIES WILL BE IN THE LOW 30S  
WITH HIGH TEMPERATURES IN THE UPPER 80S TO LOW 90S. WARMER AND  
DRIER WEATHER IS THEN EXPECTED FRIDAY AND OVER THE WEEKEND.  
   
THURSDAY  
 
SKY/WEATHER.........SUNNY.  
MAX TEMPERATURE.....89-93.  
MIN HUMIDITY........30-34 PERCENT.  
WIND (20 FT)........  
SLOPE/VALLEY.......NORTHWEST WINDS UP TO 5 MPH SHIFTING TO THE  
SOUTH 5 TO 7 MPH IN THE AFTERNOON.  
RIDGETOP...........WEST AROUND 7 MPH.  
MIXING HEIGHT.......4000 FT AGL.  
TRANSPORT WINDS.....WEST AROUND 7 MPH.  
CWR.................0 PERCENT.  
CHANCE OF THUNDER...0 PERCENT.  
   
THURSDAY NIGHT  
 
SKY/WEATHER.........CLEAR.  
MIN TEMPERATURE.....57-61.  
MAX HUMIDITY........76-80 PERCENT.  
WIND (20 FT)........  
SLOPE/VALLEY.......SOUTHWEST WINDS 5 TO 10 MPH, WITH GUSTS UP  
TO 15 MPH AT TIMES.  
RIDGETOP...........WEST AROUND 9 MPH.  
MIXING HEIGHT.......1000 FT AGL.  
TRANSPORT WINDS.....WEST AROUND 9 MPH.  
CWR.................0 PERCENT.  
CHANCE OF THUNDER...0 PERCENT.  
 
 
FORECASTER...KF  
REQUESTED BY...TREVYN CLOSE  
TYPE OF REQUEST...PRESCRIBED  
.TAG 2515334.0/STO  
.DELDT 06/04/25  
.FORMATTERVERSION 2.0.0  
.EMAIL TREVYN.CLOSE@FIRE.CA.GOV,JOHN.IACOVIELLO@FIRE.CA.GOV  
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