253  
FNUS76 KMTR 261154  
FWSMTR  
 
SPOT FORECAST FOR SON TRAINING BURN...SONOMA VALLEY FIRE DISTRICT  
NATIONAL WEATHER SERVICE SAN FRANCISCO CA  
454 AM PDT FRI JUN 26 2026  
 
FORECAST IS BASED ON FORECAST START TIME OF 0700 PDT ON JUNE 26.  
IF CONDITIONS BECOME UNREPRESENTATIVE, CONTACT THE NATIONAL WEATHER  
SERVICE.  
   
DISCUSSION
 
SEASONALLY COOL AND GUSTY CONDITIONS WILL PREVAIL  
AT THE PROJECT SITE FOR THE NEXT TWO DAYS, WITH NORTHWEST WINDS  
GUSTING UP TO 25 MPH DURING THE AFTERNOON AND EVENING HOURS. A  
DEEP MARINE LAYER WILL RESULT IN EXCELLENT OVERNIGHT HUMIDITY  
RECOVERIES, GOOD DAYTIME RETENTION, AND CLOUDY CONDITIONS POSSIBLE  
OVERNIGHT INTO THE MORNING. A WARMING AND DRYING TREND WILL BEGIN  
EARLY NEXT WEEK.  
   
REST OF TODAY
 
 
SKY/WEATHER.........SUNNY.  
MAX TEMPERATURE.....75-80.  
MIN HUMIDITY........59-64 PERCENT.  
SURFACE WINDS (MPH).NORTHWEST WINDS 10 TO 15 MPH WITH GUSTS TO  
AROUND 25 MPH.  
CHANCE OF PCPN......0 PERCENT.  
MIXING HEIGHT.......3300 FT AGL.  
TRANSPORT WINDS.....WEST AROUND 17 MPH.  
MARINE LAYER........2000FT.  
   
TONIGHT
 
 
SKY/WEATHER.........MOSTLY CLEAR THEN BECOMING MOSTLY CLOUDY.  
MIN TEMPERATURE.....52-56.  
MAX HUMIDITY........87-91 PERCENT.  
SURFACE WINDS (MPH).NORTHWEST WINDS 8 TO 13 MPH WITH GUSTS TO  
AROUND 20 MPH IN THE EVENING, THEN 5 TO 10 MPH  
OVERNIGHT.  
CHANCE OF PCPN......0 PERCENT.  
MIXING HEIGHT.......800 FT AGL.  
TRANSPORT WINDS.....WEST AROUND 14 MPH.  
MARINE LAYER........2500FT.  
   
SATURDAY
 
 
SKY/WEATHER.........PARTLY SUNNY THEN BECOMING SUNNY.  
MAX TEMPERATURE.....75-80.  
MIN HUMIDITY........35-39 PERCENT.  
SURFACE WINDS (MPH).WEST WINDS 6 TO 12 MPH WITH GUSTS TO AROUND 22  
MPH.  
CHANCE OF PCPN......0 PERCENT.  
MIXING HEIGHT.......4700 FT AGL.  
TRANSPORT WINDS.....WEST AROUND 13 MPH.  
MARINE LAYER........2500FT.  
 

 
FORECASTER...D_HOANG  
REQUESTED BY...BC SEAN LACY  
TYPE OF REQUEST...OTHER  
.TAG 2616246.0/MTR  
.DELDT 06/26/26  
.FORMATTERVERSION 2.0.0  
.EMAIL SEANL@SONOMAVALLEYFIRE.ORG  
 
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