074  
FNUS76 KOTX 130449  
FWSOTX  
 
SPOT FORECAST FOR WHITE RIVER...USFS  
NATIONAL WEATHER SERVICE SPOKANE WA  
949 PM PDT FRI AUG 12 2022  
 
FORECAST IS BASED ON FORECAST START TIME OF 2200 PDT ON AUGUST 12.  
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER  
SERVICE.  
   
DISCUSSION
 
 
A COLD FRONTAL PASSAGE THIS EVENING WILL BRING COOLER TEMPERATURES  
AND HIGHER RELATIVE HUMIDITY VALUES OVER THE FIRE TONIGHT AND  
TOMORROW. A DRYING AND WARMING TREND IS EXPECTED SUNDAY INTO  
EARLY NEXT WEEK AS AN UPPER LEVEL RIDGE BUILDS OVER THE  
NORTHWEST. WINDS WILL BECOME LIGHTER AND MORE TERRAIN DRIVEN  
SUNDAY INTO EARLY NEXT WEEK.  
 
   
REST OF TONIGHT
 
 
SKY/WEATHER.........MOSTLY CLEAR.  
CWR.................0 PERCENT.  
LAL.................1.  
MIN TEMPERATURE.....53.  
MAX HUMIDITY........75 TO 80 PERCENT.  
WIND (20 FT)........NORTHWEST WINDS 5 TO 10 MPH.  
MIXING HEIGHT.......NEAR THE SURFACE.  
TRANSPORT WINDS.....WEST AROUND 11 MPH.  
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED  
FIRE GROWTH.  
   
SATURDAY
 
 
SKY/WEATHER.........SUNNY.  
CWR.................0 PERCENT.  
LAL.................1.  
MAX TEMPERATURE.....71.  
MIN HUMIDITY........40-45 PERCENT.  
WIND (20 FT)........NORTHWEST WINDS 5 TO 10 MPH.  
MIXING HEIGHT.......NEAR THE SURFACE IN THE MORNING INCREASING TO 4500  
FT AGL IN THE AFTERNOON.  
TRANSPORT WINDS.....WEST AROUND 14 MPH.  
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED  
FIRE GROWTH.  
   
SATURDAY NIGHT
 
 
SKY/WEATHER.........MOSTLY CLEAR.  
CWR.................0 PERCENT.  
LAL.................1.  
MIN TEMPERATURE.....51.  
MAX HUMIDITY........60-65 PERCENT.  
WIND (20 FT)........NORTHWEST WINDS 4 TO 8 MPH.  
MIXING HEIGHT.......3000 FT AGL IN THE EVENING DECREASING TO NEAR  
THE SURFACE OVERNIGHT.  
TRANSPORT WINDS.....WEST AROUND 8 MPH.  
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
SUNDAY
 
 
SKY/WEATHER.........SUNNY.  
CWR.................0 PERCENT.  
LAL.................1.  
MAX TEMPERATURE.....AROUND 78.  
MIN HUMIDITY........35 PERCENT.  
WIND (20 FT)........WEST WINDS 3 TO 5 MPH.  
MIXING HEIGHT.......1000 FT AGL IN THE MORNING INCREASING TO 6000  
FT AGL IN THE AFTERNOON.  
TRANSPORT WINDS.....WEST AROUND 7 MPH.  
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
 

 
FORECASTER...VT  
REQUESTED BY...CRAWFORD CUNNINGHAM  
TYPE OF REQUEST...WILDFIRE  
.TAG 2216639.0/OTX  
.DELDT 08/12/22  
.FORMATTERVERSION 1.0.26  
.EMAIL WACWC@FIRENET.GOV  
 
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