755  
FNUS76 KPDT 101215  
FWSPDT  
 
SPOT FORECAST FOR JACK FIRE...USFS  
NATIONAL WEATHER SERVICE PENDLETON OR  
515 AM PDT WED AUG 10 2022  
 
FORECAST IS BASED ON FORECAST START TIME OF 0900 PDT ON AUGUST 10.  
***THUNDERSTORMS IMPLY GUSTY AND ERRATIC WINDS***  
***WINDS ARE 20 FOOT 10-MINUTE AVERAGES***  
***CWR-CHANCE OF WETTING RAIN 0.10 OR GREATER***  
 
IF YOU HAVE QUESTIONS OR CONCERNS WITH THIS FORECAST, PLEASE  
CONTACT OUR OFFICE AT (541) 276-8134.  
   
DISCUSSION
 
OVERALL EXPECT DRY CONDITIONS AROUND THE BURN AREA  
BUT WITH SOME INCREASING WIND IN THE AFTERNOON. WINDS WILL START  
LIGHT THEN INCREASING IN THE AFTERNOON AND PERSIST THROUGH THE  
EVENING BEFORE DECREASING AFTER SUNSET.  
   
REST OF TODAY
 
 
SKY/WEATHER.........SUNNY (5-15 PERCENT).  
CWR.................0 PERCENT.  
LAL.................1.  
MAX TEMPERATURE.....71-74.  
MIN HUMIDITY........35-45 PERCENT.  
WIND (20 FT)........WEST WINDS 3 TO 7 MPH BECOMING 10 TO 15  
MPH IN THE AFTERNOON.  
RIDGETOP WIND.......WEST 10 TO 20 MPH.  
MIXING HEIGHT.......4500 FT AGL.  
TRANSPORT WINDS.....WEST AROUND 15 MPH.  
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
TONIGHT
 
 
SKY/WEATHER.........MOSTLY CLEAR (10-20 PERCENT).  
CWR.................0 PERCENT.  
LAL.................1.  
MIN TEMPERATURE.....AROUND 50.  
MAX HUMIDITY........76-81 PERCENT.  
WIND (20 FT)........WEST WINDS 10 TO 15 MPH DECREASING TO 3 TO 6  
MPH AFTER SUNSET.  
RIDGETOP WIND.......WEST 10 TO 20 MPH DECREASING TO AROUND 10  
MPH OVERNIGHT.  
MIXING HEIGHT.......4500 FT AGL DECREASING TO NEAR SURFACE AFTER  
SUNSET.  
TRANSPORT WINDS.....WEST AROUND 10 MPH.  
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED  
FIRE GROWTH.  
   
THURSDAY
 
 
SKY/WEATHER.........SUNNY (0-10 PERCENT).  
CWR.................0 PERCENT.  
LAL.................1.  
MAX TEMPERATURE.....74-77.  
MIN HUMIDITY........30-35 PERCENT.  
WIND (20 FT)........SOUTHWEST WINDS 3 TO 6 MPH BECOMING WEST  
8 TO 12 MPH IN THE AFTERNOON.  
RIDGETOP WIND.......SOUTHWEST 5 TO 10 MPH BECOMING WEST 10 TO 15  
MPH IN THE AFTERNOON  
MIXING HEIGHT.......7500 FT AGL EARLY IN THE MORNING.  
TRANSPORT WINDS.....SOUTHWEST TO WEST AROUND 10 MPH.  
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED  
FIRE GROWTH.  
 

 
FORECASTER...SOLOMON  
REQUESTED BY...ANDREW MYHRA  
TYPE OF REQUEST...WILDFIRE  
.TAG 2216487.0/PDT  
.DELDT 08/10/22  
.FORMATTERVERSION 2.0.0  
.EMAIL ANDREW.MYHRA@USDA.GOV  
 
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