261  
FNUS76 KPDT 220922  
FWSPDT  
 
SPOT FORECAST FOR COW...USFS  
NATIONAL WEATHER SERVICE PENDLETON OR  
222 AM PDT THU AUG 22 2019  
 
FORECAST IS BASED ON FORECAST START TIME OF 0600 PDT ON AUGUST 22.  
***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
 
AN UPPER LEVEL TROUGH WILL MOVE EAST OF THE AREA  
EARLY THIS MORNING RESULTING IN A DRYING TREND TODAY AND THE NEXT  
FEW DAYS. IT WILL BE COOL TODAY BUT WARMING UP ON FRIDAY WITH LOW  
HUMIDITIES.  
   
TODAY
 
 
SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY SUNNY.  
CWR.................0 PERCENT.  
LAL.................1.  
MAX TEMPERATURE.....68-72.  
MIN HUMIDITY........30-35 PERCENT.  
WIND (20 FT)........NORTHWEST WINDS 7 TO 11 MPH.  
RIDGETOP WIND.......NORTHWEST WINDS 7 TO 12 MPH.  
MIXING HEIGHT.......5500 FT AGL.  
TRANSPORT WINDS.....NORTHWEST AROUND 11 MPH.  
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
TONIGHT
 
 
SKY/WEATHER.........CLEAR.  
CWR.................0 PERCENT.  
LAL.................1.  
MIN TEMPERATURE.....43-48.  
MAX HUMIDITY........60-65 PERCENT.  
WIND (20 FT)........NORTHWEST WINDS 7 TO 11 MPH DECREASING TO  
AROUND 5 MPH AFTER MIDNIGHT.  
RIDGETOP WIND.......NORTH WINDS AROUND 10 MPH DECREASING TO  
5 MPH AFTER MIDNIGHT.  
MIXING HEIGHT.......500 FT AGL.  
TRANSPORT WINDS.....NORTH AROUND 7 MPH.  
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED  
FIRE GROWTH.  
   
FRIDAY
 
 
SKY/WEATHER.........MOSTLY SUNNY.  
CWR.................0 PERCENT.  
LAL.................1.  
MAX TEMPERATURE.....73-78.  
MIN HUMIDITY........19-24 PERCENT.  
WIND (20 FT)........SOUTHWEST WINDS 5 TO 8 MPH.  
RIDGETOP WIND.......WEST WINDS 5 TO 8 MPH.  
MIXING HEIGHT.......5900 FT AGL.  
TRANSPORT WINDS.....SOUTHWEST AROUND 6 MPH.  
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED  
FIRE GROWTH.  
 

 
FORECASTER...VESCIO  
REQUESTED BY...BRIAN BISHOP  
TYPE OF REQUEST...WILDFIRE  
.TAG 1914173.0/PDT  
.DELDT 08/22/19  
.FORMATTERVERSION 1.0.26  
.EMAIL ORJDCC@FIRENET.GOV  
 
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