983  
FNUS76 KPDT 172305  
FWSPDT  
 
SPOT FORECAST FOR BIRD TRACK 634 B/C...USFS  
NATIONAL WEATHER SERVICE PENDLETON OR  
405 PM PDT THU APR 17 2025  
 
FORECAST IS BASED ON IGNITION TIME OF 1600 PDT ON APRIL 17.  
***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  
DRY CONDITIONS WITH GENERALLY LIGHT WINDS ARE EXPECTED  
THROUGH FRIDAY. MODERATE OVERNIGHT RECOVERIES EXPECTED TONIGHT WITH  
MIN RH VALUES WILL BE 20 TO 25 PERCENT ON FRIDAY.  
   
TONIGHT  
 
SKY/WEATHER.........PARTLY CLOUDY (20-30 PERCENT) THEN BECOMING  
MOSTLY CLEAR (0-10 PERCENT).  
CWR.................0 PERCENT.  
CHANCE OF LIGHTNING.0 PERCENT.  
MIN TEMPERATURE.....30-33.  
MAX HUMIDITY........56-61 PERCENT.  
WIND (20 FT)........NORTH WINDS 5 TO 10 MPH EARLY IN THE EVENING  
BECOMING LIGHT.  
RIDGETOP WIND.......NORTH WINDS 10 TO 15 MPH IN THE EVENING, THEN  
BECOMING NORTHEAST AND DECREASING TO 5 TO 10 MPH.  
MIXING HEIGHT.......600 FT AGL.  
TRANSPORT WINDS.....NORTHWEST 8 TO 17 MPH DECREASING TO 5 TO 6 MPH  
OVERNIGHT.  
   
FRIDAY  
 
SKY/WEATHER.........SUNNY (0-10 PERCENT).  
CWR.................0 PERCENT.  
CHANCE OF LIGHTNING.0 PERCENT.  
MAX TEMPERATURE.....61-64.  
MIN HUMIDITY........19-24 PERCENT.  
WIND (20 FT)........LIGHT WINDS BECOMING NORTH 5 TO 7 MPH LATE IN  
THE AFTERNOON.  
RIDGETOP WIND.......NORTH TO NORTHWEST WINDS 5 TO 10 MPH.  
MIXING HEIGHT.......6400 FT AGL.  
TRANSPORT WINDS.....NORTHWEST AROUND 5 MPH SHIFTING TO THE NORTH 6  
TO 9 MPH EARLY IN THE MORNING.  
 
 
FORECASTER...NIERENBERG  
REQUESTED BY...SCOTT GALLAGHER  
TYPE OF REQUEST...PRESCRIBED  
.TAG 2510519.4/PDT  
.DELDT 04/17/25  
.FORMATTERVERSION 2.0.0  
.EMAIL SCOTT.GALLAGHER@USDA.GOV  
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