693  
FNUS76 KPDT 260831  
FWSPDT  
 
SPOT FORECAST FOR DMPRC MONITOR...YAKIMA TRAINING CENTER FIRE DEPARTMENT  
NATIONAL WEATHER SERVICE PENDLETON OR  
131 AM PDT WED AUG 26 2026  
 
FORECAST IS BASED ON FORECAST START TIME OF 0700 PDT ON AUGUST 26.  
***THUNDERSTORMS IMPLY GUSTY AND ERRATIC WINDS ***  
***WINDS ARE 20 FOOT 10-MINUTE AVERAGES ***  
***CWR: CHANCE OF WETTING RAIN 0.10 OR GREATER ***  
***VENTILATION INDEX IS DERIVED FROM TRANSPORT WIND  
MULTIPLIED BY THE MIXING HEIGHT IN 100'S OF FT.  
CATEGORIES ARE A GENERALIZED INDICATOR ONLY:  
LOW (< 200), MODERATE (200-500), HIGH (500-700),  
AND VERY HIGH (> 700). ***  
 
IF YOU HAVE QUESTIONS OR CONCERNS WITH THIS FORECAST, PLEASE  
CONTACT OUR OFFICE AT (541) 276-8134.  
   
DISCUSSION  
DRY CONDITIONS ARE EXPECTED THROUGH THURSDAY.  
 
MIN RH VALUES WILL BE 15 TO 20 PERCENT TODAY AND 20 TO 25 PERCENT  
ON THURSDAY, WITH MODERATE TO GOOD OVERNIGHT RECOVERIES.  
 
WINDS WILL BE BREEZY, AND WILL BE NORTHWEST TO START TODAY, BEFORE  
SHIFTING TO THE SOUTHWEST IN THE AFTERNOON. WINDS COULD GUST AS HIGH  
AS 25 MPH.  
 
WINDS WILL BE WEST TO NORTHWEST THIS EVENING AND TONIGHT,  
MAINLY 10 TO 20 MPH, AND OUT OF THE WEST ON THURSDAY ALSO 10 TO 20 MPH.  
 
   
TODAY  
 
SKY/WEATHER.........SUNNY (10-20 PERCENT). PATCHY SMOKE.  
CHANCE OF PCPN......0 PERCENT.  
CHANCE OF LIGHTNING.0 PERCENT.  
MAX TEMPERATURE.....89-92.  
MIN HUMIDITY........15-20 PERCENT.  
SURFACE WINDS (MPH).NORTHWEST WINDS 6 TO 10 MPH SHIFTING TO THE  
SOUTHWEST 10 TO 20 MPH IN THE AFTERNOON.  
GUSTS TO 25 MPH.  
MIXING HEIGHT.......8200 FT AGL.  
TRANSPORT WINDS.....NORTHWEST 6 TO 12 MPH SHIFTING TO THE SOUTHWEST  
7 TO 13 MPH LATE IN THE MORNING, THEN SHIFTING  
TO THE WEST AROUND 17 MPH LATE IN THE  
AFTERNOON.  
 
TIME (PDT) 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM 6PM  
CHC OF LTNG (%).0 0 0 0 0 0 0 0 0 0 0 0  
TEMP............64 67 70 75 79 81 83 87 87 87 88 85  
RH..............55 50 42 35 31 28 25 23 21 19 19 21  
SURFACE WND DIR.NW NW NW W W SW SW SW SW SW SW W  
SURFACE WND SPD.9 9 8 6 6 6 8 10 13 15 18 18  
SURFACE WND GST.10 10 7 9 12 14 16 20 22  
   
TONIGHT  
 
SKY/WEATHER.........PARTLY CLOUDY (35-45 PERCENT).  
CHANCE OF PCPN......0 PERCENT.  
CHANCE OF LIGHTNING.0 PERCENT.  
MIN TEMPERATURE.....60-63.  
MAX HUMIDITY........54-59 PERCENT.  
SURFACE WINDS (MPH).WEST WINDS 10 TO 20 MPH SHIFTING TO THE  
NORTHWEST 10 TO 20 MPH EARLY IN THE EVENING.  
GUSTS TO 25 MPH THIS EVENING.  
MIXING HEIGHT.......500 FT AGL.  
TRANSPORT WINDS.....WEST AROUND 17 MPH SHIFTING TO THE NORTHWEST 13  
TO 18 MPH EARLY IN THE EVENING.  
   
THURSDAY  
 
SKY/WEATHER.........MOSTLY SUNNY (25-35 PERCENT).  
CHANCE OF PCPN......0 PERCENT.  
CHANCE OF LIGHTNING.0 PERCENT.  
MAX TEMPERATURE.....79-82.  
MIN HUMIDITY........20-25 PERCENT.  
SURFACE WINDS (MPH).WEST WINDS 10 TO 21 MPH.  
MIXING HEIGHT.......8100 FT AGL.  
TRANSPORT WINDS.....WEST 13 TO 14 MPH SHIFTING TO THE NORTHWEST  
AROUND 17 MPH.  
 
 
FORECASTER...NIERENBERG  
REQUESTED BY...ASSISTANT CHIEF FOSTER  
TYPE OF REQUEST...OTHER  
.TAG 2620561.0/PDT  
.DELDT 08/26/26  
.FORMATTERVERSION 2.0.0  
.EMAIL SHAYNE.C.FOSTER.CIV@ARMY.MIL  
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