573
FNUS76 KPDT 041148
FWSPDT
SPOT FORECAST FOR STARVATION 2A...USFS
NATIONAL WEATHER SERVICE PENDLETON OR
448 AM PDT SUN OCT 4 2026
FORECAST IS BASED ON IGNITION TIME OF 0800 PDT ON OCTOBER 04.
***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
SURFACE WINDS WILL BE LIGHT AND TERRAIN DRIVEN (LESS THAN 5 MPH)
BEFORE BECOMING WESTERLY AT AROUND 5 MPH AROUND 1500. RIDGETOP
WIND COULD REACH 10 MPH. THESE CONDITION WILL SLACKEN AFTER 2100 AND
BECOME DOWN VALLEY AGAIN UNDER 5 MPH. LOOK FOR AFTERNOON MINIMUM
RELATIVE HUMIDITY AROUND 19 PERCENT TO RECOVER OVERNIGHT TO AROUND
53 PERCENT.
REST OF TODAY
SKY/WEATHER.........SUNNY (0-10 PERCENT).
CWR.................0 PERCENT.
CHANCE OF LIGHTNING.0 PERCENT.
MAX TEMPERATURE.....84-87.
MIN HUMIDITY........16-21 PERCENT.
WIND (20 FT)........LIGHT WINDS.
RIDGETOP WIND.......LIGHT WINDS.
MIXING HEIGHT.......4700 FT AGL LATE IN THE MORNING.
TRANSPORT WINDS.....SOUTH 5 TO 7 MPH SHIFTING TO THE NORTHWEST
AROUND 6 MPH LATE IN THE AFTERNOON.
VENTILATION INDEX...LOW (30) INCREASING TO MODERATE (240) IN THE
AFTERNOON.
TIME (PDT) 8 AM 10 AM NOON 2 PM 4 PM 6 PM
CHC OF LTNG (%).0 0 0 0 0 0
TEMP............49 66 78 82 82 77
RH..............57 37 26 21 21 29
20 FT WIND......W 4 N 3 N 3 W 3 NW 3 N 2
20 FT WIND GUST.6 4 5 6 7 5
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY (25-35 PERCENT) THEN BECOMING
MOSTLY CLOUDY (50-60 PERCENT).
CWR.................0 PERCENT.
CHANCE OF LIGHTNING.0 PERCENT.
MIN TEMPERATURE.....51-54.
MAX HUMIDITY........52-57 PERCENT.
WIND (20 FT)........LIGHT WINDS.
RIDGETOP WIND.......LIGHT WINDS.
MIXING HEIGHT.......1100 FT AGL EARLY IN THE EVENING THEN 500 FT
AGL OVERNIGHT.
TRANSPORT WINDS.....WEST AROUND 6 MPH BECOMING 6 TO 7 MPH LATE IN
THE EVENING.
VENTILATION INDEX...LOW (30-40).
MONDAY
SKY/WEATHER.........SUNNY (20-30 PERCENT).
CWR.................0 PERCENT.
CHANCE OF LIGHTNING.0 PERCENT.
MAX TEMPERATURE.....80-83.
MIN HUMIDITY........16-21 PERCENT.
WIND (20 FT)........LIGHT WINDS BECOMING WEST 5 TO 7 MPH LATE IN
THE MORNING, THEN BECOMING LIGHT LATE IN THE
AFTERNOON.
RIDGETOP WIND.......LIGHT WINDS BECOMING WEST 7 TO 9 MPH LATE IN
THE MORNING, THEN BECOMING LIGHT LATE IN THE
AFTERNOON.
MIXING HEIGHT.......4200 FT AGL.
TRANSPORT WINDS.....WEST 6 TO 15 MPH.
VENTILATION INDEX...LOW (40) INCREASING TO MODERATE (430) IN THE
AFTERNOON.
FORECASTER...RUSSELL
REQUESTED BY...ANDREW HAYES
TYPE OF REQUEST...PRESCRIBED
.TAG 2622797.4/PDT
.DELDT 10/04/26
.FORMATTERVERSION 2.0.0
.EMAIL TODD.PEDERSON@USDA.GOV,MARK.MOELLER@USDA.GOV,ANDREW.C.HAYES@USDA.GOV,EAGLECAPWFM@GMAIL.COM
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