122
FNUS76 KPDT 041239
FWSPDT
SPOT FORECAST FOR SAFR PILES...USFS
NATIONAL WEATHER SERVICE PENDLETON OR
439 AM PST THU DEC 4 2025
FORECAST IS BASED ON IGNITION TIME OF 0800 PST ON DECEMBER 05.
***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 THE
TRANSPORT WIND MULTIPLIED BY THE MIXING
HEIGHT IN 100'S OF FEET. INDEX CATEGORIES
ARE A GENERALIZED INDICATOR ONLY.***
IF YOU HAVE QUESTIONS OR CONCERNS WITH THIS FORECAST, PLEASE
CONTACT OUR OFFICE AT (541) 276-8134.
DISCUSSION
UNSETTLED WEATHER WITH PERIODS OF RAIN WILL
PREVAIL THROUGH THE PERIOD, WITH THE HIGHEST CHANCES OF
WETTING RAINS ON FRIDAY. WINDS WILL BE BREEZY THROUGHOUT
THE FORECAST PERIOD WITH THE STRONGEST WINDS DEVELOPING
THROUGH THE LATER AFTERNOON AND EARLY EVENING FRIDAY.
RECOVERIES WILL BE EXCELLENT OVERNIGHT AND MIN RH WILL
REMAIN MOIST IN THE LOW TO MID 80S THANKS TO THE UPCOMING
WET SYSTEM.
FRIDAY
SKY/WEATHER.........CLOUDY (90-100 PERCENT). RAIN.
CWR.................94 PERCENT.
CHANCE OF LIGHTNING.4 PERCENT.
MAX TEMPERATURE.....49-52.
MIN HUMIDITY........81-86 PERCENT.
WIND (20 FT)........WEST WINDS 5 TO 10 MPH. GUSTS UP TO 25
TO 35 MPH BY 11 AM.
RIDGETOP WIND.......WEST WINDS 10 TO 15 MPH. GUSTS UP TO 30
TO 40 MPH BY 11 AM.
MIXING HEIGHT.......2300 FT AGL.
TRANSPORT WINDS.....WEST AROUND 38 MPH.
VENTILATION INDEX...FAIR TO EXCELLENT (270-740).
FRIDAY NIGHT
SKY/WEATHER.........MOSTLY CLOUDY (50-60 PERCENT). RAIN IN THE
EVENING THROUGH THE OVERNIGHT.
CWR.................16 PERCENT.
CHANCE OF LIGHTNING.1 PERCENT.
MIN TEMPERATURE.....33-38.
MAX HUMIDITY........87-92 PERCENT.
WIND (20 FT)........WEST WINDS 10 TO 20 MPH. GUSTS UP TO 30 TO 35
MPH.
RIDGETOP WIND.......WEST WINDS 15 TO 25 MPH. GUSTS UP TO 40 TO 45
MPH.
MIXING HEIGHT.......1300 FT AGL.
TRANSPORT WINDS.....WEST AROUND 37 MPH.
VENTILATION INDEX...GOOD (600) DECREASING TO FAIR TO GOOD
(400-520) OVERNIGHT.
SATURDAY
SKY/WEATHER.........PARTLY SUNNY (60-70 PERCENT). RAIN THROUGHOUT
THE DAY.
CWR.................16 PERCENT.
CHANCE OF LIGHTNING.1 PERCENT.
MAX TEMPERATURE.....40-45.
MIN HUMIDITY........80-85 PERCENT.
WIND (20 FT)........WEST WINDS 9 TO 14 MPH. GUSTS UP TO 25 MPH IN
THE AFTERNOON.
RIDGETOP WIND.......WEST WINDS 15 TO 20 MPH. GUSTS UP TO 35 MPH IN
THE AFTERNOON.
MIXING HEIGHT.......2600 FT AGL.
TRANSPORT WINDS.....WEST AROUND 23 MPH.
VENTILATION INDEX...FAIR (300)
FORECASTER...DAY
REQUESTED BY...KIEL WOOD
TYPE OF REQUEST...PRESCRIBED
.TAG 2526986.0/PDT
.DELDT 12/04/25
.FORMATTERVERSION 2.0.0
.EMAIL KIEL.WOOD@USDA.GOV
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