318
FNUS76 KPDT 081222
FWSPDT
SPOT FORECAST FOR DEER 123 C...USFS
NATIONAL WEATHER SERVICE PENDLETON OR
522 AM PDT WED OCT 8 2025
FORECAST IS BASED ON IGNITION TIME OF 0800 MDT ON OCTOBER 08.
***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
WARM, DRY (LOW RH AND NO PRECIPITATION) CONDITIONS
WITH GUSTY SOUTH TO SOUTHEAST WINDS IN THE LATE MORNING AND
AFTERNOON HOURS ARE FORECAST THROUGH THURSDAY. OVERNIGHT, EXCELLENT
RH RECOVERY AND PREDOMINANTLY LIGHT DRAINAGE WINDS ARE ANTICIPATED.
REST OF TODAY
SKY/WEATHER.........MOSTLY SUNNY (5-15 PERCENT).
CWR.................0 PERCENT.
CHANCE OF LIGHTNING.1 PERCENT.
MAX TEMPERATURE.....65-68.
MIN HUMIDITY........20-25 PERCENT.
WIND (20 FT)........DRAINAGE WINDS 1-4 MPH EARLY MORNING, BECOMING
SOUTHEAST 6-10 MPH WITH GUSTS OF 15-20 MPH BY LATE
MORNING.
RIDGETOP WIND.......DRAINAGE WINDS 1-4 MPH EARLY MORNING, BECOMING
SOUTHEAST 6-10 MPH WITH GUSTS OF 15-20 MPH BY LATE
MORNING.
MIXING HEIGHT.......INCREASING TO 6500-7000 FT AGL BY EARLY AFTERNOON.
TRANSPORT WINDS.....SOUTH 6-10 MPH INCREASING TO 15-20 MPH BY AFTERNOON.
VENTILATION INDEX...POOR (10) INCREASING TO EXCELLENT (1000) IN THE
AFTERNOON.
TIME (MDT) 9 AM 11 AM 1 PM 3 PM 5 PM 7 PM
CHC OF LTNG (%).0 0 0 0 0 0
TEMP............34 51 63 65 64 61
RH..............72 44 27 25 27 33
20 FT WIND......NW 3 SE 6 S 8 S 8 SE 8 SE 6
20 FT WIND GUST. 12 18 20 14 10
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY (20-30 PERCENT).
CWR.................0 PERCENT.
CHANCE OF LIGHTNING.1 PERCENT.
MIN TEMPERATURE.....33-36.
MAX HUMIDITY........70-75 PERCENT.
WIND (20 FT)........SOUTHEAST WINDS 4-7 MPH IN THE EVENING, BECOMING
DRAINAGE WINDS 2-5 MPH OVERNIGHT.
RIDGETOP WIND.......SOUTHEAST WINDS 4-7 MPH IN THE EVENING, BECOMING
DRAINAGE WINDS 2-5 MPH OVERNIGHT.
MIXING HEIGHT.......DECREASING TO NEAR SURFACE OVERNIGHT.
TRANSPORT WINDS.....SOUTHEAST 5-8 MPH.
VENTILATION INDEX...DECREASING TO POOR (20) OVERNIGHT.
THURSDAY
SKY/WEATHER.........MOSTLY SUNNY (20-30 PERCENT).
CWR.................0 PERCENT.
CHANCE OF LIGHTNING.0 PERCENT.
MAX TEMPERATURE.....68-71.
MIN HUMIDITY........18-23 PERCENT.
WIND (20 FT)........DRAINAGE WINDS 1-4 MPH EARLY MORNING, BECOMING
SOUTHEAST 5-9 MPH WITH GUSTS OF 15-20 MPH BY LATE
MORNING.
RIDGETOP WIND.......DRAINAGE WINDS 1-4 MPH EARLY MORNING, BECOMING
SOUTHEAST 5-9 MPH WITH GUSTS OF 15-20 MPH BY LATE
MORNING.
MIXING HEIGHT.......INCREASING TO 5800-6300 FT AGL BY EARLY AFTERNOON.
TRANSPORT WINDS.....SOUTH 6-10 MPH INCREASING TO 15-20 MPH BY AFTERNOON.
VENTILATION INDEX...POOR (20) INCREASING TO EXCELLENT (1000) IN THE
AFTERNOON.
FORECASTER...PLUNKETT
REQUESTED BY...KIRA SANTULLI
TYPE OF REQUEST...PRESCRIBED
.TAG 2523117.2/PDT
.DELDT 10/08/25
.FORMATTERVERSION 2.0.0
.EMAIL KIRA.SANTULLI@USDA.GOV,BRETT.JOHNSON@USDA.GOV
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