285
FNUS76 KPDT 051658
FWSPDT
SPOT FORECAST FOR FLANK 4 RX...USFS
NATIONAL WEATHER SERVICE PENDLETON OR
958 AM PDT SUN APR 5 2026
FORECAST IS BASED ON IGNITION TIME OF 1000 PDT ON APRIL 06.
***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
DRY CONDITIONS COUPLED WITH BREEZY CONDITIONS WILL
PERSIST THROUGH THE FORECAST PERIOD. WIND GUSTS UP TO 15 TO 25
MPH WILL BE THE MAIN WEATHER DETERMENT, WITH THE STRONGEST WIND
GUSTS REACHING 30 MPH BY LATE TUESDAY MORNING/EARLY AFTERNOON.
OTHERWISE, EXPECT MINIMUM RH'S IN THE UPPER TEENS TO MID 20S,
WITH OVERNIGHT RECOVERIES PROVIDING GOOD RELIEF IN THE MID TO
UPPER 60S.
MONDAY
SKY/WEATHER.........MOSTLY SUNNY (40-50 PERCENT).
CWR.................0 PERCENT.
CHANCE OF LIGHTNING.8 PERCENT.
MAX TEMPERATURE.....69-74.
MIN HUMIDITY........19-24 PERCENT.
WIND (20 FT)........LIGHT WINDS BECOMING NORTH AT 5 TO 10 MPH BY
11 AM WITH GUSTS UP TO 20 MPH.
RIDGETOP WIND.......LIGHT WINDS BECOMING NORTH AT 10 TO 15 MPH BY
11 AM WITH GUSTS UP TO 25 MPH.
MIXING HEIGHT.......8000 FT AGL.
TRANSPORT WINDS.....WEST 10 TO 15 MPH.
VENTILATION INDEX...FAIR (490).
TIME (PDT) 10 AM NOON 2 PM 4 PM 6 PM 8 PM
CHC OF LTNG (%).0 0 10 10 0 0
TEMP............57 64 66 66 63 53
RH..............39 28 24 24 30 46
20 FT WIND......N 3 N 5 N 7 NW 7 NW 8 NW 7
20 FT WIND GUST.4 10 15 14 16 12
MONDAY NIGHT
SKY/WEATHER.........PARTLY CLOUDY (30-40 PERCENT).
CWR.................0 PERCENT.
CHANCE OF LIGHTNING.2 PERCENT.
MIN TEMPERATURE.....37-42.
MAX HUMIDITY........63-68 PERCENT.
WIND (20 FT)........NORTHWEST WINDS 5 TO 10 MPH WITH GUSTS UP TO
20 MPH SHIFTING TO THE SOUTHWEST AT 5 TO 10 MPH
BY 11 PM.
RIDGETOP WIND.......NORTHWEST WINDS 10 TO 15 MPH WITH GUSTS UP TO
20 MPH SHIFTING TO THE SOUTHWEST AT 10 TO 15 MPH
BY 11 PM.
MIXING HEIGHT.......500 FT AGL.
TRANSPORT WINDS.....NORTHWEST 10 TO 15 MPH SHIFTING TO THE WEST 10
TO 17 MPH LATE IN THE EVENING.
VENTILATION INDEX...FAIR (310) DECREASING TO POOR (60) OVERNIGHT.
TUESDAY
SKY/WEATHER.........MOSTLY SUNNY (30-40 PERCENT).
CWR.................0 PERCENT.
CHANCE OF LIGHTNING.0 PERCENT.
MAX TEMPERATURE.....60-65.
MIN HUMIDITY........20-25 PERCENT.
WIND (20 FT)........SOUTHWEST WINDS 5 TO 10 MPH WITH GUSTS TO
AROUND 25 MPH SHIFTING TO THE AT WEST 9 TO
14 MPH WITH GUSTS UP TO 30 MPH BY 11 AM.
RIDGETOP WIND.......SOUTHWEST WINDS 10 TO 15 MPH WITH GUSTS TO
AROUND 30 MPH SHIFTING TO THE AT WEST 14 TO
19 MPH WITH GUSTS UP TO 35 MPH BY 11 AM.
MIXING HEIGHT.......4900 FT AGL.
TRANSPORT WINDS.....WEST 17 TO 22 MPH INCREASING TO 26 TO 31 MPH
LATE IN THE MORNING.
VENTILATION INDEX...POOR (120) INCREASING TO EXCELLENT (970) IN THE
AFTERNOON.
FORECASTER...DAY
REQUESTED BY...DAVID MIRANDA
TYPE OF REQUEST...PRESCRIBED
.TAG 2609014.0/PDT
.DELDT 04/05/26
.FORMATTERVERSION 2.0.0
.EMAIL CHRISTOPHER.DUKE@USDA.GOV,DAVID.MIRANDA2@USDA.GOV
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