220
FNUS76 KPDT 072015
FWSPDT
SPOT FORECAST FOR FLANK 4 RX...USFS
NATIONAL WEATHER SERVICE PENDLETON OR
115 PM PDT TUE APR 7 2026
FORECAST IS BASED ON IGNITION TIME OF 0900 PDT ON APRIL 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
DRY CONDITIONS WILL PERSIST OVER THE FIRE ARE THROUGH
THURSDAY. WINDS WILL SHIFT MULTIPLE TIME THROUGH THE PERIOD AS WELL
STARTING SE AT 5-7 MPH SHIFTING N AFTER 11 AM AT 5-8 MPH THEN AGAIN
TO THE NW AT 6-8 MPH THEN BECOMING LIGHT OVERNIGHT. THURSDAY WINDS
WILL BEGIN LIGHT AND INCREASE TO 5-7 MPH FROM THE E AFTER 11 AM
THEN TO THE N 5-6 MPH AFTER 2 PM. DAYTIME MINIMUM RHS WILL BE IN THE
UPPER TEENS TO LOW 20% WITH EXCELLENT OVERNIGHT RECOVERIES. THURSDAY
MINIMUM RHS WILL SLIGHTLY INCREASE TO THE LOW TO MID 20% WITH A 10-15%
CHANCE OF ISOLATED THUNDERSTORMS AFTER 11 AM.
WEDNESDAY
SKY/WEATHER.........PARTLY SUNNY (50-60 PERCENT).
CWR.................0 PERCENT.
CHANCE OF LIGHTNING.0 PERCENT.
MAX TEMPERATURE.....66-69.
MIN HUMIDITY........16-21 PERCENT.
WIND (20 FT)........SOUTHEAST WINDS 5 TO 7 MPH SHIFTING TO THE
NORTH 5 TO 8 MPH AFTER 11 AM THEN NORTHWEST
6 TO 8 MPH AFTER 2 PM.
RIDGETOP WIND.......SOUTHEAST WINDS 7 TO 9 MPH SHIFTING TO THE
NORTH 7 TO 9 MPH AFTER 11 AM THEN NORTHWEST
8 TO 10 MPH AFTER 2 PM.
MIXING HEIGHT.......7600 FT AGL.
TRANSPORT WINDS.....WEST 7 TO 13 MPH.
VENTILATION INDEX...POOR (70) INCREASING TO GOOD (600) IN THE
AFTERNOON.
TIME (PDT) 9 AM 11 AM 1 PM 3 PM 5 PM 7 PM
CHC OF LTNG (%).0 0 0 0 0 0
TEMP............46 57 64 64 64 57
RH..............43 27 22 22 24 36
20 FT WIND......SE 5 N 6 N 6 NW 8 N 8 N 8
20 FT WIND GUST.6 11 11 13 13 13
WEDNESDAY NIGHT
SKY/WEATHER.........MOSTLY CLOUDY (55-65 PERCENT) THEN BECOMING
PARTLY CLOUDY (30-40 PERCENT).
CWR.................0 PERCENT.
CHANCE OF LIGHTNING.0 PERCENT.
MIN TEMPERATURE.....AROUND 40.
MAX HUMIDITY........69-74 PERCENT.
WIND (20 FT)........NORTH WINDS 5 TO 8 MPH AFTER 4 PM BECOMING
LIGHT OVERNIGHT.
RIDGETOP WIND.......NORTH WINDS 7 TO 10 MPH AFTER 4 PM BECOMING
LIGHT OVERNIGHT.
MIXING HEIGHT.......600 FT AGL.
TRANSPORT WINDS.....WEST AROUND 12 MPH SHIFTING TO THE NORTHWEST 5
TO 13 MPH EARLY IN THE EVENING.
VENTILATION INDEX...FAIR (360) DECREASING TO POOR (30) OVERNIGHT.
THURSDAY
SKY/WEATHER.........MOSTLY SUNNY (35-45 PERCENT) THEN BECOMING
MOSTLY CLOUDY (70-80 PERCENT). SLIGHT CHANCE OF
RAIN LATE IN THE MORNING. CHANCE OF RAIN LATE
IN THE AFTERNOON.
CWR.................0 PERCENT INCREASING TO 10 PERCENT LATE IN THE
AFTERNOON.
CHANCE OF LIGHTNING.11 PERCENT.
MAX TEMPERATURE.....66-69.
MIN HUMIDITY........26-31 PERCENT.
WIND (20 FT)........LIGHT WINDS BECOMING EAST 5 TO 7 MPH AFTER 11 AM,
THEN SHIFTING TO THE NORTH 5 TO 6 MPH AFTER
2 PM.
RIDGETOP WIND.......LIGHT WINDS BECOMING EAST 7 TO 9 MPH AFTER 11 AM,
THEN SHIFTING TO THE NORTH 7 TO 8 MPH AFTER
2 PM.
MIXING HEIGHT.......6400 FT AGL.
TRANSPORT WINDS.....NORTH AROUND 6 MPH SHIFTING TO THE SOUTHEAST
AROUND 12 MPH LATE IN THE MORNING, THEN
SHIFTING TO THE NORTHEAST LATE IN THE
AFTERNOON.
VENTILATION INDEX...POOR (30) INCREASING TO GOOD (520) IN THE
AFTERNOON.
FORECASTER...BENNESE
REQUESTED BY...NATALIE KUNTZ
TYPE OF REQUEST...PRESCRIBED
.TAG 2609045.2/PDT
.DELDT 04/07/26
.FORMATTERVERSION 2.0.0
.EMAIL NATALIE.KUNTZ@USDA.GOV
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