218
FNUS76 KPDT 061620
FWSPDT
SPOT FORECAST FOR SUN FOREST 2 RX...USFS
NATIONAL WEATHER SERVICE PENDLETON OR
920 AM PDT MON APR 6 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
THE REGION WILL BE BETWEEN TWO UPPER WEATHER SYSTEMS
DURING THE MIDWEEK, WHICH WILL RESULT IN MOSTLY LIGHT WINDS EACH
DAY. DRIER AIRMASS IN WILL STICK AROUND WEDNESDAY, RESULTING IN RHS
IN THE UPPER TEENS, BUT WILL IMPROVE TO THE MID 20S THURSDAY. OVERNIGHT
RECOVERY WILL BE EXCELLENT. THERE WILL BE A SLIGHT CHANCE (~15%) OF
ISOLATED THUNDERSTORMS ON THURSDAY AS AN UPPER LOW TO THE SOUTH CLIPS
THE FIRE SITE.
WEDNESDAY
SKY/WEATHER.........MOSTLY SUNNY (40-50 PERCENT).
CWR.................0 PERCENT.
CHANCE OF LIGHTNING.2 PERCENT.
MAX TEMPERATURE.....AROUND 70.
MIN HUMIDITY........18-23 PERCENT.
WIND (20 FT)........LIGHT DIURNAL WINDS BECOMING WEST 5 TO 10 MPH
AROUND 11AM.
MIXING HEIGHT.......7400 FT AGL.
TRANSPORT WINDS.....WEST 6 TO 15 MPH.
VENTILATION INDEX...POOR (30) INCREASING TO GOOD (630) 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............42 57 65 68 66 M
RH..............60 32 23 22 25 M
20 FT WIND......W 4 W 7 W 7 W 8 W 10 W 10
20 FT WIND GUST.5 10 13 13
WEDNESDAY NIGHT
SKY/WEATHER.........PARTLY CLOUDY (25-35 PERCENT).
CWR.................0 PERCENT.
CHANCE OF LIGHTNING.0 PERCENT.
MIN TEMPERATURE.....33-36.
MAX HUMIDITY........85-90 PERCENT.
WIND (20 FT)........WEST WINDS 5 TO 10 MPH IN THE EVENING
BECOMING LIGHT AROUND 9PM.
MIXING HEIGHT.......500 FT AGL.
TRANSPORT WINDS.....NORTHWEST 8 TO 15 MPH IN THE EVENING AND
OVERNIGHT BECOMING LIGHT, THEN BECOMING
SOUTHWEST AROUND 5 MPH EARLY IN THE MORNING.
VENTILATION INDEX...FAIR (470) DECREASING TO POOR (30) OVERNIGHT.
THURSDAY
SKY/WEATHER.........SUNNY (20-30 PERCENT) THEN BECOMING PARTLY
SUNNY (60-70 PERCENT). CHANCE OF RAIN SHOWERS
AND SLIGHT CHANCE OF THUNDERSTORMS LATE IN THE
MORNING. CHANCE OF RAIN LATE IN THE AFTERNOON.
CWR.................0 PERCENT INCREASING TO 12 PERCENT LATE IN THE
AFTERNOON.
CHANCE OF LIGHTNING.16 PERCENT.
MAX TEMPERATURE.....69-72.
MIN HUMIDITY........26-31 PERCENT.
WIND (20 FT)........LIGHT WINDS BECOMING NORTHEAST 4 TO 7 MPH AROUND 1PM,
THEN SHIFTING TO THE NORTH AROUND 5PM. ERRATIC WINDS
FROM ISOLATED THUNDERSTORMS WILL BE POSSIBLE IN THE
AFTERNOON.
MIXING HEIGHT.......7300 FT AGL.
TRANSPORT WINDS.....SOUTHWEST AROUND 5 MPH EARLY IN THE MORNING
BECOMING LIGHT, THEN BECOMING SOUTH AROUND 7
MPH LATE IN THE MORNING.
VENTILATION INDEX...POOR (30) INCREASING TO FAIR (340) IN THE
AFTERNOON.
FORECASTER...LAWHORN
REQUESTED BY...PATRICK ODELL
TYPE OF REQUEST...PRESCRIBED
.TAG 2609145.0/PDT
.DELDT 04/06/26
.FORMATTERVERSION 2.0.0
.EMAIL MAX.LEIDENFROST@USDA.GOV,PATRICK.ODELL@USDA.GOV
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