762
FNUS76 KPDT 302223
FWSPDT
SPOT FORECAST FOR WALTER SPRINGS RX...USFS
NATIONAL WEATHER SERVICE PENDLETON OR
323 PM PDT THU APR 30 2026
FORECAST IS BASED ON IGNITION TIME OF 1500 PDT ON APRIL 30.
***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 TRANSPORT WIND
MULTIPLIED BY THE MIXING HEIGHT IN 100'S OF FT.
CATEGORIES ARE A GENERALIZED INDICATOR ONLY:
LOW (< 200), MODERATE (200-500), HIGH (500-700),
AND VERY HIGH (> 700). ***
IF YOU HAVE QUESTIONS OR CONCERNS WITH THIS FORECAST, PLEASE
CONTACT OUR OFFICE AT (541) 276-8134.
DISCUSSION
TERRAIN INFLUENCE DOWN WIND OF THE BURN SITE IS
SHIFTING WINDS TO THE EAST, AND THIS IS EXPECTED TO CONTINUE THE
REST OF TODAY AND AGAIN TOMORROW. EYE LEVEL WINDS MAY BE WEAKER
DEPENDING ON DOWN STREAM SHELTERING. A SYSTEM APPROACHING THE
AREA TOMORROW WILL BRING A SLIGHT CHANCE (~15%) OF SHOWERS TO THE
BURN SITE, WITH AN ABOUT 5% CHANCE OF THUNDERSTORMS DEVELOPING
WITH ANY DEVELOPING SHOWERS.
REST OF TODAY
SKY/WEATHER.........PARTLY SUNNY(55-70 PERCENT).
CWR.................0 PERCENT.
CHANCE OF LIGHTNING.0 PERCENT.
MAX TEMPERATURE.....53-56.
MIN HUMIDITY........35-40 PERCENT.
WIND (20 FT)........EAST WINDS 4 TO 8 MPH.
RIDGETOP WIND.......EAST WINDS 4 TO 9 MPH.
MIXING HEIGHT.......4800 FT AGL.
TRANSPORT WINDS.....SOUTHEAST 9 TO 12 MPH.
VENTILATION INDEX...MODERATE (470).
TIME (PDT) 3 PM 5 PM 7 PM 9 PM 11 PM 1 AM
CHC OF LTNG (%).0 0 0 0 0 0
TEMP............54 56 53 46 44 42
RH..............38 38 42 51 53 55
20 FT WIND......E 6 E 6 E 6 S 5 S 5 S 5
20 FT WIND GUST.11 11 11 7 7 7
TONIGHT
SKY/WEATHER.........MOSTLY CLOUDY (50-60 PERCENT) THEN BECOMING
PARTLY CLOUDY (35-45 PERCENT).
CWR.................0 PERCENT.
CHANCE OF LIGHTNING.0 PERCENT.
MIN TEMPERATURE.....40-43.
MAX HUMIDITY........55-60 PERCENT.
WIND (20 FT)........EAST WINDS 4 TO 8 MPH SHIFTING TO THE
SOUTH AROUND 9PM.
RIDGETOP WIND.......EAST WINDS 4 TO 9 MPH SHIFTING TO THE
SOUTH AFTER 9PM.
MIXING HEIGHT.......3100 FT AGL EARLY IN THE EVENING.
TRANSPORT WINDS.....SOUTHEAST 6 TO 9 MPH.
VENTILATION INDEX...LOW (110) DECREASING TO LOW (30) OVERNIGHT.
FRIDAY
SKY/WEATHER.........PARTLY SUNNY (55-65 PERCENT). SLIGHT CHANCE
OF SHOWERS (10-15%) IN THE AFTERNOON.
CWR.................0 PERCENT.
CHANCE OF LIGHTNING.9 PERCENT.
MAX TEMPERATURE.....56-59.
MIN HUMIDITY........33-38 PERCENT.
WIND (20 FT)........SOUTH WINDS 4 TO 7 MPH SHIFTING TO THE
EAST 4 TO 8 MPH AROUND 10AM.
RIDGETOP WIND.......SOUTH WINDS 4 TO 7 MPH SHIFTING TO THE
EAST 4 TO 9 MPH AROUND 10AM.
MIXING HEIGHT.......5400 FT AGL EARLY IN THE MORNING.
TRANSPORT WINDS.....SOUTH 6 TO 13 MPH.
VENTILATION INDEX...LOW (30) INCREASING TO MODERATE (470) IN THE
AFTERNOON.
FORECASTER...LAWHORN
REQUESTED BY...NICHOLAS STEEL
TYPE OF REQUEST...PRESCRIBED
.TAG 2611886.2/PDT
.DELDT 04/30/26
.FORMATTERVERSION 2.0.0
.EMAIL NICHOLAS.STEEL@USDA.GOV
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