723
FNUS76 KPDT 300802
FWSPDT
SPOT FORECAST FOR RP 5000...USFS
NATIONAL WEATHER SERVICE PENDLETON OR
102 AM PDT THU APR 30 2026
FORECAST IS BASED ON IGNITION TIME OF 0600 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
DRY WEATHER IS EXPECTED TO DAY AND TONIGHT.
THERE IS A 30 PERCENT CHANCE OF RAIN AND A 10 TO 20 PERCENT
CHANCE OF AFTERNOON THUNDERSTORMS ON FRIDAY.
TEMPERATURES WILL WARM EACH DAY. WINDS WILL GENERALLY BE 10 MPH
OR LESS.
MIN RH VALUES WILL BE AROUND 20 TO 25 PERCENT WITH GOOD OVERNIGHT
RECOVERIES.
TODAY
SKY/WEATHER.........MOSTLY SUNNY (35-45 PERCENT).
CWR.................0 PERCENT.
CHANCE OF LIGHTNING.3 PERCENT.
MAX TEMPERATURE.....64-67.
MIN HUMIDITY........19-24 PERCENT.
WIND (20 FT)........LIGHT WINDS BECOMING NORTHEAST 5 TO 7 MPH EARLY
IN THE MORNING, THEN SHIFTING TO THE EAST 5 TO
8 MPH LATE IN THE MORNING SHIFTING TO THE
NORTHEAST AROUND 5 MPH LATE IN THE AFTERNOON.
RIDGETOP WIND.......SOUTHEAST WIND 5 TO 10 MPH BECOMING NORTHEAST
IN THE AFTERNOON.
MIXING HEIGHT.......8000 FT AGL EARLY IN THE MORNING.
TRANSPORT WINDS.....EAST AROUND 7 MPH DECREASING TO 5 TO 7 MPH LATE
IN THE MORNING.
VENTILATION INDEX...LOW (70) INCREASING TO MODERATE (360) IN THE
AFTERNOON.
TIME (PDT) 6 AM 8 AM 10 AM NOON 2 PM 4 PM
CHC OF LTNG (%).0 0 0 0 0 0
TEMP............35 39 52 58 62 64
RH..............78 69 45 31 26 23
20 FT WIND......N 4 NE 5 NE 5 E 7 E 6 E 6
20 FT WIND GUST.7 10 10 11 10 10
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY (20-30 PERCENT).
CWR.................0 PERCENT.
CHANCE OF LIGHTNING.3 PERCENT.
MIN TEMPERATURE.....AROUND 40.
MAX HUMIDITY........58-63 PERCENT.
WIND (20 FT)........NORTHEAST WINDS 5 TO 7 MPH EARLY IN THE EVENING
BECOMING LIGHT.
RIDGETOP WIND.......NORTHEAST WIND 5 TO 10 MPH, BECOMING SOUTHEAST
BY MORNING.
MIXING HEIGHT.......900 FT AGL IN THE EVENING.
TRANSPORT WINDS.....EAST 6 TO 9 MPH SHIFTING TO THE SOUTH AROUND 7
MPH EARLY IN THE MORNING.
VENTILATION INDEX...MODERATE (280) DECREASING TO LOW (30)
OVERNIGHT.
FRIDAY
SKY/WEATHER.........PARTLY SUNNY (45-55 PERCENT). CHANCE (30 PERCENT)
OF RAIN SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS LATE
IN THE AFTERNOON.
CWR.................0 PERCENT.
CHANCE OF LIGHTNING.17 PERCENT.
MAX TEMPERATURE.....AROUND 70.
MIN HUMIDITY........19-24 PERCENT.
WIND (20 FT)........LIGHT WINDS BECOMING SOUTH 5 TO 8 MPH LATE IN
THE MORNING, THEN SHIFTING TO THE SOUTHWEST 5
TO 7 MPH LATE IN THE AFTERNOON. GUSTY AND
ERRATIC WINDS EXPECTED NEAR THUNDERSTORMS LATE
IN THE AFTERNOON.
RIDGETOP WIND.......SOUTHEAST WINDS 5 TO 10 MPH, BECOMING SOUTH
IN THE AFTERNOON.
MIXING HEIGHT.......8400 FT AGL EARLY IN THE MORNING.
TRANSPORT WINDS.....SOUTH 7 TO 15 MPH.
VENTILATION INDEX...LOW (40) INCREASING TO VERY HIGH (860) IN THE
AFTERNOON.
FORECASTER...NIERENBERG
REQUESTED BY...PATRICK ODELL
TYPE OF REQUEST...PRESCRIBED
.TAG 2612114.1/PDT
.DELDT 04/30/26
.FORMATTERVERSION 2.0.0
.EMAIL PATRICK.ODELL@USDA.GOV,MAX.LEIDENFROST@USDA.GOV
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