774
FNUS76 KPDT 302257
FWSPDT
SPOT FORECAST FOR ELK 16 C RX...USFS
NATIONAL WEATHER SERVICE PENDLETON OR
357 PM PDT THU APR 30 2026
FORECAST IS BASED ON IGNITION TIME OF 0800 PDT ON MAY 01.
***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
LIGHT AND VARIABLE WINDS ON FRIDAY MORNING WILL DEVELOP FROM
THE SOUTH AT AROUND 10 TO 13 MPH BY THE 9 TO 10 AM TIMEFRAME.
THE RIDGETOPS WILL SEE WINDS IN THE 15 TO 20 MPH RANGE.
AS AFTERNOON RELATIVE HUMIDITIES FALL TO AROUND 25 PERCENT,
RECOVERIES OVERNIGHT INTO SATURDAY MORNING ARE ONLY ANTICIPATED
TO REACH AROUND 45 PERCENT.
FRIDAY
SKY/WEATHER.........MOSTLY SUNNY (20-30 PERCENT).
CWR.................0 PERCENT.
CHANCE OF LIGHTNING.0 PERCENT.
MAX TEMPERATURE.....AROUND 70.
MIN HUMIDITY........18-23 PERCENT.
WIND (20 FT)........SOUTHEAST WINDS 7 TO 13 MPH.
RIDGETOP WIND.......SOUTHEAST WINDS 15 TO 20 MPH.
MIXING HEIGHT.......7400 FT AGL.
TRANSPORT WINDS.....SOUTH 12 TO 16 MPH.
VENTILATION INDEX...MODERATE (200) INCREASING TO VERY HIGH (890) IN
THE AFTERNOON.
SOUTHEAST WINDS 7 TO 13 MPH.
TIME (PDT) 8 AM 10 AM NOON 2 PM 4 PM 6 PM
CHC OF LTNG (%).0 0 0 0 0 0
TEMP............46 58 64 66 67 64
RH..............45 33 27 24 22 28
20 FT WIND......S 6 S 10 S 13 SE 12 SE 12 SE 8
20 FT WIND GUST.12 12 14 14 14 14
FRIDAY NIGHT
SKY/WEATHER.........PARTLY CLOUDY (40-50 PERCENT) THEN BECOMING
MOSTLY CLOUDY (50-60 PERCENT).
CWR.................0 PERCENT.
CHANCE OF LIGHTNING.1 PERCENT.
MIN TEMPERATURE.....43-46.
MAX HUMIDITY........43-48 PERCENT.
WIND (20 FT)........SOUTHEAST WINDS 5 TO 8 MPH SHIFTING TO THE EAST
5 TO 7 MPH OVERNIGHT, THEN BECOMING LIGHT EARLY
IN THE MORNING.
RIDGETOP WIND.......SOUTHEAST WINDS 7 TO 10 MPH SHIFTING TO THE EAST
6 TO 9 MPH OVERNIGHT, THEN BECOMING LIGHT EARLY
IN THE MORNING.
MIXING HEIGHT.......1400 FT AGL.
TRANSPORT WINDS.....SOUTHEAST 9 TO 13 MPH SHIFTING TO THE EAST
AROUND 9 MPH EARLY IN THE MORNING.
VENTILATION INDEX...MODERATE (390) DECREASING TO LOW (110)
OVERNIGHT.
SATURDAY
SKY/WEATHER.........PARTLY SUNNY (55-65 PERCENT).
CWR.................0 PERCENT.
CHANCE OF LIGHTNING.3 PERCENT.
MAX TEMPERATURE.....69-72.
MIN HUMIDITY........17-22 PERCENT.
WIND (20 FT)........LIGHT WINDS BECOMING EAST 5 TO 8 MPH EARLY IN
THE MORNING.
RIDGETOP WIND.......LIGHT WINDS BECOMING EAST 5 TO 8 MPH EARLY IN
THE MORNING.
MIXING HEIGHT.......8000 FT AGL.
TRANSPORT WINDS.....SOUTHEAST 9 TO 14 MPH.
VENTILATION INDEX...LOW (140) INCREASING TO VERY HIGH (720) IN THE
AFTERNOON.
FORECASTER...RUSSELL
REQUESTED BY...JESSE RIGEL
TYPE OF REQUEST...PRESCRIBED
.TAG 2612325.0/PDT
.DELDT 04/30/26
.FORMATTERVERSION 2.0.0
.EMAIL JESSE.RIGEL@USDA.GOV
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