531
FNUS76 KPDT 202216
FWSPDT
SPOT FORECAST FOR ROWE SHINGLE COYOTE AND HENRY FIRES...ODF
NATIONAL WEATHER SERVICE PENDLETON OR
316 PM PDT SUN SEP 20 2026
FORECAST IS BASED ON FORECAST START TIME OF 1600 PDT ON SEPTEMBER 20.
***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
CLEAR CONDITIONS AND LIGHT WINDS FROM THE EAST WILL PREVAIL
THIS EVENING WITH A SLIGHT PICKUP TO 7 TO 12 MPH OVERNIGHT, THEN
WEAKENING ON MONDAY. NO DRY THUNDER EXPECTED, AND RELATIVE HUMIDITY
RISING TO AROUND 55 PERCENT OVERNIGHT.
REST OF TODAY
SKY/WEATHER.........SUNNY (0-10 PERCENT).
CWR.................0 PERCENT.
CHANCE OF LIGHTNING.0 PERCENT.
MAX TEMPERATURE.....72-81.
MIN HUMIDITY........19-29 PERCENT.
WIND (20 FT)........SOUTHEAST WINDS UP TO 6 MPH.
RIDGETOP WIND.......SOUTHEAST WINDS UP TO 6 MPH.
MIXING HEIGHT.......5200 FT AGL.
TRANSPORT WINDS.....SOUTHEAST AROUND 7 MPH.
VENTILATION INDEX...LOW (60) DECREASING TO LOW (30) OVERNIGHT.
TIME (PDT) 4 PM 6 PM 8 PM 10 PM MIDNGT 2 AM
CHC OF LTNG (%).0 0 0 0 0 0
TEMP............76 73 63 59 58 57
RH..............24 30 43 48 48 49
20 FT WIND......SE 6 E 5 E 4 E 5 SE 6 SE 7
20 FT WIND GUST.11 8 7 7 12 12
TONIGHT
SKY/WEATHER.........MOSTLY CLEAR (5-15 PERCENT).
CWR.................0 PERCENT.
CHANCE OF LIGHTNING.0 PERCENT.
MIN TEMPERATURE.....49-55.
MAX HUMIDITY........48-64 PERCENT.
WIND (20 FT)........EAST WINDS UP TO 5 MPH EARLY IN THE EVENING
BECOMING LIGHT, THEN BECOMING SOUTHEAST UP TO 7
MPH IN THE LATE EVENING AND OVERNIGHT.
RIDGETOP WIND.......EAST WINDS UP TO 7 MPH EARLY IN THE EVENING
BECOMING LIGHT, THEN BECOMING SOUTHEAST UP TO 7
MPH IN THE LATE EVENING AND OVERNIGHT.
MIXING HEIGHT.......2700 FT AGL EARLY IN THE EVENING.
TRANSPORT WINDS.....SOUTHEAST 7 TO 8 MPH.
VENTILATION INDEX...LOW (100-170) DECREASING TO LOW (30) OVERNIGHT.
MONDAY
SKY/WEATHER.........MOSTLY SUNNY (30-40 PERCENT) THEN BECOMING
MOSTLY CLOUDY (65-75 PERCENT).
CWR.................0 PERCENT.
CHANCE OF LIGHTNING.0 PERCENT.
MAX TEMPERATURE.....72-82.
MIN HUMIDITY........21-31 PERCENT.
WIND (20 FT)........SOUTHEAST WINDS UP TO 7 MPH SHIFTING TO THE
NORTHWEST 5 TO 7 MPH LATE IN THE AFTERNOON.
RIDGETOP WIND.......SOUTHEAST WINDS UP TO 8 MPH SHIFTING TO THE
NORTHWEST 6 TO 8 MPH LATE IN THE AFTERNOON.
MIXING HEIGHT.......5100 FT AGL EARLY IN THE MORNING.
TRANSPORT WINDS.....SOUTHEAST 7 TO 8 MPH SHIFTING TO THE SOUTHWEST
6 TO 7 MPH LATE IN THE MORNING, THEN SHIFTING
TO THE NORTHWEST AROUND 8 MPH LATE IN THE
AFTERNOON.
VENTILATION INDEX...LOW (40-50) INCREASING TO MODERATE (260-390) IN
THE AFTERNOON.
FORECASTER...RUSSELL
REQUESTED BY...DANA SKELLY
TYPE OF REQUEST...WILDFIRE
.TAG 2621886.4/PDT
.DELDT 09/18/26
.FORMATTERVERSION 2.0.0
.EMAIL DANA.SKELLY@OREGONSTATE.EDU
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page