675
FNUS76 KPDT 292252
FWSPDT
SPOT FORECAST FOR AERIAL IGNITION...WSA
NATIONAL WEATHER SERVICE PENDLETON OR
352 PM PDT WED APR 29 2026
FORECAST IS BASED ON IGNITION TIME OF 1600 PDT ON APRIL 29.
***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 CONDITIONS CONTINUE THIS EVENING AS RELATIVE HUMIDITY VALUES IMPROVE
TO AROUND 60% BY THE EARLY OVERNIGHT HOURS. NORTH NORTHEAST WINDS LESS THAN 10 MPH
WILL REMAIN LIGHT OVERNIGHT.
REST OF TODAY
SKY/WEATHER.........SUNNY (0-10 PERCENT).
CWR.................0 PERCENT.
CHANCE OF LIGHTNING.0 PERCENT.
MAX TEMPERATURE.....63-66.
MIN HUMIDITY........26-31 PERCENT.
WIND (20 FT)........NORTHEAST WINDS 5 TO 8 MPH.
RIDGETOP WIND.......NORTHEAST WINDS 7 TO 12 MPH.
MIXING HEIGHT.......5900 FT AGL.
TRANSPORT WINDS.....NORTHEAST 8 TO 13 MPH.
VENTILATION INDEX...
TIME (PDT) 4 PM 6 PM 8 PM 10 PM MIDNGT 2 AM
CHC OF LTNG (%).0 0 0 0 0 0
TEMP............64 64 60 54 51 47
RH..............30 30 38 46 51 57
20 FT WIND......NE 8 NE 8 N 6 N 6 NW 4 NW 3
20 FT WIND GUST.14 14 12 12 6 4
TONIGHT
SKY/WEATHER.........MOSTLY CLEAR (5-15 PERCENT).
CWR.................0 PERCENT.
CHANCE OF LIGHTNING.0 PERCENT.
MIN TEMPERATURE.....42-45.
MAX HUMIDITY........59-64 PERCENT.
WIND (20 FT)........NORTH WINDS 5 TO 8 MPH IN THE EVENING BECOMING
LIGHT.
RIDGETOP WIND.......NORTH WINDS 7 TO 12 MPH IN THE EVENING BECOMING
LIGHT.
MIXING HEIGHT.......600 FT AGL.
TRANSPORT WINDS.....NORTH 7 TO 13 MPH.
VENTILATION INDEX...MODERATE (330-380) DECREASING TO LOW (40-70)
OVERNIGHT.
THURSDAY
SKY/WEATHER.........MOSTLY SUNNY (30-40 PERCENT).
CWR.................0 PERCENT.
CHANCE OF LIGHTNING.0 PERCENT.
MAX TEMPERATURE.....69-72.
MIN HUMIDITY........22-27 PERCENT.
WIND (20 FT)........LIGHT WINDS BECOMING NORTHEAST 5 TO 8 MPH LATE
IN THE MORNING.
RIDGETOP WIND.......LIGHT WINDS BECOMING NORTHEAST 7 TO 10 MPH LATE
IN THE MORNING.
MIXING HEIGHT.......5900 FT AGL.
TRANSPORT WINDS.....NORTH AROUND 7 MPH SHIFTING TO THE EAST 6 TO 8
MPH EARLY IN THE MORNING.
VENTILATION INDEX...LOW (50-80) INCREASING TO MODERATE (290-350) IN
THE AFTERNOON.
FORECASTER...RUSSELL
REQUESTED BY...JEFF CASEY
TYPE OF REQUEST...PRESCRIBED
.TAG 2612169.0/PDT
.DELDT 04/29/26
.FORMATTERVERSION 2.0.0
.EMAIL JPNDSAMPSON@GMAIL.COM,JEFF.CASEY@CTWSBNR.ORG,JOEL.THOMPSON@CTWSBNR.ORG
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