131
FNUS76 KPDT 040709
FWSPDT
SPOT FORECAST FOR ROSY OWL CLOVER RX...WASHINGTON DEPARTMENT OF NATURAL RESOURCES
NATIONAL WEATHER SERVICE PENDLETON OR
1209 AM PDT SUN OCT 4 2026
FORECAST IS BASED ON IGNITION TIME OF 0700 PDT ON OCTOBER 04.
***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
SURFACE WINDS LIGHT AND UNDER 5 MPH WILL BE SOUTHWESTERLY IN THE
MORNING, AND THEN BECOMING EASTERLY IN THE AFTERNOON. THE RIDGES
TO THE WEST MIGHT HAVE WINDS UP TO 10 MPH FROM THE NORTH IN THE
EVENING HOURS (AFTER 2100). NO RAIN OR DRY THUNDER RISK DURING
THIS FORECAST. EXPECT MINIMUM RELATIVE HUMIDITY AROUND 30 PERCENT
THIS AFTERNOON TO RECOVER OVERNIGHT TO NEAR 46 PERCENT.
REST OF TODAY
SKY/WEATHER.........SUNNY (0-10 PERCENT).
CWR.................0 PERCENT.
CHANCE OF LIGHTNING.0 PERCENT.
MAX TEMPERATURE.....81-84.
MIN HUMIDITY........28-33 PERCENT.
WIND (20 FT)........SOUTH WINDS NEAR 5 MPH EARLY IN THE MORNING
BECOMING LIGHT, THEN BECOMING EAST AROUND 5
MPH LATE IN THE AFTERNOON.
RIDGETOP WIND.......SOUTH WINDS NEAR 5 MPH EARLY IN THE MORNING
BECOMING LIGHT, THEN BECOMING EAST AROUND 5
MPH LATE IN THE AFTERNOON.
MIXING HEIGHT.......2900 FT AGL.
TRANSPORT WINDS.....NORTHEAST AROUND 7 MPH EARLY IN THE MORNING
BECOMING LIGHT, THEN BECOMING SOUTHWEST 5 TO 7
MPH LATE IN THE MORNING.
VENTILATION INDEX...LOW (30) INCREASING TO LOW (130) IN THE
AFTERNOON.
TIME (PDT) 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM 6PM
CHC OF LTNG (%).0 0 0 0 0 0 0 0 0 0 0 0
TEMP............45 45 50 58 65 72 77 79 80 81 79 76
RH..............73 74 67 61 51 40 35 33 32 32 35 42
20 FT WIND DIR..NE NE E N N SE SE SE S S S SE
20 FT WIND SPD..5 5 4 2 2 3 4 4 4 5 4 3
20 FT WIND GUST.6 7 6 2 2 4 5 6 6 6 6 6
TONIGHT
SKY/WEATHER.........MOSTLY CLEAR (20-30 PERCENT).
CWR.................0 PERCENT.
CHANCE OF LIGHTNING.0 PERCENT.
MIN TEMPERATURE.....45-48.
MAX HUMIDITY........65-70 PERCENT.
WIND (20 FT)........LIGHT WINDS.
RIDGETOP WIND.......LIGHT WINDS.
MIXING HEIGHT.......1200 FT AGL EARLY IN THE EVENING THEN 500 FT
AGL LATE IN THE EVENING.
TRANSPORT WINDS.....WEST 5 TO 6 MPH SHIFTING TO THE NORTHWEST
AROUND 5 MPH LATE IN THE EVENING.
VENTILATION INDEX...LOW (30).
MONDAY
SKY/WEATHER.........SUNNY (10-20 PERCENT) THEN BECOMING PARTLY
SUNNY (55-65 PERCENT).
CWR.................0 PERCENT.
CHANCE OF LIGHTNING.0 PERCENT.
MAX TEMPERATURE.....82-85.
MIN HUMIDITY........22-27 PERCENT.
WIND (20 FT)........LIGHT WINDS BECOMING WEST 5 TO 8 MPH LATE IN
THE AFTERNOON.
RIDGETOP WIND.......LIGHT WINDS BECOMING WEST 9 TO 15 MPH LATE IN
THE AFTERNOON.
MIXING HEIGHT.......3600 FT AGL EARLY IN THE MORNING.
TRANSPORT WINDS.....NORTHWEST AROUND 5 MPH SHIFTING TO THE WEST
LATE IN THE MORNING.
VENTILATION INDEX...LOW (30) INCREASING TO MODERATE (260) IN THE
AFTERNOON.
FORECASTER...RUSSELL
REQUESTED BY...DYLAN WALTERS
TYPE OF REQUEST...PRESCRIBED
.TAG 2622948.2/PDT
.DELDT 10/04/26
.FORMATTERVERSION 2.0.0
.EMAIL DYLAN.WALTERS@DNR.WA.GOV,EMILY.RICHARDSON@DNR.WA.GOV
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