216
FNUS76 KPDT 040016
FWSPDT

Spot Forecast for Klickitat Oaks Rx Fire...Washington DNR
National Weather Service Pendleton OR
516 PM PDT Sat Oct 3 2026

Forecast is based on ignition time of 1800 PDT on October 03.
***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...Warm, dry conditions accompanied by light, diurnally
and terrain-driven winds will continue through the weekend. RH recovery
is expected to be good (ridges/mid-slopes) to locally excellent
(drainages). A return of westerly winds is forecast by Monday afternoon
and evening, but not anticipating winds to be more than locally breezy
along ridgetops (80% confidence).

.TONIGHT...

Sky/weather.........Mostly clear (0-15 percent).
CWR.................0 percent.
Chance of lightning.0 percent.
Min temperature.....52-55.
Max humidity........63-68 percent.
Wind (20 ft)........Southeast winds 4-6 mph early evening, shifting
                    to the north to north 2-5 mph late evening and
                    overnight.
Ridgetop wind.......Southeast winds 4-6 mph early evening, shifting
                    to the north to north 2-5 mph late evening and
                    overnight.
Mixing height.......Decreasing to 300-600 ft AGL overnight.
Transport winds.....Southeast 5-7 mph early evening, shifting to the
                    north 5-7 mph late evening and overnight.
Ventilation Index...Decreasing to low (30) overnight.

TIME (PDT)      6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
Chc of ltng (%).0   0   0   0   0   0   0   0   0   0   0   0
Temp............73  70  65  62  60  58  58  57  56  55  55  54
RH..............41  46  51  55  59  61  61  61  61  61  61  61
20 FT wind dir..S   SW  W   NW  NW  N   N   N   N   N   NE  NE
20 FT wind spd..5   4   4   4   4   3   3   4   3   3   2   2
20 FT wind gust.

.SUNDAY...

Sky/weather.........Sunny (0-20 percent).
CWR.................0 percent.
Chance of lightning.0 percent.
Max temperature.....79-82.
Min humidity........27-32 percent.
Wind (20 ft)........North to northeast winds 2-5 mph shifting to the
                    southeast 4-7 mph late morning and afternoon.
Ridgetop wind.......North to northeast winds 2-5 mph shifting to the
                    southeast 4-7 mph late morning and afternoon.
Mixing height.......Increasing to 2200-2600 ft AGL by early afternoon.
Transport winds.....Northeast to east 4-6 mph early morning, becoming
                    south to southeast 4-7 late morning and afternoon.
Ventilation Index...Low (30) increasing to low (90) in the
                    afternoon.

.SUNDAY NIGHT...

Sky/weather.........Partly cloudy (20-50 percent).
CWR.................0 percent.
Chance of lightning.0 percent.
Min temperature.....48-51.
Max humidity........70-75 percent.
Wind (20 ft)........Variable winds 1-4 mph early evening, becoming
                    drainage winds 1-4 mph late evening and overnight.
Ridgetop wind.......Variable winds 1-4 mph early evening, becoming
                    west to northwest winds 1-4 mph late evening
                    and overnight.
Mixing height.......Decreasing to 300-600 ft AGL overnight.
Transport winds.....West to northwest 4-6 mph.
Ventilation Index...Low (30).

.MONDAY...

Sky/weather.........Sunny (5-15 percent).
CWR.................0 percent.
Chance of lightning.0 percent.
Max temperature.....79-82.
Min humidity........25-30 percent.
Wind (20 ft)........Terrain-driven winds 1-4 mph shifting to the west
                    6-10 mph with gusts of 15-20 mph in the afternoon.
Ridgetop wind.......Terrain-driven winds 2-5 mph shifting to the west
                    6-10 mph with gusts of 15-20 mph in the afternoon.
Mixing height.......Increasing to 3200-3700 ft AGL by afternoon.
Transport winds.....West to northwest 5-8 mph in the morning, becoming
                    west 8-12 mph in the afternoon.
Ventilation Index...Low (30) increasing to moderate (220) in the
                    afternoon.

$$
Forecaster...Plunkett
Requested by...Adam Lieberg
Type of request...PRESCRIBED
.TAG 2622634.10/PDT
.DELDT 10/03/26
.FormatterVersion 2.0.0
.EMAIL alieberg@columbialandtrust.org,Jkelly@columbialandtrust.org