870
FNUS76 KPDT 120151
FWSPDT

Spot Forecast for Bench_081226...ORWST
National Weather Service Pendleton OR
651 PM PDT Tue Aug 11 2026

Forecast is based on forecast start time of 0700 PDT on August 12.
***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...Elevated fire weather conditions prevail with sunny to
partly cloudy skies with patchy smoke lingering in the area. Winds will
be generally light but could see some breezy 15 to 25 mph gusts from the
west develop in the late Wednesday afternoon, lasting into the evening
hours. Otherwise, overnight recoveries will be good to excellent with
values ranging from the 65 to 75 percent range.

.WEDNESDAY...

Sky/weather.........Sunny (5-15 percent). Patchy smoke.
CWR.................0 percent.
Chance of lightning.1 percent.
Max temperature.....77-82.
Min humidity........30-35 percent.
Wind (20 ft)........West winds 5 to 10 mph, then becoming
                    light and variable by 8 AM. Winds shift to the
                    west at 5 to 10 mph by 1 PM.
Ridgetop wind.......West winds 7 to 12 mph, then becoming
                    light and variable by 8 AM. Winds shift to the
                    west at 7 to 12 mph by 1 PM.
Mixing height.......4800 ft AGL early in the morning.
Transport winds.....West 6 to 15 mph.
Ventilation Index...Low (60-70) increasing to moderate (360-400) in
                    the afternoon.

TIME (PDT)      7 AM   9 AM   11 AM  1 PM   3 PM   5 PM
Chc of ltng (%).0      0      0      0      0      0
Temp............53     60     69     74     76     74
RH..............77     64     51     42     37     40
20 ft wind......W 6    SE 5   E 5    W 6    W 8    W 10
20 ft wind gust.8      6      6      10     13     17

.WEDNESDAY NIGHT...

Sky/weather.........Partly cloudy (30-40 percent). Patchy smoke.
CWR.................0 percent.
Chance of lightning.1 percent.
Min temperature.....47-52.
Max humidity........70-75 percent.
Wind (20 ft)........West winds 5 to 10 mph with gusts to around 20
                    mph, becoming light by 11 PM.
Ridgetop wind.......West winds 7 to 12 mph with gusts to around 25
                    mph, becoming light by 11 PM.
Mixing height.......600 ft AGL in the evening.
Transport winds.....West 10 to 15 mph.
Ventilation Index...Moderate (220-240) decreasing to low (30-40)
                    overnight.

.THURSDAY...

Sky/weather.........Sunny (15-25 percent).
CWR.................0 percent.
Chance of lightning.5 percent.
Max temperature.....78-83.
Min humidity........27-32 percent.
Wind (20 ft)........Light winds becoming north 5 to 10 mph by 1 PM.
Ridgetop wind.......Light winds becoming north 7 to 12 mph by 1 PM.
Mixing height.......7000 ft AGL early in the morning.
Transport winds.....Northwest 5 to 10 mph shifting to the east
                    5 to 10 mph late in the morning, then shifting
                    to the northwest late in the afternoon.
Ventilation Index...Low (30) increasing to low (80-180) in the
                    afternoon.

$$
Forecaster...Day
Requested by...Plans
Type of request...WILDFIRE
.TAG 2619486.0/PDT
.DELDT 08/11/26
.FormatterVersion 2.0.0
.EMAIL antone.moody@ctwsbnr.org