295
FNUS76 KPDT 160128
FWSPDT

Spot Forecast for Clearhuck...Yakama Agency
National Weather Service Pendleton OR
628 PM PDT Wed Oct 15 2025

Forecast is based on ignition time of 0000 PDT on October 16.
***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 the
   transport wind multiplied by the mixing
   height in 100`s of feet. Index categories
   are a generalized indicator only.***

If you have questions or concerns with this forecast, please
contact our office at (541) 276-8134.

.DISCUSSION...Quiet weather will continue tonight, before a weak
weather system moves into the region on Thursday, causing a chance
for showers along the Cascades, as well as an uptick in winds
along the east slopes. Gusts could potentially reach 30 mph during
the overnight period Thursday into Friday. A more widespread
precipitation threat is expected to impact the area starting late
Saturday night.

.OVERNIGHT...

Sky/weather.........Mostly clear (0-10 percent).
CWR.................0 percent.
Chance of lightning.0 percent.
Min temperature.....32-35.
Max humidity........57-62 percent.
Wind (20 ft)........Southwest winds 5 to 8 mph.
Ridgetop wind.......Northwest winds 5 to 10 mph.
Mixing height.......Near-surface.
Transport winds.....West around 8 mph.
Ventilation Index...Poor (40).

TIME (PDT)      MIDNGT 2 AM   4 AM   6 AM   8 AM   10 AM
Chc of ltng (%).0      0      0      0      0      0
Temp............34     33     34     33     32     44
RH..............60     58     55     53     57     45
20 ft wind......SW 7   SW 7   SW 7   SW 7   SW 7   SW 7
20 ft wind gust.8      8      8      8      8      8

.THURSDAY...

Sky/weather.........Mostly sunny (30-40 percent).
CWR.................1 percent.
Chance of lightning.0 percent.
Max temperature.....49-52.
Min humidity........38-43 percent.
Wind (20 ft)........Northwest winds 6 to 12 mph.
Ridgetop wind.......West-Northwest winds 7 to 14 mph.
Mixing height.......1200 ft AGL.
Transport winds.....West around 15 mph.
Ventilation Index...Poor (50) increasing to poor (150) in the
                    afternoon.

.THURSDAY NIGHT...

Sky/weather.........Mostly cloudy (65-75 percent). Chance of rain
                    showers (30-40 percent).
CWR.................4 percent.
Chance of lightning.0 percent.
Min temperature.....36-39.
Max humidity........82-87 percent.
Wind (20 ft)........West-Northwest winds 10 to 18 mph. Gusts up to 30
                    mph.
Ridgetop wind.......Northwest winds 20 to 30 mph.
Mixing height.......Near-surface.
Transport winds.....West around 20 mph.
Ventilation Index...Poor (90) decreasing to poor (70) overnight.

.FRIDAY...

Sky/weather.........Partly cloudy (40-50 percent). Chance of rain
                    showers in the morning (20-30 percent),
                    becoming dry by the afternoon.
CWR.................0 percent.
Chance of lightning.0 percent.
Max temperature.....43-46.
Min humidity........60-65 percent.
Wind (20 ft)........West-Northwest winds 8 to 16 mph. Gusts up to
                    25 mph.
Ridgetop wind.......West-Northwest winds 15 to 25 mph.
Mixing height.......2100 ft AGL.
Transport winds.....West around 17 mph.
Ventilation Index...Poor (90) increasing to fair (310) in the
                    afternoon.

$$
Forecaster...Evans
Requested by...Dan Sims
Type of request...PRESCRIBED
.TAG 2523714.0/PDT
.DELDT 10/15/25
.FormatterVersion 2.0.0
.EMAIL Dan_sims@yakama.com