954
FNUS76 KPDT 281435
FWSPDT

Spot Forecast for WILDCAT...USFS
National Weather Service Pendleton OR
735 AM PDT Thu Aug 28 2025

Forecast is based on forecast start time of 0900 PDT on August 28.
***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...There is a chance of showers and a slight chance of
thunderstorms through this evening.  Then, dry conditions are
expected through Friday.

Winds will generally be less than 10 mph.

MIN RH values will be 40 to 45 percent today and 25 to 30 percent on
Friday, with excellent recoveries overnight.


.TODAY...

Sky/weather.........Mostly sunny (25-35 percent). Haze in the late
                    morning and afternoon. Chance (30%) of rain showers
                    and slight chance (20%) of thunderstorms late in the
                    afternoon.
CWR.................4 percent.
Chance of lightning.21 percent.
Max temperature.....71-74.
Min humidity........39-44 percent.
Wind (20 ft)........Light winds becoming west 5 to 7 mph late in
                    the afternoon. Gusty and erratic winds expected
                    near thunderstorms late in the morning.
Ridgetop wind.......South winds 5 to 10 mph, becoming west, then north
                    by late afternoon.
Mixing height.......5900 ft AGL.
Transport winds.....Southwest 6 to 9 mph.
Ventilation Index...Poor (60) increasing to fair (420) in the
                    afternoon.

TIME (PDT)      9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM 6PM 7PM 8PM
Chc of ltng (%).10  10  20  20  20  20  20  20  10  10  10  0
Temp............59  62  65  68  69  70  70  71  69  68  65  61
RH..............70  62  54  50  47  44  45  44  48  53  60  68
20 FT wind dir..S   S   SW  SW  SW  W   W   W   W   W   W   W
20 FT wind spd..4   4   4   4   4   5   5   5   5   5   5   4
20 FT wind gust.5   5   6   6   6   8   8   8   8   8   8   6

.TONIGHT...

Sky/weather.........Partly cloudy (25-35 percent). Slight chance (20%)
                    chance of showers and thunderstorms early in the evening.
CWR.................0 percent.
Chance of lightning.11 percent.
Min temperature.....53-56.
Max humidity........70-75 percent.
Wind (20 ft)........West winds 5 to 7 mph early in the evening
                    becoming light.
Ridgetop wind.......North winds 5 to 10 mph becoming south early in the evening.
Mixing height.......3600 ft AGL.
Transport winds.....Southwest around 7 mph early in the evening
                    becoming light, then becoming south 5 to 6 mph
                    late in the evening.
Ventilation Index...Poor (70) decreasing to poor (30) overnight.

.FRIDAY...

Sky/weather.........Mostly sunny (25-35 percent). Haze early in the
                    morning.
CWR.................0 percent.
Chance of lightning.5 percent.
Max temperature.....Around 80.
Min humidity........25-30 percent.
Wind (20 ft)........Light winds becoming southwest 5 to 7 mph late
                    in the afternoon.
Ridgetop wind.......South winds 5 to 10 mph, becoming southwest in the afternoon.
Mixing height.......6100 ft AGL.
Transport winds.....South 5 to 13 mph.
Ventilation Index...Poor (30) increasing to good (510) in the
                    afternoon.

$$
Forecaster...Nierenberg
Requested by...WENATCHEE DISPATCH
Type of request...WILDFIRE
.TAG 2520729.0/PDT
.DELDT 08/28/25
.FormatterVersion 2.0.0
.EMAIL WACWC@FIRENET.GOV