225
FNUS76 KPDT 121209
FWSPDT

Spot Forecast for North Wenas RX...WA DNR
National Weather Service Pendleton OR
509 AM PDT Sun Oct 12 2025

Forecast is based on ignition time of 0700 PDT on October 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 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...Another weather system will move into the region
today, making for widespread rain showers that could potentially
transition into snow for the site during the overnight hours
heading into Monday. While accumulations are expected to be
marginal, it is highly likely that the site will see wetting
precipitation by the time precip ends later in the day Monday.
Winds will start out west-northwesterly, before shifting
northeasterly late Sunday afternoon into the evening.

.TODAY...

Sky/weather.........Cloudy (90-100 percent). Chance of rain showers
                    (40-50 percent).
CWR.................5 percent increasing to 49 percent late in the
                    afternoon.
Chance of lightning.6 percent.
Max temperature.....46-49.
Min humidity........51-56 percent.
Wind (20 ft)........West-Northwest winds 5 to 10 mph.
Ridgetop wind.......West-Northwest winds 6 to 12 mph.
Mixing height.......3100 ft AGL.
Transport winds.....West 10 to 15 mph.
Ventilation Index...Poor (80) increasing to fair (320) in the
                    afternoon.

TIME (PDT)      7 AM   9 AM   11 AM  1 PM   3 PM   5 PM
Chc of ltng (%).0      0      0      0      10     10
Temp............39     42     44     45     45     42
RH..............70     61     59     54     59     71
20 ft wind......W 5    W 5    W 5    W 5    W 5    NE 4
20 ft wind gust.8      7      8      8      7      6

.TONIGHT...

Sky/weather.........Cloudy (90-100 percent). Rain showers likely
                    (70-80 percent) overnight, with snow mixing in
                    by the early morning.
CWR.................49 percent increasing to 81 percent late in the
                    evening.
Chance of lightning.6 percent.
Min temperature.....34-37.
Max humidity........76-81 percent.
Wind (20 ft)........Northeast winds 5 to 10 mph.
Ridgetop wind.......Northeast winds 7 to 14 mph early in the
                    evening, increasing to 12 to 20 mph overnight.
Mixing height.......700 ft AGL.
Transport winds.....Northeast around 8 mph early in the evening,
                    increasing to around 20 mph by the early
                    morning.
Ventilation Index...Poor (30) increasing to poor (60) overnight.

.MONDAY...

Sky/weather.........Mostly cloudy (60-70 percent). Snow showers
                    likely in the morning (65-75 percent),
                    transitioning into a mix by the afternoon.
CWR.................72 percent decreasing to 2 percent late in the
                    morning.
Chance of lightning.0 percent.
Max temperature.....42-45.
Min humidity........55-60 percent.
Wind (20 ft)........Northeast winds 5 to 10 mph.
Ridgetop wind.......Northeast winds 10 to 18 mph.
Mixing height.......2000 ft AGL.
Transport winds.....Northeast around 20 mph.
Ventilation Index...Poor (160) increasing to fair (340) in the
                    afternoon.

$$
Forecaster...Evans
Requested by...Jason Hoerner
Type of request...PRESCRIBED
.TAG 2523426.1/PDT
.DELDT 10/12/25
.FormatterVersion 2.0.0
.EMAIL Chris.Brandon@dnr.wa.gov,Walter.Escobar@dnr.wa.gov,Jthoer.85mx@gmail.com