081
FNUS76 KPDT 120347
FWSPDT

Spot Forecast for North Wenas RX...Washington DNR
National Weather Service Pendleton OR
847 PM PDT Sat Oct 11 2025

Forecast is based on ignition time of 0600 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...Rain and snow shower chances with wetting rains
remain through the forecast period. RH recovery levels remain
Good to Excellent, with Min RH remain steadily in the mid 50s
to low 60`s. Winds will mostly be diurnally driven by
upslope/downslope cycles with some periods of a stronger flow
in the afternoon hours.


.SUNDAY...

Sky/weather.........Cloudy (85-95 percent). Rain showers and snow
                    showers likely.
CWR.................6 percent increasing to 72 percent late in the
                    afternoon.
Chance of lightning.6 percent.
Max temperature.....44-47.
Min humidity........55-60 percent.
Wind (20 ft)........Diurnal driven light upslope winds becoming
                    West 3 to 7 mph by 11 AM, then becoming light
                    by 2 PM.
Ridgetop wind.......Light winds becoming West 4 to 8 mph by 11 AM,
                    then becoming light by 2 PM.
Mixing height.......2800 ft AGL.
Transport winds.....West 8 to 15 mph becoming light.
Ventilation Index...Poor (90) increasing to fair (250) in the
                    afternoon.

TIME (PDT)      6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Chc of ltng (%).0   0   0   0   0   0   0   0   10  10  10  10
Temp............40  39  41  42  43  44  44  45  44  45  44  41
RH..............67  69  66  59  56  56  56  56  59  60  63  72
20 FT wind dir..W   W   W   W   W   W   W   W   SW  SW  SW  E
20 FT wind spd..4   4   5   5   5   5   5   5   4   4   4   4
20 FT wind gust.6   6   6   6   6   7   7   7   7   7   7   6

.SUNDAY NIGHT...

Sky/weather.........Cloudy (85-95 percent). Rain and snow showers
                    through the night.
CWR.................72 percent increasing to 93 percent late in the
                    evening.
Chance of lightning.5 percent.
Min temperature.....36-39.
Max humidity........77-83 percent.
Wind (20 ft)........Light diurnal driven downslope winds.
Ridgetop wind.......Light winds.
Mixing height.......700 ft.
Transport winds.....Light winds becoming east 7 to 14 mph early in
                    the evening, then shifting to the northeast
                    around 17 mph early in the morning.
Ventilation Index...Poor (50).

.COLUMBUS DAY...

Sky/weather.........Mostly cloudy (75-85 percent) then becoming
                    mostly sunny (40-50 percent). Snow showers
                    likely in the morning.
CWR.................69 percent decreasing to 0 percent late in the
                    morning.
Chance of lightning.1 percent.
Max temperature.....40-44.
Min humidity........59-64 percent.
Wind (20 ft)........Light diurnal driven upslope winds becoming
                    northeast 5 to 8 mph by 11 AM.
Ridgetop wind.......Light winds becoming northeast 6 to 9 mph by 11 AM.
Mixing height.......2500 ft AGL.
Transport winds.....Northeast 14 to 18 mph.
Ventilation Index...Poor (110) increasing to fair (340) in the
                    afternoon.

$$
Forecaster...Day
Requested by...Andrew Clark
Type of request...PRESCRIBED
.TAG 2523452.0/PDT
.DELDT 10/11/25
.FormatterVersion 2.0.0
.EMAIL andrew.clark@dnr.wa.gov