178
FNUS76 KPDT 111652
FWSPDT

Spot Forecast for BCA...The Nature Conservancy
National Weather Service Pendleton OR
852 AM PST Tue Nov 11 2025

Forecast is based on ignition time of 0900 PST on November 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...A weather system will introduce periods of rain
and gusty winds through the forecast period. The greatest chances
of rain will begin early Thursday morning through the rest of the
day Thursday, but forecasts don`t show great potential for wetting
rains occurring. The biggest highlight will be the winds, with
the strongest occurring Thursday afternoon with gusts reaching
15-20 mph. Overnight recoveries will be `Excellent` with the
incoming system, with min RH`s in the high 60s to low 70s.

.WEDNESDAY...

Sky/weather.........Mostly cloudy (75-85 percent).
CWR.................0 percent.
Chance of lightning.0 percent.
Max temperature.....50-55.
Min humidity........68-73 percent.
Wind (20 ft)........South winds 4 to 9 mph, shifting to the Northeast
                    5 to 10 mph by 11 AM.
Mixing height.......1800 ft AGL.
Transport winds.....Light winds becoming northeast 5 to 10 mph in
                    the late morning and afternoon.
Ventilation Index...Poor (50).

TIME (PST)      9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM 6PM 7PM 8PM
Chc of ltng (%).0   0   0   0   0   0   0   0   0   0   0   0
Temp............45  48  50  51  52  52  52  51  50  49  47  46
RH..............90  84  79  75  72  71  73  75  78  82  86  88
20 FT wind dir..E   NE  NE  NE  NE  NE  NE  NE  NE  NE  NE  NE
20 FT wind spd..5   5   5   5   7   7   7   6   6   6   6   6
20 FT wind gust.    6   6   6

.WEDNESDAY NIGHT...

Sky/weather.........Mostly cloudy (70-80 percent). Chance of rain
                    in the late evening through early morning hours.
                    Rain likely after 3 am.
CWR.................7 percent.
Chance of lightning.1 percent.
Min temperature.....41-46.
Max humidity........90-95 percent.
Wind (20 ft)........Northeast winds 5 to 10 mph.
Mixing height.......500 ft AGL.
Transport winds.....Northeast 7 to 12 mph.
Ventilation Index...Poor (30).

.THURSDAY...

Sky/weather.........Mostly cloudy (75-85 percent). Rain likely in
                    the morning and afternoon.
CWR.................7 percent.
Chance of lightning.4 percent.
Max temperature.....53-58.
Min humidity........73-78 percent.
Wind (20 ft)........Northeast winds 7 to 12 mph shifting to the
                    north 9 to 14 mph by 11 AM, then shifting
                    to the west 10 to 15 mph by 2 PM.
Mixing height.......2000 ft AGL.
Transport winds.....Northeast 8 to 12 mph shifting to the west 12
                    to 17 mph in the afternoon.
Ventilation Index...Poor (120).

$$
Forecaster...Day
Requested by...Gabe Clift
Type of request...PRESCRIBED
.TAG 2525591.0/PDT
.DELDT 11/11/25
.FormatterVersion 2.0.0
.EMAIL gabriel.clift@tnc.org