301
FNUS76 KPDT 081637
FWSPDT

Spot Forecast for Soda Bear 9C...USFS
National Weather Service Pendleton OR
937 AM PDT Wed Oct 8 2025

Forecast is based on ignition time of 1100 PDT on October 08.
***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...

Temperatures will climb into the mid 60s by mid afternoon,
driving surface relative humidity as low as 24-26%. Light south winds
at 11 am will increase out of the southwest at around 10 mph and gust
as much a 15-18 mph in locally higher elevation.

.REST OF TODAY...

Sky/weather.........Sunny (5-15 percent).
CWR.................0 percent.
Max temperature.....66-69.
Min humidity........20-25 percent.
Wind (20 ft)........South winds 5 to 10 mph.
Ridgetop wind.......
Mixing height.......8600 ft AGL.
Transport winds.....South 15 to 24 mph.
Ventilation Index...Excellent (1050).

TIME (PDT)      11 AM  1 PM   3 PM   5 PM   7 PM   9 PM
Temp............57     63     65     64     59     50
RH..............38     30     26     25     33     47
20 ft wind......S 8    S 8    S 10   S 8    S 8    S 5
20 ft wind gust.14     14     14     14     14     8

.TONIGHT...

Sky/weather.........Partly cloudy (25-35 percent).
CWR.................0 percent.
Min temperature.....39-42.
Max humidity........59-64 percent.
Wind (20 ft)........South winds 5 to 8 mph shifting to the
                    southeast 5 to 7 mph late in the evening.
Ridgetop wind.......
Mixing height.......700 ft AGL.
Transport winds.....Southeast 9 to 15 mph.
Ventilation Index...Fair (220) decreasing to poor (60) overnight.

.THURSDAY...

Sky/weather.........Mostly sunny (20-30 percent).
CWR.................0 percent.
Max temperature.....66-69.
Min humidity........24-29 percent.
Wind (20 ft)........Southeast winds 5 to 7 mph shifting to the
                    south 5 to 8 mph late in the morning.
Ridgetop wind.......
Mixing height.......7000 ft AGL.
Transport winds.....South 10 to 12 mph increasing to 21 to 22 mph
                    late in the morning.
Ventilation Index...Poor (90) increasing to excellent (1050) in the
                    afternoon.

$$
Forecaster...Russell
Requested by...Thomas Fisher
Type of request...PRESCRIBED
.TAG 2523097.0/PDT
.DELDT 10/08/25
.FormatterVersion 2.0.0
.EMAIL chad.lauer@usda.gov,orjdcc@firenet.gov,thomas.fisher@usda.gov