858
FNUS76 KPDT 182304
FWSPDT

Spot Forecast for Soap Hill...USDA-FS
National Weather Service Pendleton OR
404 PM PDT Fri Jul 18 2025

Forecast is based on forecast start time of 1900 PDT on July 18.
***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 cold front is passing over the fire area this
afternoon, shifting winds from the southwest to the northwest by
5 PM as winds increase and peak between 5 PM and 8 PM. Clouds will
increase slightly tonight as good overnight humidity recoveries
are anticipated. High temperatures will be about 5 degrees warmer
Saturday behind the cold front, with winds increasing through the
afternoon as a weak pressure gradient develops. Afternoon
humidities will also bump up about 10% on Saturday.

.REST OF TODAY...

Sky/weather.........Mostly clear (10-20 percent).
CWR.................0 percent.
Chance of lightning.0 percent.
Max temperature.....Around 90.
Min humidity........22-26 percent.
Ridgetop wind.......Southwest 5 to 10 mph.
Mixing height.......8300 ft AGL.
Transport winds.....Southwest 10 to 15 mph
Ventilation Index...Excellent (996)

.TONIGHT...

Sky/weather.........Mostly clear (15-25 percent). Haze in the
                    evening.
CWR.................0 percent.
Chance of lightning.1 percent.
Min temperature.....52-55.
Max humidity........64-69 percent.
Wind (20 ft)........Northwest winds 5 to 10 mph with gusts up to
                    15 mph shifting to the southwest around 5 mph
                    after 11 PM.
Ridgetop wind.......Northwest winds 6 to 12 mph with gusts up to
                    18 mph shifting to the southwest 5 to 8 mph
                    after 11 PM.
Mixing height.......600 ft AGL.
Transport winds.....West around 10 mph.
Ventilation Index...Fair (490) decreasing to poor (50) overnight.

.SATURDAY...

Sky/weather.........Sunny (15-25 percent).
CWR.................0 percent.
Chance of lightning.1 percent.
Max temperature.....83-86.
Min humidity........29-33 percent.
Wind (20 ft)........Southwest winds 3 to 6 mph increasing 5 to
                    10 mph with gusts up to 15 mph after 8 AM and
                    shifting from the west after 1 PM.
Ridgetop wind.......Southwest winds 4 to 8 mph increasing to 6 to
                    12 mph with gusts up to 18 mph after 8 AM and
                    shifting from the west after 1 PM.
Mixing height.......7700 ft AGL.
Transport winds.....West around 15 mph.
Ventilation Index...Poor (180) increasing to excellent (1010) in
                    the afternoon.

.SATURDAY NIGHT...

Sky/weather.........Partly cloudy (25-35 percent).
CWR.................0 percent.
Chance of lightning.0 percent.
Min temperature.....49-52.
Max humidity........61-66 percent.
Wind (20 ft)........West winds 5 to 10 mph with gusts up to 15 mph
                    becoming northwest around 6 PM and decreasing
                    3 to 6 mph after 9 PM.
Ridgetop wind.......West wind 6 to 12 mph with gusts up to 18 mph
                    becoming northwest around 6 PM and decreasing
                    4 to 8 mph after 9 PM.
Mixing height.......600 ft AGL.
Transport winds.....West around 9 mph.
Ventilation Index...Fair (400) decreasing to poor (40) overnight.

$$
Forecaster...Callihan
Requested by...Clay Gabelmann
Type of request...WILDFIRE
.TAG 2518230.0/PDT
.DELDT 07/18/25
.FormatterVersion 2.0.0
.EMAIL clay.gabelmann@usda.gov,charles.meyer2@usda.gov,tyler.arbogast@odf.oregon.gov