395
FNUS76 KPDT 122317
FWSPDT

Spot Forecast for Willow Fire...BLM
National Weather Service Pendleton OR
417 PM PDT Sat Jul 12 2025

Forecast is based on forecast start time of 1800 PDT on July 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...High pressure will maintain hot and dry conditions
with afternoon relative humidities in the upper single digits to
lower teens. Expect moderate overnight humidity recovery. Northerly
to northwesterly winds will be diurnally and terrain-driven,
breeziest in the afternoon.

.SUNDAY...

Sky/weather.........Sunny (0-10 percent).
CWR.................0 percent.
Chance of lightning.0 percent.
Max temperature.....92-95.
Min humidity........9-14 percent.
Wind (20 ft)........Light winds becoming northwest 5 to 8 mph in
                    the afternoon. Gusts up to 16 mph.
Ridgetop wind.......Light winds becoming northwest 7 to 9 mph in
                    the afternoon. Gusts up to 18 mph.
Mixing height.......9200 ft AGL early in the morning.
Transport winds.....Northwest around 9 mph.
Ventilation Index...Poor (40) increasing to excellent (720) in the
                    afternoon.

.SUNDAY NIGHT...

Sky/weather.........Mostly clear (0-10 percent).
CWR.................0 percent.
Chance of lightning.0 percent.
Min temperature.....56-59.
Max humidity........58-63 percent.
Wind (20 ft)........North winds 5 to 12 mph with gusts up to 20 mph,
                    becoming drainage overnight.
Ridgetop wind.......North winds 8 to 14 mph with gusts up to 20 mph,
                    becoming north 5 to 8 mph.
Mixing height.......1000 ft AGL in the evening.
Transport winds.....North around 13 mph.
Ventilation Index...Good (620) decreasing to poor (50) overnight.

.MONDAY...

Sky/weather.........Sunny (0-10 percent).
CWR.................0 percent.
Chance of lightning.0 percent.
Max temperature.....89-92.
Min humidity........11-16 percent.
Wind (20 ft)........Northwest winds 5 to 10 mph. Gusts up to 20 mph.
Ridgetop wind.......Northwest winds 7 to 12 mph. Gusts up to 25 mph.
Mixing height.......7500 ft AGL early in the morning.
Transport winds.....Northwest around 12 mph.
Ventilation Index...Poor (50) increasing to excellent (720) in the
                    afternoon.

$$
Forecaster...NWS Portland
Requested by...Amy Lowe
Type of request...WILDFIRE
.TAG 2517884.0/PDT
.DELDT 07/12/25
.FormatterVersion 2.0.0
.EMAIL amy.e.lowe@usda.gov