380
FNUS76 KPDT 261337
FWSPDT

Spot Forecast for WUI...Yakama Agency
National Weather Service Pendleton OR
637 AM PDT Thu Jun 26 2025

Forecast is based on ignition time of 0900 PDT on June 26.
***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...Starting out mostly sunny today, becoming cloudier in the
afternoon as a weak system passes through. Winds shifting westerly this
afternoon and gusting to around 20 mph through early this evening. Minimum
humidity values in the 20s for the next few days with moderate to good
overnight recoveries. No rain expected.

.TODAY...

Sky/weather.........Mostly sunny (30-40 percent) then becoming
                    mostly cloudy (80-90 percent).
CWR.................0 percent.
Chance of lightning.1 percent.
Max temperature.....81-84.
Min humidity........24-29 percent.
Wind (20 ft)........North winds 5 to 7 mph shifting to the south 5
                    to 8 mph late in the morning, then shifting to
                    the west 7 to 14 mph with gusts up to 20 mph
 in the afternoon.
Ridgetop wind.......
Mixing height.......7700 ft AGL.
Transport winds.....West 5 to 15 mph.
Ventilation Index...Poor (110) increasing to good (700) in the
                    afternoon.

TIME (PDT)      9 AM   11 AM  1 PM   3 PM   5 PM   7 PM
Chc of ltng (%).0      0      0      0      0      0
Temp............67     75     79     79     79     76
RH..............49     38     32     29     30     32
20 ft wind......N 6    S 8    S 8    W 12   W 14   W 14
20 ft wind gust.7      13     13     18     19     19

.TONIGHT...

Sky/weather.........Cloudy (85-95 percent) then becoming partly
                    cloudy (30-40 percent).
CWR.................0 percent.
Chance of lightning.1 percent.
Min temperature.....52-55.
Max humidity........68-73 percent.
Wind (20 ft)........West winds 7 to 14 mph shifting to the south 5
                    to 6 mph early in the morning.
Mixing height.......900 ft AGL.
Transport winds.....West 5 to 14 mph.
Ventilation Index...Fair (360) decreasing to poor (50) overnight.

.FRIDAY...

Sky/weather.........Mostly sunny (25-35 percent).
CWR.................0 percent.
Chance of lightning.0 percent.
Max temperature.....80-83.
Min humidity........26-31 percent.
Wind (20 ft)........South winds 5 to 7 mph shifting to the west 5
                    to 11 mph early in the morning.
Mixing height.......8100 ft AGL.
Transport winds.....West 5 to 10 mph.
Ventilation Index...Poor (90) increasing to good (550) in the
                    afternoon.

$$
Forecaster...NWS Portland
Requested by...FMO
Type of request...PRESCRIBED
.TAG 2516728.0/PDT
.DELDT 06/26/25
.FormatterVersion 2.0.0
.EMAIL don_jones@yakama.com