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

