FNUS76 KPDT 032105

FWSPDT



Spot Forecast for WASTEWATER FIRE...SUNCOMM

National Weather Service Pendleton OR

205 PM PDT Thu Jul 3 2025



Forecast is based on forecast start time of 1400 PDT on July 03. 

***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 weak system approaches from the south, allowing

for winds to shift from the southeast to the north later this

afternoon as winds increase after 7 PM this evening. Winds will

slowly subside into the early morning hours on Friday with

moderate overnight humidity recoveries. Friday morning lows 

expected 5 degrees colder than on Thursday, with clouds increasing 

overnight over the fire area.





.REST OF TODAY...



Sky/weather.........Sunny (0-10 percent). 

CWR.................0 percent. 

Chance of lightning.0 percent. 

Max temperature.....Around 90. 

Min humidity........10-15 percent. 

Wind (20 ft)........Southeast winds 2 to 6 mph shifting to the north 

                    7 to 14 mph with gusts up to 20 mph after 5 PM.

Mixing height.......7500 ft AGL. 

Transport winds.....West 7 to 10 mph. 

Ventilation Index...Fair (380). 



TIME (PDT)      2 PM   4 PM   6 PM   8 PM   10 PM  MIDNGT 

Chc of ltng (%).0      0      0      0      0      0      

Temp............85     87     86     82     72     68     

RH..............18     15     18     23     33     38     

20 ft wind......SE 3   SE 3   N 9    N 12   N 11   N 10   

20 ft wind gust.10     10     15     17     17     15     



.TONIGHT...



Sky/weather.........Partly cloudy (25-35 percent) then becoming 

                    mostly cloudy (55-65 percent) after 2 AM. 

CWR.................0 percent. 

Chance of lightning.2 percent. 

Min temperature.....Around 60. 

Max humidity........40-45 percent. 

Wind (20 ft)........North winds 7 to 14 mph, peaking between 7 PM

                    midnight.

Mixing height.......500 ft AGL. 

Transport winds.....North 8 to 17 mph. 

Ventilation Index...Good (520) decreasing to poor (60) overnight. 



$$

Forecaster...Callihan

Requested by...SUNCOMM

Type of request...WILDFIRE

.TAG 2517237.0/PDT

.DELDT 07/03/25

.FormatterVersion 2.0.0

.EMAIL megan.goss@yakimawa.gov