115
FNUS76 KPDT 302313
FWSPDT

Spot Forecast for SCENIC FIRE...WALLA WALLA COUNTY FIRE DISTRICT 4
National Weather Service Pendleton OR
413 PM PDT Wed Jul 30 2025

Forecast is based on forecast start time of 1700 PDT on July 30.
***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.

...HEAT ADVISORY IN EFFECT UNTIL 11 PM PDT THURSDAY...

.DISCUSSION...

.REST OF TODAY...Dry conditions are expect through tonight.

There is a slight (20%) chance of showers and thunderstorms
Thursday afternoon.  Winds will be out of the north the rest of
today then shift to the east and southeast this evening before
becoming south tonight then more southwest to west on Thursday.

MIN RH values will be 10 to 15 percent today and 20 to 25 percent
on Thursday with moderate recoveries overnight.


Sky/weather.........Mostly sunny (25-35 percent).
CWR.................0 percent.
Chance of lightning.14 percent.
Max temperature.....100-103.
Min humidity........10-15 percent.
Wind (20 ft)........North winds 5 to 8 mph.
Ridgetop wind.......North around 10 mph.
Mixing height.......6000 ft AGL.
Transport winds.....North around 8 mph.
Ventilation Index...Fair (200).

TIME (PDT)      5PM 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM
Chc of ltng (%).10  10  10  10  10  10  0   0   0   0   0   0
Temp............98  99  96  92  81  81  78  77  76  75  72  71
RH..............16  16  18  21  29  28  30  29  31  32  37  39
20 FT wind dir..N   N   N   E   E   E   SE  SE  SE  S   S   S
20 FT wind spd..8   8   8   8   8   8   8   8   8   8   8   8
20 FT wind gust.10  10  10

.TONIGHT...

Sky/weather.........Partly cloudy (20-30 percent).
CWR.................0 percent.
Chance of lightning.14 percent.
Min temperature.....Around 70.
Max humidity........37-42 percent.
Wind (20 ft)........North winds 5 to 8 mph shifting to the east
                    early in the evening, then shifting to the
                    southeast late in the evening shifting to the
                    south overnight.
Ridgetop wind.......North 5 to 10 mph.
Mixing height.......900 ft AGL.
Transport winds.....North 7 to 8 mph shifting to the south 7 to 10
                    mph late in the evening.
Ventilation Index...Fair (200) decreasing to poor (40) overnight.

.THURSDAY...

Sky/weather.........Mostly sunny (30-40 percent). Slight chance of
                    showers and thunderstorms late in the
                    afternoon.
CWR.................3 percent.
Chance of lightning.21 percent.
Max temperature.....Around 100.
Min humidity........20-25 percent.
Wind (20 ft)........Southwest winds 5 to 8 mph shifting to the west
                    5 to 10 mph late in the morning. Gusty and
                    erratic winds expected near thunderstorms late
                    in the afternoon.
Ridgetop wind.......North winds 5 to 10 mph in the early morning,
                    shifting to the southwest by late morning.
Mixing height.......5800 ft AGL.
Transport winds.....South around 10 mph shifting to the west 8 to 9
                    mph late in the morning.
Ventilation Index...Poor (130) increasing to fair (370) in the
                    afternoon.

$$
Forecaster...Nierenberg
Requested by...BRANDON MCKINNEH
Type of request...WILDFIRE
.TAG 2518869.2/PDT
.DELDT 07/30/25
.FormatterVersion 2.0.0
.EMAIL jgolden@wwfire4.com,bmckinney@wwfire4.com