101
FNUS76 KPDT 022326
FWSPDT

Spot Forecast for COLD SPRINGS FIRE...WALLA WALLA COUNTY FIRE DISTRICT 4
National Weather Service Pendleton OR
426 PM PDT Wed Jul 2 2025

Forecast is based on forecast start time of 1700 PDT on July 02.
***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.

...RED FLAG WARNING IN EFFECT UNTIL 9 PM PDT THIS EVENING FOR
WIND AND LOW RELATIVE HUMIDITY...

.DISCUSSION...Hot, dry, and breezy conditions will persist through
this evening. Winds will slacken some in magnitude overnight, but
confidence is high (>80%) that winds will not be light (<5 kts). RH
recovery is anticipated to be moderate. Southwest to west winds and
low relative humidity is forecast again Thursday.

.REST OF TODAY...

Sky/weather.........Sunny (10-20 percent).
CWR.................0 percent.
Chance of lightning.1 percent.
Max temperature.....87-90.
Min humidity........15-20 percent.
Wind (20 ft)........West-southwest winds 10-20 mph with gusts of
                    20-30 mph.
Ridgetop wind.......West-southwest winds 15-25 mph with gusts of
                    25-35 mph.
Mixing height.......3500-4000 ft AGL.
Transport winds.....Southwest 20-25 mph.
Ventilation Index...Fair (390).

TIME (PDT)      5PM 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM
Chc of ltng (%).0   0   0   0   0   0   0   0   0   0   0   0
Temp............88  86  82  79  73  70  68  65  63  61  60  59
RH..............17  22  25  29  37  42  45  48  51  55  58  60
20 FT wind dir..W   W   W   SW  SW  SW  SW  SW  SW  SW  SW  SW
20 FT wind spd..20  20  20  15  15  15  12  12  12  12  12  12
20 FT wind gust.30  30  30  25  25  25  20  20  20  20  20  20

.TONIGHT...

Sky/weather.........Mostly clear (5-15 percent).
CWR.................0 percent.
Chance of lightning.1 percent.
Min temperature.....57-60.
Max humidity........58-63 percent.
Wind (20 ft)........Southwest winds 8-12 mph with gusts of 15-20 mph.
Ridgetop wind.......Southwest winds 10-15 mph with gusts of 15-25 mph.
Mixing height.......3400 ft AGL early in the evening.
Transport winds.....Southwest 15 to 24 mph.
Ventilation Index...Fair (390) decreasing to poor (30) overnight.

.THURSDAY...

Sky/weather.........Sunny (10-20 percent).
CWR.................0 percent.
Chance of lightning.0 percent.
Max temperature.....83-86.
Min humidity........14-19 percent.
Wind (20 ft)........Southwest to west winds 8-12 mph with gusts of
                    12-17 mph.
Ridgetop wind.......Southwest to west winds 8-12 mph with gusts of
                    12-17 mph.
Mixing height.......Increasing to 4500-5000 ft AGL late morning.
Transport winds.....Southwest 10-15 mph.
Ventilation Index...Poor (150) increasing to fair (440) in the
                    afternoon.

$$
Forecaster...Plunkett
Requested by...BRANDON MCKINNEY
Type of request...WILDFIRE
.TAG 2517159.0/PDT
.DELDT 07/02/25
.FormatterVersion 2.0.0
.EMAIL bmckinney@wwfire4.com,imt@wwfire4.com