498
FNUS76 KPDT 080030
FWSPDT

Spot Forecast for CM RICE FIRE...WALLA WALLA COUNTY FIRE DISTRICT 4
National Weather Service Pendleton OR
530 PM PDT Mon Jul 7 2025

Forecast is based on forecast start time of 1700 PDT on July 07.
***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 FROM 11 AM TO 9 PM PDT TUESDAY...
...FIRE WEATHER WATCH IN EFFECT FROM WEDNESDAY MORNING THROUGH
WEDNESDAY EVENING...

.DISCUSSION...Hot and dry conditions continue through midweek as a
ridge of high pressure remains over the region. Temperatures are
expected to peak on Tuesday, before a weak front moves through the
area Tuesday night into Wednesday, causing temperatures to cool
and winds to increase out of the W and SW. On Wednesday there is a
75% chance of wind gusts exceeding 30 mph.


.REST OF TODAY...

Sky/weather.........Sunny (5-15 percent).
CWR.................0 percent.
Chance of lightning.0 percent.
Max temperature.....95-98.
Min humidity........11-16 percent.
Wind (20 ft)........West winds 5 to 6 mph with gusts up to 12 mph.
Mixing height.......5400 ft AGL.
Transport winds.....Southwest around 5 mph.
Ventilation Index...Poor (80).

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............95  94  93  89  82  78  75  72  69  67  66  65
RH..............17  17  18  23  28  31  33  38  41  42  44  47
20 FT wind dir..W   W   W   N   N   N   E   E   E   SE  SE  SE
20 FT wind spd..6   6   6   5   5   5   6   6   6   7   7   7
20 FT wind gust.7   7   7

.TONIGHT...

Sky/weather.........Mostly clear (0-10 percent).
CWR.................0 percent.
Chance of lightning.0 percent.
Min temperature.....63-66.
Max humidity........44-49 percent.
Wind (20 ft)........West winds 5 to 7 mph shifting to the north
                    early in the evening, then shifting to the
                    southeast 5 to 8 mph late in the evening.
Mixing height.......500 ft AGL.
Transport winds.....Southwest around 5 mph early in the evening
                    becoming southeast 6 to 8 mph late in the
                    evening.
Ventilation Index...Poor (80) decreasing to poor (30) overnight.

.TUESDAY...

Sky/weather.........Sunny (0-10 percent).
CWR.................0 percent.
Chance of lightning.1 percent.
Max temperature.....101-104.
Min humidity........8-13 percent.
Wind (20 ft)........South winds 5 to 10 mph shifting to the
                    southwest 6 to 12 mph with gusts to 20 mph
                    late in the morning.
Mixing height.......5300 ft AGL.
Transport winds.....Southwest 9 to 12 mph.
Ventilation Index...Poor (100) increasing to fair (430) in the
                    afternoon.

$$
Forecaster...NWS Portland
Requested by...BRANDON MCKINNEY
Type of request...WILDFIRE
.TAG 2517509.0/PDT
.DELDT 07/07/25
.FormatterVersion 2.0.0
.EMAIL bmckinney@wwfire4.com,imt@wwfire4.com