539
FNUS76 KPDT 131346
FWSPDT

Spot Forecast for DMPRC Monitoring...Yakima Training Center Fire Department
National Weather Service Pendleton OR
646 AM PDT Thu Aug 13 2026

Forecast is based on forecast start time of 0700 PDT on August 13.
***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 transport wind
   multiplied by the mixing height in 100`s of ft.
   Categories are a generalized indicator only:
   low (< 200), moderate (200-500), high (500-700),
   and very high (> 700).                           ***

If you have questions or concerns with this forecast, please
contact our office at (541) 276-8134.

.DISCUSSION...There is a very low (10 percent) chance of showers
and thunderstorms today, highest chances in the afternoon. Winds
from the northeast are anticipated during the day, becoming north
overnight. There is a very low (10 percent) chance of nocturnal
showers and thunderstorms tonight, and another very low (10 percent)
chance Friday.

.REST OF TODAY...

Sky/weather.........Mostly sunny to partly cloudy (5-40 percent).
                    Very low (10 percent) chance of showers and
                    thunderstorms. Areas of smoke.
Chance of pcpn......10 percent.
Chance of lightning.10 percent.
Max temperature.....78-81.
Min humidity........27-32 percent.
Surface winds (mph).Variable winds 3-6 mph early morning, becoming
                    northeast 6-10 mph by mid-morning.
Mixing height.......Increasing to 8000-8500 ft AGL by afternoon.
Transport winds.....Northeast 6-10 mph.

TIME (PDT)      7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM 6PM
Chc of ltng (%).0   0   0   0   0   0   0   0   0   10   10  10
Temp............60  62  65  69  71  74  75  77  78  78  79  77
RH..............68  61  56  50  46  41  38  35  33  32  32  32
Surface wnd dir.VRB VRB NE  NE  NE  NE  NE  NE  NE  NE  NE  N
Surface wnd spd.4   5   6   8   9   9   9   9   9   8   8   8
Surface wnd gst.

.TONIGHT...

Sky/weather.........Mostly clear to partly cloudy (15-45 percent).
                    Very low (10 percent) chance of showers and
                    thunderstorms. Areas of smoke.
Chance of pcpn......10 percent.
Chance of lightning.10 percent.
Min temperature.....60-63.
Max humidity........60-65 percent.
Surface winds (mph).North winds 6-10 mph.
Mixing height.......Decreasing to 300-700 ft AGL overnight.
Transport winds.....North 8-10 mph.

.FRIDAY...

Sky/weather.........Mostly sunny to partly cloudy (10-45 percent).
                    Patchy smoke. Very low (10 percent) chance of
                    showers and thunderstorms in the afternoon.
Chance of pcpn......10 percent.
Chance of lightning.10 percent.
Max temperature.....78-81.
Min humidity........29-34 percent.
Surface winds (mph).Northeast to east winds 6-10 mph shifting to
                    the southeast 5-9 mph in the afternoon.
Mixing height.......Increasing to 8500-9000 ft AGL.
Transport winds.....Northeast 6-10 mph in the morning, turning to
                    the southeast then southwest 4-6 mph early to
                    mid-afternoon, then becoming northwest 4-6 mph
                    late afternoon.

$$
Forecaster...Plunkett
Requested by...Assistant chief Foster
Type of request...OTHER
.TAG 2619582.0/PDT
.DELDT 08/13/26
.FormatterVersion 2.0.0
.EMAIL shayne.c.foster.civ@live.com