969
FNUS76 KPDT 130052
FWSPDT

Spot Forecast for Akawa Butte...USFS
National Weather Service Pendleton OR
552 PM PDT Wed Aug 12 2026

Forecast is based on forecast start time of 0600 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...Dry conditions persist through the next few days
with minimum relative humidities dropping to near/at 30 percent
during peak heating. Winds in general will be light with some
diurnal driven speeds with shifts from the northeast to northwest.
Overnight wind values will be mostly light and variable driven by
terrain. Otherwise, overnight recoveries will be good to excellent
ranging from 70 to 75 percent.

.THURSDAY...

Sky/weather.........Sunny (15-25 percent). Patchy smoke.
CWR.................0 percent.
Chance of lightning.9 percent.
Max temperature.....75-80.
Min humidity........30-35 percent.
Wind (20 ft)........Light winds becoming northeast 5 to 10 mph by
                    10 AM, then shifting to the north 5 to
                    10 mph by 3 PM.
Ridgetop wind.......Light winds becoming northeast 7 to 12 mph by
                    10 AM, then shifting to the north 7 to
                    12 mph by 3 PM.
Mixing height.......7100 ft AGL early in the morning.
Transport winds.....Light winds becoming northeast 5 to 10 mph
                    late in the morning, then shifting to the north
                    10 to 15 mph late in the afternoon.
Ventilation Index...Low (30) increasing to moderate (290-310) in
                    the afternoon.

TIME (PDT)      6 AM   8 AM   10 AM  NOON   2 PM   4 PM
Chc of ltng (%).0      0      0      0      0      0
Temp............47     52     65     72     77     77
RH..............83     77     58     45     33     33
20 ft wind......NW 3   N 3    NE 4   NE 6   NE 7   N 6
20 ft wind gust.5      5      6      10     12     12

.THURSDAY NIGHT...

Sky/weather.........Partly cloudy (35-45 percent). Patchy smoke
                    early in the evening.
CWR.................0 percent.
Chance of lightning.9 percent.
Min temperature.....47-52.
Max humidity........70-75 percent.
Wind (20 ft)........Northwest winds 5 to 10 mph shifting to the west
                    by 11 PM, then becoming light by 3 AM.
Ridgetop wind.......Northwest winds 7 to 12 mph shifting to the west
                    by 11 PM, then becoming light by 3 AM.
Mixing height.......900 ft AGL in the evening then 500 ft AGL
                    overnight.
Transport winds.....Northwest 7 to 12 mph.
Ventilation Index...Moderate (320-350) decreasing to low (30)
                    overnight.

.FRIDAY...

Sky/weather.........Sunny (20-30 percent).
CWR.................0 percent.
Chance of lightning.8 percent.
Max temperature.....77-82.
Min humidity........29-34 percent.
Wind (20 ft)........Light winds becoming northeast 5 to 10 mph by 11 AM
                    then becoming northwest 3 to 8 mph by 3 PM.
Ridgetop wind.......Light winds becoming northeast 7 to 12 mph by 11 AM
                    then becoming northwest 5 to 10 mph by 3 PM.
Mixing height.......8700 ft AGL.
Transport winds.....Northwest 5 to 10 mph shifting to the north
                    5 to 10 mph early in the morning, then
                    shifting to the southeast 5 to 10 mph late in
                    the morning shifting to the southwest late in
                    the afternoon.
Ventilation Index...Low (30) increasing to moderate (230-360) in
                    the afternoon.

$$
Forecaster...Day
Requested by...Sara Burns
Type of request...WILDFIRE
.TAG 2619578.0/PDT
.DELDT 08/12/26
.FormatterVersion 2.0.0
.EMAIL sara.burns@usda.gov