826
FNUS76 KPDT 082128
FWSPDT

Spot Forecast for Trapper...USFS
National Weather Service Pendleton OR
228 PM PDT Mon Jun 8 2026

Forecast is based on forecast start time of 1500 PDT on June 08.
***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...Breezy winds will decrease this evening and overnight
below ridge tops, but are expected to increase again from the west
by mid to late tomorrow morning. Shower chances will increase through
tonight, with best chance of isolated thunderstorms late tomorrow
morning through the afternoon. Thunderstorms will be capable of heavy
downpours and gusty, erratic winds.

.REST OF TODAY...

Sky/weather.........Mostly cloudy (75-85 percent). Chance of
                    showers late in the afternoon.
CWR.................0 percent increasing to 21 percent late in the
                    afternoon.
Chance of lightning.4 percent.
Max temperature.....Around 70.
Min humidity........26-31 percent.
Wind (20 ft)........Southwest winds 6 to 12 mph with gusts to
                    around 18 mph.
Ridgetop wind.......South winds 8 to 14 mph with gusts up to
25 mph.
Mixing height.......7400 ft AGL.
Transport winds.....Southwest 18 to 21 mph.
Ventilation Index...Very high (1050).

TIME (PDT)      3PM 4PM 5PM 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM
Chc of ltng (%).0   0   0   0   0   10  10  10  20  20  20  10
Temp............67  66  66  65  62  59  56  54  53  51  51  51
RH..............35  37  39  43  49  58  66  73  81  84  86  87
20 FT wind dir..S   SW  SW  SW  SW  SW  SW  SW  SW  SW  SW  SW
20 FT wind spd..10  8   8   7   7   6   6   6   6   6   6   7
20 FT wind gust.18  18  17  14  14  13  13  11  12  13  14  17

.TONIGHT...

Sky/weather.........Mostly cloudy (80-90 percent). Rain showers and
                    slight chance of thunderstorms.
CWR.................21 percent increasing to 80 percent late in the
                    evening.
Chance of lightning.16 percent.
Min temperature.....Around 50.
Max humidity........92-97 percent.
Wind (20 ft)........Southwest winds 5 to 8 mph. Gusts up to 17 mph
                    overnight. Gusty and erratic winds expected
                    near thunderstorms late in the evening.
Ridgetop wind.......Southwest winds 9 to 14 mph with gusts up to
26 mph.
Mixing height.......1200 ft AGL.
Transport winds.....Southwest 14 to 18 mph increasing to west 25 to
                    28 mph overnight.
Ventilation Index...Moderate (430) decreasing to moderate (270)
                    overnight.

.TUESDAY...

Sky/weather.........Partly sunny (65-75 percent). Rain showers in
                    the morning, then rain showers likely in the
                    afternoon.
CWR.................74 percent decreasing to 8 percent late in the
                    morning.
Chance of lightning.14 percent.
Max temperature.....Around 60.
Min humidity........62-67 percent.
Wind (20 ft)........Southwest winds 6 to 11 mph shifting to the west
8 to 14 mph with gusts to around 26 mph after
8AM.
Ridgetop wind.......Southwest winds 9 to 14 mph with gusts up to 26
mph increasing to 16 to 22 mph with gusts up to
35 mph after 8AM.
Mixing height.......4300 ft AGL.
Transport winds.....West 28 to 29 mph.
Ventilation Index...High (590) increasing to very high (990) in the
                    afternoon.

$$
Forecaster...Lawhorn
Requested by...Incident Commander
Type of request...WILDFIRE
.TAG 2615097.4/PDT
.DELDT 06/08/26
.FormatterVersion 2.0.0
.EMAIL orbmc@firenet.gov