412
FNUS76 KPDT 091302
FWSPDT

Spot Forecast for Trapper...USFS
National Weather Service Pendleton OR
602 AM PDT Tue Jun 9 2026

Forecast is based on forecast start time of 0700 PDT on June 09.
***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...Winds will become breezy to windy along surrounding ridgetops
today, but anticipating the burn site will be sheltered from the strongest winds.
Cool, showery weather and higher RH is expected today as a low-pressure
system moves overhead. There is a very low chance (10 percent) of isolated
thunderstorms today. Showers are likely overnight into Wednesday morning, with
another day of cool temperatures.

.REST OF TODAY...

Sky/weather.........Mostly cloudy (60-90 percent). Rain showers likely in the
                    morning. Chance of rain showers and very low chance of
                    thunderstorms in the afternoon.
CWR.................40 percent early morning, decreasing to 15 percent
                    in the afternoon.
Chance of lightning.10 percent.
Max temperature.....60-63.
Min humidity........60-65 percent.
Wind (20 ft)........Southwest to west winds 4-9 mph with gusts of 17-22 mph.
                    Gusty and erratic winds near any thunderstorms that develop.
Ridgetop wind.......Southwest to west winds 12-17 mph with gusts of 25-40 mph.
                    Gusty and erratic winds near any thunderstorms that develop.
Mixing height.......Increasing to 3500-4000 ft AGL by afternoon.
Transport winds.....West 20-25 mph.
Ventilation Index...Increasing to high (650) by afternoon.

TIME (PDT)      7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM 6PM
Chc of ltng (%).5   5   5   5   5   5   10  10  10  10  10  5
Temp............47  48  49  51  51  53  54  55  60  61  61  59
RH..............91  94  95  94  94  90  84  79  74  69  66  64
20 FT wind dir..SW  SW  SW  SW  W   W   W   W   W   W   W   W
20 FT wind spd..5   6   7   8   8   7   7   7   8   7   7   7
20 FT wind gust.17  17  20  20  20  20  20  20  20  18  18  17

.TONIGHT...

Sky/weather.........Partly cloudy (25-45 percent) then becoming
                    mostly cloudy (65-80 percent). Chance of rain
                    showers in the evening, then rain showers
                    likely overnight.
CWR.................5 percent in the evening, then 35 percent overnight.
Chance of lightning.5 percent.
Min temperature.....41-44.
Max humidity........90-95 percent.
Wind (20 ft)........Southwest to west winds 3-7 mph with gusts of 17-22 mph.
Ridgetop wind.......Southwest to west winds 10-15 mph with gusts of 20-30 mph.
Mixing height.......Decreasing to 700-1200 ft AGL overnight.
Transport winds.....West 20-25 mph.
Ventilation Index...Very high (770) decreasing to moderate (360)
                    overnight.

.WEDNESDAY...

Sky/weather.........Mostly cloudy (70-80 percent) then becoming
                    sunny (15-25 percent). Rain showers likely
                    early in the morning, then chance of rain
                    showers late morning.
CWR.................20 percent in the morning, 5 percent in the afternoon.
Chance of lightning.5 percent.
Max temperature.....62-65.
Min humidity........45-50 percent.
Wind (20 ft)........West winds 4-8 mph with gusts of 10-15 mph.
Ridgetop wind.......West winds 8-12 mph with gusts of 15-20 mph.
Mixing height.......Increasing to 5000-5500 ft AGL by afternoon.
Transport winds.....West 15-20 mph.
Ventilation Index...Moderate (400) increasing to very high (710) in
                    the afternoon.

$$
Forecaster...Plunkett
Requested by...Incident Commander
Type of request...WILDFIRE
.TAG 2615097.5/PDT
.DELDT 06/09/26
.FormatterVersion 2.0.0
.EMAIL orbmc@firenet.gov