284
FNUS76 KPDT 151104
FWSPDT

Spot Forecast for Dead Mans Pass Pile Rx...Bureau of Indian Affairs - Umatilla Agency
National Weather Service Pendleton OR
304 AM PST Thu Jan 15 2026

Forecast is based on ignition time of 0700 PST on January 15.
***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.

.DISCUSSION...High pressure will continue to prevail over the
region, making for light winds and poor ventilation. This pattern
is expected to persist through most of the next week, with a low
cloud layer potentially encroaching upon the site by Friday.

.TODAY...

Sky/weather.........Sunny (10-20 percent).
CWR.................0 percent.
Chance of lightning.0 percent.
Max temperature.....43-46.
Min humidity........56-61 percent.
Wind (20 ft)........Southeast winds around 5 mph early, becoming
                    North-Northwest by the afternoon.
Ridgetop wind.......Northeast winds 5 to 10 mph.
Mixing height.......Near-surface.
Transport winds.....Northwest around 6 mph.
Ventilation Index...Poor (30).

TIME (PST)      7 AM   9 AM   11 AM  1 PM   3 PM   5 PM
Chc of ltng (%).0      0      0      0      0      0
Temp............36     37     40     41     42     38
RH..............67     67     65     67     68     77
20 ft wind......SE 4   S 4    N 4    N 4    N 4    NE 4
20 ft wind gust.5      5      5      6      6      5

.TONIGHT...

Sky/weather.........Mostly clear (15-25 percent).
CWR.................0 percent.
Chance of lightning.0 percent.
Min temperature.....30-33.
Max humidity........74-79 percent.
Wind (20 ft)........North-Northwest around 5 mph.
Ridgetop wind.......Northeast around 5 to 8 mph.
Mixing height.......Near-surface.
Transport winds.....North-Northwest around 5 mph.
Ventilation Index...Poor (30).

.FRIDAY...

Sky/weather.........Partly cloudy (30-40 percent).
CWR.................0 percent.
Chance of lightning.0 percent.
Max temperature.....36-39.
Min humidity........66-71 percent.
Wind (20 ft)........North around 5 mph.
Ridgetop wind.......Northeast around 6 mph.
Mixing height.......Near-surface.
Transport winds.....North around 5 mph.
Ventilation Index...Poor (30).

$$
Forecaster...Evans
Requested by...Tristan Spencer
Type of request...PRESCRIBED
.TAG 2528903.2/PDT
.DELDT 01/15/26
.FormatterVersion 2.0.0
.EMAIL tristan.spencer@bia.gov