485
FNUS76 KPDT 172155
FWSPDT

Spot Forecast for Suttle Lake Piles...USFS
National Weather Service Pendleton OR
155 PM PST Mon Nov 17 2025

Forecast is based on ignition time of 1000 PST on November 18.
***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...Dry conditions prevail with light winds throughout the
period. Winds will be light with terrain driven diurnal directions
with slightly stronger winds in the late morning to afternoon hours.
Precip chances are minimal, with slight chances in the early afternoon
Tuesday and another chance in the late afternoon hours Wednesday, which
is just outside the forecast period. Min RH remain in the mid to high 50s
with overnight recoveries remaining excelling in the low to mid 90s.

.TUESDAY...

Sky/weather.........Mostly sunny (40-50 percent). Slight chance of
                    rain (15 to 25 percent) early in the afternoon.
CWR.................0 percent.
Chance of lightning.0 percent.
Max temperature.....45-50.
Min humidity........55-60 percent.
Wind (20 ft)........Light diurnal upsloping winds shifting Northwest
                    at 4 to 9 mph by 10 AM.
Ridgetop wind.......Light winds shifting Northwest at 5 to 10 mph by
                    10 AM.
Mixing height.......2900 ft AGL.
Transport winds.....Northwest 5 to 10 mph shifting to the north
                    late in the afternoon.
Ventilation Index...Poor (100).

TIME (PST)      10A 11A 12P 1PM 2PM 3PM 4PM 5PM 6PM 7PM 8PM 9PM
Chc of ltng (%).0   0   0   0   0   0   0   0   0   0   0   0
Temp............39  43  45  44  46  44  41  39  34  31  29  28
RH..............75  67  60  60  59  63  71  82  89  96  99  99
20 FT wind dir..NW  NW  NW  NW  NW  NW  N   N   N   NW  NW  NW
20 FT wind spd..5   5   5   5   5   5   4   4   4   3   3   3
20 FT wind gust.6   6   6   6   6   6   6   6   6   4   4   4

.TUESDAY NIGHT...

Sky/weather.........Partly cloudy (25-35 percent). Patchy fog in the
                    evening.
CWR.................0 percent.
Chance of lightning.0 percent.
Min temperature.....20-25.
Max humidity........90-95 percent.
Wind (20 ft)........Light diurnal downsloping winds.
Ridgetop wind.......Light and variable winds up to 5 mph.
Mixing height.......1100 ft AGL.
Transport winds.....North around 3 to 7 mph shifting to the southeast
                    5 to 8 mph in the late evening and overnight.
Ventilation Index...Poor (70).

.WEDNESDAY...

Sky/weather.........Mostly sunny (25-35 percent).
CWR.................0 percent.
Chance of lightning.0 percent.
Max temperature.....46-51.
Min humidity........54-59 percent.
Wind (20 ft)........Southeast winds 3 to 8 mph.
Ridgetop wind.......Southeast winds 5 to 10 mph.
Mixing height.......2600 ft AGL.
Transport winds.....Southeast 10 to 15 mph.
Ventilation Index...Poor (130).

$$
Forecaster...Day
Requested by...Kiel Wood
Type of request...PRESCRIBED
.TAG 2526152.0/PDT
.DELDT 11/17/25
.FormatterVersion 2.0.0
.EMAIL Kiel.wood@usda.gov