460
FNUS76 KPDT 141252
FWSPDT

Spot Forecast for Starvation Flat...Yakama Agency
National Weather Service Pendleton OR
552 AM PDT Tue Oct 14 2025

Forecast is based on ignition time of 0800 PDT on October 14.
***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 northerly flow aloft will bring clear skies
to the burn area, allowing overnight lows to become cold. Winds
will be from the northeast today, but becoming light overnight
from the northwest and then variable tomorrow afternoon. With
drier conditions developing, daytime RHs will dip into the low
40s today and low 30s tomorrow, with good to excellent overnight
recovery. Mixing heights will be fairly shallow in the afternoons,
while winds aloft will be fairly weak, making for poor
ventilation through tomorrow.

.REST OF TODAY...

Sky/weather.........Sunny (0-10 percent).
CWR.................0 percent.
Chance of lightning.0 percent.
Max temperature.....50-53.
Min humidity........40-45 percent.
Wind (20 ft)........Northeast winds 5 to 10 mph.
Ridgetop wind.......Northeast winds 5 to 10 mph.
Mixing height.......1900 ft AGL late in the morning.
Transport winds.....Northeast 6 to 13 mph.
Ventilation Index...Poor (30) increasing to poor (170) in the
                    afternoon.

TIME (PDT)      8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM 6PM 7PM
Chc of ltng (%).0   0   0   0   0   0   0   0   0   0   0   0
Temp............30  35  44  46  47  50  50  50  50  49  45  42
RH..............87  77  58  52  50  45  45  46  45  46  53  61
20 FT wind dir..NE  NE  NE  NE  NE  NE  NE  NE  NE  NE  NE  NE
20 FT wind spd..11  11  11  11  11  11  8   8   8   6   6   6
20 FT wind gust.16  16  16  17  17  17  14  14  14  13  13  13

.TONIGHT...

Sky/weather.........Mostly clear (5-15 percent). Widespread frost
                    early in the evening.
CWR.................0 percent.
Chance of lightning.0 percent.
Min temperature.....Around 30.
Max humidity........67-72 percent.
Wind (20 ft)........Northeast winds 5 to 8 mph shifting to the north
4 to 7 mph after 8PM, then shifting to the
northwest 3 to 6 mph after 2AM.
Ridgetop wind.......Northeast winds 5 to 8 mph shifting to the north
after 8PM, then shifting to the northwest
4 to 7 mph after 2AM.
Mixing height.......Near surface.
Transport winds.....North 6 to 7 mph shifting to the northwest 5 to
                    6 mph overnight.
Ventilation Index...Poor (30).

.WEDNESDAY...

Sky/weather.........Sunny (5-15 percent).
CWR.................0 percent.
Chance of lightning.0 percent.
Max temperature.....Around 60.
Min humidity........30-35 percent.
Wind (20 ft)........Northwest winds 3 to 6 mph shifting to the west
                    around 8AM, then becoming light and variable
after 11AM.
Ridgetop wind.......Northwest winds 4 to 7 mph.
Mixing height.......2300 ft AGL late in the morning.
Transport winds.....Northwest 4 to 7 mph.
Ventilation Index...Poor (30) increasing to poor (50) in the
                    afternoon.

$$
Forecaster...Lawhorn
Requested by...Dan Sims Fuels Planner
Type of request...PRESCRIBED
.TAG 2523422.0/PDT
.DELDT 10/14/25
.FormatterVersion 2.0.0
.EMAIL Dan_sims@yakama.com