843
FNUS76 KPDT 161505
FWSPDT

Spot Forecast for RESERVIOR...ODF
National Weather Service Pendleton OR
805 AM PDT Thu Jul 16 2026

Forecast is based on forecast start time of 0800 PDT on July 16.
***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...Overall threat for storms/lightning has diminished
down to 5-10% this afternoon with the concerns today east and
northeast of the wildfire. Some isolated cu/building cu this
afternoon, otherwise mostly sunny with good mixing. A weak front
will arrive late today causing winds to shift and ramp up late
this afternoon with winds then lessening after midnight.

.TODAY...

Sky/weather.........Mostly Sunny (5-15 percent).
CWR.................0 percent.
Chance of lightning.5 percent.
Max temperature.....82-85.
Min humidity........28-33 percent.
Wind (20 ft)........Light winds 1 to 3 mph becoming southwest 5 to
                    7 mph late in the morning, shifting to the
                    northwest 12 to 15 mph with gusts 20 to 25 mph
                    around 1400-1700.
Ridgetop wind.......Southwest around 5 mph shifting to the northwest
                    around 15 mph in the afternoon.
Mixing height.......6100 ft AGL.
Transport winds.....South around 5 mph becoming around 10 mph late in
                    in the morning, shifting to the northwest around
                    15 mph late in the afternoon.
Ventilation Index...High (510).

TIME (PDT)      8 AM   10 AM  NOON   2 PM   4 PM   6 PM
Chc of ltng (%).0      0      0      0      0      0
Temp............63     70     77     80     80     77
RH..............62     50     41     33     33     33
20 ft wind......SE 4   SW     W 8    NW 11  NW 15  NW 15
20 ft wind gust.              12     16     19     20

.TONIGHT...

Sky/weather.........Clear (0-10 percent).
CWR.................0 percent.
Chance of lightning.0 percent.
Min temperature.....Around 50.
Max humidity........64-69 percent.
Wind (20 ft)........Northwest winds 13 to 17 mph with gusts up to
                    25 mph initially becoming north 5 to 10 mph
                    after 2300. Light terrain driven winds 2 to 4 mph
                    in the early morning.
Ridgetop wind.......Northwest 15 to 20 mph becoming north around 10 mph
                    by 2300, then light winds 1 to 3 mph in the early
                    morning.
Mixing height.......1300 ft AGL in the evening.
Transport winds.....North 9 to 16 mph decreasing to around 5 mph
                    overnight, then becoming light southwest winds
                    3 to 5 mph by early in the morning.
Ventilation Index...Moderate (330) decreasing to low (30)
                    overnight.

.FRIDAY...

Sky/weather.........Sunny (0-10 percent).
CWR.................0 percent.
Chance of lightning.0 percent.
Max temperature.....83-86.
Min humidity........13-18 percent.
Wind (20 ft)........Light winds 2 to 4 mph becoming northwest 7 to 13
                    mph late in the morning.
Ridgetop wind.......Light winds becoming northwest winds around 10 mph.
Mixing height.......6900 ft AGL.
Transport winds.....Light winds becoming southwest 6 to 12 mph
                    late morning, then shifting to the northwest
                    around 15 mph late in the afternoon.
Ventilation Index...Low (30) increasing to moderate (440) in the
                    afternoon.

$$
Forecaster...Townsend
Requested by...Rachael Herkamp
Type of request...WILDFIRE
.TAG 2617473.0/PDT
.DELDT 07/16/26
.FormatterVersion 2.0.0
.EMAIL RACHAEL.HERKAMP@ODF.OREGON.GOV,orcoc@firenet.gov