340
FNUS76 KPDT 152236
FWSPDT

Spot Forecast for Rowe Shingle Coyote and Henry Fires...ODF
National Weather Service Pendleton OR
336 PM PDT Tue Sep 15 2026

Forecast is based on forecast start time of 1800 PDT on September 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 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...There is a low (30 percent) chance of rain showers
overnight that will decrease by morning.  Wednesday during the day will
be dry, then there will be another chance (30-40) percent Thursday morning
with higher chances of showers (50 percent) Thursday afternoon into
Thursday evening. There is also a low chance (<20 percent) of thunderstorms
late Thursday afternoon into Thursday evening.

Winds will be gusty out of the northeast tonight into Wednesday, before decreasing
Wednesday night into Thursday.

MIN RH values will be in the 40 to 60 percent range Wednesday and 45 to 60 percent
range on Thursday, with excellent overnight recoveries.

.TONIGHT...

Sky/weather.........Mostly cloudy (75-85 percent). Chance of rain
                    showers.
CWR.................13 percent decreasing to 0 percent early in the
                    morning.
Chance of lightning.6 percent.
Min temperature.....40-45.
Max humidity........87-100 percent.
Wind (20 ft)........North winds 5 to 15 mph. Gusts up to 20 mph
                    early in the evening then 29 mph in the late
                    evening and overnight.
Ridgetop wind.......North winds 10 to 15 mph with gusts to 20 to 25 mph,
                    becoming northeast by daybreak.
Mixing height.......500 ft AGL.
Transport winds.....Northeast 12 to 14 mph.
Ventilation Index...Moderate (210-270) decreasing to low (60-90)
                    overnight.

TIME (PDT)      6 PM   8 PM   10 PM  MIDNGT 2 AM   4 AM
Chc of ltng (%).0      10     10     0      10     10
Temp............57     52     49     48     47     45
RH..............53     70     79     82     85     88
20 ft wind......N 9    N 7    N 9    N 14   NE 14  N 14
20 ft wind gust.16     14     17     21     22     21

.WEDNESDAY...

Sky/weather.........Mostly sunny (30-40 percent).
CWR.................0 percent.
Chance of lightning.3 percent.
Max temperature.....58-70.
Min humidity........41-58 percent.
Wind (20 ft)........Northeast winds 5 to 13 mph with gusts to
                    around 19 mph.
Ridgetop wind.......Northeast winds 15 to 20 mph, with gusts to 25 mph.
Mixing height.......2900 ft AGL.
Transport winds.....Northeast 12 to 17 mph.
Ventilation Index...Low (90-140) increasing to moderate (430-480)
                    in the afternoon.

.WEDNESDAY NIGHT...

Sky/weather.........Mostly clear (15-25 percent) then becoming
                    mostly cloudy (50-60 percent). Chance of rain
                    showers early in the morning.
CWR.................0 percent increasing to 11 percent early in the
                    morning.
Chance of lightning.3 percent.
Min temperature.....42-48.
Max humidity........75-90 percent.
Wind (20 ft)........Northeast winds up to 10 mph with gusts to
                    around 18 mph becoming light.
Ridgetop wind.......Northeast winds 15 to 20 mph, with gusts to 25 mph,
                    decreasing to 10 to 15 mph by daybreak.
Mixing height.......500 ft.
Transport winds.....Northeast 6 to 15 mph.
Ventilation Index...Low (150-180) decreasing to low (30) overnight.

.THURSDAY...

Sky/weather.........Partly sunny (60-70 percent). Chance of rain
                    showers.
CWR.................11 percent.
Chance of lightning.9 percent.
Max temperature.....60-70.
Min humidity........46-59 percent.
Wind (20 ft)........Light winds becoming northwest 5 to 7 mph late
                    in the morning.
Ridgetop wind.......Northeast wind 10 to 15 mph, decreasing to around 10 mph
                    and becoming north in the afternoon.
Mixing height.......2500 ft AGL.
Transport winds.....North 6 to 12 mph.
Ventilation Index...Low (30) increasing to low (150-180) in the
                    afternoon.

$$
Forecaster...Nierenberg
Requested by...Dana Skelly
Type of request...WILDFIRE
.TAG 2621886.1/PDT
.DELDT 09/15/26
.FormatterVersion 2.0.0
.EMAIL dana.skelly@oregonstate.edu