405
FNUS76 KPDT 261536
FWSPDT

Spot Forecast for Second Flat...SA CIMT 2
National Weather Service Pendleton OR
836 AM PDT Sun Jul 26 2026

Forecast is based on forecast start time of 1000 MDT on July 26.
***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...

Light west to southwest winds through about 11 am will then pickup to
around 10 mph and occasional gusts around 15 mph for the balance of
the afternoon. Winds will lose gusts in the evening and then switch out
of the north after 9 or 10 pm peaking at around 10 to 15 mph through
midnight before weakening down valley overnight to 6 mph. NO Thunderstorms
through the period. This Afternoon`s RH around 10% will improve only to
50% Tonight.


.REST OF TODAY...

Sky/weather.........Sunny (0-10 percent). Smoke.
CWR.................0 percent.
Chance of lightning.0 percent.
Max temperature.....84-87.
Min humidity........9-14 percent.
Wind (20 ft)........Light winds becoming southwest 5 to 10 mph with
                    gusts to around 17 mph in the late morning and
                    afternoon.
Ridgetop wind.......Light winds becoming southwest 7 to 13 mph with
                    gusts to around 17 mph in the late morning and
                    afternoon.
Mixing height.......8900 ft AGL.
Transport winds.....Southwest 7 to 15 mph increasing to 17 to 20
                    mph late in the afternoon.
Ventilation Index...Low (40-50) increasing to very high (1050) in
                    the afternoon.

TIME (MDT)      11 AM  1 PM   3 PM   5 PM   7 PM   9 PM
Chc of ltng (%).0      0      0      0      0      0
Temp............73     78     82     85     85     80
RH..............32     23     17     14     13     16
20 ft wind......SW 6   SW 8   SW 10  SW 10  SW 8   W 8
20 ft wind gust.10     13     16     17     14     14

.TONIGHT...

Sky/weather.........Mostly clear (5-15 percent). Smoke.
CWR.................0 percent.
Chance of lightning.1 percent.
Min temperature.....49-52.
Max humidity........63-70 percent.
Wind (20 ft)........West winds 5 to 10 mph shifting to the
                    northwest 5 to 13 mph with gusts to around 17
                    mph in the evening. Wind shifting out of the
                    north after midnight and weakening to light.
Ridgetop wind.......West winds 6 to 12 mph shifting to the
                    northwest 7 to 13 mph with gusts to around 15
                    mph in the evening. Wind shifting out of the
                    north after midnight and weakening to light.
Mixing height.......500 ft AGL in the evening and overnight.
Transport winds.....Southwest around 17 mph shifting to the north
                    10 to 17 mph early in the evening.
Ventilation Index...Moderate (400-460) decreasing to low (60)
                    overnight.

$$
Forecaster...Russell
Requested by...Michael Keys
Type of request...WILDFIRE
.TAG 2618286.0/PDT
.DELDT 07/26/26
.FormatterVersion 2.0.0
.EMAIL michael_keys@firenet.gov