FNUS76 KPDT 150739
FWSPDT

Spot Forecast for Sumac 2A...US Forest Service
National Weather Service Pendleton OR
1239 AM PDT Thu Oct 15 2026

Forecast is based on ignition time of 0600 PDT on October 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...Dry conditions will persist over the fire area
through the forecast period. Winds will be generally from the
southeast through the Thursday at 5-8 mph. Daytime relative 
humidity will be in the mid to upper 20% with overnight 
recoveries above 40%. Friday winds will continue from the SE 
and daytime humidity will be in the upper teens to low 20%.

.TODAY...

Sky/weather.........Sunny (0-10 percent). Areas of frost early in 
                    the morning, then patchy frost early in the 
                    morning. 
CWR.................0 percent. 
Chance of lightning.0 percent. 
Max temperature.....63-66. 
Min humidity........24-29 percent. 
Wind (20 ft)........Light east winds becoming southeast around 5 mph 
                    around 1400, then becoming light after 1600. 
Ridgetop wind.......East winds 4 to 6 mph becoming southeast around 
                    5 mph around 1400, then becoming 4 to 6 mph after 
                    1600.  
Mixing height.......2600 ft AGL early in the morning. 
Transport winds.....Southeast around 6 mph. 
Ventilation Index...Low (30) increasing to low (110) in the 
                    afternoon. 

TIME (PDT)      6 AM   8 AM   10 AM  NOON   2 PM   4 PM   
Chc of ltng (%).0      0      0      0      0      0      
Temp............37     37     47     57     61     61     
RH..............75     75     54     38     29     28     
20 ft wind......E 3    E 4    E 4    E 4    SE 5   SE 4   
20 ft wind gust.       5             5      6      5      

.TONIGHT...

Sky/weather.........Mostly clear (10-20 percent). 
CWR.................0 percent. 
Chance of lightning.0 percent. 
Min temperature.....42-45. 
Max humidity........43-48 percent. 
Wind (20 ft)........Light southeast winds becoming 5 to 10 mph 
                    after 1700. 
Ridgetop wind.......Southeast winds 4 to 6 mph becoming 7 to 12
                    mph after 1700.  
Mixing height.......700 ft AGL early in the evening. 
Transport winds.....Southeast 6 to 9 mph. 
Ventilation Index...Low (30). 

.FRIDAY...

Sky/weather.........Mostly sunny (20-30 percent). 
CWR.................0 percent. 
Chance of lightning.0 percent. 
Max temperature.....Around 70. 
Min humidity........15-20 percent. 
Wind (20 ft)........Southeast winds 5 to 8 mph shifting to the 
                    south after 0600. 
Ridgetop wind.......Southeast winds 7 to 10 mph shifting to the 
                    south after 0600. 
Mixing height.......2900 ft AGL early in the morning. 
Transport winds.....South 8 to 10 mph. 
Ventilation Index...Low (40) increasing to moderate (220) in the 
                    afternoon. 

$$
Forecaster...Bennese
Requested by...Ellyse Campbell
Type of request...PRESCRIBED
.TAG 2623741.1/PDT
.DELDT 10/15/26
.FormatterVersion 2.0.0
.EMAIL todd.pederson@usda.gov,andy.hayes@usda.gov,courtney.fent@usda.gov,eaglecapwfm@gmail.com,jeffrey.brink@usda.gov