FNUS76 KPDT 230329
FWSPDT

Spot Forecast for Colwash Fire...West Benton Fire Rescue
National Weather Service Pendleton OR
829 PM PDT Sat Aug 22 2026

Forecast is based on forecast start time of 2100 PDT on August 22. 
***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.

...RED FLAG WARNING IN EFFECT UNTIL 10 PM PDT THIS EVENING...

.DISCUSSION...Winds have decreased from earlier today down to 
5 to 10 mph from the west. A brief period of 15 to 20 mph gusts
is possible, with greatest chances being through the late evening
hours. Winds for rest of the forecast period remain light and, at 
times, variable. Overnight recoveries are expected to be good to 
excellent with humidity levels ranging from 70 to 80 percent. 

.REST OF TONIGHT...

Sky/weather.........Mostly clear (5-15 percent). Patchy blowing 
                    dust late in the evening. 
CWR.................0 percent. 
Chance of lightning.0 percent. 
Min temperature.....52-57. 
Max humidity........75-80 percent. 
Wind (20 ft)........West winds 5 to 10 mph, shifting to the southwest
                    at 5 to 10 mph by 3 AM. 
Ridgetop wind.......West winds 5 to 10 mph, shifting to the southwest
                    at 5 to 10 mph by 3 AM.  
Mixing height.......500 ft AGL late in the evening. 
Transport winds.....West 7 to 12 mph. 
Ventilation Index...Moderate (350) decreasing to low (40) 
                    overnight. 

TIME (PDT)      9 PM   11 PM  1 AM   3 AM   5 AM   7 AM   
Chc of ltng (%).0      0      0      0      0      0      
Temp............75     70     66     61     58     58     
RH..............42     52     61     68     77     81     
20 ft wind......W 11   W 10   W 10  SW 8   SW 7   SW 5   
20 ft wind gust.14     14     13     13     10     8      

.SUNDAY...

Sky/weather.........Sunny (0-10 percent). 
CWR.................0 percent. 
Chance of lightning.0 percent. 
Max temperature.....83-86. 
Min humidity........32-37 percent. 
Wind (20 ft)........Southwest winds 5 to 10 mph, shifting to the northwest at
                    5 to 10 mph by 10 AM. Winds decrease to 3 to 8 mph from
                    the north by noon.
Ridgetop wind.......Southwest winds 7 to 12 mph, shifting to the northwest at
                    7 to 12 mph by 10 AM. Winds decrease to 5 to 10 mph from
                    the north by noon. 
Mixing height.......6000 ft AGL early in the morning. 
Transport winds.....West 5 to 10 mph. 
Ventilation Index...Low (90) increasing to moderate (300) in the 
                    afternoon. 

$$
Forecaster...Day
Requested by...Mike Harris
Type of request...WILDFIRE
.TAG 2620279.0/PDT
.DELDT 08/22/26
.FormatterVersion 2.0.0
.EMAIL mharris@fcfd3.org