FNUS76 KPDT 231947
FWSPDT

Spot Forecast for Bologna Fire...USFS
National Weather Service Pendleton OR
1247 PM PDT Sun Aug 23 2026

Forecast is based on forecast start time of 1300 PDT on August 23. 
***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...

Westerly surface wind gradually turns easterly between now and midnight.
The forecast is dry with no chances of dry thunderstorms expected. 
The afternoon relative humidity around 17% will recover to around 
50% overnight.   

.REST OF TODAY...

Sky/weather.........Sunny (0-10 percent). 
CWR.................0 percent. 
Chance of lightning.0 percent. 
Max temperature.....79-83. 
Min humidity........16-21 percent. 
Wind (20 ft)........West winds 5 to 8 mph. 
Ridgetop wind.......West winds 6 to 13 mph.  
Mixing height.......6200 ft AGL. 
Transport winds.....West 9 to 10 mph. 
Ventilation Index...Moderate (460-480). 

TIME (PDT)      1 PM   3 PM   5 PM   7 PM   9 PM   11 PM  
Chc of ltng (%).0      0      0      0      0      0      
Temp............77     80     81     76     67     64     
RH..............26     20     20     27     36     39     
20 ft wind......W 8    W 7    NW 7   N 7    N 4    NE 4   
20 ft wind gust.11     12     11     11     6      6      

.TONIGHT...

Sky/weather.........Mostly clear (5-15 percent). 
CWR.................0 percent. 
Chance of lightning.0 percent. 
Min temperature.....52-55. 
Max humidity........47-52 percent. 
Wind (20 ft)........Northwest winds 5 to 8 mph shifting to the 
                    north around 5 mph early in the evening, then 
                    becoming light in the late evening and 
                    overnight. 
Ridgetop wind.......Northwest winds 6 to 13 mph shifting to the 
                    north around 8 mph early in the evening, then 
                    becoming light in the late evening and 
                    overnight.  
Mixing height.......500 ft AGL in the evening. 
Transport winds.....North around 10 mph shifting to the northeast 
                    late in the evening. 
Ventilation Index...Moderate (220) decreasing to low (30) 
                    overnight. 

.MONDAY...

Sky/weather.........Sunny (20-30 percent). Patchy smoke late in the 
                    afternoon. 
CWR.................0 percent. 
Chance of lightning.0 percent. 
Max temperature.....88-92. 
Min humidity........10-15 percent. 
Wind (20 ft)........Light winds becoming north 5 to 8 mph. 
Ridgetop wind.......Light winds becoming north 5 to 8 mph.  
Mixing height.......8300 ft AGL early in the morning. 
Transport winds.....East around 5 mph shifting to the south 6 to 12 
                    mph late in the morning, then shifting to the 
                    north around 6 mph late in the afternoon. 
Ventilation Index...Low (30) increasing to moderate (380-390) in 
                    the afternoon. 

$$
Forecaster...Russell
Requested by...Kristen Marshall
Type of request...WILDFIRE
.TAG 2620121.3/PDT
.DELDT 08/23/26
.FormatterVersion 2.0.0
.EMAIL kristen.marshall@usda.gov,Jonathan.Ellis@usda.gov