200
FNUS76 KPDT 152100
FWSPDT

Spot Forecast for Bologna Fire...OR Dep of Forestry
National Weather Service Pendleton OR
200 PM PDT Sat Aug 15 2026

Forecast is based on forecast start time of 1600 PDT on August 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 slight chance (<20 percent) of showers and
thunderstorms this afternoon, otherwise dry weather is expected through
Sunday.

MIN RH values will be 20 to 25 percent today and around 20 percent on Monday,
with good overnight recoveries.

Winds will generally be 10 mph or less, outside of any thunderstorms.

.REST OF TODAY...

Sky/weather.........Mostly sunny (25-35 percent). Slight chance (<20%) of
                    showers and thunderstorms late in the
                    afternoon. Patchy smoke through the day.
CWR.................0 percent.
Chance of lightning.19 percent.
Max temperature.....86-90.
Min humidity........20-25 percent.
Wind (20 ft)........West winds 5 to 6 mph shifting to the north
                    late in the afternoon. Gusty and erratic winds
                    expected near thunderstorms late in the
                    afternoon.
Ridgetop wind.......South winds 5 to 10 mph, becoming northwest late in
                    the afternoon.
Mixing height.......9500 ft AGL.
Transport winds.....Southwest around 13 mph shifting to the north
                    late in the afternoon.
Ventilation Index...

TIME (PDT)      4 PM   6 PM   8 PM   10 PM  MIDNGT 2 AM
Chc of ltng (%).20     10     10     10     0      0
Temp............88     86     79     73     69     65
RH..............25     29     38     45     50     58
20 ft wind......W 6    N 7    N 6    N 4    NW 3   NW 3
20 ft wind gust.10     11     10     6      5      5

.TONIGHT...

Sky/weather.........Partly cloudy (40-50 percent). Patchy smoke
                    early in the evening. Patchy smoke late in the
                    evening.
CWR.................0 percent.
Chance of lightning.5 percent.
Min temperature.....56-59.
Max humidity........64-69 percent.
Wind (20 ft)........North winds 5 to 8 mph becoming light.
Ridgetop wind.......North winds 10 to 15 mph in the evening, then
                    decreasing to 5 to 10 mph overnight.
Mixing height.......600 ft AGL.
Transport winds.....Northwest 5 to 13 mph becoming light.
Ventilation Index...Moderate (340-370) decreasing to low (30)
                    overnight.

.SUNDAY...

Sky/weather.........Mostly sunny (20-30 percent) then becoming
                    mostly cloudy (70-80 percent). Patchy smoke.
CWR.................0 percent.
Chance of lightning.1 percent.
Max temperature.....87-92.
Min humidity........18-23 percent.
Wind (20 ft)........Light winds becoming west 5 to 8 mph late in
                    the afternoon, then shifting to the northwest 5
                    to 7 mph late in the afternoon.
Ridgetop wind.......North winds 5 to 10 mph.
Mixing height.......8600 ft AGL.
Transport winds.....Light winds becoming northwest around 10 mph.
Ventilation Index...Low (30) increasing to moderate (400-430) in
                    the afternoon.

$$
Forecaster...Nierenberg
Requested by...Greg Wagenblast
Type of request...WILDFIRE
.TAG 2619723.1/PDT
.DELDT 08/15/26
.FormatterVersion 2.0.0
.EMAIL Greg.Wagenblast@odf.oregon.gov