FNUS76 KPDT 221943 FWSPDT Spot Forecast for Bologna Fire...USFS National Weather Service Pendleton OR 1243 PM PDT Sat Aug 22 2026 Forecast is based on forecast start time of 1500 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 FOR WIND AND LOW RELATIVE HUMIDITY... .DISCUSSION...Breezy southwest winds and low relative humidity are expected through mid-afternoon, followed by a switch to gusty northwest winds by 4-6 PM. There is a very low (10 percent) chance of high-based showers and thunderstorms this afternoon, but most activity is forecast to develop east of the burn site. Cooler temperatures and good RH recovery are anticipated tonight, followed by lighter winds and more seasonal temperatures Sunday. .REST OF TODAY... Sky/weather.........Becoming mostly sunny (5-25 percent). Very low (10 percent) chance of high-based, dry showers and thunderstorms in the afternoon. CWR.................1 percent. Chance of lightning.10 percent. Max temperature.....89-92. Min humidity........12-17 percent. Wind (20 ft)........Southwest winds 6-12 mph with gusts of 15-20 mph, shifting to the northwest 4-6 PM in the afternoon. Ridgetop wind.......Southwest winds 9-14 mph with gusts of 20-25 mph, shifting to the northwest 4-6 PM in the afternoon. Mixing height.......10000-10500 ft AGL. Transport winds.....Southwest 12-17 mph shifting to the northwest 12-17 mph late in the afternoon. Ventilation Index...Very high (1050). TIME (PDT) 1 PM 3 PM 5 PM 7 PM 9 PM 11 PM 1 AM Chc of ltng (%).10 10 0 0 0 0 0 Temp............87 90 86 79 70 66 62 RH..............20 17 20 30 43 49 56 20 ft wind......SW 6 SW 9 NW 10 NW 8 NW 6 NW 3 NW 2 20 ft wind gust.15 18 18 17 12 7 6 .TONIGHT... Sky/weather.........Mostly clear (5-15 percent). CWR.................0 percent. Chance of lightning.1 percent. Min temperature.....52-55. Max humidity........67-72 percent. Wind (20 ft)........Northwest winds 6-12 mph with gusts of 15-20 mph in the evening, becoming light overnight. Ridgetop wind.......Northwest winds 9-14 mph with gusts of 20-25 mph in the evening, becoming light overnight. Mixing height.......Decreasing to 800-1200 ft AGL overnight. Transport winds.....Northwest 12-17 mph decreasing to 4-8 mph overnight. Ventilation Index...Moderate (340-380) decreasing to low (30) overnight. .SUNDAY... Sky/weather.........Sunny (0-10 percent). CWR.................0 percent. Chance of lightning.0 percent. Max temperature.....81-84. Min humidity........17-22 percent. Wind (20 ft)........Light winds becoming west 7-8 mph with gusts of 10-15 mph in the afternoon. Ridgetop wind.......Light winds becoming west 6-9 mph with gusts of 12-17 mph in the afternoon. Mixing height.......Increasing to 6200-6700 ft AGL by afternoon. Transport winds.....West 6-10 mph, becoming northwest 8-12 mph late afternoon. Ventilation Index...Low (80) increasing to moderate (490-500) in the afternoon. $$ Forecaster...Plunkett Requested by...Kristen Marshall Type of request...WILDFIRE .TAG 2620121.2/PDT .DELDT 08/22/26 .FormatterVersion 2.0.0 .EMAIL Jonathan.Ellis@usda.gov,kristen.marshall@usda.gov