248 FNUS76 KPDT 230529 FWSPDT Spot Forecast for Middle Ridge...USFS National Weather Service Pendleton OR 1029 PM PDT Sat Aug 22 2026 Forecast is based on forecast start time of 2300 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. .DISCUSSION...Winds will generally be light in nature with mostly variable direction with some direction coming out of the northwest. Overnight recoveries are good to excellent over the next two days, ranging from 55 to 65 percent. Dry air lingers with relative humidities dropping to the mid-20's percentage wise, while dropping further in the mid-teens by Monday. .REST OF TONIGHT... Sky/weather.........Mostly clear (15-25 percent). CWR.................0 percent. Chance of lightning.1 percent. Min temperature.....55-60. Max humidity........60-65 percent. Wind (20 ft)........Northwest winds 3 to 8 mph. Light and variable at times, especially in the later overnight hours. Ridgetop wind.......Northwest winds 5 to 10 mph. Mixing height.......500 ft AGL. Transport winds.....West 9 to 14 mph. Ventilation Index...Low (70). TIME (PDT) 11P MID 1AM 2AM 3AM 4AM 5AM 6AM 7AM 8AM 9AM 10A Chc of ltng (%).0 0 0 0 0 0 0 0 0 0 0 0 Temp............64 62 61 59 57 54 53 52 51 55 58 64 RH..............45 50 54 60 66 69 74 78 78 73 66 56 20 FT wind dir..NW NW NW NW NW NW NW NW NW W W W 20 FT wind spd..8 8 6 6 6 6 6 5 5 5 5 5 20 FT wind gust.14 10 8 7 8 8 8 6 6 6 6 8 .SUNDAY... Sky/weather.........Sunny (0-10 percent). Patchy smoke late in the afternoon. CWR.................0 percent. Chance of lightning.0 percent. Max temperature.....78-83. Min humidity........27-32 percent. Wind (20 ft)........Northwest winds 5 to 10 mph. Ridgetop wind.......Northwest winds 10 to 15 mph. Mixing height.......5100 ft AGL. Transport winds.....West 9 to 14 mph. Ventilation Index...Low (100) increasing to high (520) in the afternoon. .SUNDAY NIGHT... Sky/weather.........Mostly clear (15-25 percent). Patchy smoke. CWR.................0 percent. Chance of lightning.0 percent. Min temperature.....47-52. Max humidity........55-60 percent. Wind (20 ft)........Northwest winds 5 to 10 mph in the evening becoming light and variable by 10 PM. Ridgetop wind.......Northwest winds 7 to 12 mph in the evening becoming light and variable by 10 PM. Mixing height.......500 ft AGL. Transport winds.....Northwest 9 to 14 mph shifting to the northeast 5 to 10 mph early in the morning. Ventilation Index...Low (140) decreasing to low (30) overnight. .MONDAY... Sky/weather.........Sunny (20-30 percent). CWR.................0 percent. Chance of lightning.0 percent. Max temperature.....88-93. Min humidity........15-20 percent. Wind (20 ft)........Light and variable winds. Ridgetop wind.......Light and variable winds. Mixing height.......7300 ft AGL early in the morning. Transport winds.....Northeast 5 to 10 mph in the morning becoming light, then becoming southwest 5 to 10 mph late in the afternoon shifting to the northeast 3 to 8 mph. Ventilation Index...Low (40) increasing to moderate (290) in the afternoon. $$ Forecaster...Day Requested by...IC Type of request...WILDFIRE .TAG 2620284.0/PDT .DELDT 08/22/26 .FormatterVersion 2.0.0 .EMAIL orbmc@firenet.gov,anthony.m.goodwater@odf.oregon.gov