FNUS76 KPDT 042116 FWSPDT Spot Forecast for Akawa Butte Fire...ODF National Weather Service Pendleton OR 216 PM PDT Tue Aug 4 2026 Forecast is based on forecast start time of 0600 PDT on August 05. ***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...Hot, dry conditions are forecast through Thursday. Fair to good RH recovery is anticipated. Diurnally and terrain-driven winds are forecast Wednesday through Thursday morning, followed by a push of gusty northwest wind later Thursday afternoon. Mixing heights will deepen through Thursday, leading to concerns for hot, dry, and unstable conditions. Nocturnal inversions are forecast to break by 9-11 AM. .WEDNESDAY... Sky/weather.........Sunny (10-20 percent). Areas of smoke. CWR.................0 percent. Chance of lightning.0 percent. Max temperature.....88-91. Min humidity........10-15 percent. Wind (20 ft)........Variable winds 1-3 mph early morning, becoming upslope and upvalley 2-4 mph by mid-morning, then becoming north to northeast 4-8 mph with gusts of 10-15 mph in the afternoon. Ridgetop wind.......Variable winds 1-3 mph early morning, becoming upslope and upvalley 2-4 mph by mid-morning, then becoming north to northeast 5-9 mph with gusts of 12-17 mph in the afternoon. Mixing height.......Increasing to 6500-7000 ft AGL by afternoon. Transport winds.....Variable winds 1-4 mph, becoming west 8-12 mph late afternoon. Ventilation Index...Low (30) increasing to moderate (310-340) in the afternoon. TIME (PDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM Chc of ltng (%).0 0 0 0 0 0 0 0 0 0 0 0 Temp............50 53 59 65 73 77 82 86 89 91 90 91 RH..............51 51 46 32 23 20 18 15 14 13 14 13 20 FT wind dir..W W SW E E E E NE NE NE N NW 20 FT wind spd..2 2 3 3 3 4 5 5 6 6 7 6 20 FT wind gust. 5 4 5 6 8 10 12 13 14 14 .WEDNESDAY NIGHT... Sky/weather.........Mostly clear (5-15 percent). Areas of smoke. CWR.................0 percent. Chance of lightning.0 percent. Min temperature.....51-54. Max humidity........45-50 percent. Wind (20 ft)........North to northwest winds 4-7 mph with gusts of 10-15 mph early evening, becoming drainage winds 2-6 mph overnight. Ridgetop wind.......North to northwest winds 5-9 mph with gusts of 12-17 mph early evening, becoming drainage winds 2-6 mph overnight. Mixing height.......Decreasing to 300-600 ft AGL overnight. Transport winds.....West-northwest 8-12 mph early evening, becoming west 4-8 mph overnight. Ventilation Index...Moderate (270-300) decreasing to low (30) overnight. .THURSDAY... Sky/weather.........Sunny (0-10 percent). Areas of smoke in the morning, then patchy smoke in the afternoon. CWR.................0 percent. Chance of lightning.0 percent. Max temperature.....93-96. Min humidity........9-14 percent. Wind (20 ft)........Variable to southwest winds 2-6 mph in the morning, becoming northwest 6-10 mph with gusts of 15-20 mph late afternoon. Ridgetop wind.......Variable to southwest winds 3-7 mph in the morning, becoming northwest 7-12 mph with gusts of 15-25 mph late afternoon. Mixing height.......Increasing to 8500-9000 ft AGL by afternoon. Transport winds.....West to southwest 4-8 mph in the morning, increasing to 10-15 mph late afternoon. Ventilation Index...Low (30) increasing to high (580-650) in the afternoon. $$ Forecaster...Plunkett Requested by...Dave Isackson Type of request...WILDFIRE .TAG 2618970.0/PDT .DELDT 08/04/26 .FormatterVersion 2.0.0 .EMAIL david_isackson@firenet.gov