086 FNUS76 KPDT 290710 FWSPDT Spot Forecast for Lyle Hill Fire...SE WA IMT3 National Weather Service Pendleton OR 1210 AM PDT Mon Jun 29 2026 Forecast is based on forecast start time of 0600 PDT on June 29. ***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... Breezy west winds are going to continue all night and day. Relative humidity will not be as much of an issue as the wind, as cooler temperatures and moisture contribute to capping relative humidity in the afternoon to around 60%. .TODAY... Sky/weather.........Mostly cloudy (75-85 percent) then becoming mostly sunny (35-45 percent). CWR.................0 percent. Chance of lightning.1 percent. Max temperature.....66-69. Min humidity........59-64 percent. Wind (20 ft)........West winds 11 to 22 mph with gusts to around 29 mph. Ridgetop wind.......West winds 16 to 24 mph with gusts to around 35 mph. Mixing height.......3000 ft AGL. Transport winds.....West 23 to 29 mph. Ventilation Index...Moderate (380) increasing to very high (730) 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............55 55 56 56 59 60 61 63 65 65 65 66 RH..............75 79 80 79 77 74 71 67 64 64 64 65 20 FT wind dir..W W W W W W W W W W W W 20 FT wind spd..19 18 20 21 22 22 22 21 21 21 21 21 20 FT wind gust.28 26 28 29 29 29 29 28 26 26 26 26 .TONIGHT... Sky/weather.........Partly cloudy (25-35 percent). CWR.................0 percent. Chance of lightning.0 percent. Min temperature.....55-58. Max humidity........72-77 percent. Wind (20 ft)........West winds 8 to 20 mph with gusts to around 26 mph. Ridgetop wind.......West winds 15 to 24 mph with gusts to around 33 mph. Mixing height.......600 ft AGL. Transport winds.....West 20 to 29 mph. Ventilation Index...Moderate (470) decreasing to low (130) overnight. .TUESDAY... Sky/weather.........Sunny (15-25 percent). CWR.................0 percent. Chance of lightning.0 percent. Max temperature.....66-69. Min humidity........52-57 percent. Wind (20 ft)........West winds 10 to 22 mph with gusts to around 30 mph. Ridgetop wind.......West winds 15 to 27 mph with gusts to around 35 mph. Mixing height.......3700 ft AGL. Transport winds.....West 21 to 28 mph. Ventilation Index...Moderate (450) increasing to very high (800) in the afternoon. $$ Forecaster...Russell Requested by...Mike Heston PSC3 Type of request...WILDFIRE .TAG 2616412.0/PDT .DELDT 06/29/26 .FormatterVersion 2.0.0 .EMAIL mike_heston@firenet.gov,david_winter@firenet.gov