730 FNUS76 KPDT 300513 FWSPDT Spot Forecast for MP 234 & 235 Fire...OREIC National Weather Service Pendleton OR 1013 PM PDT Tue Jul 29 2025 Forecast is based on forecast start time of 0700 PDT on July 30. ***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 the transport wind multiplied by the mixing height in 100's of feet. Index categories are a generalized indicator only.*** If you have questions or concerns with this forecast, please contact our office at (541) 276-8134. ...RED FLAG WARNING IN EFFECT FROM 1 PM WEDNESDAY TO 11 AM PDT THURSDAY... .DISCUSSION...The region remains locked under a weather pattern favorable for afternoon showers and thunderstorms. Red Flag Warnings are in effect through Thursday as a result, with storm flare-up expected to start around 12 to 2 pm Wednesday afternoon, subsiding slightly overnight, before more widespread coverage kicks in by early morning Thursday. Winds will be light, except for in the vicinity of storms, when outflow gusts could reach as high as 50 mph at times. .WEDNESDAY... Sky/weather.........Mostly sunny (25-35 percent) then becoming mostly cloudy (65-75 percent). Chance of rain showers and slight chance of thunderstorms late in the morning (20-30 percent), increasing late in the afternoon (45-55 percent). CWR.................4 percent increasing to 55 percent late in the afternoon. Chance of lightning.35 percent. Max temperature.....85-88. Min humidity........21-26 percent. Wind (20 ft)........Light winds becoming North-Northeast 5 to 8 mph by the late morning, shifting to the Northwest by the afternoon. Gusty and erratic winds expected near thunderstorms. Ridgetop wind.......Northeast winds 5 to 10 mph, shifting to the West- Southwest by the afternoon. Mixing Height.......10000 ft AGL. Transport wind......East winds around 8 mph early, shifting to the West-Northwest around 10 mph by the afternoon. Ventilation Index...Poor (100) increasing to fair (430) in the afternoon. TIME (PDT) 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM 6PM Chc of ltng (%).0 0 0 0 20 20 20 20 20 20 40 40 Temp............57 63 71 75 79 82 84 85 84 82 78 76 RH..............58 56 46 39 33 30 28 26 29 32 38 42 20 FT wind dir..N E E E NE NE NE N N N NW NW 20 FT wind spd..3 5 5 5 7 7 7 7 7 7 6 6 20 FT wind gust.5 7 7 7 11 11 11 11 11 11 11 11 .WEDNESDAY NIGHT... Sky/weather.........Mostly cloudy (70-80 percent). Rain showers likely and chance of thunderstorms in the evening (45-55 percent), decreasing overnight (20-30 percent). CWR.................55 percent decreasing to 7 percent late in the evening. Chance of lightning.35 percent. Min temperature.....53-56. Max humidity........74-79 percent. Wind (20 ft)........Northwest winds 5 to 10 mph shifting to the West overnight, then becoming light. Gusty and erratic winds expected near thunderstorms. Ridgetop wind.......West winds 5 to 10 mph. Mixing Height.......3400 ft AGL early in the evening, then near- surface overnight. Transport wind......West-Southwest winds 8 to 14 mph early in the evening, becoming West around 8 mph overnight. Ventilation Index...Fair (200) decreasing to poor (30) overnight. .THURSDAY... Sky/weather.........Mostly cloudy (65-75 percent). Chance of rain showers and thunderstorms (35-45 percent). CWR.................7 percent increasing to 56 percent late in the morning, then decreasing to 13 percent late in the afternoon. Chance of lightning.35 percent. Max temperature.....Around 80. Min humidity........38-43 percent. Wind (20 ft)........Light winds becoming Northwest 5 to 10 mph late in the morning. Gusty and erratic winds expected near thunderstorms. Ridgetop wind.......Northwest winds 6 to 12 mph, shifting to the Southwest by the afternoon. Mixing Height.......4500 ft AGL. Transport wind......West-Northwest winds 8 to 12 mph. Ventilation Index...Poor (40) increasing to fair (230) in the afternoon. $$ Forecaster...Evans Requested by...OREIC Type of request...WILDFIRE .TAG 2518782.0/PDT .DELDT 07/30/25 .FormatterVersion 2.0.0 .EMAIL jaime.garcia@usda.gov,oreic@firenet.gov