


Spot Forecast
Issued by NWS Pendleton, OR
Issued by NWS Pendleton, OR
290 FNUS76 KPDT 161356 FWSPDT Spot Forecast for Bear Creek Unit 2 Rx Burn...Washington DNR National Weather Service Pendleton OR 656 AM PDT Thu Oct 16 2025 Forecast is based on ignition time of 0700 PDT on October 16. ***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. .DISCUSSION...A cold front and upper weather system will bring increasing southwest to west winds tomorrow, with mainly south winds today and variable overnight. Light rain will be possible over the burn area, though any rain amounts will be up to 0.03 inches at best. RHs this afternoon will be in the mid to upper 30s both afternoons with excellent overnight recovery. Ventilation across the burn area will be poor through tomorrow morning. .REST OF TODAY... Sky/weather.........Mostly sunny (25-35 percent). Widespread frost early in the morning, then areas of frost early in the morning. CWR.................0 percent. Chance of lightning.0 percent. Max temperature.....64-67. Min humidity........32-37 percent. Wind (20 ft)........Light drainage winds becoming south 5 to 7 mph after 11AM. Ridgetop wind.......West winds 4 to 8 mph. Mixing height.......3200 ft AGL. Transport winds.....North around 5 mph early in the morning becoming light, then becoming west 5 to 9 mph late in the morning. Ventilation Index...Poor (30) increasing to poor (150) in the afternoon. TIME (PDT) 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM 6PM Chc of ltng (%).0 0 0 0 0 0 0 0 0 0 0 0 Temp............31 30 36 45 50 56 60 61 64 62 61 57 RH..............80 80 73 60 50 45 38 37 37 38 41 48 20 FT wind dir..S S S S S S S S S S S S 20 FT wind spd..4 4 4 4 5 5 5 5 5 5 6 6 20 FT wind gust.5 5 5 5 7 7 7 10 10 10 11 11 .TONIGHT... Sky/weather.........Mostly cloudy (55-65 percent). Patchy frost overnight. Slight chance of rain early in the morning. CWR.................0 percent. Chance of lightning.0 percent. Min temperature.....34-37. Max humidity........95-100 percent. Wind (20 ft)........South winds 4 to 7 mph becoming variable winds 2 to 4 mph after 9PM. Ridgetop wind.......West winds 4 to 7 mph. Mixing height.......900 ft AGL. Transport winds.....West 6 to 7 mph. Ventilation Index...Poor (60). .FRIDAY... Sky/weather.........Partly sunny (50-60 percent) then becoming sunny (5-15 percent). Slight chance of rain early in the morning. CWR.................0 percent. Chance of lightning.0 percent. Max temperature.....61-64. Min humidity........35-40 percent. Wind (20 ft)........Variable winds 2 to 4 mph becoming southwest winds 5 to 10 mph around 10AM, then shifting to the west with gusts to around 21 mph after 4PM. Ridgetop wind.......West winds 4 to 7 mph increasing to 9 to 15 mph with gusts to around 24 mph after 3PM. Mixing height.......3700 ft AGL. Transport winds.....West 7 to 13 mph. Ventilation Index...Poor (60) increasing to fair (340) in the afternoon. $$ Forecaster...Lawhorn Requested by...Adam Lieberg Type of request...PRESCRIBED .TAG 2523630.0/PDT .DELDT 10/15/25 .FormatterVersion 2.0.0 .EMAIL alieberg@columbialandtrust.org