668 FNUS76 KPDT 072153 FWSPDT Spot Forecast for Bridge Fire...CIIMT4 National Weather Service Pendleton OR 253 PM PDT Sun Sep 7 2025 Forecast is based on forecast start time of 0700 PDT on September 08. ***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...The active pattern continues with chances of showers and thunderstorms Monday and Tuesday. The best chance for thunderstorms will be during the afternoon and early evening hours, with the primary threats being gusty outflow winds, brief heavy downpours, and lightning. Locally wetting rains will help to curb significant fire weather impacts. Thunder chances decrease overnight Monday into Tuesday morning, with renewed chances Tuesday afternoon and evening. .MONDAY... Sky/weather.........Partly sunny (50-60 percent) then becoming mostly sunny (40-50 percent). Chance of showers and thunderstorms through the afternoon. CWR.................4 percent. Chance of lightning.26 percent. Max temperature.....71-75. Min humidity........33-38 percent. Wind (20 ft)........Light winds becoming southwest 5 to 7 mph late in the afternoon. Gusty and erratic winds expected near thunderstorms late in the morning. Gusty and erratic winds expected near thunderstorms. Ridgetop wind.......South 10 to 15 mph. Ventilation Index...Poor (30) increasing to good (590) 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 30 30 30 20 20 Temp............52 56 59 65 69 71 71 73 71 71 71 67 RH..............76 68 60 52 48 44 39 37 37 34 38 40 20 FT wind dir..SE E E E S S S SW SW SW W W 20 FT wind spd..3 3 3 3 4 4 4 5 5 5 5 5 20 FT wind gust.4 6 6 6 10 10 10 10 10 10 11 11 .MONDAY NIGHT... Sky/weather.........Mostly cloudy (50-70 percent). Slight chance of thunderstorms early in the evening. Chance of rain showers through the night. CWR.................4 percent. Chance of lightning.21 percent. Min temperature.....Around 50. Max humidity........82-87 percent. Wind (20 ft)........West winds 5 to 7 mph becoming light. Gusty and erratic winds expected near thunderstorms. Ridgetop wind.......Southwest 15 to 20 mph. Ventilation Index...Poor to fair (160-220) decreasing to poor (30-50) overnight. .TUESDAY... Sky/weather.........Partly sunny (60-70 percent). Slight chance of thunderstorms in the morning. Rain showers likely through the day. Chance of thunderstorms in the afternoon. CWR.................2 percent increasing to 49 percent late in the morning, then decreasing to 8 percent late in the afternoon. Chance of lightning.25 percent. Max temperature.....61-65. Min humidity........55-61 percent. Wind (20 ft)........Light winds becoming west 5 to 7 mph late in the afternoon. Gusty and erratic winds expected near thunderstorms. Ridgetop wind.......Southwest 10 to 15 mph. Ventilation Index...Poor (30-60) increasing to poor to fair (180-220) in the afternoon. $$ Forecaster...NWS Seattle Requested by...Kyle Kramer Type of request...WILDFIRE .TAG 2521515.0/PDT .DELDT 09/07/25 .FormatterVersion 2.0.0 .EMAIL kyle.kramer@surfcity-hb.org