FNUS76 KPDT 052203 FWSPDT Spot Forecast for Mutton RX...WSA National Weather Service Pendleton OR 303 PM PDT Tue May 5 2026 Forecast is based on ignition time of 1500 PDT on May 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... Winds will be out of the north and becoming more northwest after sunset as relative humidities recover from the mid 20's (percent) to around 75 percent overnight. The winds become more down valley and light (less than 5 mph) after midnight toward the river and then light southwesterly by Wednesday morning. .REST OF TODAY... Sky/weather.........Sunny (0-10 percent). CWR.................0 percent. Chance of lightning.1 percent. Max temperature.....85-88. Min humidity........21-26 percent. Wind (20 ft)........North winds 5 to 11 mph. Ridgetop wind.......North winds 10 to 14 mph. Mixing height.......8900 ft AGL. Transport winds.....North 12 to 13 mph. Ventilation Index...Very high (710). TIME (PDT) 3 PM 5 PM 7 PM 9 PM 11 PM 1 AM Chc of ltng (%).0 0 0 0 0 0 Temp............85 85 83 75 66 62 RH..............26 26 30 42 54 65 20 ft wind......N 10 N 11 N 11 N 8 NW 6 NW 6 20 ft wind gust.13 17 17 12 .TONIGHT... Sky/weather.........Mostly clear (5-15 percent). CWR.................0 percent. Chance of lightning.1 percent. Min temperature.....50-53. Max humidity........74-79 percent. Wind (20 ft)........North winds 5 to 11 mph shifting to the northwest 5 to 7 mph late in the evening, then shifting to the south overnight. Ridgetop wind....... Mixing height.......1600 ft AGL. Transport winds.....North 5 to 13 mph in the evening and overnight becoming light, then becoming southwest around 5 mph early in the morning. Ventilation Index...Moderate (410) decreasing to low (40) overnight. .WEDNESDAY... Sky/weather.........Sunny (10-20 percent) then becoming partly sunny (60-70 percent). CWR.................0 percent. Chance of lightning.0 percent. Max temperature.....Around 90. Min humidity........20-25 percent. Wind (20 ft)........South winds 5 to 8 mph shifting to the west 7 to 17 mph with gusts to around 22 mph late in the afternoon. Ridgetop wind.......South winds 7 to 10 mph shifting to the west 9 to 20 mph with gusts to around 28 mph late in the afternoon. Mixing height.......9300 ft AGL. Transport winds.....Southwest 5 to 6 mph increasing to west around 20 mph. Ventilation Index...Low (100) increasing to very high (780) in the afternoon. $$ Forecaster...Russell Requested by...Jeff Casey Type of request...PRESCRIBED .TAG 2612844.0/PDT .DELDT 05/05/26 .FormatterVersion 2.0.0 .EMAIL jeff.casey@ctwsbnr.org,jpndsampson@gmail.com