FNUS76 KPDT 230002 FWSPDT Spot Forecast for Colwash...SE WA Type 3 IMT - Team 2 National Weather Service Pendleton OR 502 PM PDT Sat Aug 22 2026 Forecast is based on forecast start time of 1700 PDT on August 22. ***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. ...RED FLAG WARNING IN EFFECT UNTIL 10 PM PDT THIS EVENING... .DISCUSSION...Breezy winds peak through the rest of the afternoon through the early evening hours. Winds are forecasted to decrease to 7 to 12 mph by 8 PM with possible bursts of wind gusts up to 20 mph time to time. Winds will lighten up by tomorrow. Not expecting any additional precipitation or lightning in the vicinity. Overnight recoveries will be excellent going up to 80 percent. .REST OF TODAY... Sky/weather.........Sunny (0-10 percent). Patchy blowing dust. CWR.................0 percent. Chance of lightning.1 percent. Max temperature.....90-95. Min humidity........22-27 percent. Wind (20 ft)........West winds 12 to 17 mph with gusts up to 25 mph. Ridgetop wind.......West winds 15 to 20 mph with gusts up to 35 mph. Mixing height.......3400 ft AGL. Transport winds.....West 20 to 30 mph. Ventilation Index...Moderate (310). TIME (PDT) 5PM 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM Chc of ltng (%).0 0 0 0 0 0 0 0 0 0 0 0 Temp............89 89 84 78 74 71 68 66 64 63 59 57 RH..............26 27 32 40 47 50 56 60 65 67 74 79 20 FT wind dir..W W W W W W W W W W W SW 20 FT wind spd..19 17 14 11 11 10 10 8 8 8 8 8 20 FT wind gust.22 21 19 16 16 14 14 14 14 14 14 12 .TONIGHT... Sky/weather.........Mostly clear (10-20 percent). Patchy blowing dust in the evening. CWR.................0 percent. Chance of lightning.1 percent. Min temperature.....52-57. Max humidity........80-85 percent. Wind (20 ft)........West winds 10 to 20 mph with gusts up to 25 mph. Winds decrease to 7 to 12 mph with gusts up to 20 mph by 8 PM. Winds shift to the southwest at 7 to 12 mph by 4 AM. Ridgetop wind.......West winds 15 to 25 mph with gusts up to 30 mph. Winds decrease to 10 to 15 mph with gusts up to 25 mph by 8 PM. Winds shift to the southwest at 10 to 15 mph by 4 AM. Mixing height.......500 ft AGL in the evening and overnight. Transport winds.....West 10 to 20 mph decreasing to 5 to 10 mph overnight. Ventilation Index...Moderate (310) decreasing to low (40) overnight. .SUNDAY... Sky/weather.........Sunny (5-15 percent). CWR.................0 percent. Chance of lightning.0 percent. Max temperature.....87-92. Min humidity........28-33 percent. Wind (20 ft)........Southwest winds 5 to 10 mph, shifting to the northwest at 5 to 10 mph by 9 AM. Winds decrease to 3 to 8 mph from the north by noon. Ridgetop wind.......Southwest winds 7 to 12 mph, shifting to the northwest at 7 to 12 mph by 9 AM. Winds decrease to 5 to 10 mph from the north by noon. Mixing height.......6100 ft AGL early in the morning. Transport winds.....West 5 to 10 mph shifting tothe north 5 to 10 mph late in the afternoon. Ventilation Index...Low (110-120) increasing to moderate (280) in the afternoon. $$ Forecaster...Day Requested by...Ryan Scharnhorst Type of request...WILDFIRE .TAG 2620267.0/PDT .DELDT 08/22/26 .FormatterVersion 2.0.0 .EMAIL ryan.scharnhorst@pullman-wa.gov