


Spot Forecast
Issued by NWS Pendleton, OR
Issued by NWS Pendleton, OR
160 FNUS76 KPDT 311443 FWSPDT Spot Forecast for Wildcat Fire...USFS National Weather Service Pendleton OR 743 AM PDT Sun Aug 31 2025 Forecast is based on forecast start time of 0600 PDT on August 31. ***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...Warm and dry conditions prevail through the beginning of the week. Temperatures hover around the mid to high 70s with no wetting rain expected. Humidity levels drop to the low 30s today but recover to excellent overnight into the mid 70s. Expecting humidity levels to drop to a similar range for Monday. Winds remain light mainly from the south between 5 to 7 mph with normal upslope/downslope cycles overnight and into the morning hours. .TODAY... Sky/weather.........Partly cloudy (40-50 percent). Slight chance of showers (15 percent) early. Haze. CWR.................0 percent. Chance of lightning.6 percent. Max temperature.....75-80. Min humidity........30-35 percent. Wind (20 ft)........Light winds becoming south 5 to 7 mph around 11 AM, then shifting to the southwest 4 to 7 mph around 5 PM. Ridgetop wind.......Light winds 3 to 5 becoming south 7 to 9 mph around 11 AM, then shifting to the southwest 6 to 9 mph around 5 PM. Mixing height.......6200 ft AGL early in the morning. Transport winds.....Southeast 5 to 10 mph shifting to the south 5 to 12 mph late in the afternoon. Ventilation Index...Poor (50) increasing to good (550) in the afternoon. .TONIGHT... Sky/weather.........Partly cloudy (40-50 percent). Slight chance of showers and thunderstorms (15 percent). Haze. CWR.................0 percent. Chance of lightning.5 percent. Min temperature.....54-57. Max humidity........75-80 percent. Wind (20 ft)........Downslope/down valley winds 5 to 7 mph. Ridgetop wind.......Downslope/down valley winds 7 to 9 mph. Mixing height.......1400 ft AGL early in the evening. Transport winds.....West 5 to 6 mph. Ventilation Index...Poor (50) decreasing to poor (30) overnight. .LABOR DAY... Sky/weather.........Mostly sunny (25-35 percent). CWR.................0 percent. Chance of lightning.2 percent. Max temperature.....Around 80. Min humidity........31-36 percent. Wind (20 ft)........Upslope/up-valley becoming 5 to 7 mph around 11 AM, then shifting to the northwest 4 to 7 mph around 8PM. Ridgetop wind.......Upslope/up-valley becoming 7 to 9 mph around 11 AM, then shifting to the northwest 6 to 9 mph around 8PM. Mixing height.......6800 ft AGL late in the morning. Transport winds.....West around 5 mph early in the morning becoming light, then becoming southeast 6 to 12 mph late in the morning. Ventilation Index...Poor (30) increasing to fair (480) in the afternoon. $$ Forecaster...Day Requested by...Derrick Thomas Type of request...WILDFIRE .TAG 2520901.2/PDT .DELDT 08/31/25 .FormatterVersion 2.0.0 .EMAIL joseph.landburg@usda.gov,Derrick.Thomas@USDA.gov