FNUS76 KPDT 051314 FWSPDT Spot Forecast for Cold Canal 505A...USFS National Weather Service Pendleton OR 614 AM PDT Tue May 5 2026 Forecast is based on ignition time of 0700 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...Warm, dry conditions are forecast today. Winds are expected (80 percent confidence) to become northerly later this morning through afternoon, and gusty along ridgetops. There is a very low (5 percent) chance of showers and even lower (1 percent) chance of thunderstorms. Overnight and Wednesday, lighter diurnally and terrain-driven winds are forecast. Moderate overnight RH recovery is forecast for mid-slopes with good to excellent recovery in drainages. .REST OF TODAY... Sky/weather.........Sunny (0-10 percent). CWR.................0 percent. Chance of lightning.1 percent. Max temperature.....60-63 mid-slopes, 57-60 drainages. Min humidity........30-35 percent, mid-slopes, 35-40 percent drainages. Wind (20 ft)........North winds 4-8 mph with gusts of 15-20 mph late morning and afternoon. Ridgetop wind.......North winds 10-15 mph in the morning, increasing to 15-20 mph with gusts of 25-35 mph in the afternoon. Mixing height.......Increasing to 6000-6500 ft AGL late morning. Transport winds.....North 10-15 mph increasing to 17-22 mph in the afternoon. Ventilation Index...Moderate (200) increasing to very high (1050) in the afternoon. .TONIGHT... Sky/weather.........Mostly clear (5-15 percent). CWR.................0 percent. Chance of lightning.0 percent. Min temperature.....45-48 mid-slopes, 37-40 drainages. Max humidity........51-56 percent mid-slopes, 80-85 percent drainages. Wind (20 ft)........North winds 4-8 mph with gusts of 15-20 mph in the early evening, becoming drainage winds 1-5 mph overnight. Ridgetop wind.......North winds 15-20 mph with gusts of 25-35 mph in the early evening, decreasing to 3-7 mph overnight. Mixing height.......Decreasing to 400-900 ft AGL overnight. Transport winds.....Northwest 6-12 mph. Ventilation Index...Moderate (400) decreasing to low (30) overnight. .WEDNESDAY... Sky/weather.........Sunny (10-20 percent). CWR.................0 percent. Chance of lightning.1 percent. Max temperature.....64-67 mid-slopes, 61-64 drainages. Min humidity........25-30 percent mid-slopes, 30-35 percent drainages. Wind (20 ft)........Becoming upslope winds 2-5 mph early morning, then shifting to the northwest 3-6 mph late morning. Ridgetop wind.......Becoming upslope winds 2-5 mph early morning, then shifting to the northwest 5-8 mph late morning. Mixing height.......Increasing to 5000-5500 ft AGL by late morning. Transport winds.....North to northwest 5-9 mph. Ventilation Index...Low (30) increasing to moderate (460) in the afternoon. $$ Forecaster...Plunkett Requested by...Andrew Hayes Type of request...PRESCRIBED .TAG 2612019.4/PDT .DELDT 05/05/26 .FormatterVersion 2.0.0 .EMAIL mark.moeller@usda.gov,eaglecapwfm@gmail.com,andrew.c.hayes@usda.gov