Spot Forecast
Issued by NWS Pendleton, OR
Issued by NWS Pendleton, OR
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500 FNUS76 KPDT 250122 FWSPDT Spot Forecast for Puderbaugh 502 Rx...USFS National Weather Service Pendleton OR 622 PM PDT Tue Sep 24 2024 Forecast is based on ignition time of 0600 PDT on September 25. ***Thunderstorms imply gusty and erratic winds*** ***Winds are 20 foot 10-minute averages*** ***CWR-Chance of wetting rain 0.10 or greater*** If you have questions or concerns with this forecast, please contact our office at (541) 276-8134. .DISCUSSION...An upper level low pressure system and surface cold front will impact the fire area Wednesday. Winds will increase through the day as the system approaches the fire, with the cold front boundary expected to arrive between 5PM to 7PM. Winds will shift to the northwest then north as well as weaken behind the frontal passage. There is a chance for rain showers, with isolated thunderstorms also possible through the early evening hours. Before showers arrive, RHs are expected to dip into the mid teens to lower 20s, but expect good to excellent overnight recoveries. .WEDNESDAY... Sky/weather.........Sunny (10-20 percent) then becoming partly sunny (55-65 percent). Chance of rain showers and slight chance of thunderstorms late in the afternoon. CWR.................4 percent. LAL.................1 until 1700, then 2. Max temperature.....76-79. Min humidity........16-21 percent. Wind (20 ft)........South winds 7 to 13 mph increasing to 15 to 21 mph after 10AM. Gusty and erratic winds expected near thunderstorms late in the afternoon. Ridgetop wind.......South winds 9 to 14 mph increasing to 16 to 22 mph after 10AM. Mixing height.......7000 ft AGL early in the morning. Transport winds.....South 12 to 18 mph increasing to around 26 mph late in the afternoon, then shifting to the west around 18 mph late in the afternoon. Haines Index........2 to 3 or very low potential for large plume dominated fire growth. TIME (PDT) 6 AM 8 AM 10 AM NOON 2 PM 4 PM Temp............54 55 66 73 76 76 RH..............56 53 34 28 23 21 20 ft wind......S 11 S 14 S 14 S 18 S 21 S 21 20 ft wind gust.13 16 16 19 24 24 .WEDNESDAY NIGHT... Sky/weather.........Mostly cloudy (70-80 percent) then becoming partly cloudy (20-30 percent). Slight chance of thunderstorms early in the evening. Chance of rain showers. CWR.................6 percent. LAL.................2 until 2000, then 1. Min temperature.....46-49. Max humidity........85-90 percent. Wind (20 ft)........South winds 12 to 18 mph shifting to the northwest 7 to 12 mph after 8PM, then shifting to the north 5 to 10 mph after 11PM. Gusty and erratic winds expected near thunderstorms early in the evening. Ridgetop wind.......South winds 12 to 20 mph shifting to the north 5 to 12 mph after 8PM. Mixing height.......500 ft AGL in the evening and overnight. Transport winds.....West around 18 mph shifting to the north 6 to 15 mph early in the evening. Haines Index........2 to 3 or very low potential for large plume dominated fire growth. .THURSDAY... Sky/weather.........Sunny (10-20 percent). CWR.................0 percent. LAL.................1. Max temperature.....Around 70. Min humidity........26-31 percent. Wind (20 ft)........North winds 5 to 8 mph shifting to the south 5 to 11 mph after 11AM. Ridgetop wind.......North winds 5 to 10 mph shifting to the south 7 to 13 mph after 11AM. Mixing height.......4500 ft AGL early in the morning. Transport winds.....North around 6 mph shifting to the south 5 to 14 mph early in the morning, then shifting to the southwest 16 to 18 mph late in the afternoon. Haines Index........2 to 3 or very low potential for large plume dominated fire growth. $$ Forecaster...Lawhorn Requested by...Todd Pederson Type of request...PRESCRIBED .TAG 2422933.1/PDT .DELDT 09/24/24 .FormatterVersion 2.0.0 .EMAIL todd.pederson@usda.gov