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Spot Forecast
Issued by NWS Pendleton, OR
Issued by NWS Pendleton, OR
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864 FNUS76 KPDT 170820 FWSPDT Spot Forecast for K-Block Fire...Oregon Military Department National Weather Service Pendleton OR 120 AM PDT Wed Jul 17 2024 Forecast is based on forecast start time of 0000 PDT on July 17. ***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. ...RED FLAG WARNING IN EFFECT UNTIL 5 PM PDT THIS AFTERNOON FOR ABUNDANT LIGHTNING... ...HEAT ADVISORY IN EFFECT UNTIL 10 PM PDT THURSDAY... .DISCUSSION...A storm threat will bring risk for lightning and outflow winds starting in the small hours through this afternoon. Activity early tonight has been confined to central OR and west of the Cascades. Threat for storms increases after 5 AM peaking 3-7 PM PDT with chances around 15-25% thus low confidence. However, outflow winds from nearby or dissipating storms could cause uptick in winds at the location. Fair RH recovery overnight. Hot, dry conditions today with generally light winds deep mixing tomorrow. .TONIGHT... Sky/weather.........Mostly clear (20-30 percent) then becoming mostly cloudy (80-90 percent). Slight chance of showers and thunderstorms after 4 AM PDT. CWR.................5 percent. LAL.................1 until 0400, then 2. Min temperature.....64-66. Max humidity........40-45 percent. Wind (20 ft)........Southwest winds 4 to 6 mph. Gusty and erratic winds expected near any thunderstorms early in the morning. Mixing height.......500 ft AGL. Transport winds.....Light then becoming southwest around 5 mph early in the morning. Haines Index........4 or low potential for large plume dominated fire growth. TIME (PDT) 2 AM 4 AM 6 AM 8 AM 10 AM Temp............67 66 65 74 81 RH..............38 40 44 42 37 20 ft wind......SSW 6 SW 6 SW 5 SE 6 SE 7 20 ft wind gust. 10 10 .TODAY... Sky/weather.........Cloudy (85-95 percent) then becoming mostly sunny (25-35 percent). Slight chance of showers and thunderstorms. CWR.................5 percent. LAL.................2. Max temperature.....102-104. Min humidity........10-12 percent. Wind (20 ft)........South winds 4 to 6 mph sifting to the north northwest late in the morning 5 to 10 mph afternoon. Gusty and erratic winds expected near any thunderstorms. Mixing height.......8900 ft AGL. Transport winds.....South around 5 mph shifting to the east 6 to 9 mph early in the morning then becoming west 10 to 15 mph late in the afternoon after 5 PM. Haines Index........3 to 4 or very low to low potential for large plume dominated fire growth. .WEDNESDAY NIGHT... Sky/weather.........Mostly clear (5-15 percent). CWR.................0 percent. LAL.................1. Min temperature.....68-70. Max humidity........61-66 percent. Wind (20 ft)........West winds 5 to 10 mph shifting to the southwest 6 to 12 mph late in the evening. Mixing height.......500 ft AGL. Transport winds.....West around 10 mph. Haines Index........3 or very low potential for large plume dominated fire growth. .THURSDAY... Sky/weather.........Sunny (0-10 percent). CWR.................0 percent. LAL.................1. Max temperature.....101-104. Min humidity........12-17 percent. Wind (20 ft)........Southwest winds 7 to 14 mph with gusts up to 20 mph Mixing height.......7600 ft AGL. Transport winds.....Southwest 9 to 12 mph. Haines Index........3 to 4 or very low to low potential for large plume dominated fire growth. $$ Forecaster...Townsend Requested by...Joseph Winckler Type of request...WILDFIRE .TAG 2418243.0/PDT .DELDT 07/17/24 .FormatterVersion 2.0.0 .EMAIL joseph.j.winckler.nfg@army.mil