FNUS76 KPDT 031839 FWSPDT Spot Forecast for 4th of July Planning...Franklin County Fire District #3 National Weather Service Pendleton OR 1139 AM PDT Thu Jul 3 2025 Forecast is based on forecast start time of 1200 PDT on July 04. ***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...A low-pressure system will move onshore overnight through Friday, facilitating a 20 percent chance of showers and a 5 percent chance of thunderstorms Friday afternoon. Winds will be mostly out of the southwest with some afternoon gusts of around 15 mph. .INDEPENDENCE DAY... Sky/weather.........Mostly cloudy (80-90 percent). 20 percent chance of showers in the afternoon with a 5 percent chance of thunderstorms. Chance of pcpn......20 percent. Chance of lightning.5 percent. Max temperature.....80-83. Min humidity........34-39 percent. Surface winds (mph).Southwest winds 6-10 mph with gusts up to 15 mph. Mixing height.......3500-4000 ft AGL. Transport winds.....South 8-12 mph. TIME (PDT) 12P 1PM 2PM 3PM 4PM 5PM 6PM 7PM 8PM 9PM 10P 11P Chc of ltng (%).0 0 0 0 5 5 5 5 5 5 5 5 Temp............77 78 79 80 81 79 79 77 74 71 69 68 RH..............39 39 39 39 39 39 39 40 44 53 57 57 Surface wnd dir.SW SW SW SW SW SW SW SW S S S SW Surface wnd spd.10 10 10 10 10 10 10 10 8 8 6 6 Surface wnd gst.15 15 15 15 15 15 15 15 15 15 12 12 .FRIDAY NIGHT... Sky/weather.........Mostly cloudy (70-80 percent) then becoming partly cloudy (45-55 percent). Chance of pcpn......0 percent. Chance of lightning.5 percent. Min temperature.....59-62. Max humidity........60-65 percent. Surface winds (mph).Southwest winds 6-10 mph. Mixing height.......500-800 ft AGL. Transport winds.....South 8-12 mph shifting to the west 8-12 mph late in the evening, then shifting to the southwest 6-8 mph overnight. .SATURDAY... Sky/weather.........Mostly sunny (20-30 percent). Chance of pcpn......0 percent. Chance of lightning.0 percent. Max temperature.....88-91. Min humidity........19-24 percent. Surface winds (mph).Southwest winds 6-10 mph with gusts up to 15 mph. Mixing height.......8000-8500 ft AGL. Transport winds.....Southwest 7-11 mph. $$ Forecaster...Plunkett Requested by...Michael Hendricks Type of request...OTHER .TAG 2517218.0/PDT .DELDT 07/03/25 .FormatterVersion 2.0.0 .EMAIL mhendricks@fcfd3.org