Spot Forecast
Issued by NWS Pendleton, OR
Issued by NWS Pendleton, OR
751 FNUS76 KPDT 232216 FWSPDT Spot Forecast for Rainwater Rx...Bureau of Indian Affairs - Umatilla Agency National Weather Service Pendleton OR 316 PM PDT Mon Sep 23 2024 Forecast is based on ignition time of 1000 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...A cold front will impact the region through Wednesday night, with winds increasing ahead of the cold front passage in the morning. Current expected arrival time of the front is between 3 to 6PM, with winds increasing and shifting to the west behind the front. Light rain showers will impact the site as well Wednesday, with chances of wetting rain less than 30%. .WEDNESDAY... Sky/weather.........Mostly sunny (20-30 percent) then becoming mostly cloudy (70-80 percent). Slight chance of showers late in the morning. Chance of showers late in the afternoon. Patchy blowing dust late in the afternoon. CWR.................0 percent increasing to 29 percent late in the afternoon. LAL.................1. Max temperature.....Around 80. Min humidity........28-33 percent. Wind (20 ft)........South winds 7 to 12 mph shifting to the southwest 12 to 17 mph after 10AM. Ridgetop wind.......South winds 10 to 15 mph shifting to the west 17 to 25 mph after 11AM. Mixing height.......4100 ft AGL late in the morning. Transport winds.....Southwest 10 to 18 mph shifting to the west around 23 mph late in the afternoon. Haines Index........3 or very low potential for large plume dominated fire growth. TIME (PDT) 10A 11A 12P 1PM 2PM 3PM 4PM 5PM 6PM 7PM 8PM 9PM Temp............72 75 76 76 75 73 70 67 64 61 59 57 RH..............35 32 32 33 36 40 45 50 56 62 67 70 20 FT wind dir..S SW SW SW SW SW SW W W W W W 20 FT wind spd..12 12 12 12 14 14 14 17 17 17 20 20 20 FT wind gust.14 13 13 13 18 18 18 20 20 20 24 24 .WEDNESDAY NIGHT... Sky/weather.........Mostly cloudy (65-75 percent) then becoming mostly clear (15-25 percent). Patchy blowing dust early in the evening. Chance of rain showers. CWR.................29 percent decreasing to 5 percent late in the evening. LAL.................1. Min temperature.....46-49. Max humidity........73-78 percent. Wind (20 ft)........West winds 10 to 20 mph shifting to the southwest after 11PM. Ridgetop wind.......West winds 17 to 25 mph shifting to the southwest 12 to 20 mph after 7PM Mixing height.......1000 ft AGL in the evening. Transport winds.....Southwest 15 to 23 mph. Haines Index........2 to 4 or very low to low potential for large plume dominated fire growth. .THURSDAY... Sky/weather.........Sunny (5-15 percent). CWR.................0 percent. LAL.................1. Max temperature.....62-65. Min humidity........35-40 percent. Wind (20 ft)........Southwest winds 5 to 12 mph shifting to the west 5 to 8 mph after 12PM. Ridgetop wind.......Southwest winds 10 to 17 mph becoming 5 to 10 mph after 11AM. Mixing height.......3500 ft AGL early in the morning. Transport winds.....Southwest 10 to 15 mph. Haines Index........3 to 4 or very low to low potential for large plume dominated fire growth. $$ Forecaster...Lawhorn Requested by...Tristan Spencer Type of request...PRESCRIBED .TAG 2422928.0/PDT .DELDT 09/23/24 .FormatterVersion 2.0.0 .EMAIL tristan.spencer@bia.gov