Spot Forecast
Issued by NWS Pendleton, OR
Issued by NWS Pendleton, OR
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315 FNUS76 KPDT 132223 FWSPDT Spot Forecast for Upper Pine...USFS National Weather Service Pendleton OR 323 PM PDT Sat Jul 13 2024 Forecast is based on forecast start time of 1800 MDT on July 13. ***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 FOR HOT, DRY, AND UNSTABLE CONDITIONS IN EFFECT UNTIL 11 PM PDT SUNDAY... ...HEAT ADVISORY IN EFFECT UNTIL 11 PM PDT THIS EVENING... .DISCUSSION...A very dry airmass combined with unstable conditions will help promote extreme fire behavior both today and tomorrow. Locally breezy conditions will be possible in the afternoons. There is also a slight chance of an isolated thunderstorm developing near the site late Sunday afternoon due to this oncoming weather system, however confidence is very low (<15%) in storms occurring due to the dry atmosphere in place. .TONIGHT... Sky/weather.........Partly cloudy (35-45 percent) then becoming mostly cloudy (60-70 percent) then becoming partly cloudy (45-55 percent). Smoke in the evening, then areas of smoke late in the evening. CWR.................1 percent. LAL.................1. Min temperature.....64-67. Max humidity........26-31 percent. Wind (20 ft)........West winds 5 to 8 mph with gusts to around 17 mph in the evening becoming light, then becoming west 5 to 7 mph overnight. Gusty and erratic winds expected near thunderstorms in the evening. Ridgetop wind.......West winds 7 to 12 mph with gusts to around 20 mph. Mixing height.......14100 ft AGL early in the evening. Transport winds.....West around 22 mph decreasing to around 8 mph in the late evening and overnight. Haines Index........5 or moderate potential for large plume dominated fire growth. TIME (MDT) 7 PM 9 PM 11 PM 1 AM 3 AM 5 AM Temp............94 86 76 72 70 68 RH..............13 16 23 26 27 29 20 ft wind......W 8 W 5 W 5 W 4 W 5 W 5 20 ft wind gust.17 13 13 6 6 6 .SUNDAY... Sky/weather.........Partly sunny (50-60 percent). Areas of smoke, then smoke late in the afternoon. CWR.................6 percent. LAL.................1. Max temperature.....91-94. Min humidity........8-13 percent. Wind (20 ft)........West winds 5 to 8 mph. Gusts up to 20 mph late in the afternoon. Gusty and erratic winds expected near thunderstorms late in the afternoon. Ridgetop wind.......West winds 7 to 12 mph with gusts between 20 to 25 mph in the afternoon. Mixing height.......12500 ft AGL in the late morning and afternoon. Transport winds.....West 8 to 17 mph. Haines Index........4 to 5 or low to moderate potential for large plume dominated fire growth. .SUNDAY NIGHT... Sky/weather.........Partly cloudy (30-40 percent). Smoke in the evening, then areas of smoke late in the evening. CWR.................6 percent. LAL.................1. Min temperature.....Around 60. Max humidity........35-40 percent. Wind (20 ft)........West winds 5 to 8 mph becoming 5 to 7 mph late in the evening. Gusty and erratic winds expected near thunderstorms in the evening. Ridgetop wind.......West winds 5 to 10 mph. Mixing height.......12500 ft AGL early in the evening. Transport winds.....West 8 to 17 mph. Haines Index........4 or low potential for large plume dominated fire growth. .MONDAY... Sky/weather.........Sunny (15-25 percent). Areas of smoke. CWR.................1 percent. LAL.................1 until 1700. Max temperature.....Around 90. Min humidity........8-13 percent. Wind (20 ft)........West winds 5 to 8 mph. Gusts up to 20 mph late in the afternoon. Ridgetop wind.......West winds 7 to 12 mph with gusts 20 to 25 mph in the afternoon. Mixing height.......11400 ft AGL in the late morning and afternoon. Transport winds.....West 8 to 13 mph. Haines Index........4 or low potential for large plume dominated fire growth. $$ Forecaster...Lawhorn Requested by...Scott MacDonald, FBAN NW 8 Type of request...WILDFIRE .TAG 2417901.2/PDT .DELDT 07/12/24 .FormatterVersion 2.0.0 .EMAIL ebb-6241@charter.net