667 WWUS76 KPDT 110333 NPWPDT URGENT - WEATHER MESSAGE National Weather Service Pendleton OR 833 PM PDT Tue Jun 10 2025 ORZ041-044-507-508-510-WAZ024-026>029-110445- /O.EXP.KPDT.HT.Y.0001.000000T0000Z-250611T0400Z/ Eastern Columbia River Gorge of Oregon-Lower Columbia Basin of Oregon-Foothills of the Northern Blue Mountains of Oregon- Foothills of the Southern Blue Mountains of Oregon-North Central Oregon-Eastern Columbia River Gorge of Washington-Kittitas Valley- Yakima Valley-Lower Columbia Basin of Washington-Foothills of the Blue Mountains of Washington- Including the cities of Boardman, Maupin, Arlington, Athena, Prosser, Hermiston, Sunnyside, Tri-Cities, Walla Walla, Connell, Condon, Naches, Yakima, Waitsburg, Pendleton, Ellensburg, Toppenish, The Dalles, Dufur, Dayton, White Salmon, Pilot Rock, Ione, Heppner, Fossil, Moro, and Thorp 833 PM PDT Tue Jun 10 2025 ...HEAT ADVISORY WILL EXPIRE AT 9 PM PDT THIS EVENING... Temperatures are expected to cool across the region tomorrow into the weekend, with HeatRisk values lowering below advisory criteria after this evening. Therefore, will allow the heat advisories to expire this evening. $$ BL