Heat Advisory: Eastern Columbia River Gorge of Oregon; Lower Columbia Basin of Oregon; Grande Ronde Valley; Wallowa County; Northern Blue Mountains of Oregon; Southern Blue Mountains of Oregon; John Day Basin; Ochoco-John Day Highlands; Foothills of the Northern Blue Mountains of Oregon; Foothills of the Southern Blue Mountains of Oregon; North Central Oregon; Central Oregon; Eastern Columbia River Gorge of Washington; Kittitas Valley; Yakima Valley; Lower Columbia Basin of Washington; Foothills of the Blue Mountains of Washington; Northwest Blue Mountains; Simcoe Highlands; Lower Slopes of the Eastern Washington Cascades Crest

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Heat Advisory — Eastern Columbia River Gorge of Oregon; Lower Columbia Basin of Oregon; Grande Ronde Valley; Wallowa County; Northern Blue Mountains of Oregon; Southern Blue Mountains of Oregon; John Day Basin; Ochoco-John Day Highlands; Foothills of the Northern Blue Mountains of Oregon; Foothills of the Southern Blue Mountains of Oregon; North Central Oregon; Central Oregon; Eastern Columbia River Gorge of Washington; Kittitas Valley; Yakima Valley; Lower Columbia Basin of Washington; Foothills of the Blue Mountains of Washington; Northwest Blue Mountains; Simcoe Highlands; Lower Slopes of the Eastern Washington Cascades Crest Severity: Moderate. Certainty: Likely. * WHAT...Hot conditions with afternoon high temperatures of 95 to 105 degrees expected. This will pose a moderate to major risk of heat-related illness. * WHERE...Portions of central, north central, and northeast Oregon and central, south central, and southeast Washington. * WHEN...Until 10 PM PDT Friday. * IMPACTS...Hot temperatures may cause heat illnesses.