Sherman County

Heat Advisory issued July 20 at 3:16PM PDT until July 23 at 9:00PM PDT by NWS Pendleton OR

* WHAT...Hot conditions with temperatures up to 100 to 103 degrees expected, with 101 to 105 degrees in the Columbia Basin. This will pose a moderate to major risk of heat-related illness. * WHERE...Eastern Columbia River Gorge of Oregon and Washington, Lower Columbia Basin of Oregon and Washington, Foothills of the Northern Blue Mountains of Oregon, Yakima Valley, and Foothills of the Blue Mountains of Washington. * WHEN...From 11 AM Tuesday to 9 PM PDT Thursday. * IMPACTS...Hot temperatures may cause heat illnesses. * ADDITIONAL DETAILS...The heat will begin on Tuesday, with widespread moderate and locally major HeatRisk. Wednesday looks to be the hottest day, with Major HeatRisk across the Columbia Basin, Yakima Valley and portions of the Gorge and Blue Mountain Foothills. Thursday will also see widespread moderate HeatRisk and locally major HeatRisk, mainly across the Columbia Basin. Smoke from area wildfires could end up affecting how hot temperatures get.