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Knoxville, Tennessee – A surge of bitter winter air will sweep across East Tennessee and southwest Virginia starting Sunday morning, bringing dangerous wind chills and a prolonged cold stretch through Monday. The cold will be especially severe in the mountains, but even valley locations face near-zero wind chills overnight.
The cold intensifies quickly Sunday as strong northwest winds usher in sharply colder air. Wind chills will fall into the single digits during the day and drop near zero by Sunday night in the Knoxville metro. In higher elevations of the Smokies and Cumberland Plateau, wind chills could plunge to 10 below, with isolated values as low as 15 below on the highest peaks late Sunday night…