A strong cold front is expected to trigger severe weather across the Tennessee and Ohio Valleys today. The clash between warm, humid air and cooler, drier air from the Upper Midwest will create conditions ripe for thunderstorms this afternoon and evening. The Storm Prediction Center has issued a Slight Risk for the region, placing cities such as Nashville, Lexington, and Charleston at risk. Residents should be prepared for the possibility of damaging winds, large hail, and isolated tornadoes.