Multiple counties were impacted with road closures including Cocke, Greene, Washington, Unicoi, Carter and Johnson Counties.

Major flooding struck parts of eastern Tennessee on September 27, as the Pigeon and French Broad rivers rose significantly and prompted multiple road closures.

TVA's system of dams along the Tennessee River and its tributaries has been tested by record flooding from Hurricane Helene, which drenched Western North Carolina and East Tennessee as a tropical storm , washing out interstate lanes and trapping residents as small streams in the Great Smoky Mountains suddenly became raging rivers.