Dozens dead as Helene unleashes life-threatening flooding. Dam break is imminent in Tennessee CNNRisk Of ‘Imminent’ Failure: Evacuations Urged As TN Dam Cracks The Weather ChannelWatch: Tennessee dam near ‘imminent’ failure after heavy rain from Helene Fox Weather TVA: Nolichucky Dam failure is imminent, could cause life-threatening flooding WJHL-TV News Channel 11Nolichucky River crested, dam remains intact, TVA says WVLT