Hurricane Helene, which left massive destruction along the Florida coast since making landfall Thursday, is now causing historic flooding, wide-ranging power outages, and other damage in an 800-mile northward path that's affecting the Carolinas, Tennessee, Georgia, and other states.

At least 14 people have died in, Spartanburg, and Anderson counties since the storm tore through the region, many crushed by falling trees

Days of driving rain followed Helene slamming into Florida's Gulf Coast on Thursday night. More than 3 million customers faced power outages over the weekend after unprecedented storm surges, ferocious winds and perilous conditions that extended hundreds of miles inland.