Hurricane Helene has left a wake of death and destruction across Florida, Georgia, the Carolinas and Tennessee after it made landfall in Florida on Sept. 26. Despite being downgraded to a tropical depression, hundreds were killed by the storm, millions are still without power, and the damage is estimated in the billions of dollars.

The National Weather Service provided data it collected on tornado formations that occurred during the hurricane in South Carolina.

Hurricane Helene was a historic storm that will be on the minds of those affected for years to come. During the evening of Sept. 26, the storm made landfall along Florida’s Big Bend area as a category 4 with wind speeds of 140 mph.

With at least 215 killed, Helene is already the deadliest hurricane to hit the mainland US since Katrina in 2005.