The weakening but still volatile weather system was moving Monday into the U.S. Southeast and Mid-Atlantic, bringing thunderstorms, hail, damaging winds and the potential for more tornadoes.

Meanwhile, the severe weather threat will linger through Sunday from Florida northward into the upper Ohio River Valley, forecasters warned.

A powerful storm system that tore across the United States in recent days is winding down Monday, but in its wake are devastated communities across states hit with violent tornadoes, wildfires and dust storms spun off by the massive system.

According to the SPC: “The HIGH risk area almost always means a major severe weather outbreak is expected, with great coverage of severe weather and enhanced likelihood of extreme severe (i.e., violent tornadoes or extreme convective wind events over a large area).”

A video recorded in Calera, Alabama, shows significant damage left behind after powerful storms swept through the region over the weekend. The powerful storm system responsible for the damage has left more than 30 people dead from tornadoes and a dust storm.

At least seven tornadoes hit Alabama on Saturday, and that number will likely climb even higher later today. The National Weather Service plans to continue looking at storm damage and has several areas that will be visited by storm survey teams today (Monday).

At least three people were confirmed dead in Alabama after a wave of severe storms spawned tornadoes across the state throughout Saturday evening, causing power outages, downed trees and destroyed structures.

The National Weather Service has survey teams out across Alabama on Sunday surveying damage after many tornadoes are reported to have touched down around the state.