By Rich McKay and Tatiana Bautzer (Reuters) -Portions of Pennsylvania, New York and Mid-Atlantic and Southeast states were still under a National Weather Service watch for damaging wind and tornadoes,

The death toll from tornadoes and violent storms that ravaged the central and southern United States over the weekend has risen to at least 40 people, with dozens more injured, local authorities said.

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.

Unusually vicious and damaging weather across multiple U.S. states spawned violent tornadoes, blinding dust storms and fast-moving wildfires over the weekend, leaving at least 39 people dead. In the latest tally of the destruction,

Violent tornadoes and high winds decimated homes, wiped out schools and toppled semitractor-trailers as a monster storm that killed at least 32 people ripped its way across the central and southern U.

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.