A powerful storm system is sweeping across the U.S., bringing a dangerous mix of severe weather, including tornadoes, flooding, heavy snow and high winds, impacting millions from the West Coast to the East Coast.

Another winter storm is in the forecast this week, which will help the snowpack along the Wasatch Front as well as Southern Utah.

More than 55 million people across the central and southern US are at risk of severe weather on Tuesday as a violent storm sweeps across the country, bringing the potential for blizzard conditions, tornadoes and fire weather.

Officials are rushing to reschedule Mardi Gras celebrations and warning revelers against brining umbrellas and tents as powerful storms with a threat of tornadoes are expected to strike Louisiana and

New Orleans moved up its two biggest Mardi Gras Day parades and cut down their routes to try to avoid the potentially destructive weather. Police are also expected to keep the hundreds of participants and dozens of floats moving quickly so they finish before winds are expected to pick up,