"Severe Weather Alert: Massive Thunderstorms and Tornadoes to Impact 50 Million Americans"

A storm system is expected to bring severe weather, including thunderstorms and tornadoes, to the central US, impacting around 50 million Americans. The severe threat will move from the Southern Plains to the Ohio Valley on Monday and then to the Tennessee and Ohio Valleys on Tuesday. The storm system may also bring snow and freezing rain to the north-central Plains and Great Lakes region. April typically sees an increase in severe weather outbreaks, and the current La Niña phase may contribute to more active severe weather events.