‘Triple-threat megastorm’ to scatter snow, high winds and thunder across US

A powerful storm system is impacting much of the United States, affecting an estimated 200 million people. The "triple-threat megastorm" is bringing a variety of severe weather conditions, including blizzard conditions and impassable roads in the upper Midwest, damaging high winds across the Plains, and thunderstorms in the mid-South. Forecasters predict the storms will move eastward, posing a threat to a large area of the eastern US by Monday. The mid-Atlantic states and Washington DC are at the highest risk for high winds and potential tornadoes. The widespread and varied nature of the storm is causing significant disruption across multiple regions.