The Ash Wednesday Storm of 1962 occurred on March 6–8, 1962 along the mid-Atlantic coast of the United States. It was considered by the U.S. Geological Survey to be one of the most destructive storms ever to affect the mid-Atlantic states. One of the ten worst storms in the United States in the 20th century, it lingered through five high tides over a three day period, killing 40 people, injuring over 1,000 and causing hundreds of millions in property damage in six states.
Ash Wednesday Storm of 1962 on Wikipedia.
The worst Nor’easter of the 20th century.