List of Northeast snowfall impact scale winter storms

The Northeast snowfall impact scale (NESIS) is a scale used to categorize winter storms in the Northeast United States. The scale was developed by meteorologists Paul Kocin and Louis Uccellini, and ranks snowstorms from category 1 ("notable") to category 5 ("extreme").

Source: Wikipedia — List of Northeast snowfall impact scale winter storms (CC BY-SA 4.0)