Weekend winter storm nor'easter bringing bomb cyclone
Digest more
An arctic blast and a bomb cyclone could hit the Eastern U.S. simultaneously this weekend, causing another winter storm.
A bomb cyclone, also known as bombogenesis, happens when a mid-latitude storm system strengthens very quickly, usually over the course of about 24 hours. According to the National Oceanic and Atmospheric Administration, this rapid shift is marked by a sharp drop in air pressure.