Forecasters are watching for a potential winter storm that will move up the East Coast. Here's the latest snow projections.

According to the National Oceanic and Atmospheric Administration, a bombogenesis, or bomb cyclone, is a mid-latitude cyclone that rapidly or explosively intensifies over 24 hours. The storm's central pressure usually has to drop 24 millibars in 24 hours.

An unusually sudden and violent storm will hit part of the Atlantic Coast this weekend, with the worst

The greater Philadelphia region will experience no weekend letup in the prolonged cold snap gripping the area.