Severe Weather

Video footage shot from the ground shows several planes swaying in the powerful winds as they approached Heathrow Airport. Several jetliners could be seen aborting their landing and climbing back up into the sky.

You may have gotten one of those loud mobile alerts telling you about something called a "snow squall." So what the heck is it and why is it so dangerous? Glad you asked.

A powerful storm that is sweeping through the New York area is expected to have many potentially dangerous effects, especially on Long Island and southeastern Connecticut where winds of 30 mph to 40 mph with gusts up to 65 mph could hit through late Friday morning.

The temperature dropped nearly 20 degrees in less than an hour in New York City Friday.

The man is one of several fatalities that occurred on Long Island during the storm, including an elderly man who fell into a swimming pool in Cutchogue and drowned while shoveling snow.

Police say that the elderly man was shoveling snow around a swimming pool early Saturday morning when he fell in and drowned.

Much of Long Island is under a blizzard warning, with at least a foot of snow expected to fall in many places.

Snowfall totals of up to one foot, with locally higher amounts, are possible in New York City, along with strong winds and brutal cold.

Bomb cyclones, nor'easters, snowstorms — these terms describe severe weather events. Indeed, a bomb cyclone nor'easter snowstorm can be especially intense and potentially dangerous. Here is what you need to know.

Nor'easters are strong storms that affect the eastern U.S., especially the tristate New York City area. Here is what you need to know to prepare for these potentially dangerous weather events, which are most intense in the winter and can bring large amounts of snow and rain to your community.