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

Deep penetration of cold temperatures and a coastal storm will bring bomb cyclone and polar vortex into your newsfeeds.

A powerful storm will develop off the Southeast coast this weekend amid brutal cold. This bomb cyclone will bring snow and strong winds to parts of the East Coast as it moves north.

DENVER — The weather during the week of Thanksgiving will get very interesting, with the remnants of a bomb cyclone and a polar vortex within a seven-day span. The remnants of a bomb cyclone that has ...

Winter Storm Fern aftermath continues as the East Coast braces for a bomb cyclone and polar vortex, with heavy snow and ...

Michigan is set for several days of frigid temperatures and heavy lake-effect snow as Arctic air continues its slow march ...

There are certain weather buzzwords that seemingly come out of nowhere. In recent years, things like the polar vortex, atmospheric river and pineapple express have appeared in national weather ...