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.

ORLANDO, Fla. – In recent years, terms like “bomb cyclone” and “polar vortex” have made their way into popular discourse, often attached to dramatic weather events. While these terms may sound like ...

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

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 ...

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

Thirty kilometers above the Arctic, something unusual is happening. The polar vortex-that massive cyclone of frigid air that normally keeps the cold locked over the North Pole-is weakening and warping ...