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

A huge winter storm has reignited confusion about the polar vortex, the jet stream and what climate change really means for winter weather ...

Michigan is experiencing frigid temperatures and heavy snow due to a dip in the jet stream, not the polar vortex. The polar vortex is a large-scale cyclone of cold air that typically stays far north ...

A severe winter storm that brought freezing rain, sleet and snow to a large part of the U.S. was intensified by the polar ...

A polar vortex has plunged Niagara Falls into extreme cold, freezing mist into ice. Scientists explain the phenomenon, ...

Temperatures like this used to happen regularly across the state, but warming winters have made them far less frequent.

The polar vortex, a mass of frigid Arctic air, pushed southward, causing temperatures around Niagara Falls to drop drastically. This sudden chill led to an extraordinary phenomenon: the mist from the ...

Niagara Falls turns into a frozen wonderland as a powerful polar vortex pushes temperatures below -20°C, freezing mist ...