As one blast of Arctic air pushes out to sea, already a new surge of cold air, driven by a breakdown of the polar vortex, is likely to expand from central Canada and through the midwestern and eastern ...

Another Arctic blast is on the move toward the U.S., bringing the potential for bitter cold in Massachusetts. The Climate Prediction Center (CPC) is forecasting a weakening of the polar vortex, which ...

Long after one blast of Arctic air pushed offshore last week, a new surge of cold air, driven by a breakdown of the polar vortex, expanded from central Canada and to the Midwest on Sunday and will ...