A powerful polar vortex slams an already-frozen state as NOAA warns the deep freeze could last for weeks, bringing extreme ...

Three separate rounds of Arctic air have already swept across the central and eastern United States through mid-December, ...

Americans have been warned to brace for more winter storms as Arctic winds are set to dump more ice and snow amid freezing ...

The stratospheric polar vortex is expected to strengthen at the beginning of 2026. This phenomenon typically leads to the following conditions: Reduced likelihood of extended cold air outbreaks across ...

The polar vortex has broken, and severe temperatures are set to dominate most of the country in the coming days. Temperatures in the 10s are forecast for much of the Northeast, and subzero ...

The polar vortex has broken, and severe temperatures are set to dominate most of the country in the coming days. Temperatures in the 10s are forecast for much of the Northeast, and subzero ...

Another Arctic blast is on the move toward the U.S., bringing the potential for bitter cold and heavy snow accumulations to ...

Nearly all of New England has seen its share of frigid cold days and record mountain snow so far this November — and looking ahead, we’re about to get hit with another blast of Arctic air from a ...

The polar vortex has broken, and severe temperatures are set to dominate most of the country in the coming days. Temperatures in the 10s are forecast for much of the Northeast, and subzero ...

Cold, Arctic air is severe. Fortunately, year-round, that air is usually kept tightly contained in the North Pole. Arctic wind patterns create a sort of wall around the pole that prevents frigid air ...