A shifting polar vortex will allow multiple rounds of Arctic air to invade the central and eastern United States through the first half of December. The cold waves will be accompanied by opportunities ...

Michigan could see a return of Arctic air around Thanksgiving as models suggest a possible wobble in the polar vortex, which ...

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

The polar vortex is on the move with its Arctic blasts, but so are storms packing snow and ice. The weather pattern setting ...

Early-season stratospheric warming events spark hype around frigid temperatures. Learn the myths and the science about the ...

A significant change in the atmosphere means the weeks after Thanksgiving could be colder and snowier than normal across ...

A possible wobble in the polar vortex could soon push frigid air into the northern U.S., and Ohio could see more arctic air around Thanksgiving.

Lake-effect snow is back in the forecast for New York this week as a fast-moving clipper storm from the Rockies moves across ...

Meteorologists are observing the beginnings of a polar vortex in much of the U.S. But how does this impact Thanksgiving day ...