Dr. Amy Butler with the National Oceanic and Atmospheric Administration says the early polar vortex disruption is unusual and ...

Maine has plunged into an arctic freeze before winter has even officially arrived and these bitter temperatures may stick ...

The first of three rounds of cold Arctic air from a shifting polar vortex has sent temperatures plunging across the central and eastern U.S., threatening centuries-old record lows in cities and towns ...

Temperatures dropped to near zero — with wind chills in the negatives — Thursday night into Friday morning as the chilly air ...

Arctic air is taking cold to another level this week and the US could be facing bouts of it well into December thanks to the polar vortex.

Cold temperatures are set to continue on Monday, but New England will feel another icy blast of Arctic air linked once again ...

But the frigid lows didn't quite break records, though they came close, according to the National Weather Service.

Parts of the United States could see “extreme” cold as Earth’s most frigid temperatures could arrive during the holiday ...

An Arctic blast is expected to bring below-average temperatures to the central U.S. and New England in late November and early December. A weakening polar vortex, influenced by a rare weather ...

The first of three rounds of cold Arctic air from a shifting polar vortex has sent temperatures plunging across the central and eastern U.S., threatening centuries-old record lows in cities and towns ...