The plunging polar vortex brought subfreezing temperatures Tuesday to some of the southernmost points of the U.S., threatening to dump snow on parts of Texas and Oklahoma in the coming days and ...

The harsh weather was caused by the polar vortex expanding southward. — The polar vortex is a vast area of low-pressure, cold air that rotates like a wheel around both of the Earth’s polar regions.

ROCHESTER, N.Y. — People across the country and the Rochester area are feeling the impact of the polar vortex. While the polar vortex typically stays in the Arctic, its jet stream could weaken in the ...

The forecast calls for the coldest temperatures this week tonight with the upper teens along the Tennessee Valley.

South Florida faces an Arctic blast and polar vortex. Will this cold snap lead to an ultimate measure of cold weather here?

West Virginia is by far the most powerless state in the nation. National electricity outage data show West Virginia has ...

Data from the 2019 polar vortex, which primarily affected the northern Midwest, showed a similar 20% increase in energy ...

December was an active month for weather with quite a range in the temperature. Several times cold air and clear skies were associated with high pressure areas that gave us ...

Much of the U.S. is being blasted by ice, snow and wind, as the polar vortex that dipped south over the weekend is keeping an area stretching from the Rocky Mountains to the coast of Maine in its frig ...

As overnight temperatures dip into the teens and 20s this week, Gov. Dan McKee’s administration on Monday night opened two ...