A polar vortex split is expected to bring frigid Arctic air and single-digit temperatures to Ohio and the Great Lakes region later this month. The event is a full split of the vortex, which could lock ...

Wind chills are below zero degrees throughout the First State as a polar vortex grips the region. Wilmington, Dover and Lewes are all reading wind chills below zero degrees as bitter cold winds from ...

A mass of Arctic air from Canada is bringing brutally cold temperatures to the northeastern United States. Vermont is under Extreme Cold Warnings, with wind chills expected to reach 20 to 40 below ...

View post: Missing Lion Cub Sold as Pet at Roadside Zoo Gets a Happy Ending A cold front will bring plunging temperatures and snow to the Northeast this week. Polar vortex disruptions, caused by ...

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Don't put away that winter jacket just yet. The polar vortex is expected to be impacted by a sudden warmup of the stratosphere, which will bring freezing temperatures to the Northeast this weekend and ...

The polar vortex collapsed, and severe temperatures are set to dominate most of the country in the coming days. Single-digit temperatures are forecast for much of the Northeast, and subzero ...

As the Great Lakes region braces for a predicted near-record cold this weekend, Michiganians are again cursing the dreaded "polar vortex." But what exactly is this meteorological menace? And why is it ...

WASHINGTON (AP) — Warm Arctic waters and cold continental land are combining to stretch the dreaded polar vortex in a way that will send much of the United States a devastating dose of winter weather ...

A forecast map reveals which states can expect to see "persistent cold" in the weeks ahead, after experts said the polar vortex would unleash waves of icy air across parts of the U.S. through January.

This story has been edited to correct an error. Judah Cohen is affiliated with the Massachusetts Institute of Technology. Our old wintertime friend the polar vortex ...