Polar Vortex

CHICAGO (AP) — The bitter cold that gripped the Midwest forced commuters to bundle up like polar explorers. By early next week, many of those same people…

CHICAGO (AP) — The painfully cold weather holding much of the Midwest in a historic deep freeze sent temperatures plunging to record lows Thursday in…

Millions of residents are being asked to turn their thermostats down to ensure there's enough gas for everyone. GM and Ford have suspended some operations in Michigan to help conserve energy.

Frostbite can nip ears in just a few minutes in the sort of temperatures many Americans are facing this week. Pull that hat down and curb the drinking; alcohol can impair your judgment of temperature.

MINNEAPOLIS (AP) — A look at how this week's snowstorm and bitter cold have affected the United States, by the numbers:22 — Number of states that recorded…

CHICAGO (AP) — A blast of polar air enveloped much of the Midwest on Wednesday, closing schools and businesses and straining infrastructure across the…

CHICAGO (AP) — An arctic cold snap has sent temperatures plunging across the Midwest , prompting officials to close schools, businesses and state…

The polar vortex has brought air so incredibly cold it may set low-temperature records. Will it ever be warm again?