Deep Freeze

Track the polar vortex and find the latest news on wind chill, the coldest temperatures and more.

Image: Lake Michigan

Scott Olson / Getty Images

Deep Freeze 2019

At least 9 dead as polar vortex keeps its frigid grip on the Midwest

Image: NOAA satellite image of extreme cold weather phenomenon called the polar vortex over the U.S. Midwest and Great Lakes regions

NOAA / via Reuters

Deep Freeze 2019

Here's how the brutal cold impacted the U.S.

Image: A pedestrian walks through snow-covered McPherson Square in Washington on Feb. 20, 2019.

Eva Hambach / AFP - Getty Images

A Better Way

More winter weather is on its way. Here's how to keep your home safe.

More winter weather is on its way. Here's how to keep you, your pets and your home safe.

Residents across Midwest capture effects of polar vortex

Jan. 31, 201901:06

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Residents across Midwest capture effects of polar vortex

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How to keep pets active indoors during the polar vortex

01:27

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Town of Hell, Michigan freezes over in polar vortex

02:01

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Leaking water tower coats Minnesota town streets with ice

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Chicago residents capture strange results of record low temps

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Environment

Watch the polar vortex shift ominously in view from space

Image: A man moves luggage in snow during a winter storm in Buffalo, NY

Lindsay Dedario / Reuters

In Focus

Photos: Polar vortex plunges vast swath of U.S. into deep freeze

Image: Polar vortex to bring sub-zero temperatures

Kamil Krzaczynski / EPA

Deep Freeze 2019

Record cold delays some Amazon deliveries, grounds more than 1,500 flights

Image: Polar vortex to bring sub-zero temperatures

Kamil Krzaczynski / EPA

Deep Freeze 2019

How to prepare for the polar vortex

Nightly News

Bone-chilling cold in the U.S. sparks climate change skepticism as experts speak out