What is the "Polar Vortex"?

What is the "Polar Vortex"?

What is the "Polar Vortex"?

When a significant snowstorm or cold snap arrives, you may hear it blamed on the "Polar Vortex."

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A large sinkhole in the middle of a street in Omaha, Nebraska

A large sinkhole in the middle of a street in Omaha, Nebraska

Historic blizzard halted over 90% of flights

Historic blizzard halted over 90% of flights

Extreme Weather

Successful helicopter rescue of a hiker on the Appalachian Trail

Successful helicopter rescue of a hiker on the Appalachian Trail

Successful helicopter rescue of a hiker on the Appalachian Trail

Successful helicopter rescue of a hiker on the Appalachian Trail

The National Wildfire spreading through Collier County, Florida

The National Wildfire spreading through Collier County, Florida

Wedding transformed into a winter wonderland during historic blizzard

Wedding transformed into a winter wonderland during historic blizzard

Staten Island buried in snow after historic blizzard

Staten Island buried in snow after historic blizzard

Smoke drifts into Fort Lauderdale, Florida, amid the National Wildfire

Smoke drifts into Fort Lauderdale, Florida, amid the National Wildfire

New York City Sanitation Department goes all out clearing streets after historic blizzard

New York City Sanitation Department goes all out clearing streets after historic blizzard

The National Wildfire spread across 25,000 acres in South Florida

The National Wildfire spread across 25,000 acres in South Florida

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