In Kentucky, Louisville recorded 7.7 inches of snow on Sunday, shattering the date's previous record of 3 inches set in 1910.

The polar vortex has taken on an unexpected pattern this winter — one that’s made part of the United States the most unusually cold place on the planet, at least so far this year.

The polar vortex itself is nothing new, even if you see the term used more frequently. It’s also not confined to the U.S. and can influence weather in parts of Europe and Asia.

Polar vortex triggers extreme cold warning in central U.S. as Kentucky flooding death toll rises Updated on: February 18, 2025 / 6:10 AM EST / CBS/AP ...

This week, parts of the U.S. are experiencing the 10th and coldest polar vortex event this season. Weather forces in the Arctic are combining to push the chilly air into the U.S. and Europe.

This week, parts of the U.S. are experiencing the 10th and coldest polar vortex event this season. Weather forces in the Arctic are combining to push the chilly air into the U.S. and Europe.

Harsh weather moved west on Monday as a polar vortex was expected to grip the Rockies and the northern Plains after winter storms pummeled the eastern U.S. over the weekend, killing at least 10 ...

BISMARCK, N.D. — Harsh weather moved west on Monday as a polar vortex was expected to grip the Rockies and the northern Plains after winter storms pummeled the eastern U.S. over the weekend ...

Harsh weather moved west on Monday as a polar vortex was expected to grip the Rockies and northern Plains after winter storms pummeled the eastern U.S. over the weekend, killing at least 12 people ...

Harsh weather moved west as a polar vortex was expected to grip the Rockies and the northern Plains after winter storms pummeled the eastern U.S. over the weekend, killing at least 10 people.

Harsh weather moved west as a polar vortex was expected to grip the Rockies and the northern Plains after winter storms pummeled the eastern U.S. over the weekend, killing at least 10 people.