Frigid air from the North Pole: What's this polar vortex? - CNN

Winter weather grips U.S.

Winter weather grips U.S.

Winter weather grips U.S.

Winter weather grips U.S.

Winter weather grips U.S.

Winter weather grips U.S.

Winter weather grips U.S.

Winter weather grips U.S.

Winter weather grips U.S.

Winter weather grips U.S.

Winter weather grips U.S.

Winter weather grips U.S.

Winter weather grips U.S.

Winter weather grips U.S.

Winter weather grips U.S.

Winter weather grips U.S.

Winter weather grips U.S.

Winter weather grips U.S.

Winter weather grips U.S.

Winter weather grips U.S.

Winter weather grips U.S.

Winter weather grips U.S.

Winter weather grips U.S.

Winter weather grips U.S.

Winter weather grips U.S.

Winter weather grips U.S.

Winter weather grips U.S.

Winter weather grips U.S.

Winter weather grips U.S.

Winter weather grips U.S.

Winter weather grips U.S.

Winter weather grips U.S.

Winter weather grips U.S.

Winter weather grips U.S.

Winter weather grips U.S.

Winter weather grips U.S.

Winter weather grips U.S.

Winter weather grips U.S.

Winter weather grips U.S.

Winter weather grips U.S.

Winter weather grips U.S.

Winter weather grips U.S.

Winter weather grips U.S.

Winter weather grips U.S.

Winter weather grips U.S.

Winter weather grips U.S.

Winter weather grips U.S.

Winter weather grips U.S.

Winter weather grips U.S.

Winter weather grips U.S.

Winter weather grips U.S.

Winter weather grips U.S.

Winter weather grips U.S.

Winter weather grips U.S.

Winter weather grips U.S.

Winter weather grips U.S.

Winter weather grips U.S.

Winter weather grips U.S.

Winter weather grips U.S.

Winter weather grips U.S.

HIDE CAPTION

Uday Kiran

Scott Disick

Revenge

Teen Wolf

Jimmy Fallon