What is a polar vortex, and why is it here? - The Washington Post

What is a polar vortex, and why is it here? - The Washington Post

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日期:2026-05-01
The polar vortex that is chilling us this week is a band of low pressure and frigid air centered around the North Pole. ... The polar vortex that is chilling us this week is a band of low pressure Arctic air normally centered around the North Pole. It is ...看更多