A group of people walk toward the pedestrian tunnel that connects Hyde Park to Promontory Point as Presidents Day temperatures dropped and stayed cold across the Chicago area on Monday. Tyler ...

Arctic daily sea ice extent continued to hover near record daily lows in January, with the ice edge well northward of its long-term average position in most areas. In contrast to the cold conditions ...

I'm Mimi Kiley reporting. The term "polar vortex" usually refers to the gigantic circular upper air weather pattern in the Arctic region. It is a normal pattern that is stronger in the winter and ...

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Lisa Muscat carries her dog Zoey to safety after a water main break in Detroit caused massive flooding, triggering evacuations, Monday, Feb. 17, 2025. (Andy Morrison/Detroit News via AP) ...

It marks the 10th - and coldest - polar vortex this season so far, with pressure systems pushing cold air from the Arctic southwards into North America and Europe. The polar vortex is a large area ...