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 ...

he term “polar vortex” usually refers to the gigantic circular upper air weather pattern in the Arctic region, enveloping the North Pole The term “polar vortex” usually refers to the ...

Corey Williams in Detroit; Sophia Tareen in Chicago; and Matthew Brown in Billings, Montana, contributed to this report. LOUISVILLE, Ky. — Harsh weather moved west on Monday as a polar vortex ...

(AP) — Harsh weather moved west on Monday as a polar vortex was expected to grip the ... Sophia Tareen in Chicago, Nadia Lathan in Austin, Texas, John Raby in Cross Lanes, West Virginia, Matthew ...

Bitter cold temperatures are expected to continue throughout the week in Chicago, with wind chills plunging to minus 20, the National Weather Service said. A cold weather advisory is in effect ...