A brutal "polar vortex" gripped much of the Midwest on Monday, pushing temperatures to record subzero lows, grounding more than 4,000 flights and prompting authorities to urge residents to stay home or go to emergency warming shelters.
In Chicago, temperatures dropped to a record 16 degrees below zero at O'Hare International Airport on Monday, spawning a new National Weather Service Twitter hashtag: #Chiberia. Records also fell in Oklahoma, Texas and Indiana.
In Minneapolis, it was minus 18 — minus 40 with the wind chill — and the high was minus 12. Margaret Roth found herself stranded in the Twin Cities, where she had arrived from Florida for a...
Conductor Edwin Bogan Sr. waits for the inaugural ride on the new Metra Electric Highliner cars.