Storm Affects 30 States, Snarls U.S. Air Travel

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A “life-threatening” storm grounded one-fifth of all scheduled flights in the U.S. today as blizzard warnings were posted for nine states, Chicago faced a record-setting snowfall and ice and snow pelted the Northeast.

The storm affects at least 30 U.S. states from the Rocky Mountains to the Atlantic Ocean, according to the National Weather Service. President Barack Obama, briefed by emergency officials, promised support and urged residents to be prepared.