DALLAS — Thousands of power line workers were on standby, flights were canceled and bottled water flew off the shelves Thursday as a huge winter storm that could bring catastrophic damage, widespread power outages and bitterly cold weather barreled toward the eastern two-thirds of the U.S.
The massive storm system is expected to bring a crippling ice storm from Texas through parts of the South, potentially around a foot (30 centimeters) of snow from Oklahoma through Washington, D.C., New York and Boston, and then a final punch of bitterly cold air that could drop wind chills to minus 50 degrees Fahrenheit (minus 46 Celsius) in parts of Minnesota and North Dakota.
Forecasters are warning the damage, especially in areas pounded by ice, could rival a hurricane. About 160 million people were under winter storm or cold weather watches or warnings — and in many places both.
When will it start?
The storm was expected to begin Friday in New Mexico, Texas and Oklahoma, with the worst weather moving east into the Deep South before heading up the coast and thumping New England with snow.
Cold air streaming down from Canada caused Chicago Public Schools and Des Moines Public Schools in Iowa to cancel classes Friday. Wind chills predicted to be as low as minus 35 degrees Fahrenheit (minus 37 Celsius) could cause frostbite within 10 minutes, making it too dangerous to walk to school or wait for the bus.
The cold punch coming after means it will take a while to thaw out, an especially dangerous prospect in places where ice and snow weighs down tree branches and power lines and cuts electricity, perhaps for days. Roads and sidewalks could remain icy well into next week.
Ice can add hundreds of pounds to power lines and branches and make them more susceptible to snapping, especially in windy weather.