OKLAHOMA CITY — Thousands of flights across the U.S. set to take off over the weekend were canceled as a monster storm started to wreak havoc Saturday across much of the country, knocking out power and snarling major roadways with dangerous ice.
Widespread heavy snow, sleet and freezing rain threatened nearly 180 million people — more than half the U.S. population — in a path stretching from the southern Rocky Mountains to New England, the National Weather Service said Saturday night. It warned people to brace for a string of frigid days.
''The snow and the ice will be very, very slow to melt and won't be going away anytime soon, and that's going to hinder any recovery efforts,'' said Allison Santorelli, a meteorologist with the National Weather Service.
President Donald Trump had approved emergency declarations for at least a dozen states by Saturday, with more expected to come. The Federal Emergency Management Agency pre-positioned commodities, staff and search and rescue teams in numerous states, Homeland Security Secretary Kristi Noem said.
''We just ask that everyone would be smart – stay home if possible,'' Noem said.
As crews in some southern states began working to restore downed power lines Saturday, officials in some eastern states issued final warnings to residents.
''We are expecting a storm the likes of which we haven't seen in years," New Jersey Gov. Mikie Sherrill said Saturday while announcing restrictions on commercial vehicle travel and a 35 mph (56 kph) speed limit on highways. She added: ''It's a good weekend to stay indoors.''
Power outages hit Louisiana and Texas