A major winter storm set to slam the U.S. later this week has shifted its path slightly before it arrives on Friday.

More than 160 million people across the United States are expected to face winter weather hazards that could cripple their daily lives in coming days, as roads are covered in snow and ice and power lines break from the weight of accumulating ice, according to the National Weather Service’s Weather Prediction Center.

Several emergency declarations have already been issued as a massive winter storm barrels toward more than 35 states, putting more than 200 million people in its path and threatening “considerable disruption” to New York with up to a foot of snow.

Millions of Americans across the South are forecast to be slammed by ice storms in the coming days as crippling ice accretion threatens widespread power outages, major transportation disruptions, falling trees and downed power lines.