Blizzard-like conditions stemming from a ” bomb cyclone ” were starting to bring heavy snow to the Southeast and were ushering in frigid temperatures to much of the East Coast Saturday, as tens of thousands of homes and businesses remained without power after being hit by a different icy storm last week.

About 240 million people were under cold weather advisories and winter storm warnings, a forecaster said. The frigid cold was expected to plunge as far south as Florida. Some areas unaccustomed to snow were bracing for several inches to fall by Sunday.

The powerful winter storm system came after another blast of snow and ice last weekend snarled traffic, knocked down trees, and caused more than 100 deaths.

A low temperature of minus 27 degrees Fahrenheit was recorded Saturday morning in West Virginia, said Bob Oravec, lead meteorologist for the National Weather Service in College Park, Maryland.

Parts of the southern Appalachians, the Carolinas and Georgia could see 6 to 10 inches of snow, he said. The Carolinas could see blizzard conditions stemming from the bomb cyclone, a term Oravec used to described an intense, rapidly strengthening storm system off the Southeast coast packing strong winds.

In Myrtle Beach, South Carolina — whose official seal is the sun, palm trees and a sea gull — 6 inches of snow was expected. The city has no snow-removal equipment, and authorities planned to “use what we can find,” Mayor Mark Kruea said.