NASHVILLE (AP) — About 240 million people were under cold weather advisories and winter storm warnings Saturday as a powerful system threatened to bring howling winds, flooding and heavy snow to the East Coast — including blizzardlike conditions stemming from a “bomb cyclone” in the Southeast, a forecaster said.

Temperatures were plummeting even as tens of thousands of homes and businesses remained without power from a blast of snow and ice last weekend that snarled traffic, knocked down trees, and caused more than 100 deaths. A low temperature of minus 27 degrees Fahrenheit (minus 33 degrees Celsius) was recorded Saturday morning in West Virginia, said Bob Oravec, lead meteorologist for the National Weather Service in College Park, Maryland.