Black Ice Warning: Charlotte area side streets icy

North Carolina and several southern states hit hard by a wintry storm were bracing early Tuesday for plunging temperatures that could refreeze melting snow and make roads more treacherous.

Scores of schools in Virginia and North Carolina were remaining closed for a second day. Georgia also announced a late start for state government workers because of fears about ice on roads.

CHECK THE LIST: Select CMS schools closed, others on 2-hour delay

The storm that blew in over the weekend was blamed for at least three deaths in North Carolina, along with numerous car crashes, power outages and canceled flights.

North Carolina Gov. Roy Cooper said Monday that the worst of the storm had passed, but residents - particularly motorists - should keep watch for dangerous conditions.

Related: Winter storm slams NC with snow, ice, freezing rain

Melting snow and ice could result in slick road conditions Tuesday morning as temperatures fall and moisture refreezes.

[SCHOOL CLOSINGS AND DELAYS]

The Associated Press contributed to this report.