Atlanta (CNN) - Get off the roads, and stay off.
That was the message in Georgia and the Carolinas as a snow and ice storm swept through Wednesday, bringing some of the Southeast's most populous cities to a standstill.
The warnings came as freezing rain brought heavy ice accumulations from Atlanta to Charlotte. Across a large swath of the South, hundreds of thousands of people were without power and thousands of flights were canceled.
Calling ice the biggest enemy, Georgia Gov. Nathan Deal declared a state of emergency. School districts canceled classes and government offices were shuttered in an attempt to avoid a repeat of the traffic paralysis caused by a storm last month.
Up to three-quarters of an inch of ice was expected to accumulate in Atlanta and up to 10 inches of snow and sleet were expected in Raleigh and Charlotte, making travel treacherous.