Yet authorities cautioned Thursday that threats remain.
Georgia Gov. Nathan Deal said he was extending a state of emergency through Sunday.
National Weather Service meteorologist Rick Davis said the storm lived up to predictions it would be "catastrophic" and historic.
Davis said the widespread power outages and the amount of ice, sleet and snow make it comparable to some of the worst storms in metro Atlanta history.
Utility companies say about 382,000 customers in Georgia were without power Thursday morning, as the statewide total of customers who lost power since the storm began neared 700,000.
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