Heavy snow, extreme cold gives Southern US a wintry blast

A severe winter storm is affecting the South, causing school closures and travel disruptions. Atlanta has experienced significant snowfall, leading to business closures and flight cancellations across major airports. The storm extends from Oklahoma to Virginia, with ice posing a major threat in the afternoon.

What weather conditions are affecting the South according to the text?

How much snowfall has metro Atlanta experienced in the last three hours?

What impact has the winter weather had on travel according to the text?

Which states are mentioned as being under winter storm warnings?

What is the primary threat expected in the afternoon as mentioned in the text?