A massive winter storm is wreaking havoc across the nation, causing widespread power outages, travel chaos, and dangerously cold temperatures. Over 900,000 customers in the mid-Atlantic and Southern states are without power, with officials warning that restoration efforts could take days, particularly in areas like Nashville that have been severely impacted. The storm has already led to the cancellation of more than 16,000 flights, stranding travelers and disrupting supply chains. Schools have been forced to close or switch to online learning as heavy snow blankets the Northeast.