Overview
- PowerOutage trackers reported roughly 700,000 to more than 850,000 customers without electricity by Sunday, with Tennessee hardest hit and 100,000-plus outages each in Louisiana, Texas and Mississippi.
- FlightAware counted over 13,000 U.S. cancellations for the weekend, with major disruptions at airports serving Washington, Philadelphia, New York and Dallas–Fort Worth.
- States issued emergency declarations as President Donald Trump approved federal disaster declarations and FEMA pre-positioned supplies, personnel and search-and-rescue teams.
- The Department of Energy issued emergency orders to bolster grid operations, while heavy ice snapped trees and downed lines across parts of the South.
- The National Weather Service said snow, sleet and freezing rain stretched from the southern Rockies to New England, with lingering snow into Monday and deep cold keeping roads and sidewalks hazardous.