Massive winter storm triggers widespread power outages and thousands of US flight cancellations

What’s happening

A powerful winter storm sweeping across large parts of the United States is driving dangerous travel conditions, widespread power outages and major disruptions at airports. The system is pushing snow, sleet and freezing rain across a long corridor that reaches from the southern and central U.S. toward the Mid-Atlantic and the Northeast. Forecasters have warned that the mix of ice and snow could make roads treacherous, weigh down power lines, and slow restoration efforts in the hardest-hit areas.

By Sunday, the storm had already forced large-scale airline disruptions, with a flood of cancellations and delays affecting major hubs. Airlines advised travelers to check flight status frequently and use online tools to rebook, as schedules shifted through the day. Airports along the East Coast and in the South faced de-icing constraints and runway operations challenges, while carriers tried to reposition staff and equipment to keep up with rapidly changing conditions.

Power outages and emergency actions

The storm’s ice and wind have contributed to significant power outages across multiple states. Utilities and emergency managers warned that restoration may take time where ice accumulation is heavy, because crews must work through unsafe conditions and blocked access. Officials urged residents to conserve heat, stock food and water, and avoid unnecessary travel while temperatures remain dangerously low.

Federal and state authorities have taken steps to support the response. Emergency declarations were approved in multiple states to speed the movement of resources. FEMA and other federal agencies prepared to deploy personnel and equipment, while local officials coordinated warming centers and outreach for vulnerable residents. Grid operators also enacted precautions to prevent broader failures as demand surged in freezing weather.

Travel guidance and consumer rights

Travelers affected by cancellations were advised to contact airlines via apps, websites or customer service lines for rebooking options. In many cases, carriers offer fee-free rebooking during severe weather events, though seat availability can be limited. Passengers who decide not to travel after a cancellation are generally entitled to a refund under U.S. rules, including fees paid for extras such as checked bags, even when the ticket was labeled nonrefundable.

Forecasters expect the storm’s impacts to continue into Monday, with a wide swath of the country still at risk for ice, heavy snow and bitter cold. Officials continue urging people to stay off roads, prepare for potential outages, and monitor local alerts as conditions evolve.