Thousands of flight delays and cancellations sweep the US on Saturday, FlightAware reports.
The NWS predicts "potentially life-threatening" weather conditions across the US.
As a result, nearly 2,000 flights were canceled and 3,000 were delayed in the US as of Saturday morning, according to flight tracking site FlightAware.
Passengers waited at airports for hours in the hopes of boarding a flight during extreme weather conditions.
On Friday, the US experienced nearly 6,000 flight cancellations and over 11,000 delays due to the winter storms with Seattle, Chicago, Denver, and New York City claiming the most cancellations, FlightAware data shows.