The same storm blanketing Oklahoma communities in white also caused hundreds of flight cancellations in Dallas and dozens in OKC.

Snow will turn into sleet and freezing rain along parts of the Southeast, as well as southern Arkansas, the weather service reported. Forecasters warn that icy conditions, between a tenth and a quarter inch of ice, will make travel dangerous for many. Power outages and downed branches are also a concern.

A winter storm that dropped heavy snow and glazed roads throughout the U.S. South is maintaining its icy grip on much of the region into the weekend