Nearly half of Thursday’s flights in and out of DFW are canceled Thursday, though crews are treating roads and runways.

As snow, freezing rain and sleet make their way through North Texas this Thursday and early Friday during the winter storm, most schools and offices are closing their doors, but many other services will remain open.

Ice and snow are accumulating on bridges and overpasses of major highways, according to TxDOT. Motorists should drive with caution and expect traffic delays.