Nav Canada, the nonprofit corporation responsible for air traffic control in Canada and over the North Atlantic, said Sunday it had restored its automated flight planning system after the main facility housing the equipment was flooded by a thunderstorm in Ottawa, early Saturday. The flood caused the evacuation of the facility and staff moved to a backup center, and the flight plan system wasn't restored until about 3:30 p.m.
This is a companion discussion topic for the original entry at https://www.avweb.com/flight-safety/flight-tracking/nav-canada-flood-delays-flights