This is completely normal when a control tower and or Center radar facility is shutdown....usually we see that for weather over the airport.... so no takeoffs or landings. You saw this when ORD Center lost power years ago.
They can transfer some operations to another Center, and they can also go to the old way before radar....increased spacing. Thus reduced takeoffs and landings....no pilots on this board?
So with dulles has the Mike radius been updated.
This is completely normal when a control tower and or Center radar facility is shutdown....usually we see that for weather over the airport.... so no takeoffs or landings. You saw this when ORD Center lost power years ago.
They can transfer some operations to another Center, and they can also go to the old way before radar....increased spacing. Thus reduced takeoffs and landings....no pilots on this board?