"...but I suspect the roof will fall onto the field........"
The upoper surface of that dome is a perfect airfoil. If the wind finds a way inside, you have all the ingredients for a classical lifted roof failure.
My money's on Houston for a landing point.
Did you alert NASA for a possible UFO landing? LOL
The reason I wouldn't want to be in the Superdome is that, even though it's big and strong, in such strong winds all it takes is large wind-driven debris breaking a hole in the side of the dome and the wind would continue to break open the hole and then who knows.
There are lots of houses that could withstand winds of average hurricanes but flying debris creates an entry for the wind and it's downhill from there. That's one of the main reasons we board our windows.