There were two sets of blast doors anchored to the three foot thick concrete.
The pressure changes were ripping the doors out by the casings from the concrete. We drilled holes through, fished coat hanger wire through, then up to cables to anchor the doors to the floor. This was in the FAA radar building, so the floor panels came up to get at wiring.
The building was shaking and the wind noise was so great we had to yell at one another to be heard.
We were in teletype communication with technicians in the radar dome on Mount Rota, the most exposed point on the Island. The geodesic dome was built of 1/8th inch fiberglass. It was quiet in there with no evidence of a storm going on. The brick building next to the dome was destroyed.
The thing to be in is Buckminster Fuller's invention, not a bunker during high winds.
BTW, the anemometer blew off the roof at around 200 MPH.
If there are any dumpsters in the area, and cars, trucks, etc., chain them together.
Dumpsters were rolling around destroying stuff, cars and 18 wheeler flatbeds and other trailers blown around and flipped over, metal buildings completely gone to the concrete pad.
No food, running water or electricity when I left the island 2 weeks later.
I remember the exact moment, years ago, in the middle of a hurricane, that I realized I had made a mistake in riding it out.
It was like, oh crap, I'm going to die.
I don't lollygag around anymore.
During Hurricane Michael a five sisters were in the back room of a house our parish had acquired for a mini convent There was already one one broken window pane in the room. The front part of the house exploded probably because all the windows and doors were closed and an included twister dropped the outside pressure suddenly and exploded the house. The nuns were all okay but had to be housed elsewhere. That broken window apparently allowed the pressure to equalize fast enough to keep the back room intact. After the storm I saw that back room still standing
intact with its share of the roof. The rest of the house was small rubble spread around for up to a hundred feet from the house site. forty years ago I would have said, “Lucky for them!” Now I don’t think luck was involved.