Marcella,
Here is a DuPont above-ground shelter product rated for Category 5 hurricanes and F5 tornadoes - made of Kevlar.
No idea how much it costs or how much to install, but you’re not doomed if you can’t get underground.
http://www2.dupont.com/Stormroom/en_US/products/Products_subpages/meeting_exceeding.html
“The prices for the DuPont storm rooms with Kevlar are set by the local distributors and range from about $5,750 for a 4 foot by 4 foot shelter and up to $15,000 for a 12 foot by 12 foot shelter. “
“Here is a DuPont above-ground shelter product rated for Category 5 hurricanes and F5 tornadoes - made of Kevlar”
Thanks. I’ve pinged humblegunner to see if he has underground safety. He’s got everything else, including plenty of guts and he’s big and strong.