TornadoSafeRoom.com makes these above ground storm and tornado shelters. They are tested to withstand wind loads of 450 mph and the 100 mph projectile test. While tough and easy to install, they are small and not the most comfortable way to survive a violent...
Reliable Storm Shelters provides these solid steel constructed shelters intended to be used underground. They can be set into landscaping in a variety of ways to still allow easy access.