The nation has trusted Survive-A-Storm Shelters for protection during the most severe weather - after all, their shelters are rated for EF5-level tornadoes. They now offer an added layer of protection - the StormWarn Alert System. With this fresh approach, there’s no wondering if the danger is really headed your way. And, no worry about what will happen if you go to sleep for the night. They call YOU when the tornado heads your way.