Tornado proof? Possibly
Used this tent in everything from a winter snow storm to steamy summer nights and most recently withstood a tornado producing storm. Nothing but good things to say about this tent. Light, high quality, easy to setup, and a bright disposition to start your day right! Recently kept me bone dry through 55Mph winds and torrential rain! Most others tents were being blown over and soaking wet. Was able to go surf the next morning instead of drying out my sleeping bag! The mesh is awesome and although I was originally worried about the durability it has withstood some friends in a inebriated state with sticks and high winds along with several inches of snow. Hated the price but love the quality. Would recommend a thousand times over.