The "Faraday Cage Effect" keeps you relatively safe inside the enclosure of an airplane. The same principal is at work inside a New Day Tornado Shelter and perhaps more so being connected to ground.
New Day Tornado Shelters - Tulsa OK
PHONE: 918.277.3758
6040 E TECUMSEH ST
TULSA OK 74115
newdaytornadoshelters@gmail.com