DIY Storm Shelter

[MossRoad]

Here's the video I was thinking of... it's a truck terminal in the Dallas area getting hit by a tornado. Airborne semi trailers like leaves in the wind. Watch the whole clip, as at a couple points they highlight the trailers flying through the air. Pretty darn impressive.

 

[forgeblast]

not Diy but home depot has a few....Storm Shelters - Outdoor Storage - The Home Depot