It's twister season in the Heartland. May through August, tornado threats come with summer storms as they move across the plains.

"Weather Permitting"  is an exhibit at the Minnesota Historical Society that includes a “Get to the Basement!” experience. Visitors hear tornado survivors recount their stories. The life-like recreation of a tornado—complete with roaring noise and shaking walls—was recently named the Twin Cities’ Best Museum Exhibit by City Pages .

In an event some call the greatest weather disaster in Twin Cities history, six tornadoes touched down in the vicinity on May 5, 1965 . At least 12 tornadoes developed across Minnesota that day, and two tornadoes crossed Fridley.

Here are the basics  of tornado preparedness. If you have interest in these storms as phenomena—they are pretty cool—check this out . Shelter technology (and sales!) are here .