As I was reading the thread about tornados in Britain, I was curious about your stories about Disasters experienced/narrowly averted.
A tornado that hit here a few years ago that was a Class V, and measured the highest wind speed ever recorded. At 317 mph (510 kph) and a mile (1.6 km) wide, it totally destroyed part of our city, as it moved into rural Oklahoma, the tornado actually decimated complete cities leaving a husk of a grocery store / mini-mall which are still there today.
Here is a picture of Moore, OK a suburb, this is not a farm but the remains of a neighborhood.
Here is a satellite image of the path of the same tornado.