Not exactly an SHTF situation, but I think of a day like today that we had in Ohio. Between 4:30 and dawn this morning at least 5 confirmed tornadoes touched down, some close to friends. Thankfully most of the damage was property, though I haven't heard of injuries or loss of life. Normally this is a late in the day thing, but hearing tornado sirens at 5:15 in the morning is strange.