[No Blue States]

The only thing i can think of that might flip it over would be the wake from one of the large ships.
I remember fishing on the TC dyke once and an 8-10' wave from a big ship travelled all the way down the dyke moshing alot of fishermen..It pretty was funny actually.
We avoided it by being on a dock where the top of the waves passed a foot or 2 under us.
Maybe a wave like that broadsided the barge?

[No Blue States]

I worry about the effect this will have on my fishing holes, once the danger to humans is contained.