A little Texas flash flood on 10/30/15 on the Guadalupe River. Lake Dunlap is just a small dam that forms a small, narrow lake. This happens on occasion, boat owners didn't get their boats off their lifts of stored too close to the water and the boats go over the dam. My dealer said today they've already received 5-7 calls to replace boats that went over the dam. The dam is approx 30' high on the backside (could be taller)
https://m.youtube.com/watch?v=8Yfiiq7qoSY
This was June 2010. The June flash flood was not even predicted and happened on a weekday morning while people were at work. Just a freak storm that stalled over the Guadalupe River basin.
https://m.youtube.com/watch?v=2uh4gZcqT4Q