Thanks for the warning, Kentucky lake is like that also,it will be nice and calm one minute then a summer storm rolls through there will be swells so big all you can see is a wall of water I was fairly young the first time I experience this it was a good thing that I was going the same direction the wind was blowing I was able to ride the waves kind a like a surfboard. So I am very cautious when it comes to being on the water. I go to the Detroit River and Lake Erie every spring those bodies of water gets very rough quickly also .