I had 5 to 6 inches of ice on my 2 1/2 acre pond. Then a fast warmup to 50 degrees with some rain. This left an inch of water on top of the ice. A quick drop in temperature down to single digits the next day refroze the water on top. Man was the ice making a racket last night. It sounded like (I imagine) icebergs colliding. I have a floating dock or I suspect I may have seen some damage.