That brings back memories for sure. Blizzard of '93 and Fort Loudoun Dam Marina in Lenoir City, TN. I called the marina the morning after we got a ton of snow to see if they still had power. They didn't, but the concern was sinking slips due to the weight of the snow. To make things more interesting, a tornado a week or so before had torn loose a section of dock that sealed the harbor. With that, we were a captive audience.
I told them I was driving over to move my boat to an open slip, but they told me not to. They wanted everyone to stay tied to the docks to aid them in staying afloat. Uh, no. I picked up a friend to whom I had sold a boat a couple of years earlier, and we moved our boats into open slips. We ended up staying on our boats and running our generators for a couple of days until things returned to normal.
Nothing happened that time, but the next big snow brought down the covered slips. They didn't sink, they collapsed. It was nowhere near as much snow as before, but they had apparently been weakened enough that they couldn't stand the next round. I had moved my boat by that point, but my buddy's boat received substantial damage. Other boats were totaled and/or sank.