All docks are vulnerable to bad weather. The powerful storms of spring and summer storms at Lake of the Ozarks have been known to flip a dock completely upside-down... while leaving neighboring docks in the cove unscathed. Strong winds can rip a dock from its anchoring any time of the year. During the deepest cold of winter, as coves freeze over, docks without deicers are threatened by the accumulating ice around them. And with the annual winter drawdown—when Ameren drops the Lake level from its full pool level of 660 to about 654 feet of elevation—dock cables can endure immense strain.
Heavy snow, however, is among a dock's worst enemies, so it's always good to have someone checking on your dock.