You know when you’ve been hit by a rogue wave. The energy within it is of a different order of magnitude from an inconvenient, but ultimately harmless, wave crest that topples into the cockpit.
The first such wave I encountered was more than 20 years ago in the Southern Ocean while being pummelled by a secondary low that produced gusts above 60 knots. Those on deck were swept to the limit of their harnesses. Water streamed through the closed washboards as though blasted from a fire hose. Fortunately we sustained no serious damage and were able to continue to Cape Horn.
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