Do you recall the Tacoma Narrows Bridge collapse video from high school? Ships do the same. It's a classic example of 'aeroelastic flutter,' a positive feedback loop caused by wind.
In ships, it is a phenomenon known as 'Parametric Rolling' due to wave-induced feedback loops.
Altering speed and course usually stops it. If not, you must start moving ballast water to counter the movement.
All ships endure wind and waves. The salient variable here is the ship's high center of gravity, which causes the parametric rolling. Note how high in the water the ship rests (Plimsoll Line visible)
I recently wrote a similar post about the Verrezzano-Narrows bridge, which creaked and swayed in the wind (although it perfectly weathered the storm).
I wrote about that here:
Eery Sounds of Verrazzano-Narrow Bridge
Put your earphones on and listen to the otherwordly and eery sounds of the Verrazzano-Narrows Bridge in NY, as the expansion joints creak and shift while swaying in high winds. 💨