[Justa]

My guess would be new silting in the channel from hurricane Dorian forced the captain to lighten the ballast to clear the channel. But the ship’s navagation systems weren’t updated accordingly (lower speed for turning). So a GPS-plot turn at (previously-normal) speed caused a low-ballast keelover.

[chiller]

Thanks for a sensible answer. That port facility is about 5 miles from open ocean, although I don’t know where exactly this occurred. I wonder if new silt deposits
were pushed up the channel, or heavy rains brought silt down toward the ocean. Dorian probably did both.

[fishtank]

Thanks for the tech info. I'm not a mariner, but my son is --- he was working on the ARC Resolve a couple years ago.....