Directionality forcing the boat in a specific direction as you get with heavy winds blowing over an expanse of water.

Close enugh? (:<))

In the case of the FItzgerald, both wind and waves were coming at such an increased speed that its probable that McSorley never realized just how bad things were. Most doubt he knew how much water they were taking on becasue the huge pumps actually almost kept up.

There was one investigation which blamed the crew and the hatch covers but most of that was discredited upon finding the wreck.

Spaw