I can only guess currents, one heck of a current at that. Or... it's fairly shallow and the women continued to drive until they hit a drop off.

Unless there are further reports or someone knows the area, we'll never know for sure.

Once the water is above the floorboard I think ocean currents can rapidly drag a vehicle offshore. It happens in flash floods.


I suspect the lesson may be that once you can't see the road don't just slow down: stop entirely! Once every other year or so I get caught in fog or rain so thick that there is no speed I can travel at and still see far enough ahead to stop. So I pull over and let everyone else pass me.