The current has vanished, at least for the time being. Hooooley dooooley! How can this be in a world where the laws of physics rule?
Some observations: We felt what seemed to be the strongest current as we passed the big seamount at 31.40S 008.24W. It sits on a ridge extending from the continental shelf and presumably has a significant effect on the huge volume of water flowing NW past it. We passed over the ridge about 35 miles S of the seamount.
The current ceased abruptly as we crossed the south eastern edge of the ridge and the water temperature rose about 2 degrees. This seems to be a very similar phenomenon to the East Australian Current which also runs along the continental shelf, except that there, the current is warm water flowing south whereas here it seems to be cold water flowing north. I have tweaked our heading to try to stay in the warmer water here and we have every appendage in the boat crossed.
If everything holds, Dec 5th will be tantalisingly close but I think just out of reach given the grib predictions for the next 4 days. Kite at the ready for a tiny snatch of northerly wind if it lasts long enough to reach us.