Rabbit:
Right you are - the South Atlantic has been unique in its tropical activity this winter as a 'split' on the ITCZ was forced far to the south in the western south Atlantic. Normally the ITCZ resides exclusively in the northern hemisphere because of the tilt of the earth's axis, i.e., the Trade Winds in the Northern Hemisphere and the Trade Winds in the Southern Hemisphere collide just north of the Equator and form the ITCZ. Why was it quite different this year - I haven't got the slightest idea - but it did! What might it mean for the north Atlantic season? Also no idea - makes me wonder if Cape Verde waves will dive too far south to amount to much. Things can change a lot though in the next couple of months - its that time of year.
Cheers,
ED