12z 11/24 GFS has such strange occurances, I'm not sure what to think. I'll just describe and give a link, as the drama is stretched out over days 4-8 now. The low splits and forms two equally weak lows around 96hrs (
Link 1), and plays with them through 144hrs, where a third low joins and forms three very weak lows all lined up (
Link 2). By 162 hrs, the first (middle) low has been absorbed by the second one (far east) and the third low has split itself to form a fourth. (
Link 3) The third and fourth lows reconsolidate while a fifth low forms just east of the Canary Islands and gets absorbed into this combination, and go on to be a powerful ET low which is stalled and becomes a seemingly subtropical low around Day 10 and possibly tropical around Day 11. The other low just NE of the islands weakens to a trough around the time the fifth low forms, and does nothing else. That's what I got out of it, along with the fact that the GFS can be considered a rather bad model for late season tropical development.
(For those who want to see all of it, link to GFS run page)
http://www.nco.ncep.noaa.gov/pmb/nwprod/analysis/index_carib.shtml