12Z GFS run has just come out. Cannot say I have seen this before, but at 126 hours we seem to have not one, but two developing "lows" in the W. Caribbean approx. 5 degrees apart ( east to west ). At about 192 hours out, each 999mb ( or lower ) low begin a process to coalesce. The former "developing" center of 95L appears to almost merge into the more Eastern Low at approx. 80 longitude, expand as one really large system and proceed to move due north through Cuba, S. Florida, and continuing northward along the coast.

(Post moved to the appropriate Forum - long-term track & intensity forecasts belong here.)