User blog comment:MasterGarfield/Gaston could be the strongest since Igor - maybe stronger/@comment-28470696-20160819011133

Gaston (assuming it forms from 99L) is actually expected to curve sharply to the northwest torwards Puerto Rico, whilst undergoing rapid intensification. After moving past Puerto Rico, according to the GFS, Gaston is expected to continue deepening as it passes to the northeast of the Bahamas, before peaking and gradually weakening while skimming the US East Coast and recurring northeast torwards Atlantic Canada.

The GFS also had a potential fujiwhara effect going on between Gaston (99L) and Hermine (the AOI that was added yesterday) as it passes the US East Coast.

This is all pretty far out, but we will have to keep watching.