This is Hurricane Floyd from 1999; it formed in about the same region at about the same time of year, and spent many days as a tropical storm initially moving slowly northwest in a southwesterly shearing environment. IIRC, it also had an upper-level low to the north of it which was dropping southwest. At about the same 29.5c patch of water northeast of Puerto Rico where Ingrid is presently forecast to peter out, Floyd began intensifying and later topped out at 150mph near the Bahamas, where it scared the bejezzus out of Miami before shanking right and weakening.

