NHC Gaston history
INIT 24/0300Z 14.7N 37.1W 55 KT 65 MPH

On the public ECMWF polar plot archives its possible to track the
"Azores" system back to 72 hr run of 21 August 0000Z and I make its then
position ( +/-2 degrees) at about
19N 39W
So it looks as though the "Azores" system is/was Gaston , not Fiona
which was predicted to be 63.3W early 24 Aug