The Euro ensembles are mostly west of the Euro operational itself. A lot depends on the position of the trough currently over the eastern half of the country, in a few days it may split and move southwest (more likelihood of US impact), stay over the mid Atlantic (more likely for out to sea), or slip northeast (steering collapses and Irma meanders near the Bahamas for a bit). The setup for the trough/ridge is really quite delicate, so even several days from now we may not have a good idea. The operation Euro is slipping through a narrow window, so there's a fair chance the Euro will change again in the overnight run.

Current focus should on how close it gets to the Northeastern Caribbean islands, beyond that too soon to tell.