That's a pretty definitive answer from JetBlueFA, and is in line historically.
Personally, we moved our Sunday JFK-PUJ flight to Monday (Sat was not available), but I'm concerned flooding at JFK and throughout NYC may pose problems on Monday.
Hopefully the storm passes Sunday afternoon as expected and we can start cleaning up asap. NYC commerce is almost as irresistible a force as nature... almost...
stay safe everyone