On the NYC OEM site, it said they were the #2 most vulnerable city to a hurricane. I believe New Orleans was #1.

That should put things into perspective, but most people won't realize it until it's too late. A severe hurricane that aims at the city would push a lot of water into Long Island (assuming it's on the northeast side of the hurricane ). Let's just say there is no way to evacuate Long Island with the amount of time you have. Look what happened when there was an itsy bitsy fire on the Triborough Bridge this week.