NYC subways and the Metro North and Long Island Railroads stopped service at 7PM today. NYC buses stopped service at 9PM. NJ PATH will stop service at midnight. Mandatory evacuations are in effect for flood prone parts for NJ, NYC and CT. Storm surge for NYC harbor and LI Sound is forecast to be as much as 12'.
Even though this thing isn't expected to make landfall until late tomorrow, parts of central and northern NJ, and eastern VA have already received 2-4 inches of rain. Parts of eastern PA can expect much of the precipitation to be in the form of snow.
Being that Sandy is expect to make a right turn tomorrow, which would make it pass to the south and then west, the primary concern here will be the winds. Windy currently, but still not much here. That should change tomorrow.