New York City is divided into hurricane evacuation zones. The map in .pdf format can be found here:
Zone A: highest risk of flooding from a hurricane’s storm surge, includes all low lying coastal areas
Zone B: may experience storm surge flooding from moderate (Category 2 and higher) hurricane
Zone C: may experience storm surge flooding from a major (Category 3 & 4) hurricane
Mayor Michael Bloomberg and the New York City Department of Health have ordered all senior centers, nursing homes, and hospitals (including Coney Island Hospital) that are located in very low-lying areas designated as Zone A to evacuate all residents and patients. The evacuation should be completed by 8pm on Friday August 26, 2011.
See the YouTube Video of Mayor Michael Bloomberg below: