1. Preparation

    NYC Mass Transit Begins Shutdown

    NEW YORK, NY - AUGUST 27:  Martina Olivio waits for a subway as she evacuates Manhattan with her dog Precious on August 27, 2011 in New York City. Residents were allowed to bring their dogs on the subway during today's evacuation period. There are approximately 370,000 city residents in low lying areas are under a mandatory evacuation order ahead of Hurricane Irene.  (Photo by Mario Tama/Getty Images)

    Mario Tama / Getty Images

    New York City began shutting down its mass transit systems Saturday, with the last trains and buses leaving their stations at noon. The shutdown will take about eight hours, and service won’t resume until Monday at the earliest. Mayor Michael Bloomberg is also considering cutting off power to parts of lower Manhattan in order to avoid the risk of salt-water flooding while the cables are live. “There’s a lot less damage to cables if salt water gets on them when they don’t carry any current,” he explained.

    Read it at New York Post