NEW YORK (AP) — Waves are splashing over the sea walls at the southern tip of Manhattan -- hours before the worst of a mammoth storm is supposed to hit the nation's largest city.

It's bringing a wall of water that could reach 11 feet.

Two major tunnels to downtown Manhattan that are prone to flooding have been closed. And the city has already canceled schools tomorrow for a second day.

It's already shut down its mass transit system, and ordered hundreds of thousands to leave their homes.

Mayor Michael Bloomberg says there's "no chance" that mass transit will be back in operation by tomorrow morning.

The city's financial markets are shut down, as are Broadway shows.

Crowds gathered today along the South Street Seaport until police shooed them away.

In Battery Park City, a complex of high-rise offices and apartment buildings that were built on a landfill in lower Manhattan, holdouts have been watching as the Hudson River rises. It's started to breach parts of the scenic walkways along the river.

People were still out jogging, walking their dogs and taking infants out in strollers amid gusts of wind.