Hurricane Sandy approached the Northeast in late October 2012 as a hybrid giant. By landfall in New Jersey, it was transitioning to a post-tropical system — but the wind field and surge remained hurricane-class in impact. New York Harbor flooded. Subways became rivers. Coastal New Jersey neighborhoods were scoured.
Urban Infrastructure Exposed
Sandy revealed how modern cities hide vulnerability underground. Power substations flooded. Tunnels filled with saltwater. Hospitals evacuated by stairwell. Roughly 233 people died in the U.S. Economic damage exceeded $65 billion — among the highest ever.
Redefining Northeast Risk
New York and New Jersey upgraded coastal defenses, revised building codes, and bought out some flood-prone blocks. Sandy proved that you do not need a Category 5 at your doorstep to suffer a catastrophe — size, angle, tide, and infrastructure concentration matter. It also entered climate conversations as a preview of higher baseline seas.