Between 2016 and 2023, researchers at NASA's Jet Propulsion Laboratory (JPL) used a space-based method known as interferometric synthetic aperture radar (InSAR) to 3D-map the ground beneath New York City, measuring vertical land motion over time. They found that during this period, the area sank an average of 0.06 inches (1.6 millimeters) per year.

Torrential rains that triggered flash flood warnings wreaked havoc across the New York City metro area Friday.

Torrential downpours after a week of mostly steady rainfall triggered flash flooding in New York City on Friday (September 29), disrupting subway service in the most populous U.S. city and turning some streets into small lakes.

A localized but intense flood event was underway Friday morning in the most densely populated corridor of the country. New York City and adjacent portions of Long Island were under flash flood warnings as intense,

A state of emergency has been declared in New York City as strong storms bring flash flooding. Many of the city's subway systems, streets and highways have flooded, while at least one terminal at LaGuardia Airport closed on Friday before later reopening.