A powerful nor’easter is battering the U.S. East Coast, producing significant coastal flooding, strong winds, high surf and persistent rainfall from the Mid-Atlantic into New England.

Some of the most serious impacts have been reported along the New Jersey coast and surrounding tidal waterways, where ocean water has been pushed inland during successive high-tide cycles. Streets in vulnerable coastal communities have been inundated, with water covering roads, parking areas and other low-lying locations.

The combination of persistent onshore winds, large waves and unusually high astronomical tides has allowed water to accumulate along the coastline, creating a prolonged flooding threat rather than a single short-lived event.

Water levels rise along the coast

In the hardest-hit sections of the coastline, water levels have been running several feet above normal during high tide.

The broader storm has created the potential for 2 to 4 feet — approximately 60 to 120 centimeters — of water above normal high-tide levels in some of the most vulnerable parts of the Mid-Atlantic coast. Along sections of New Jersey, current warnings indicate roughly 1–3 feet of inundation above ground level depending on location.

This is enough to flood numerous coastal roads and isolate particularly exposed communities, especially around bays, tidal rivers and barrier islands.

New Jersey among the hardest-hit areas

New Jersey has been particularly exposed to the combination of strong onshore winds and high tides.

Coastal Flood Warnings remain in effect for several areas, with flooding affecting both the Atlantic coastline and tidal waterways farther inland. In some locations, authorities warn that numerous roads may become impassable and vulnerable structures could be affected.

Large breaking waves are adding another dimension to the storm. Along parts of the Jersey Shore, waves of up to around 7 feet have been forecast in the surf zone, accompanied by dangerous rip currents.

Strong winds compound the impacts

The nor’easter is also generating powerful winds across a large part of the Northeast.

Gusts around 40–50 mph have been widespread in exposed coastal areas, while locally stronger gusts have exceeded 60 mph. A gust of 74 mph was recorded at Surf City, New Jersey, while Montauk Point, New York, recorded an even stronger gust of 81 mph.

The combination of saturated ground and strong winds increases the risk of falling trees and power outages.

New York and New England also affected

The storm’s impacts extend well beyond New Jersey.

Coastal flooding, heavy rain and strong winds have affected the New York City metropolitan area, Long Island and southern New England, while rain is expected to continue across parts of the Northeast as the storm remains close to the coast.

The slow movement of the system means that coastal communities may experience additional flooding around subsequent high tides, even as winds gradually weaken.

A prolonged coastal storm

Unlike a fast-moving front, this nor’easter has remained near the coastline for an extended period, allowing persistent winds to repeatedly push Atlantic water toward shore.

The timing of the storm with very high astronomical tides associated with the full moon has further amplified water levels.

Conditions should gradually improve as the system weakens, but additional coastal flooding remains possible around high tide, while rain and gusty winds could linger into Monday in parts of New England and the New York region.

For now, the main concern remains the combination of coastal inundation, high surf, strong winds and beach erosion along a long stretch of the U.S. East Coast.