Understanding Nor'easters: Not Always Snowstorms
Understanding Nor'easters: Not Always Snowstorms
US · Published Sep 22, 2026
• A nor'easter is a powerful low-pressure system characterized by its northeasterly coastal winds, which can bring heavy rain or snow depending on conditions.
• These storms form when freezing arctic air from Canada collides with warm, moist air over the Atlantic Gulf Stream, often intensifying rapidly.

Impact & Risks

Nor'easters can cause significant disruption, particularly along the heavily populated I-95 corridor. These storms often bring blizzard conditions with winds exceeding 50 mph, leading to near-zero visibility. Coastal flooding and beach erosion are common due to strong onshore winds and massive ocean waves. Prolonged flooding from stalled storms can result in extensive damage. Additionally, nor'easters disrupt major travel and shipping hubs like New York City, Philadelphia, and Boston, impacting the national supply chain and travel network.

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