A rare September nor’easter is expected to develop early next week off the Carolinas or Virginia, raising concerns for coastal flooding, strong winds and rain across the Northeast.

Storm development and timing

Forecasters say the system could form Wednesday or Thursday and strengthen through the weekend. Two main scenarios are being tracked. In the first, the storm intensifies quickly and tracks close to the coast of New Jersey and Long Island, bringing gusts up to 50 mph, especially Friday into Saturday.

In the second scenario, the storm stays farther offshore, still producing rough seas and elevated tides but with less intense wind and rain threats.

Potential impacts

Regardless of track, coastal flooding is likely. Higher tides combined with strong winds could push water 2–3 feet above normal levels, affecting areas from Virginia to New Jersey as early as Tuesday evening. Gauges may reach major flood stage by Thursday morning.

Rainfall is expected, though the amount and flooding risk remain uncertain. Recent heavy rains have left soils saturated, increasing the chance that even moderate rain could cause localized flooding.

Factors amplifying the threat

A high‑pressure system over eastern Canada will funnel cooler air into the region, keeping temperatures in the 60s. The pressure gradient between the developing storm and the high pressure could boost wind speeds along the coast.

Additionally, a full moon this weekend will raise tide levels, creating a perfect combination for serious coastal flooding.

What residents can do

Local officials advise monitoring official forecasts and preparing for possible flood advisories, especially in low‑lying coastal communities. Residents should secure property, have evacuation routes ready, and stay informed through the CNN Weather app or local weather services.

Original reporting: KTVZ (Central Oregon) — read the source article.