A powerful early-season nor’easter is developing off the U.S. East Coast, with the Northeast facing an extended period of coastal flooding, high surf, strong winds and heavy rain from Friday through the weekend.

In this episode of Meteorology Matters, we take an inside look at what is actually happening with this unusual September coastal storm and why its evolution deserves close attention.

We examine the latest forecast guidance from the major numerical weather models, ensemble guidance and Google DeepMind’s WeatherNext AI system, including the growing uncertainty over the storm’s track, intensity and how long it may linger near the Northeast coast.

Could this system develop subtropical or hybrid characteristics as it strengthens over unusually warm Atlantic waters? We explain what would have to happen for an initially extratr ...