The season’s most destructive hurricane, Melissa, was one of the strongest Atlantic storms ever. It slammed Jamaica with 185 mph winds, devastating communities and killing dozens of people.

A week before the hurricane made landfall, however, forecast models disagreed on where it would go. One model that got it right — accurately predicting Melissa’s path and its category 5 intensity — was a new one: Google’s DeepMind AI-based hurricane model.

James Franklin, a former branch chief at the National Hurricane Center, analyzed how the forecast models performed this year, and says Google’s DeepMind outshone them all. “The model performed very, very well, which was very impressive,” he says. “It was the best guidance we saw this year.”

Artificial intelligence has been used in weather forecast models for some time. Google’s DeepMind, though, marks a significant step forward, one that suggests AI may soon overtake the physics-based models meteorologists have long relied on.