Humberto grows to major hurricane in the Atlantic. Maps show its forecast path.

▶ Watch Video: Tracking the tropics as Humberto strengthens into a hurricane

Humberto grew into a Category 4 hurricane on Friday evening, “rapidly strengthening” into a major hurricane, but there were no immediate watches or warnings issued for the U.S. by the National Hurricane Center.

The storm is one of two systems swirling over the western Atlantic that could potentially bring some downstream impacts to parts of the Southeast U.S. coast, from Florida to North Carolina, the director of the Miami-based hurricane center, Michael Brennan, said.

There were no coastal watches or warnings in effect due to either storm as of Friday afternoon.

Hurricane Humberto forecast and path

As of Friday night, Humberto was located about 390 miles northeast of the northern Leeward Islands. It was