
Sept 26 (Reuters) - Humberto has strengthened to become a powerful Category 4 hurricane and is forecast to continue strengthening through the weekend, the U.S. Hurricane Center said on Friday.
The hurricane was located about 390 miles (630 km) northeast of the northern Leeward islands, packing maximum sustained winds of 145 miles per hour (230 km/hour).
The swells generated by Humberto will begin affecting portions of the northern Leeward Islands, the Virgin Islands, Puerto Rico, and Bermuda this weekend, the Miami-based forecaster added.