Forecasters say Hurricane Bertha has weakened to a Category 2 storm.

As of 11 a.m. EDT Tuesday, the center of the storm was about 660 miles east-northeast of the northern Leeward Islands and about 975 miles southeast of Bermuda.

Maximum sustained winds decreased to 105 mph with some higher gusting. The storm is expected to continue weakening over the next couple of days. The Atlantic season's first hurricane is headed to the northwest at about 10 mph.

Bertha is expected to continue heading toward Bermuda. Forecasters urged people on the island to continue monitoring the storm's progress. It's unknown if or when the hurricane will make landfall.

The Atlantic hurricane season runs through Nov. 30.