Tropical Storm Bertha is spinning toward Puerto Rico and the Dominican Republic after dumping heavy rain across the eastern Caribbean and causing several power outages in the region.

The storm had maximum sustained winds of 50 mph, and no significant change in strength is expected over the next two days. The National Hurricane Center in Miami says Bertha is on a path taking it near Puerto Rico and possibly skirting the Dominican Republic before heading for the Bahamas.

Tropical storm warnings have been issued for several islands including Puerto Rico, the U.S. and British Virgin Islands and the southeastern Bahamas.

Officials in Puerto Rico have said the island needs rain to help alleviate a moderate drought. More than half of the island is experiencing abnormally dry conditions, with the government reporting $20 million in crop losses.