MIAMI — The storm system Erick has strengthened to a hurricane off the Pacific coast of Mexico.

The U.S. National Hurricane Center in Miami says Erick became a hurricane Saturday and is centered about 90 miles south of Manzanillo. and about 510 miles southeast of the southern tip of Baja California. It is moving northwest at 9 mph and has maximum sustained winds of 80 mph.

A hurricane watch is in effect for Punta San Telmo to Cabo Corrientes. A tropical storm warning is in effect for Zihuatanejo to Cabo Corrientes.

Forecasters predict a northwest to west-northwest track over the next few days but say the storm should remain offshore. Rain accumulations from 3 to 5 inches are expected. Forecasters warn of flash floods.