Meanwhile in the Pacific, a system offshore from southern Mexico is forecast to become a tropical depression or tropical storm by sometime on June 29, the hurricane center said. The system, a few hundred miles south-southwest of the Gulf of Tehuantepec, is forecast to bring heavy rains to parts of Central America and southern Mexico.

The tropical depression is expected to intensify into a stronger rotating system to become Tropical Storm Chantal by Saturday, forecasters said.