Authorities readied two elementary schools to serve as storm shelters in Barra de Navidad and Gurza said at least 65 shelters had been opened along the coast in the states of Jalisco, Colima and Nayarit.
Perhaps a couple of hundred tourists remained Monday in Barra de Navidad and the nearby beach town of Melaque, said Armando Martinez, an employee of the civil defense department of Cihuatlan, the township that includes both towns.
Local fishermen were ordered not to go out to sea.
At 8 a.m. EDT (1200 GMT), Jova was centered 130 miles (210 kilometers) southwest of Manzanillo and was moving north-northeast at 6 mph (9 kph), the Hurricane Center said. The storm was expected to produce rainfall accumulations of 6 to 12 inches (15 to 30 centimeters) over the states of Michoacan, Colima and Jalisco which could trigger dangerous flash floods and mudslides over mountainous terrain, the center said.
In 1959, an unnamed hurricane struck near Manzanillo, reportedly killing 1,000 people. Detailed reports on hurricanes were not available at the time.
Remnants of Hurricane Jova were projected to pass across the Guadalajara area but to be dissipating by the time the Jalisco state capital inaugurates the Pan American Games on Friday. Puerto Vallarta is scheduled to host two events, open-water swimming and the triathlon, about a week later.
Meanwhile, Tropical Storm Irwin had weakened to a tropical depression farther out in the Pacific with winds near 35 mph (55 kph). While it was expected to move eastward toward land, it was not immediately clear if it would reach the coast.
Associated Press writer Mark Stevenson contributed to this report.