Forecasters said the storm would dump up to 18 inches (46 centimeters) of rain across Puerto Rico and whip the U.S. territory with heavy winds for 12 to 24 hours.

Officials said the Federal Emergency Management Agency was ready to bring drinking water and help restore power in Puerto Rico immediately after the storm.

Rossello said officials had prepared about 450 shelters with a capacity for nearly 68,000 people — or even 125,000 in an emergency. Schools were cancelled for Monday and government employees would work only a half day.

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Officials in the Dominican Republic urged people to leave areas prone to flooding and said fishermen should remain in port.

Farther north, long-lived Hurricane Jose continued to head northward off the U.S. East Coast, causing dangerous surf and rip currents. It wasn’t expected to make landfall but tropical storm watches were posted along the coast from Delaware to Massachusetts’ Cape Cod.

Jose was centered about 265 miles (430 kilometers) east-southeast of Cape Hatteras, North Carolina, and was moving north at 9 mph (15 kph). It had maximum sustained winds of 75 mph (120 kph).

The ocean washed over parts of North Carolina’s Outer Banks as Hurricane Jose passed well to the east, and five people were knocked off a coastal jetty in Rhode Island by high surf caused by the storm. Officials said rescuers had to fight through rough surf to load the injured onto stretchers and get them to shore. All five were taken to a hospital with minor and major injuries.

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In the Pacific, Tropical Storm Norma’s threat to Mexico’s Los Cabos resort area at the southern end of the Baja California Peninsula seemed to ease as forecasters said the storm’s center was likely to remain offshore.

Norma had winds of about 50 mph (85 kph) and it was centered about 175 miles (280 kilometers) southwest of Cabo San Lucas. The Baja California Sur state government prepared storm shelters and canceled classes for Monday.

Meanwhile, Tropical Storm Lee weakened into a tropical depression far out in the Atlantic while Hurricane Otis weakened far out in the Pacific. Neither threatened land.