Still, Pupo said residents were used to such storms and would take the damage in stride. Cuba's communist government is known for its rapid response to natural disasters, and people on the Caribbean's largest island have long years of experience with hurricanes.
"We'll move forward," Pupo said. "We'll get out of this whole as we have many other times before."
The 18th named storm of the Atlantic hurricane season passed well west of the U.S. naval base at Cuba's Guantanamo Bay, where pretrial hearings were being held for a suspect in the deadly 2000 attack on the destroyer USS Cole off Yemen.
But it knocked out power for most of the 5,500 people living on the base and ripped some non-military boats from tie-downs, leaving them scattered on the beach. Officials said there was no threat to the 166 prisoners.
The hurricane center said that Sandy would likely still be a hurricane as it passes over the Bahamas later in the day. It also might bring tropical storm conditions along the southeastern Florida coast, the Upper Keys and Florida Bay by Friday morning.
A tropical storm warning was extended northward as far as Flagler Beach and a tropical storm watch was issued for the northeastern Florida coast.
Sandy also may combine with other weather systems to create a major storm over the northeastern U.S. next week, according to federal and private forecasters.
"It'll be a rough couple days from Hatteras up to Cape Cod," said forecaster Jim Cisco of the National Oceanic and Atmospheric Administration prediction center in College Park, Maryland. "We don't have many modern precedents for what the models are suggesting."
As Sandy crossed over Jamaica on Wednesday an elderly man was killed by a boulder that crashed into his clapboard house, police said. In southwestern Haiti, a woman died in the town of Camp Perrin after she was swept away by a river she was trying to cross, said Marie Alta Jean-Baptiste, head of the country's civil protection office.