Hurricane Fiona lashed Bermuda with heavy rain and winds early Friday on its way to Canada’s Atlantic coast.
Officials in Canada urged residents in the country’s eastern provinces to prepare for coastal flooding and power outages.
Fiona is expected to hit the Canadian coast by Saturday morning.
Florida also faces a hurricane threat after a separate tropical cyclone formed in the Caribbean Sea.
Tropical Depression Nine is in its early stages and moving on a path that could bring it to Florida next week as Hurricane Hermine, according to the National Hurricane Center.
Hurricane Fiona, now a Category 3 storm, already devastated Puerto Rico and the Dominican Republic earlier this week, and many are still without power or running water.
Five people died in the Caribbean: one in Guadeloupe, two in Puerto Rico and two in the Dominican Republic.
In Bermuda, Hurricane Fiona forced schools and offices to close.
The National Hurricane Center said Fiona’s maximum sustained winds could reach 130 mph (215 km/h).
Canadian officials and forecasters are urging residents to prepare for the storm’s impact as it approaches the Atlantic provinces of Nova Scotia, Prince Edward Island and Newfoundland.
The area could receive up to six to 10 inches of rain, increasing the risk of flash flooding.
Shelters have been set up in Halifax and Cape Breton in Nova Scotia to shelter people ahead of the storm.
“Every Nova Scotian should be preparing,” John Lohr, the province’s emergency preparedness minister, said at a news conference Thursday.
Lohr added that the storm could be “very dangerous”.
“The storm is expected to bring severe and damaging wind gusts, very high waves and coastal storm surges, heavy and dangerous rainfall rates and extended power outages,” Lohr said.
Severe hurricanes in Canada are rare, as storms lose their energy once they hit cooler waters to the north and instead become subtropical. However, pressure in the region is forecast to be historically low as Hurricane Fiona hits, paving the way for a stronger storm.
Nova Scotia was last hit by a tropical cyclone in 2003 with Hurricane Juan, a Category 2 storm that killed two people and severely damaged structures and vegetation.