The eye of Hurricane Irma grazed the Turks and Caicos Islands on Thursday, rattling buildings after it smashed a string of Caribbean islands as one of the most powerful Atlantic storms in a century, killing 14 people on its way to Florida.

With winds of around 185 miles per hour (290 km per hour), the storm the size of France has ravaged small islands in the northeast Caribbean in recent days, including Barbuda, Saint Martin and the British and U.S. Virgin Islands, ripping down trees and flattening homes and hospitals.

Winds dipped on Thursday to 165 mph as Irma soaked the northern coasts of the Dominican Republic and Haiti and brought hurricane-force winds to the Turks and Caicos Islands. It remained an extremely dangerous Category 5 storm, the highest designation by the National Hurricane Center (NHC).

Irma was about 55 miles (85 km) south of Great Inagua Island and is expected to bring 20-foot (6-m) storm surges to the Bahamas, before moving to Cuba and plowing into southern Florida as a very powerful Category 4 on Sunday, with storm surges and flooding due to begin within the next 48 hours.

Across the Caribbean authorities rushed to evacuate tens of thousands of residents and tourists. On islands in its wake, shocked locals tried to comprehend the extent of the devastation while simultaneously preparing for another major hurricane, Jose, now a Category 3 and due to hit the northeastern Caribbean on Saturday.

It was the first time the Turks and Caicos islands had experienced a Category 5 storm, said Virginia Clerveaux, director of Disaster Management and Emergencies.

“We are expecting inundation from both rainfall as well as storm surge. And we may not be able to come rescue them in a timely manner,” she said in comments on social media site Facebook.

The few tourists who remained on the Turks and Caicos islands were in hotels, as were some locals.

A Reuters witness described the roof and walls of a well-built house shaking hard as the screaming storm rocked the island of Providenciales and caused a drop in pressure that could be felt in people’s chests.