North Carolina officials are worried that some Outer Banks residents might be trapped by flooding from Hurricane Dorian.

The water rose 7 feet in just two hours as Dorian made landfall Friday morning as a Category 1 storm. That was far weaker than the Category 5 monster which devastated the Bahamas earlier in the week, but it still brought surging waters that flooded even elevated homes. The main road through the island was also severely damaged.

Photos showing massive buckling from the flooding were shared on social media Saturday morning by local TV stations.

“We just thought it was gonna be a normal blow,” Steve Harris, a contractor and longtime Ocracoke Island resident who was one of about 800 people who stayed on the island through the storm, told the Associated Press. “But the damage is going to be severe this time. This is flooding of biblical proportions.”

The Coast Guard airlifted some people from the Outer Banks and the National Guard and local officials were rescuing residents trapped in attics. The state Department of Transportation said an emergency ferry to Ocracoke should be operating later Saturday.

Dorian was weakening as it passed Cape Cod and took aim at Nova Scotia, Prince Edward Island and Newfoundland, where it was expected to bring hurricane force winds and dangerous storm surge.