A Twitter video from a Bahamas resident shows a dry ocean floor after Hurricane Irma pushed out the beach's water.

Hurricane Irma approached the Florida Keys around 8:30am on Sunday, leaving at least one dead. The category 4 storm is expected to be one of the worst in Florida's history, with evacuation orders for all of south Florida.

Meteorologist Rick Reichmuth said he had never seen such an effect left by a hurricane.

"They were walking out in that on the ocean floor completely void of any water there because of the energy of this wind pushing that away," Reichmuth said.

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