ST. PETERSBURG, Fla. | Isaias snapped trees and knocked out power as it blew through the Bahamas on Saturday and churned toward the Florida coast, threatening to complicate efforts to contain the coronavirus in places were cases are surging.

Isaias weakened from a hurricane to a tropical storm Saturday afternoon, but was expected to regain hurricane strength overnight as it barrels toward Florida.

“We’ll start seeing impacts tonight,” Florida Gov. Ron DeSantis warned at a news conference. “Don’t be fooled by the downgrade.”

Isaias is piling another burden on communities already hard-hit by previous storms and the pandemic.

Florida authorities closed beaches, parks and virus testing sites, lashing signs to palm trees so they wouldn’t blow away. The governor warned residents to expect power outages and asked to have a week’s supply of water and food on hand. Officials wrestled with how to prepare shelters for people to seek refuge, if need be, while safely social distancing because of the virus.

Authorities in North Carolina ordered the evacuation of Ocracoke Island, which was slammed last year by Hurricane Dorian. Meanwhile, officials in the Bahamas opened shelters for people in Abaco island to help those who have been living in temporary structures since Dorian devastated the area, killing at least 70 people.

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