Tropical Storm Erika is no longer a threat to Florida, dissipating into a wet but weak low-pressure system over Cuba on Saturday, according to the National Hurricane Center.

But it left devastation in its path across the Caribbean, killing at least 20 people and leaving another 31 missing on the small eastern Caribbean island of Dominica, authorities said.

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Storm watches and warnings for the Bahamas and Florida have been discontinued, as Erika's maximum sustained winds have dropped to 35 mph, below the tropical cyclone threshhold of 39 mph.

Instead of sweeping northward toward Florida, the remnants of Erika are expected to drift into the southeastern Gulf of Mexico on Sunday.

Gusty winds, some to tropical storm force, are still possible in squalls from Cuba to Hispaniola and Florida into Sunday, and rainfall of at least 3-6 inches is also possible.

But the storm will not become the first hurricane to strike the United States this year, as hurricane center forecasters had predicted.

Erika devastated the island of Dominica. Prime Minister Roosevelt Skerrit said in a televised address late Friday that damage inflicted by the storm set that island back 20 years. Some 15 inches of rain fell on the mountainous island.

"The extent of the devastation is monumental. It is far worse than expected," he said, adding that hundreds of homes, bridges and roads have been destroyed. "We have, in essence, to rebuild Dominica."

At least 31 people have been reported missing, according to officials with the Barbados-based Caribbean Disaster Emergency Response Agency. The island's airports remained closed, and some communities remained isolated by flooding and landslides.

The Associated Press contributed to this report.

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