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Isaac Causes Flooding In Southern Puerto Rico

SAN JUAN, Puerto Rico (CBSMiami/AP) – As Tropical Storm Isaac slowed early Thursday, residents and tourists in Puerto Rico and U.S. Virgin Islands readied for rain – lots of it.

Thursday morning Isaac was about 225 miles south-southeast of Puerto Rico. The storm was moving to the west at around 13 mph.

Some flooding was reported in eastern and southern regions of Puerto Rico as the storm approached.

"This is not the moment to become complacent," said Ernesto Morales, forecaster with the National Weather Service in San Juan, Puerto Rico.

The U.S. territory has opened 428 shelters, and 50 people have taken refuge, said Gov. Luis Fortuno. Some 4,000 people were without power and more than 3,000 without water.

Schools and government offices remained closed Thursday, but the governor said it was safe for people to go to work if they needed to. However, he warned everyone to stay away from beaches and swollen rivers.

"It's not the day to participate in recreational activities in these areas," Fortuno said.

Puerto Rico's main international airport remained open, but Cape Air and American Eagle cancelled all their flights Thursday, Fortuno said. Ferry service to the tourist islands of Vieques and Culebra also was temporarily suspended.

In Vieques, one of the owners of Bananas Guesthouse said he had received a call from his brother in Florida, who suggested he tell reporters "there are mudslides and cows flying through the air. But in fact, there's a breeze going by," Glenn Curry said. "We've had a little bit of rain. Nothing much has happened so far...Overnight it didn't even blow enough to wake me up."

In the U.S. Virgin Islands town of Christiansted, streets lined with historic buildings of Danish architecture, were largely deserted. All but a small handful of businesses and government offices were closed. Hurricane shutters covered the entrances to most buildings and sandbags were stacked in anticipation of potential floods and storm surge.

Two shelters were open on the island, and 10 people were housed overnight, according to Elton Lewis, director of the Virgin Islands Territorial Emergency Management Agency.

The storm already forced military authorities at the U.S. base in Guantanamo Bay, Cuba, to cancel pretrial hearings for five prisoners charged in the Sept. 11 attacks. They also planned to evacuate about 200 people, including legal teams and relatives of Sept. 11 victims.

U.S. forecasters said Isaac will likely turn into a Category 1 hurricane by Friday as it nears the Dominican Republic and Haiti. It was expected to weaken a little while heading over their island and Cuba, then possibly move on toward Florida as a hurricane by Monday.

Isaac may pose a threat to next week's Republican National Convention in Tampa, where officials said they were ready to take emergency measures even as 70,000 delegates, journalists and protesters descend on the city.

"Public safety will always trump politics," Tampa Mayor Bob Buckhorn said. "And so my job, and our job, if we move into that mode, is to make sure we get people out of harm's way."

(TM and © Copyright 2012 CBS Radio Inc. and its relevant subsidiaries. CBS RADIO and EYE Logo TM and Copyright 2012 CBS Broadcasting Inc. Used under license. All Rights Reserved. This material may not be published, broadcast, rewritten, or redistributed. The Associated Press contributed to this report.)

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