Source: NBC News
Tropical Storm Isaac built up strength Friday as it headed toward Haiti, continuing its march across the Caribbean after unleashing heavy rain on parts of Puerto Rico and prompting Florida officials to urge residents to prepare now.
With sustained winds now at 60 mph, Isaac poses a threat to Florida, where it could pass near the state’s Gulf Coast on Monday just as the Republican National Convention is scheduled to start in Tampa.
Winds at tropical storm strength extend 185 miles out from Isaac’s center, making it a very wide storm.
“Some strengthening is possible before the center” crosses part of Haiti and the Dominican Republic Friday night, the U.S. National Hurricane Center said in an advisory Friday.
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