Tropical storm Isaac is gaining strength, but isn't organized enough to become a hurricane before Monday. Isaac will hit Haiti and the Dominican Republic today, and Cuba on Friday.
San Juan, Puerto Rico
The storm's failure to gain the kind of strength in the Caribbean that forecasters initially projected made it more likely that Isaac won't become a hurricane until it enters the Gulf of Mexico, said Eric Blake, a forecaster with U.S. National Hurricane Center in Miami.
"We think it could become a hurricane on Monday," Blake said late Thursday. "It would be somewhere over the Gulf of Mexico."
At 8 a.m. the National Hurricane Center reported that the hurricane hunter aircraft reports that Isaac is a little stronger, with sustained winds reaching 50 m.p.h. The center of Isaac will move near or over the island of Hispaniola (Haiti and the Dominican Republic) today...And move near or over southeastern Cuba on Saturday.
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