Miami, Fl. (Florida News Network)-At 1100 PM EDT, the center of Tropical Storm Isaias was located near latitude 20.5 North, longitude 71.9 West, about about 95 miles east-southeast of Great Inagua Island.
Isaias is moving toward the northwest near 18 mph (30 km/h), and a generally northwestward motion with some decrease in forward speed is expected for the next couple of days followed by turn toward the north-northwest.
On the forecast track, the center of Isaias will move near or over the Southeastern Bahamas by late tonight. Isaias is forecast to be near the Central Bahamas Friday night and move near or over the Northwestern Bahamas and near South Florida on Saturday.
Maximum sustained winds are near 60 mph (95 km/h) with higher gusts. Strengthening is forecast during the next day or so, and Isaias is forecast to become a hurricane by Friday night.
Tropical-storm-force winds extend outward up to 240 miles (390 km) from the center. An unofficial observing station on Big Ambergris Cay in the Turks and Caicos Islands recently reported a sustained wind of 43 mph (69 km/h) and had a gust to 54 mph (87 km/h) a few hours ago.
The estimated minimum central pressure is 999 mb (29.50 inches).
A Tropical Storm Watch is in effect for...
* East coast of Florida from Ocean Reef to Sebastian Inlet
* Lake Okeechobee
A Hurricane Warning is in effect for...
* Northwestern Bahamas including Andros Island, New Providence,
Eleuthera, Abacos Islands, Berry Islands, Grand Bahamas Island, and Bimini
A Tropical Storm Warning is in effect for...
* Dominican Republic entire southern and northern coastlines
* North coast of Haiti from Le Mole St Nicholas eastward to the
northern border with the Dominican Republic
* Turks and Caicos Islands
* Southeastern Bahamas including the Acklins, Crooked Island, Long
Cay, the Inaguas, Mayaguana, and the Ragged Islands
* Central Bahamas, including Cat Island, the Exumas, Long Island,
Rum Cay, and San Salvador
Graphic and data credit:National Hurricane Center