(Real Time News from Al.com) – Tropical Storm Isaac got a little weaker on Wednesday night as it moved closer to the Caribbean.
As of 10 p.m. CDT Tropical Storm Isaac was located about 220 miles east of Dominica and was moving rapidly west at 20 mph, according to the National Hurricane Center.
On that path Isaac will move across the central Lesser Antilles and into the Caribbean on Thursday.
Isaac’s winds fell to 50 mph, and the hurricane center said gradual weakening is anticipated over the day or two.
Wind shear continues to take a toll on the storm, and computer models think that shear will stay on the moderate to strong side for a while.
Some of the models show Isaac degenerating into a tropical wave near the Lesser Antilles.
But after that things could change.
Isaac could escape the wind shear that has been tearing it apart and find a more favorable environment by the time it makes it to the western Caribbean, the hurricane center said Wednesday.
“This remains a low confidence forecast until we know if Isaac survives the next couple of days,” the hurricane center said.
A tropical storm warning continued for Martinique, Dominica and Guadeloupe.
A tropical storm watch is also in effect for Antigua, Montserrat, St. Kitts and Nevis and Saba and St. Eustatius. St. Martin and St. Maarten were added to the watch on Wednesday afternoon.