FORT MYERS, Fla. – The fourth tropical storm of the 2019 Atlantic hurricane season formed Saturday afternoon, according to the National Hurricane Center.

Tropical Storm Dorian is 635 miles east-southeast of Barbados. Maximum sustained winds were clocked at 40 mph. It was moving west at 14 mph and is expected to continue this motion Saturday night. A turn toward the west-northwest is forecast Sunday through Tuesday.

Dorian could strengthen into a hurricane Tuesday, the NHC said.

Dennis Feltgen of the hurricane center said that it’s too early to tell exactly what path the storm will take. Residents of the central and northern Lesser Antilles should monitor the storm’s progress.

There are no coastal watches or warnings in effect.

Contributing: The Associated Press