Heavy rains were forecast to start late Friday in Antigua and Barbuda, the U.S. and British Virgin Islands and southern and eastern Puerto Rico.

Erin is expected to become a hurricane Friday, Aug. 15 and a major hurricane by Sunday morning. What Florida can expect from the storm.

Hurricane Erin, now a Category 3 storm, is expected to strengthen and become a Category 4 hurricane, with maximum sustained winds of 150-mph.