Over the weekend, northern portions of the Leeward Islands, the Virgin Islands, and Puerto Rico are expected to receive tropical rain ranging from 2 to 4 inches, with isolated totals up to 6 inches. Flash flooding, landslides and mudslides will be the main concerns over the next several days.

A tropical storm watch remains in effect for St. Martin, St. Barthélemy and Sint Maarten, but the storm should largely spare the Lesser Antilles. Puerto Rico could see rain showers and blustery winds,

(Reuters) -Hurricane Erin has developed into a dangerous Category 4 hurricane, the U.S. National Hurricane Center (NHC) said on Saturday, adding that maximum sustained winds have increased to 130 mph (215 km/h) with higher gusts.