The expected path of a disturbance in the Atlantic Ocean behind Hurricane Erin—with the potential to develop into a cyclone—has shifted since Tuesday, according to data from the National Hurricane Center (NHC).

As of 1:38 p.m. EDT Tuesday, NHC graphics suggested the disturbance was expected to track northwest over Puerto Rico and the Dominican Republic.

By early Wednesday, updated NHC maps instead showed it curving northward before reaching Puerto Rico.

According to the agency, the disturbance had a 10 percent chance of cyclone formation through 48 hours, and a "medium" 60 percent chance through seven days.

More to follow .

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