MIAMI (CBSMiami) – Subtropical Depression 4 has strengthened into Tropical Storm Dolly.

At 1 p.m., the center of the system was about 370 miles south-southeast of Halifax, Nova Scotia.

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It was moving to the east-northeast at 13 mph. Maximum sustained winds had increased to 45 mph.

The system is forecast to take a turn toward the northeast with an increase in forward speed Tuesday night and on Wednesday.

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Weakening is forecast during the next day or two as Dolly moves over colder waters, and the system is expected to become post-tropical on Wednesday. The low should then dissipate by early Thursday.

There are no coastal watches or warnings in effect.

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