As of late Friday morning, Sept. 15, Tropical Depression 15 is moving northwest at 15 miles per hour over the open Atlantic toward the Caribbean Sea.
It's expected to become a hurricane northeast of the Lesser Antilles, according to the National Hurricane Center.
Its highest sustained winds are estimated to be 35 miles per hour, the National Hurricane Center said.
If it becomes a tropical storm, it will be named Nigel.
Coastal flooding accompanied by large and destructive waves from Lee is expected along the southern New England coast Friday afternoon and evening, the National Weather Service said.
Many areas of coastal Massachusetts have tropical storm warnings in effect.
It will continue spreading northward along the coast through Saturday, Sept. 16, with conditions gradually improving late Saturday afternoon into the evening.
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