Forecasters are continuing to track two disturbances Thursday morning as Tropical Storm Dexter moves away from the U.S. and is expected to merge with a trough over the north Atlantic Ocean, according to the National Hurricane Center in Miami.

None of the systems pose an immediate threat to Louisiana.

Dexter becoming post-tropical

As of 4 a.m. Thursday, Dexter was about 425 miles south of Cape Race in Newfoundland, Canada with maximum sustained winds of 50 mph. The tropical storm was traveling east-northeast at about 18 mph.

Over the next several hours, Dexter is expected to merge with a trough and complete its conversion into a post-tropical cyclone, according to NHC forecaster Jack Beven.

The system is expected to strengthen to a hurricane-force low by Friday, but it should gradually

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