Tropical storm Colin weakened to a tropical low Tuesday, but forecasters said it could regain strength before reaching the U.S. Atlantic seaboard next week.
The U.S. National Hurricane Center in Miami said the remnants of Colin had maximum sustained winds near 65 kilometres an hour, which are comparable to those of a tropical storm.
But the system lacks a defined centre, or the circular movement characteristic of a tropical storm.
The system is about 865 kilometres east of the Leeward Islands and is moving west-northwest at 56 kilometres an hour.
Forecasters said the forward speed of the system is expected to decrease significantly, with winds slowly weakening during the next couple of days.
The hurricane centre said it will not issue any more public advisories unless the system regenerates into a tropical storm.