Even as what was once Hurricane Danny dissolved, Tropical Storm Erika formed in the central tropical Atlantic.
The National Hurricane Center reported Monday night that Erika had maximum sustained winds of 45 mph (75 kph) and was centered 955 miles (1,535 kilometers) east of the Leeward Islands.
Erika is moving west at 20 mph (31 kph), and while no current watches or warnings are in effect, forecasters say some watches may be required for a section of the Leeward Islands by early Tuesday.
Tropical storm-force winds extend outward up to 80 miles (130 kms) from Erika's center.
Earlier, forecasters said the storm Danny, which at its peak was a category 3 hurricane, has degenerated into a remnant low.
The National Hurricane Center made the announcement Monday. It says no watches or warnings are in effect.
The storm is about 45 miles (70 kilometers) west-southwest of Guadeloupe. It has maximum sustained winds of 30 mph (45kph) and is moving west at about 12 mph (19 kph).
The hurricane center says it won't issue any more advisories on the storm.