Forecasters say Tropical Storm Nadine has formed over the open tropical Atlantic and could become a hurricane by Thursday.
The National Weather Service said late Tuesday that Nadine was 1080 miles (1738 kilometers) east of the Lesser Antilles and had top speed winds of 40 mph (64 kph). It was moving west-northwest at 15 mph (24 kph).
The storm was expected to resume a northwestward motion on Wednesday and stay on that course for the next few days.
Meanwhile, Post-Tropical Storm Leslie moved out to sea Tuesday afternoon, hours after its stiff winds and heavy rains pummeled Newfoundland, knocking out power to thousands and forcing the cancellation of all flights at the island's main airport.