Tropical Storm Oscar was heading toward the Bahamas late Monday after dumping heavy rain across eastern Cuba. A tropical storm warning was in effect for the central and southeastern Bahamas.

Oscar, which the National Hurricane Center characterized as "very small," is the 15th named storm of the hurricane season.

Tropical Storm Oscar brought heavy rains and winds to Cuba, an island already beleaguered by a massive power outage, late Sunday after brushing the Bahamas. It made landfall as a Category 1 hurricane with maximum sustained winds of 75 mph (120 kph) in the eastern Cuban province of Guantanamo,