Tropical Storm Sara is the third named storm to emerge this November, serving up a reminder that the Atlantic hurricane season isn't quite over.

This November surge follows Tropical Storm Patty and Hurricane Rafael, making it an unusually active final month for the hurricane season, which typically produces only one named storm every year or two. Experts cite warm ocean temperatures as a possible factor, though the role of climate change in extending hurricane seasons remains debated.

The National Hurricane Center said Wednesday it is tracking a system in the Caribbean that could soon strengthen into Hurricane Sara.