The National Hurricane Center continued to keeps its focus Friday on what had been Category 4 major Hurricane Helene as it moved inland as a tropical storm, but also was keeping tabs on newly formed Tropical Storm Joyce and Hurricane Isaac in the Atlantic and two more systems with a chance to develop into the season’s next tropical depression or storm.

With Hurricane Helene having turned into a post-tropical cyclone but still dumping rain in the Southeast U.S., the National Hurricane Center turned its attention to two developing systems with