After Hurricane Helene, Kamala Harris and her allies argue that Donald Trump would make Americans more vulnerable to extreme weather fueled by climate change.

With Hurricane Helene having turned into a post-tropical cyclone but still dumping rain in the Ohio Valley and Southeast U.S., the National Hurricane Center turned its attention to two developing systems with growing chances to form into the season’s next tropical depression or storm while also keeping track of Hurricane Isaac and Tropical Storm Joyce in the Atlantic.