Gulf Coast under tropical storm threat

A roughly 700-mile stretch of the Gulf Coast from Louisiana to the Florida Panhandle is under a tropical storm threat, and forecasters warn the storm could intensify into a hurricane, the first of the season in the Atlantic. Rob Marciano has more.

A roughly 700-mile stretch of the Gulf Coast from Louisiana to the Florida Panhandle is under a tropical storm threat, and forecasters warn the storm could intensify into a hurricane, the first of the season in the Atlantic. Rob Marciano has more.