TROPICS: Arlene weakens to a tropical depression in the Gulf of Mexico

NHC has raised <a href="https://twitter.com/hashtag/Invest91L?src=hashtag_click">#Invest91L</a> to a 70% chance of formation over the next 48 hours.. If trends continue a short-lived tropical depression or storm is likely. A hurricane hunter will be investigating the system over the next few hours.<br/>