Tropical Depression Seven strengthened into Tropical Storm Gaston during Monday night with another system attempting to form near the Caribbean.
A budding tropical disturbance has the potential to reach Florida with gusty winds, showers and thunderstorms during Sunday and Monday.
Downpours will persist over flood-ravaged areas of Louisiana through the middle of the week.
A team of researchers accidentally discovered a new clean burning "blue whirl" of fire that could help with oil spill cleanups and reduce carbon emissions.
Thousands of people are in the midst of digging through belongings and returning to flood-damaged homes after days of catastrophic rainfall in Louisiana.