The National Hurricane Center says the treacherous weather system headed toward Louisiana has intensified to become Tropical Storm Barry.
It's the first tropical storm to threaten the US this year.
But before Barry makes landfall - possibly Saturday in Louisiana - it will likely be a full-blown hurricane, meaning winds will top 74 miles per hour.
But it is not the wind that makes this storm so treacherous. It's the colossal rainfall and massive storm surges.
Streets in New Orleans have already turned into lakes after the storm's outer bands pummeled the city with up to nine inches of rain.