A tropical storm watch is in effect for parts of the Texas and Louisiana coasts for a system that's forecast to become Tropical Storm Arthur on Wednesday.

At least one person has already been killed by flooding in Texas and multiple water rescues have been reported.

Flood watches are in effect for more than 16 million people from South Texas to central and southern Mississippi.

AI-generated summary was reviewed by a CNN editor.

A tropical storm watch has been issued for portions of the Texas and Louisiana coasts for a system that could soon become a short-lived tropical storm.