Tropical storm warning issued along Texas gulf coast as potential 1st named storm of season builds

The video discusses a low-pressure system in the Bay of Campeche pulling moisture into the Gulf of Mexico, leading to expected flooding and heavy rains along the Texas coast, particularly in Corpus Christi. The system may develop into Tropical Storm Alberto, the first of the Atlantic season, but is expected to move into Mexico, causing rain and flooding. Tropical storm warnings are issued from Victoria to the Rio Grande River, advising caution for flash flooding.

When is flooding expected to start according to the information provided?

What potential problems are anticipated due to the incoming rain?