A tropical or subtropical depression is likely to form in the western Gulf of Mexico Thursday night or Friday. This system will bring a threat of heavy rain and possible flooding to the northern Gulf Coast this weekend. Coastal flooding, high surf and rip currents will also be threats at the coast.

A tropical depression or storm will likely develop over the western Gulf of Mexico by later today or Monday and pose a threat of flash flooding along parts of the Texas and Louisiana coasts through midweek.

A storm hovering over Cuba will take aim at Florida's west coast and the Gulf of Mexico, with federal forecasters saying it's likely to become a tropical storm by late Saturday. Until then, the front is being called Tropical Depression Four, with the name Debby available should it graduate to tropical storm.

TAMPA, Fla. (WFLA) — Tropical Storm Debby has officially formed over the southeastern Gulf of Mexico, the National Hurricane Center announced in a 5 p.m. update. Forecasters now expect Debby to reach Category 1 hurricane strength as it reaches the Big Bend region of Florida.