The Southeast U.S. is most affected by humid air from the Gulf of Mexico, leading to summer thunderstorms.

The Southeast U.S. experiences frequent summer thunderstorms due to the humid air from the Gulf of Mexico. As warm, moisture-rich air from the Gulf moves into the region, it interacts with the hot temperatures, creating ideal conditions for thunderstorms. States like Florida, Georgia, and Louisiana are particularly impacted, with high humidity contributing to intense rainfall and lightning. This weather pattern is most common during the summer months when the Gulf's influence is strongest. The combination of heat and moisture in this region leads to frequent and sometimes severe thunderstorms, characteristic of the Southeast's climate.