The maritime tropical air mass forms over the Gulf of Mexico.
An air mass that forms over the Gulf of Mexico will be extremely warm and humid. This could bring the potential for heavy rains over Texas, especially inland. Otherwise, it will simply be very muggy, and unseasonably warm and humid.
Gulf of Mexico
There's the Pacific Ocean, the Atlantic Ocean, and the Gulf of Mexico.
A bay is smaller than a gulf and a sea is larger than a gulf
ok I
The maritime tropical air mass moving into the southeastern US would be expected to become modified more quickly. This is because the warm, moist maritime tropical air mass is more susceptible to modification when encountering the colder land surface of the southeastern US, compared to the Arctic air mass moving over the relatively warmer Gulf of Mexico.
A warm, moist air mass from the Gulf of Mexico, known as a maritime tropical air mass, would likely cause a hot and humid spell in the northeastern US during summer. This air mass brings warm and humid conditions, leading to high temperatures and high levels of humidity.
A continental tropical air mass formed over northern Mexico would bring hot and dry weather to the southwestern US. This air mass is associated with high temperatures and low humidity, resulting in sunny and clear skies with minimal chances of precipitation.
I don't know but the name is sitting there right in the middle of the gulf. No land mass under the name. Must be some kind of error. It looks as though the spot on the map is 180 degrees opposite longitudinally, and on the same latitude. Its almost as if there was an actual paper map folded in half, and Serampore is bleeding through... weird.
Continental tropical (cT)
I'm a bit confused by your question. Are you asking how the Gulf of Mexico originated or how the Gulf of Mexico oil spill started? I have included a link describing the geological processes by which the Gulf of Mexico was created over 300 million years ago. There existed a single super continent called Pangae, which included Europe, Africa, South America and North America. The land mass began to sink, millions of years ago and the continents moved away from each other. It was an extremely slow process taking place over hundreds of millions of years (during the Mesozoic Era). See related links.