Question

What is the origin of a warm, wet air mass?

Answer 1

Maritime tropical (mT) air masses are warm, moist, and usually unstable. Some maritime tropical air masses originate in the subtropical Pacific Ocean, where it is warm and air must travel a long distance over water. ... Some maritime tropical air masses originate over the Gulf of Mexico and Caribbean Sea

Answer 2

Depends where, but i say in the subtropical Pacific ocean, your other choice would be The Gulf of Mexico and the Caribbean Sea