In meteorology, an air mass is a volume of air defined by its temperature and water vapor content. Air masses cover many thousands or billions of square miles, and adapt to the characteristics of the surface below them. They are classified according to latitude and their continental or maritime source regions.
How are fronts created. as air masses move and meet each other. Severe weather occurs along. boundaries between air masses, at the fronts. The conditions of air in the air mass associated with. place air mass originated. Example: Continental Polar air mass originates or forms over continent in polar region.
Maritime tropical air masses originate over the warm waters of the tropics and Gulf of Mexico, where heat and moisture are transferred to the overlying air from the waters below. The northward movement of tropical air masses transports warm moist air into the United States, increasing the potential for precipitation.