We have all experienced a sudden change in temperature and weather conditions. This typical when a front or an air mass passes through a region.

We have all experienced a sudden change in temperature and weather conditions. This typical when a front or an air mass passes through a region. An air mass is a large atmospheric area in the lower atmosphere with similar temperature and moisture. Class can you discuss the behavior/movements of air masses? What are the major types of air masses or fronts that we experience in North America?