The mT and the cP air masses are total contrasts from one another. The mT air masses represents the maritime tropical air masses, while the cP air masses represent the continental air masses.
- The mT air masses form over the seas/oceans in the tropical regions, while the cP air masses form over the land in the polar regions.
- The mT air masses have very high humidity as they form above water, while the cP air masses have low humidity as they form over land.
- The mT air masses are warm because they form in the low latitudes, while the cP air masses are cold as they form in the higher latitudes.
- The mT air masses have low air pressure, while the cP air masses have high air pressure.
- In general, the mT air masses bring in warm and wet weather, while the cP air masses bring in cold and dry weather.
