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Air Masses and Front
Weather Part 4
| Term | Definition |
|---|---|
| Air Mass | Characteristics of the air identified by temperature and moisture |
| Source Region | Location over which an air mass gets its characteristics |
| cA | Continental arctic |
| cP | Continental polar |
| cT | Continental tropical |
| mT | Maritime tropical |
| mP | Maritime polar |
| Air Masses Are Named After | Their source region an designated by letters |
| Cold Front | A boundary where more dense cold air advances under less dense warm air pushing upward (Weather: thunderstorms, heavy rain, and sharp decrease in temperature) |
| Warm Front | A boundary where less dense warm air advances over the top of more dense cold air (Weather: low clouds and widespread rainfall) |
| Stationary Front | Forms along a boundary where neither air mass is moving (Weather: long widespread rain) |
| Occluded Front | A boundary where fast moving cold front pushes warm air entirely a loft (Weather: long widespread rain and thunderstorm) |