1. Air Masses
An air mass is a body of air that has similar temperature and moisture throughout itself
We describe air masses with four key words:
Polar (P)
Tropical (T)
Continental (c)
Maritime (m)
What common words do you associate with each of these terms?

2. Air Mass Vocabulary Polar masses form over frigid regions of earth
Polar = COLD
Tropical masses form over tropical regions
Tropical = WARM
Continental masses form over land
Continental = DRY
Maritime masses form over water
Maritime = WET

3. Maritime Tropical Air Masses
Labeled as mT
A warm, wet air mass that forms over water

4. Maritime Polar Air Masses
Labeled as mP
A cold, wet air mass that forms over water

5. Continental Tropical Air Masses
Labeled as cT
A warm, dry air mass that forms over land

6. Continental Polar Air Masses
Labeled as cP
A cold, dry air mass that forms over land