Chapter 2 Section 2

Naming Air Masses

CoId Air Masses

Warm Ai「 Masses

Cold Front

Diagram and WeatherAssociated with this Front

A large body of air that has similar temperature and

moistu「e throughout,

Named based on its characteristics. Marine: forms

over wate「 and is moist. ContinentaI forms over land

and is dry" Po!a「forms in cold regions and is cold"

Tropical fo「ms near the equator and is warm. Air

masses have 2 iette「s to indicate their cha「〇二mP =

maritime polar.

infIuences cold winter weather over US. Polar air

masses bring extremeIy cold weather to the US.

Maritime po!ar ai「 masses wi‖ bring rain but are not as

coId as the continental air mass over Canada.

4 warm air masses infIuence weather ove「 the US.

丁hey bring hot weather to the US during summer and

miid temperatures during winter"

丁he boundary between 2 air masses・ Weather at the

front is usuaily sto「my・

Cold ai「 masses meets and disp!aces a wa「m alr maSS・

丁he coid air pushes unde「 the warm air and causes

thunderstorms, heavy rain or snow. Cooler weathe「

f01Iows,

Chapter 2 Section 2