Weather and Air Masses

Front

Air Mass

Back

A large body of air comprised of similar properties, or characteristics, such as temperature & humidity.

Front

Continental Air Mass

Back

An air mass that forms over land; it is normally relatively dry.

Front

Maritime Air Mass

Back

Body of air that is moist because it formed over an ocean.

Front

Polar Air Mass

Back

Air mass that forms over cold regions, and has high pressure.

Front

Tropical Air Mass

Back

A warm air mass that forms in the tropics and has low air pressure.

Front

Pressure Gradient

Back

The amount of pressure change occurring over a given distance.

Front

Condensation

Back

The change of state from a gas to a liquid.

Front

Humidity

Back

A measure of the amount of water vapor in the air.

Front

Altitude

Back

Distance above sea level.

Front

Weather Front

Back

A boundary that forms when air masses meet that have different temperature, pressure, and humidity conditions.