Air Masses and Fronts

Front

What is an air mass?

Back

An air mass is a large body of air that has uniform temperature and humidity characteristics. It forms over a specific region and can influence the weather in areas it moves into.

Front

What causes cold air to sink?

Back

Cold air sinks because it is more dense than warmer air.

Front

What is a cold front?

Back

A cold front is a boundary that forms when a cold air mass pushes into a warmer air mass, often leading to a sudden drop in temperature and heavy precipitation.

Front

What is a warm front?

Back

A warm front is a boundary that occurs when a warm air mass moves over a cold air mass, leading to gradual temperature increases and often light to moderate precipitation.

Front

What is a stationary front?

Back

A stationary front is a boundary between two air masses that are not moving, which can lead to prolonged periods of cloudy and rainy weather.

Front

What is an occluded front?

Back

An occluded front occurs when a cold front overtakes a warm front, lifting the warm air mass off the ground and often resulting in complex weather patterns.

Front

How does warm air behave in relation to cold air?

Back

Warm air is less dense and tends to rise above cold air.

Front

What type of weather is associated with a cold front?

Back

Cold fronts are often associated with sudden temperature drops, heavy rain, thunderstorms, and sometimes hail.

Front

What type of weather is associated with a warm front?

Back

Warm fronts typically bring gradual increases in temperature and can lead to extended periods of light to moderate rain.

Front

What happens to air movement in a warm front?

Back

In a warm front, warm air slowly pushes out cold air.