Air Masses & Weather 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 that area.

Front

What are the four main types of air masses?

Back

The four main types of air masses are: 1. Continental Polar (cP) - cold and dry, 2. Continental Tropical (cT) - warm and dry, 3. Maritime Polar (mP) - cold and humid, 4. Maritime Tropical (mT) - warm and humid.

Front

What is a weather front?

Back

A weather front is a boundary between two different air masses. It is where the characteristics of the air masses change, often leading to changes in weather.

Front

What is a cold front?

Back

A cold front occurs when a cold air mass moves into an area occupied by a warm air mass, pushing the warm air upward, often resulting in storms.

Front

What is a warm front?

Back

A warm front occurs when a warm air mass moves into an area occupied by a cold air mass, causing the warm air to rise over the cold air, leading to gradual weather changes.

Front

What is a stationary front?

Back

A stationary front occurs when two air masses meet but neither is strong enough to replace the other, leading to prolonged periods of cloudy and wet 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, often resulting in complex weather patterns.

Front

How does temperature affect air density?

Back

Warm air is less dense than cold air, which is why warm air rises above cold air.

Front

What weather is typically associated with a cold front?

Back

Cold fronts are often associated with thunderstorms, heavy rain, and a drop in temperature.

Front

What weather is typically associated with a warm front?

Back

Warm fronts usually bring gradual increases in temperature, light rain, and overcast skies.