NEW Fronts and Air Masses

Front

What is a low pressure system?

Back

A low pressure system is an area where the atmospheric pressure is lower than that of the surrounding areas, often leading to cloudy skies and precipitation.

Front

What does the symbol 'L' represent on a weather map?

Back

The symbol 'L' represents a low pressure system.

Front

What is a high pressure system?

Back

A high pressure system is an area where the atmospheric pressure is higher than that of the surrounding areas, typically associated with clear skies and calm weather.

Front

What does the symbol 'H' represent on a weather map?

Back

The symbol 'H' represents a high pressure system.

Front

What is a cold front?

Back

A cold front is the leading edge of a cooler mass of air that replaces a warmer mass of air, often resulting in thunderstorms.

Front

What is a warm front?

Back

A warm front is the leading edge of a warmer mass of air that replaces a cooler mass of air, usually bringing gradual increases in temperature and precipitation.

Front

What is an occluded front?

Back

An occluded front occurs when a cold front overtakes a warm front, leading to complex weather patterns and often heavy 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 rain.

Front

How does air move in a low pressure system?

Back

In a low pressure system, air rises because it is less dense.

Front

How does air move in a high pressure system?

Back

In a high pressure system, air sinks because it is more dense.