Weather Systems and Fronts

Front

Air Mass

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A large body of air with uniform temperature, humidity, and pressure.

Front

Continental Polar

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A type of air mass that is cold and dry, originating over land in polar regions.

Front

Continental Tropical

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A type of air mass that is warm and dry, originating over land in tropical regions.

Front

Maritime Polar

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A type of air mass that is cold and moist, originating over oceans in polar regions.

Front

Maritime Tropical

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A type of air mass that is warm and moist, originating over oceans in tropical regions.

Front

High-Pressure Systems

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Areas where the atmospheric pressure is higher than the surrounding area, often associated with clear skies and calm weather.

Front

Low-Pressure Systems

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Areas where the atmospheric pressure is lower than the surrounding area, often associated with clouds and precipitation.

Front

Cold Front

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The boundary of an advancing mass of cold air, which displaces warmer air.

Front

Warm Front

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The boundary of an advancing mass of warm air, which displaces cooler air.

Front

Stationary Front

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A boundary between two air masses where neither is strong enough to replace the other, often causing prolonged cloudy and wet weather.