Depression (meteorology)

A depression (also called a 'low') is an area of low pressure caused by rising air.

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This is opposite to an anti-cyclone which is an area of high pressure.

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Water vapour in the rising air cools and condenses to form clouds and precipitation. For this reason depressions normally bring cloudy, wet and windy weather.

Related Topics:
Water vapour - Condenses - Precipitation

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In the northern hemisphere this rising air tends to circle in an anticlockwise direction due to the coriolis effect.

Related Topics:
Northern hemisphere - Anticlockwise - Coriolis effect

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For more information see Low-pressure cell

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