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fronts click to hear : fronts

Contact surface between two air masses with different temperatures and pressure.
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See fronts in : french | spanish
surface cold front upper warm front surface warm front stationary front occluded front upper cold front

surface cold front click to hear : surface cold front

Front consisting of a cold air mass that touches the ground and displaces a warm air mass.

upper warm front click to hear : upper warm front

Front consisting of a warm air mass that does not touch the ground and slides over a colder air mass.

surface warm front click to hear : surface warm front

Front consisting of a warm air mass that touches the ground and displaces a cold air mass.

stationary front click to hear : stationary front

Front that moves very slowly owing to the parallel movement of hot and cold air masses.

occluded front click to hear : occluded front

A composite front that forms when a cold front overtakes a warm front, which it pushes to a higher altitude before joining another cold front.

upper cold front click to hear : upper cold front

Front of a cold air mass that does not touch the Earth’s surface and slides over a colder air mass.