Low Pressure Systems

low pressure system has lower pressure at its centre than the areas around it. Winds converge towards the centre of a low pressure area, and are subsequently forced upwards as shown in the image below. As the air rises, the water vapour within it condenses, forming clouds and often precipitation.

A low pressure system results in a region of converging and rising air. In the northern hemisphere, surface winds within a low pressure system rotate in an anticlockwise direction around its centre.

An area of low pressure is generally associated with poor weather conditions. Lows are sometimes called depressions or cyclones. 

Scroll to Top