Low-pressure system — What does it mean? | Weather glossary

A low-pressure area of unstable air. It generates clouds, rain, wind and changeable weather. In the tropics it can develop into a tropical system.

Related terms

Atmospheric pressure The weight of the air above a point. High pressure usually means settled weather… Anticyclone A high-pressure area. It brings clear skies and dry, stable weather, though in w… Cold front The boundary where a cold air mass pushes out a warmer one. It usually brings sh…