Dark blue cloudy sky

What is Low Pressure System?

A low-pressure area with converging winds, rotating counterclockwise in the Northern Hemisphere and clockwise in the Southern Hemisphere. Also known as a cyclone. It is the opposite of high pressure (anticyclone).

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Glossary

Cloud condensation nuclei are tiny particles in the atmosphere, such as dust, salt, or pollutants, that provide surfaces...

An image on the weather radar that is convex to the direction of movement and resembles an arc shape, caused by mesoscale...

The lowest level of a given cloud or cloud layer in the atmosphere, relative to the observer's position above the ground.

The upward movement of air caused by a topographic barrier, such as a mountain, which can lead to cloud formation and precipitation.

Particles such as pollen, grass seeds, or dust in the air that cause allergies and are transported by winds.

A condition in which the stratification of the atmosphere depends on both air temperature and pressure, and where surfaces...

The horizontal transport of any feature within the atmosphere due to the movement of air (wind). This includes phenomena...

A strong wind typically ranging from 34 to 40 knots (39 to 46 miles per hour) and often associated with rough seas and stormy...

A thermodynamic change process in the system without any exchange of heat or transfer of energy between systems. This process...

Weather conditions are the components that comprise the state of the atmosphere. The six main weather conditions are temperature,...