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

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

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

A thin, white cloud layer that is intertwined or separate, arranged in regular order, and does not cast a shadow.

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

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A tropical cyclone with sustained winds of at least 74 miles per hour, characterized by a central eye, strong winds, and...

A low-pressure area with converging winds, rotating counterclockwise in the Northern Hemisphere and clockwise in the Southern...

A fixed potential temperature line on adiabats, or the process of thermodynamic changes within a system without any exchange...

A small, intense downdraft that produces damaging winds at the surface, typically lasting a few minutes and often associated...

A measurement determined by the wave lengths and sea conditions caused by the effect of wind, and by the movement of tree...