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

The jet stream forming the boundary between tropical air and sub-tropical air, characterized by isothermal compression and...

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

Conduction is the transfer of heat or electricity through a material without the material itself moving. This occurs when...

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

A measure of how hot it feels when relative humidity is combined with the actual air temperature, often referred to as the...

A blizzard is a storm that lasts 3 hours or more, with persistent winds/frequent gusts of 35 mph or more along with significant...

A rapidly rotating column of air extending from a thunderstorm to the ground, capable of causing significant damage.

The term used for semi-stationary high-pressure centers such as the Azores and North Pacific Highs, which occur in the narrow...

A line of severe thunderstorms that can form along or ahead of a cold front, often producing strong winds and heavy rain.

A type of low-altitude cloud that forms in uniform layers, often covering the entire sky and producing overcast conditions.