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 cloud of irregular appearance, composed of irregular cloud fragments.

A cold core low is a low-pressure system where the coldest temperatures are found near the center. These systems are often...

Frozen drizzle is a dangerous type of frozen rain. It’s a light rain that falls in very fine drops, which freezes on contact...

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

The term 'cloudy' refers to weather conditions characterized by a significant amount of cloud cover in the sky. This may...

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

Considerable cloudiness refers to weather conditions where a large portion of the sky is covered with clouds, but some clear...

A towering cloud that often reaches great altitudes and is associated with thunderstorms, heavy rain, and sometimes severe...

Occurs when centers of high pressure and/or low pressure set up over a region in such a way that they prevent other weather...

Confluence refers to the area where two or more air streams or bodies of water meet and combine. In meteorology, it often...