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 closed low, also known as a cut-off low, is a low-pressure system that is entirely isolated from the main atmospheric circulation...

A very cold high pressure that originates over the Arctic Ocean.

A cold front is the leading edge of a cold air mass that replaces a warmer air mass. It is typically associated with sudden...

Meteorology is the scientific study of the atmosphere and weather processes. It involves observing, analyzing, and forecasting...

Anticyclones are areas of high atmospheric pressure that bring hot, dry weather in the summer and cold fronts in the winter.

A term used to identify clouds with a base height below 6,000 feet in the observer's direction. Stratiform clouds consist...

The names given to the winds blowing from the four cardinal directions (north, east, south, and west - N, E, S, W) on a compass.

A prefix used in cloud nomenclature to describe middle-altitude clouds that form between 6,500 and 20,000 feet, such as altostratus...

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

Snow that rises to 8 feet or higher.