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

Precipitation in the form of small balls or lumps of ice that form in thunderstorm updrafts and fall to the ground.

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

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

The heating of the Earth by the sun causes daily changes in both the direction and speed of the wind. During the day, ground...

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

Ice forms on the surface of highways in a very thin layer that is difficult to distinguish from the color of the asphalt...

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

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

Cloud or rain droplets containing pollutants, such as oxides of sulfur and nitrogen, to make them acidic.

An elongated area of relatively low atmospheric pressure, often associated with unsettled weather conditions like storms...