Dark blue cloudy sky

What is Isobar?

A line on a weather map connecting points of equal atmospheric pressure, used to identify high and low-pressure systems.

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Glossary

The branch of science dealing with the laws of motion of air or other gases.

A weather system refers to the movement of warm and cold air across the globe, usually in a recurring pattern. Systems can...

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

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

A weather front formed when a cold front overtakes a warm front, lifting the warm air off the ground and resulting in a mix...

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

The decrease in temperature with height in an adiabatically rising air parcel (lapse rate). For dry air, this value is 1...

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

The state of the atmosphere when it contains the maximum amount of water vapor possible at a given temperature and pressure.

A mass of very cold, dry air that mostly originates over the Arctic Ocean.