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

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

In a severe storm, with a swirling motion in its left rear quadrant, a vertically rotating column of air, often seen with...

The temperature at which air becomes saturated with moisture and water vapor begins to condense into liquid form, leading...

Nor'easter is a meteorological event commonly observed in the Northeastern United States and typically occurs during the...

A polar vortex is a circulating mass of air in the atmosphere, typically found in polar regions. This rotating air mass occurs...

A large, organized thunderstorm with a rotating updraft, often producing severe weather such as tornadoes, hail, and heavy...

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

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

A low-pressure area with converging winds, rotating counterclockwise in the Northern Hemisphere and clockwise in the Southern...

An instrument used to measure the speed, force, and sometimes the direction of the wind. It can be cup or pressure tube anemometers....