Dark blue cloudy sky

What is Baroclinicity?

A condition in which the stratification of the atmosphere depends on both air temperature and pressure, and where surfaces of constant pressure intersect with surfaces of constant temperature.

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Glossary

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

The mass of air surrounding the earth and bound to it more or less permanently by the earth's gravitational attraction.

A line of severe thunderstorms that can form along or ahead of a cold front, often producing strong winds and heavy rain.

A thermodynamic change process in the system without any exchange of heat or transfer of energy between systems. This process...

A cold core high is a high-pressure system with cold air at its center. These systems are typically associated with clear...

A bomb cyclone is a large mid-latitude storm that forms when a storm’s central pressure drops (i.e. “bombs out”), resulting...

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

Ball lightning appears during thunderstorms, taking the shape of glowing, electric orbs in the sky. It can appear in a variety...

Local winds that blow from slopes to peaks as a result of the heating of the top slopes without being affected by general...

The percentage of water vapor in the air relative to the maximum amount of water vapor the air can hold at a given temperature.