Dark blue cloudy sky

What is Bow Echo?

An image on the weather radar that is convex to the direction of movement and resembles an arc shape, caused by mesoscale convective movements along a strong thunderstorm line.

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Glossary

The amount of water vapor present in the air, which can affect comfort levels and weather conditions.

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

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

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

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

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

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

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

A cloud that develops from Cirrus, completely or partially covering the sky, creating a halo effect, thin, sheet-like, milky...

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