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

A small, intense downdraft that produces damaging winds at the surface, typically lasting a few minutes and often associated...

A periodic cooling of sea surface temperatures in the central and eastern Pacific Ocean, often leading to altered global...

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

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...

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

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

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

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

An instrument that continuously records atmospheric pressure over time. It uses a barometer to measure pressure and creates...