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 very cold high pressure that originates over the Arctic Ocean.

Particles such as pollen, grass seeds, or dust in the air that cause allergies and are transported by winds.

Nimbostratus clouds are thick, dark, gray clouds associated with rainy and gloomy days that block the Sun. These clouds,...

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

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

The lowest level of a given cloud or cloud layer in the atmosphere, relative to the observer's position above the ground.

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

The term used for turbulence occurring in the absence of clouds or cloud-like elements in the visible area. It is often observed...

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

A strong, downward wind caused by a localized column of air sinking rapidly, often resulting in damage similar to that caused...