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 tropical cyclone with sustained winds of at least 74 miles per hour, characterized by a central eye, strong winds, and...

The large-scale movement of air that distributes heat and moisture around the Earth, influencing weather patterns and climatic...

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

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

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

A rapidly rotating column of air extending from a thunderstorm to the ground, capable of causing significant damage.

The horizontal transport of any feature within the atmosphere due to the movement of air (wind). This includes phenomena...

A strong wind typically ranging from 34 to 40 knots (39 to 46 miles per hour) and often associated with rough seas and stormy...

Occurs when centers of high pressure and/or low pressure set up over a region in such a way that they prevent other weather...

A cloud of irregular appearance, composed of irregular cloud fragments.