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 drainage wind that flows downhill due to gravity, often associated with cold air descending from elevated regions.

A weather warning means that a weather hazard is occurring, imminent, or likely. In other words, severe weather is happening...

The expected rate of temperature decrease in an adiabatically rising air parcel when there is no heat exchange with the environment....

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

A closed low, also known as a cut-off low, is a low-pressure system that is entirely isolated from the main atmospheric circulation...

The reflectance rate of a surface, indicating the amount of electromagnetic radiation reflected from the surface. It depends...

The state of the atmosphere when it contains the maximum amount of water vapor possible at a given temperature and pressure.

In a severe storm, with a swirling motion in its left rear quadrant, a vertically rotating column of air, often seen with...

The term used for semi-stationary high-pressure centers such as the Azores and North Pacific Highs, which occur in the narrow...

A towering cloud that often reaches great altitudes and is associated with thunderstorms, heavy rain, and sometimes severe...