Dark blue cloudy sky

What is Squall Line?

A line of severe thunderstorms that can form along or ahead of a cold front, often producing strong winds and heavy rain.

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Glossary

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

A weather watch means there is a risk of weather hazards in the near future, which could pose a threat to life/property....

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

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

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

An anvil is a cloud mostly composed of ice particles. Otherwise known as a cumulonimbus cloud, an anvil has reached the stratospheric...

Ice forms on the surface of highways in a very thin layer that is difficult to distinguish from the color of the asphalt...

Jet streams are strong, fast-flowing air currents in the upper levels of the atmosphere. They form when warm air masses meet...

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

A sudden and rapid flow of snow masses accumulated on the slopes of mountainous areas under the influence of gravity or a...