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

Coastal flooding occurs when water from the ocean, sea, or large lakes inundates land areas along the coast, usually due...

A periodic warming of sea surface temperatures in the central and eastern Pacific Ocean, significantly influencing global...

A scale for estimating wind speed based on observed conditions of the sea or land. It ranges from 0 (calm) to 12 (hurricane)...

The heating of the Earth by the sun causes daily changes in both the direction and speed of the wind. During the day, ground...

Frozen drizzle is a dangerous type of frozen rain. It’s a light rain that falls in very fine drops, which freezes on contact...

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

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

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

The temperature at which air becomes saturated with moisture and water vapor begins to condense into liquid form, leading...

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