Dark blue cloudy sky

What is Hail?

Precipitation in the form of small balls or lumps of ice that form in thunderstorm updrafts and fall to the ground.

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Glossary

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

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

A weather front formed when a cold front overtakes a warm front, lifting the warm air off the ground and resulting in a mix...

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

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

The formation of fog when warm and moist air passes over a cool or cold surface or, conversely, when cold air passes over...

Snow that rises to 8 feet or higher.

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

A large body of air having similar horizontal temperature and moisture characteristics.