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 very cold high pressure that originates over the Arctic Ocean.

A cold core high is a high-pressure system with cold air at its center. These systems are typically associated with clear...

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

CONQ is a meteorological abbreviation for significant convection observed in a specific area, often indicating unstable atmospheric...

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

A type of low-altitude cloud that forms in uniform layers, often covering the entire sky and producing overcast conditions.

The formation of ice crystals on surfaces when the temperature drops below freezing, typically overnight, causing potential...

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

Convection is the vertical movement of air caused by temperature differences, where warm air rises and cool air sinks. It...

A tropical cyclone, also called a hurricane, is a severe tropical storm with wind speeds in excess of 74 mph. Known as a...