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

The occurrence of storms resulting from the horizontal advection of cold air at high levels or the horizontal advection of...

Nimbostratus clouds are thick, dark, gray clouds associated with rainy and gloomy days that block the Sun. These clouds,...

A cold front is the leading edge of a cold air mass that replaces a warmer air mass. It is typically associated with sudden...

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

A low-pressure area with converging winds, rotating counterclockwise in the Northern Hemisphere and clockwise in the Southern...

The mass of air surrounding the earth and bound to it more or less permanently by the earth's gravitational attraction.

Occurs when centers of high pressure and/or low pressure set up over a region in such a way that they prevent other weather...

The situation where there is no advection because the constant pressure surfaces and temperature surfaces in the atmosphere...

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

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