Dark blue cloudy sky

What is Anvil Cloud?

An anvil is a cloud mostly composed of ice particles. Otherwise known as a cumulonimbus cloud, an anvil has reached the stratospheric stability level of the atmosphere. It forms in the upper parts of thunderstorms.

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Glossary

The measure of the water vapor or moisture content in the air, expressed as the mass of water vapor per unit volume of air....

The state of the atmosphere when it contains the maximum amount of water vapor possible at a given temperature and pressure.

A middle cloud type within the B family in the international cloud classification. These are shaded clouds that can be white...

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

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

A weather warning means that a weather hazard is occurring, imminent, or likely. In other words, severe weather is happening...

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

The trapping of heat in the Earth's atmosphere due to greenhouse gases, such as carbon dioxide and methane, which allows...

Air laden with sand and dust, common in areas devoid of permanent vegetation, especially deserts.

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