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

Any form of water - liquid or solid - that falls from the atmosphere to the Earth's surface, including rain, snow, sleet,...

A storm characterized by the presence of lightning and its acoustic effect on the Earth's atmosphere known as thunder.

The upward movement of air caused by a topographic barrier, such as a mountain, which can lead to cloud formation and precipitation.

Thermodynamic changes occurring within a system without any exchange of heat with the surroundings. In the atmosphere, changes...

A term used to identify clouds with a base height below 6,000 feet in the observer's direction. Stratiform clouds consist...

A condition in which the stratification of the atmosphere depends on both air temperature and pressure, and where surfaces...

A periodic cooling of sea surface temperatures in the central and eastern Pacific Ocean, often leading to altered global...

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

The names given to the winds blowing from the four cardinal directions (north, east, south, and west - N, E, S, W) on a compass.

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