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

A distinct layer in a body of water where the temperature changes rapidly with depth, separating warmer surface water from...

Bright and dark rays with changing colors and contrast in the sky. These rays become visible due to the reflection of atmospheric...

An instrument for measuring atmospheric pressure.

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

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

The process by which a solid changes directly into a gas without first becoming a liquid, such as ice turning into water...

A scale for estimating wind speed based on observed conditions of the sea or land. It ranges from 0 (calm) to 12 (hurricane)...

Although it is also used for light winds, it is the general name given to the daily cyclical winds that occur mostly between...

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