Dark blue cloudy sky

What is Cumulonimbus?

A towering cloud that often reaches great altitudes and is associated with thunderstorms, heavy rain, and sometimes severe weather like hail or tornadoes.

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Glossary

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

Considerable cloudiness refers to weather conditions where a large portion of the sky is covered with clouds, but some clear...

A very cold high pressure that originates over the Arctic Ocean.

The lowest level of a given cloud or cloud layer in the atmosphere, relative to the observer's position above the ground.

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

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

Condensation pressure deficit refers to the difference between the actual vapor pressure and the saturation vapor pressure...

A measurement determined by the wave lengths and sea conditions caused by the effect of wind, and by the movement of tree...

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

The term 'cloudy' refers to weather conditions characterized by a significant amount of cloud cover in the sky. This may...