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

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

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

A strong wind typically ranging from 34 to 40 knots (39 to 46 miles per hour) and often associated with rough seas and stormy...

A mass of very cold, dry air that mostly originates over the Arctic Ocean.

Ice forms on the surface of highways in a very thin layer that is difficult to distinguish from the color of the asphalt...

A weather system refers to the movement of warm and cold air across the globe, usually in a recurring pattern. Systems can...

The percentage of water vapor in the air relative to the maximum amount of water vapor the air can hold at a given temperature.

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

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

A sudden and rapid flow of snow masses accumulated on the slopes of mountainous areas under the influence of gravity or a...