Dark blue cloudy sky

What is Cumulus?

Large, fluffy white clouds with flat bases, typically indicating fair weather, though they can develop into storm clouds under the right conditions.

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Glossary

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

Frozen drizzle is a dangerous type of frozen rain. It’s a light rain that falls in very fine drops, which freezes on contact...

A strong, downward wind caused by a localized column of air sinking rapidly, often resulting in damage similar to that caused...

Cloud condensation nuclei are tiny particles in the atmosphere, such as dust, salt, or pollutants, that provide surfaces...

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

A sudden electrostatic discharge during a thunderstorm between electrically charged regions of a cloud, between clouds, or...

Weather intelligence is technology that provides predictive and actionable insights, allowing businesses to adapt to weather-related...

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

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

Particles such as pollen, grass seeds, or dust in the air that cause allergies and are transported by winds.