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

The trapping of heat in the Earth's atmosphere due to greenhouse gases, such as carbon dioxide and methane, which allows...

A weather warning means that a weather hazard is occurring, imminent, or likely. In other words, severe weather is happening...

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

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

The formation of ice crystals on surfaces when the temperature drops below freezing, typically overnight, causing potential...

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

Confluence refers to the area where two or more air streams or bodies of water meet and combine. In meteorology, it often...

Convection is the vertical movement of air caused by temperature differences, where warm air rises and cool air sinks. It...

A thin, white cloud layer that is intertwined or separate, arranged in regular order, and does not cast a shadow.

A middle cloud type within the B family in the international cloud classification. These clouds consist of water droplets...