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 measure of the water vapor or moisture content in the air, expressed as the mass of water vapor per unit volume of air....

The horizontal transport of any feature within the atmosphere due to the movement of air (wind). This includes phenomena...

A weather front formed when a cold front overtakes a warm front, lifting the warm air off the ground and resulting in a mix...

The amount of radiation, heat, or light passing through or flowing from a unit area of a surface.

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

In a severe storm, with a swirling motion in its left rear quadrant, a vertically rotating column of air, often seen with...

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

Nor'easter is a meteorological event commonly observed in the Northeastern United States and typically occurs during the...

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

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