Dark blue cloudy sky

What is Aeroallergens?

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

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Glossary

A drainage wind that flows downhill due to gravity, often associated with cold air descending from elevated regions.

An anvil is a cloud mostly composed of ice particles. Otherwise known as a cumulonimbus cloud, an anvil has reached the stratospheric...

Anticyclones are areas of high atmospheric pressure that bring hot, dry weather in the summer and cold fronts in the winter.

The occurrence of storms resulting from the horizontal advection of cold air at high levels or the horizontal advection of...

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

A cloud that develops from Cirrus, completely or partially covering the sky, creating a halo effect, thin, sheet-like, milky...

The state of the atmosphere when it contains the maximum amount of water vapor possible at a given temperature and pressure.

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

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

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