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

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

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

A prefix used in cloud nomenclature to describe middle-altitude clouds that form between 6,500 and 20,000 feet, such as altostratus...

The decrease in temperature with height in an adiabatically rising air parcel (lapse rate). For dry air, this value is 1...

A line of severe thunderstorms that can form along or ahead of a cold front, often producing strong winds and heavy rain.

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

Air laden with sand and dust, common in areas devoid of permanent vegetation, especially deserts.

An image on the weather radar that is convex to the direction of movement and resembles an arc shape, caused by mesoscale...

Conduction is the transfer of heat or electricity through a material without the material itself moving. This occurs when...