Dark blue cloudy sky

What is Lightning?

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

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Glossary

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

A large body of air having similar horizontal temperature and moisture characteristics.

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

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

A cold core low is a low-pressure system where the coldest temperatures are found near the center. These systems are often...

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

The temperature at which air becomes saturated with moisture and water vapor begins to condense into liquid form, leading...

A condition in which the stratification of the atmosphere depends on both air temperature and pressure, and where surfaces...

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

Occurs when centers of high pressure and/or low pressure set up over a region in such a way that they prevent other weather...