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

A measurement determined by the wave lengths and sea conditions caused by the effect of wind, and by the movement of tree...

Coastal flooding occurs when water from the ocean, sea, or large lakes inundates land areas along the coast, usually due...

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

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

A weather system refers to the movement of warm and cold air across the globe, usually in a recurring pattern. Systems can...

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

Precipitation in the form of small balls or lumps of ice that form in thunderstorm updrafts and fall to the ground.

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

The term used for turbulence occurring in the absence of clouds or cloud-like elements in the visible area. It is often observed...

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