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

The reflectance rate of a surface, indicating the amount of electromagnetic radiation reflected from the surface. It depends...

An instrument that continuously records atmospheric pressure over time. It uses a barometer to measure pressure and creates...

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

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

A tropical cyclone with sustained winds of at least 74 miles per hour, characterized by a central eye, strong winds, and...

Snow that rises to 8 feet or higher.

Convection is the vertical movement of air caused by temperature differences, where warm air rises and cool air sinks. It...

A blizzard is a storm that lasts 3 hours or more, with persistent winds/frequent gusts of 35 mph or more along with significant...

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

A deviation from the normal or expected value in atmospheric or climatic conditions, often used in meteorology to identify...