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 scale for estimating wind speed based on observed conditions of the sea or land. It ranges from 0 (calm) to 12 (hurricane)...

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

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

A towering cloud that often reaches great altitudes and is associated with thunderstorms, heavy rain, and sometimes severe...

Nimbostratus clouds are thick, dark, gray clouds associated with rainy and gloomy days that block the Sun. These clouds,...

A polar vortex is a circulating mass of air in the atmosphere, typically found in polar regions. This rotating air mass occurs...

A strong wind typically ranging from 34 to 40 knots (39 to 46 miles per hour) and often associated with rough seas and stormy...

The scientific study of climate, focusing on the analysis of long-term weather patterns and trends over time.

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

A middle cloud type within the B family in the international cloud classification. These clouds consist of water droplets...