Dark blue cloudy sky

What is Ball Lightning?

Ball lightning appears during thunderstorms, taking the shape of glowing, electric orbs in the sky. It can appear in a variety of colors, from blue to orange to yellow, and is sometimes accompanied by a hissing sound and an acrid odor.

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Glossary

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

A weather front where two air masses meet but neither is strong enough to move the other, often resulting in prolonged periods...

The occurrence of storms resulting from the horizontal advection of cold air at high levels or the horizontal advection of...

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

A sudden and rapid flow of snow masses accumulated on the slopes of mountainous areas under the influence of gravity or a...

A closed low, also known as a cut-off low, is a low-pressure system that is entirely isolated from the main atmospheric circulation...

Condensation pressure deficit refers to the difference between the actual vapor pressure and the saturation vapor pressure...

The formation of ice crystals on surfaces when the temperature drops below freezing, typically overnight, causing potential...

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

The measure of the water vapor or moisture content in the air, expressed as the mass of water vapor per unit volume of air....