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

The percentage of water vapor in the air relative to the maximum amount of water vapor the air can hold at a given temperature.

In a severe storm, with a swirling motion in its left rear quadrant, a vertically rotating column of air, often seen with...

Observation of the sky from the observer's location where there are no clouds, and there is no obstruction to visibility....

Cloud or rain droplets containing pollutants, such as oxides of sulfur and nitrogen, to make them acidic.

A rapidly rotating column of air extending from a thunderstorm to the ground, capable of causing significant damage.

A weather front formed when a cold front overtakes a warm front, lifting the warm air off the ground and resulting in a mix...

Weather is the day-to-day meteorological conditions that happen in our atmosphere. Weather can change within minutes, which...

A measure of how hot it feels when relative humidity is combined with the actual air temperature, often referred to as the...

The mass of air surrounding the earth and bound to it more or less permanently by the earth's gravitational attraction.