Dark blue cloudy sky

What is Atmosphere?

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

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Glossary

The formation of fog when warm and moist air passes over a cool or cold surface or, conversely, when cold air passes over...

A narrow band of strong winds in the upper atmosphere, typically flowing from west to east and influencing weather patterns.

A sudden electrostatic discharge during a thunderstorm between electrically charged regions of a cloud, between clouds, or...

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

The process by which a solid changes directly into a gas without first becoming a liquid, such as ice turning into water...

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

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

Frozen drizzle is a dangerous type of frozen rain. It’s a light rain that falls in very fine drops, which freezes on contact...

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

Ice forms on the surface of highways in a very thin layer that is difficult to distinguish from the color of the asphalt...