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

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

A cold core high is a high-pressure system with cold air at its center. These systems are typically associated with clear...

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

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

A thick cloud of tiny water droplets suspended in the atmosphere near the Earth's surface, significantly reducing visibility.

Particles such as pollen, grass seeds, or dust in the air that cause allergies and are transported by winds.

Although it is also used for light winds, it is the general name given to the daily cyclical winds that occur mostly between...

A very cold high pressure that originates over the Arctic Ocean.

The heating of the Earth by the sun causes daily changes in both the direction and speed of the wind. During the day, ground...

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