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

Considerable cloudiness refers to weather conditions where a large portion of the sky is covered with clouds, but some clear...

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

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

A blizzard is a storm that lasts 3 hours or more, with persistent winds/frequent gusts of 35 mph or more along with significant...

A cloud of irregular appearance, composed of irregular cloud fragments.

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

Coastal flooding occurs when water from the ocean, sea, or large lakes inundates land areas along the coast, usually due...

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...

Snow that rises to 8 feet or higher.