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 small, intense downdraft that produces damaging winds at the surface, typically lasting a few minutes and often associated...

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

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

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

Any form of water - liquid or solid - that falls from the atmosphere to the Earth's surface, including rain, snow, sleet,...

The names given to the winds blowing from the four cardinal directions (north, east, south, and west - N, E, S, W) on a compass.

The horizontal transport of any feature within the atmosphere due to the movement of air (wind). This includes phenomena...

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

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

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