Dark blue cloudy sky

What is Blocking Pattern?

Occurs when centers of high pressure and/or low pressure set up over a region in such a way that they prevent other weather systems from moving through.

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Glossary

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

Nimbostratus clouds are thick, dark, gray clouds associated with rainy and gloomy days that block the Sun. These clouds,...

A storm characterized by the presence of lightning and its acoustic effect on the Earth's atmosphere known as thunder.

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.

The decrease in temperature with height in an adiabatically rising air parcel (lapse rate). For dry air, this value is 1...

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

Snow that rises to 8 feet or higher.

The lowest level of a given cloud or cloud layer in the atmosphere, relative to the observer's position above the ground.

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