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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 prefix used in cloud nomenclature to describe middle-altitude clouds that form between 6,500 and 20,000 feet, such as altostratus...

The amount of radiation, heat, or light passing through or flowing from a unit area of a surface.

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

A bomb cyclone is a large mid-latitude storm that forms when a storm’s central pressure drops (i.e. “bombs out”), resulting...

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

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

The large-scale movement of air that distributes heat and moisture around the Earth, influencing weather patterns and climatic...

A type of cloud consisting mostly of small particles such as ice particles.

A condition in which the stratification of the atmosphere depends on both air temperature and pressure, and where surfaces...

The state of the atmosphere when it contains the maximum amount of water vapor possible at a given temperature and pressure.