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

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

A measurement determined by the wave lengths and sea conditions caused by the effect of wind, and by the movement of tree...

A closed low, also known as a cut-off low, is a low-pressure system that is entirely isolated from the main atmospheric circulation...

Confluence refers to the area where two or more air streams or bodies of water meet and combine. In meteorology, it often...

Precipitation in the form of small balls or lumps of ice that form in thunderstorm updrafts and fall to the ground.

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

An instrument that continuously records atmospheric pressure over time. It uses a barometer to measure pressure and creates...

Anticyclones are areas of high atmospheric pressure that bring hot, dry weather in the summer and cold fronts in the winter.

Indicates the amount of water the soil can absorb/retain through percolation. This capacity is around 7% in sandy soil and...