Blocking high

From Glossary of Meteorology
(Redirected from Block)

blocking high

(Or blocking anticyclone.) Any high (or anticyclone) that remains nearly stationary or moves slowly compared to the west-to-east motion "upstream" from its location, so that it effectively "blocks" the movement of migratory cyclones across its latitudes.

A blocking high may comprise a smaller-scale effect than that associated with large-scale blocking.

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