blocking high

blocking high

[¦bläk·iŋ ′hī]
(meteorology)
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. Also known as blocking anticyclone.
References in periodicals archive ?
The firewall is capable of blocking high risk messages such as anytime interrogation requests; in addition to performing intelligent context checking -- a verification on where any subscriber is, geographically.
They also claimed responsibility for: setting fire to post offices and trains; blocking high roads; attacking police vehicles and motorcycles; and spreading false news about assassinating a number of police personnel, the ministry added in a statement.
Cohen said the storms are going west of the region because there is no blocking high pressure in the North Atlantic that forces cold air from Canada into the northeast.
He said: "Through Monday to Friday after some early cloud it looks as though a blocking high will develop to our north east over Scandinavia.
By blocking high volume hydraulic fracturing, New York inexplicably is denying its citizens the benefits that neighboring states are getting from responsible natural gas development.
AS PEOPLE will no doubt remember, we recently had a lengthy heatwave, caused mainly by a large area of low pressure, referred to as a blocking high.
Massive blocking high pressure from Siberia to Scandinavia will push easterly winds across the UK.
Single weather extremes are often related to regional processes, like a blocking high pressure system or natural phenomena like El Nimo," Stefan Rahmstorf, co-author of the study, said.
However, last year's statistics for Port Talbot were distorted by a period of calm weather in March when, according to a report for the UK and devolved governments, "a blocking high pressure .
It's likely that the mild and wet Atlantic front will grind to a halt as it comes up against the blocking high sitting over Europe, but the uncertainty focuses on exactly where it will stop.
A very warm plume of air is pushing north as blocking high pressure builds to the east of Britain.
The present cold weather has been caused by a blocking high pressure system occurring over our country and this is leading to a prolonged period of cold air, with predominantly easterly winds bringing snow and low temperatures.