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 ?
A normal Atlantic low pressure in winter carries at least an inch of rain, but very often two as it runs into a blocking high pressure.
A spokesman said: "An area of blocking high pressure looks set to dominate and that could mean slow-moving features which bring the same type of weather for quite a persistent long period of time.
The choke is designed specifically for blocking high frequency AC current in the circuit, while allowing low frequency DC current to pass through it.
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.
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.
Campion's, partially blocking High Street and two men from a nearby barbershop in the street flagging him down.
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.
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.
They say that blocking high number of websites may result into slow performance by routers and increased latency due to high number of filters over the net work.
A very warm plume of air is pushing north as blocking high pressure builds to the east of Britain.