BRITAIN’S winter weather 2017 is set to be the harshest for years thanks to a freak phenomenon in the world’s biggest ocean.
Weather phenomenons el nino and la nina explained
Scientists across the globe are convinced the conditions in the Pacific are right to trigger the La Niña – which has a devastating effect on weather patterns.
To make matters worse La Niña is on a meteorological collision course with two Atlantic weather systems known as the North Atlantic Oscillation and Quasi-biennial Oscillation.
And the cumulative effect is likely to spark a very cold winter with blizzard conditions.
Although less well-known than its bigger brother El Nino, La Niña (Spanish for ‘the girl’) is an event that can trigger significant weather shifts.
Winter weather UK: 2017 is set to be the harshest for years
The effect is likely to spark a very cold winter with blizzard conditions
During El Niño, temperatures in the equatorial Pacific can warm by as much as 3°C. La Niña tends to be smaller and rarely exceeds 2°C, but its effects reach across the globe and can have just as much impact
La Niña brings colder weather and heavy rains to northern Europe while the two other systems send temperatures plummeting turning rain into blizzard-like snowfall.
And the phenomenon is not confined to Europe.
La Niña brings colder weather and heavy rains to northern Europe
The effects of La Niña will also be massively strengthened by the so-called Pacific Decadal Oscillation (PDO) and the Alberta Low which both cause dramatic falls in temperature.
The PDO is a huge ocean system similar to the El Nino, which operates over periods of 20 to 30 years and brings either cooler or warmer weather to mainland and eastern USA.
UK weather 2017 in pictures
Tue, September 12, 2017
Britain’s weather in pictures
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And spokesman for another YouTube weather channel Hurricane and Winter Tracker warned of chaos.
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