About Jet Stream
Jet streams are fast flowing, narrow, meandering air currents in the atmospheres of some planets, including Earth. On Earth, the main jet streams are located near the altitude of the tropopause and are westerly winds. Their paths typically have a meandering shape.
A change in the weather - is there snow on the way? - BBC Weather
... 3°C! Why the change? As so often with our weather, it comes down to the Jet Stream...
UK weather: Severe warnings issued ahead of Storm Ciarán - BBC Weather
... This explosive cyclongenesis is being driven by a very powerful Jet Stream - winds high in the atmosphere - with speeds of around 200mph (322km/h)...
How was Storm Agnes named and how did we know it was coming?
... A strong Jet Stream (an air current in the Earth s atmosphere) was starting to develop there, he says, something which is often an early sign of stormy weather...
UK weather: Heat-health alert in place as temperatures to hit 32C
... The Met Office said that tropical storms in the far western Atlantic, as well as deep areas of low pressure, have helped to amplify the Jet Stream - a fast wind high in the atmosphere - over the Atlantic Ocean...
UK weather: Storm and wind warnings for England and Wales as NI sees wettest July
... Meteorologists say the wet and cool weather is due to the position of the Jet Stream, a core of strong winds sitting about five to seven miles above the Earth s surface, and which dictate much of the UK s weather...
UK weather: When will it stop raining and the summer improve?
... The two are linked - and crucially it s down to where the Jet Stream is...
Climate change: Last year's UK heatwave 'a sign of things to come'
... One of the elements that might have led to a very hot year in 2022 and may explain the current wetter summer are changes in the Jet Stream, the fast moving winds that carry weather systems across the Atlantic to the UK...
How to manage your holiday in a heatwave
... Why is there no extreme heat in the UK? The Jet Stream dividing the north and south of Europe...
A change in the weather - is there snow on the way? - BBC Weather
By Ben RichBBC Weather
You might have heard rumours that Cold Weather and snow are in the outlook.
It is certainly true that temperatures are set to tumble by The End of the week, But before you dust off the toboggan or, dare I say it, start dreaming of a White Christmas , it might be worth taking a closer look at The Forecast .
How cold is it going to get?None of what is heading our way is unusual for late November - But it will feel like a big change from what we have had So Far this autumn.
An unprecedented September heatwave gave way to a mild and wet October - and that trend has continued So Far this month.
But by the weekend, temperatures in many areas are expected to fall below the seasonal average, particularly in the north and east. We will see daytime highs in single digits for most, with night-time frosts also becoming a feature.
This is far from extreme though. The UK's lowest November temperatures on record came on 14 November 1919, when Braemar in Aberdeenshire saw a daytime high of -11. 1°C, and a bone-chilling overnight low of -23. 3°C!
Why The Change ?As so often with our weather, It Comes down to the Jet Stream .
For much of the autumn the Jet Stream has been racing across The Atlantic , bringing westerly winds and spells of mild, wet and sometimes Stormy Weather .
But This Week The Shape of the Jet Stream is shifting. It will be blowing down from the north or the north-west, bringing northerly winds and a flow of air from The Arctic .
It will feel particularly chilly in eastern and northern parts exposed to The Strongest of those winds.
Will there be snow?While it will be cold enough for some places to see some of the White Stuff , snow lovers in most parts of the UK are likely to be disappointed.
High Pressure is expected to bring a lot of dry weather, particularly in The West , offering a welcome break from the relentless rain of recent weeks.
Lower pressure further east will bring some showers - especially in northern and eastern Scotland and along the East Coast of England. But while snow is expected over High Ground in the Highlands, at lower levels further south it looks unlikely to be cold enough for much in The Way of wintry weather.
Will the Cold Weather last into December?The start of December marks The Beginning of meteorological winter and at this stage, signals from the computer weather models are decidedly mixed.
Most forecasts suggest that the chilly weather will Stick Around for a while next week, But with only limited amounts of rain or snow. It will start to feel less cold as northerly winds abate somewhat.
Some models suggest Low Pressure systems might try to spread from The West by the start of December, which would mean a return of something milder and wetter.
What are the chances of a White Christmas ?It might sound like a cop-out, But it is simply too early to tell!
Most long-range forecasts suggest December is likely to bring spells of wet weather, some brighter interludes, and temperatures around or above the seasonal average.
However, confidence in The Forecast at this range is low. It would only take A Shot of Cold Air at The Right time to bring a flake - or More - of snow on Christmas Day .
So as winter arrives and the festive season approaches, stay In Touch with The Forecast on TV, and on The Bbc Weather App .
Source of news: bbc.com
Jet stream Photos
