UK weather forecast: Chart turns blue as big freeze returns – ‘very cold air’ grips nation

BBC Weather: Unsettled conditions across Europe to bring snow

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A cold-weather system is set to sweep across the UK from the end of next week and send temperatures spiralling below freezing. In a post on Twitter, the Weather Outlook warned snow is also “likely” to fall in some parts of the UK. The weather channel shared a series of maps on social media showing freezing-air moving in a westerly direction from Europe on Friday, March 19.

Eastern areas of the UK is set to feel the worst of the cold-blast before it shifts across the whole of Britain by next weekend.

The latest 850 hPA Temperature model, which measures mercury 1.5km above sea level, show the atmosphere reaching lows of -10C over the South East on Friday.

The deep-freeze is set to remain over the UK for the following 72 hours, with 850 hPA Temperature models shows mercury remaining at -10C over the South East and East Anglia on Sunday March, 21.

Elsewhere, the temperature model forecasts atmospheric lows of -7C across the North and -5C in Scotland.

In the winter months, an 850hPa temperatures below -5C means it is cold enough for snow, according the Weather Outlook.

In a post on Twitter, the Weather Outlook wrote: “Today’s 00z ECMP brings some very cold upper level air in from the east late next week.

“Snow showers would be likely in places.”

Snow risk maps produced separately by NetWeather.TV predict parts of the South East could snowfall on Friday.

Snow risk models show areas of the South East and East Anglia turning a shade of green – this indicates the threat of wintry showers ranges from between 30-45 percent.

Other weather maps produced by WXcharts show ground-level temperatures could reach lows of -3C next weekend.

Temperatures models predict the South will feel the worst of the cold-conditions with large areas of the Midlands, Wales and London turning ice-blue overnight on Friday, March 19.

Wales could see mercury plummet to -3C, the south of England -2C and -1C in the Midlands, by 6am on Saturday morning.

Across the North and in Scotland temperatures will remain above freezing with lows of 3C.

The Met Office long range forecast from Thursday March 18 says: “There is a risk of morning frost and fog patches, particularly in the west.

“Temperatures potentially much colder than average in the south, particularly the south east, where showers could be wintry for a time, but likely milder across the north.

“The end of the period will most likely see another period of unsettled weather, with spells of rain and some strong winds crossing all parts of the UK, interspersed with drier and brighter interludes.

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“Temperatures are expected to be at or slightly below average for this time of year by the end of the period.”

Next week is set to be divided with the best of the conditions from Monday into Tuesday as high pressure builds over Ireland and western parts of the UK.

Temperatures are set to hit double figures on both days – remaining dry and bright for most parts of the country.

High pressure is set to give way to the cold-blast by the end of the week, with sunshine replaced by fog and early morning frost.

The BBC weather outlook adds: “High pressure is likely to become established near or over Ireland by the middle of the week, and this will promote a period of drier conditions by midweek and through the second half of the week, with increased sunshine and less wind.

“However, there could be chilly nights with a chance of frost and fog patches.

“This settled weather could last until the end of the week but there are some indications of the high pressure declining, and changeable conditions look like returning for the week beginning March 22, with occasional rain and increased winds.”

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