Saturday, 17 Apr 2021

UK snow map: Chart turns red as -3C air grips nation – ‘Snow showers’ to hit South East

BBC Weather: UK set for cloud and frosty conditions

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A new weather system is forecast to hit the UK tomorrow as northerly winds bring wintry conditions and bitterly cold lows of -3C. Snow risk maps from Netweather on Thursday, March 18, showed swirls of red, yellow and green sweeping over northern regions of the UK, including Scotland, Northumberland, Cumbria, Liverpool and Manchester. This suggests there is between 30 to 85 percent chance of snow hitting.

Further south, swirls of green cover southern regions including London, Bath and Kent, which could mean there is a 30 to 45 percent chance of snow arriving on the same day.

Weather Outlook forecaster Brian Gaze added the latest models assessing temperatures, showed wintry air barreling over from a north-easterly direction during this week.

Hr wrote on Twitter: “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.”

Mr Gaze explained further in his weekly forecast: “Towards the end of the week it may turn colder, especially in the east and southeast where there is the possibility of snow showers for a time.

“Sunday starts with showers in the west but elsewhere it is mainly dry. This morning outbreaks of rain develop in the northwest of the UK and through the day they steadily push southeastwards.

“The heaviest rain will be in the west with areas to the south and east remaining drier. The brightest conditions are likely to be in northern and eastern counties.

“Tuesday and Wednesday are looking mainly dry, but isolated showers are possible. In eastern Britain, it probably stays quite chilly but the west has milder conditions.

“Night frosts are possible and in the east daytime temperatures could dip significantly as the high pressure becomes centred further west and colder air moves down its eastern flank.

“Later on there is a risk of sleet or snow showers in eastern and southeastern England and nighttime frosts become more widespread.”

Temperatures could plunge as low as -3C in Scotland on Friday, according to WXCHARTS.

Carlisle and the Lake District in the northwest also appear to be hit with subzero lows of -2C on the same day, while eastern and southern areas average a freezing 0C.

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BBC Weather’s long-range forecast between Saturday, March 13 and Sunday, March 21 added snow could arrive in the Scottish Highlands tomorrow.

The forecast said: “Monday should be largely dry with just the odd isolated shower as a ridge of high pressure topples across the UK.

“However, this will be a rather weak feature, and a new frontal system will move towards Scotland and Northern Ireland, bringing rain during the evening with some sleet or snow for the Highlands.

“Overnight, rain will also spread across Wales and England, although it might not quite reach eastern and southernmost England.

“During Tuesday, rain will reach all areas and it should linger across the eastern half of the country through to the evening.

“Northern Ireland, Wales, western Scotland and southwest England will become drier with some sunshine developing through the afternoon.

“Wednesday onwards will be drier with some sunshine as high pressure builds.”

The Met Office added wintry showers could hit from Thursday as temperatures turn “colder than average”.

The forecast between Thursday, March 18 and Saturday, March 27, said: “Temperatures potentially much colder than average in the south, particularly the southeast, 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.

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

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