UK weather forecast: 73F heat to roast Britain before Arctic system strikes – new maps

UK weather: Sunny spells with scattered showers expected

We use your sign-up to provide content in ways you’ve consented to and to improve our understanding of you. This may include adverts from us and 3rd parties based on our understanding. You can unsubscribe at any time. More info

The latest heat maps from Netweather show highs of 23C hitting London and Kent in the south-east on Wednesday, September, 20, with Hertfordshire, Essex and North Yorkshire seeing 22C. However, the latest wind speed charts from WXCHARTS also show gusts appearing to swirl from a northerly direction in the Arctic down towards the UK on Friday, potentially pushing the warm air away. Netweather forecaster Nick Finnis predicted the week will start on a warm and sunny note, before low pressure from the Arctic region of Greenland pushes cooler air towards northern Britain.

He said: “A ridge of high pressure building in from the southwest across southern Britain will ensure many will be dry over the next few days.

“Mornings will start off on the cool side, chilly in the north, but with sunny spells across many areas, the afternoons will feel warm in the sunshine.

“Changes from mid-week, as high pressure retreats and allows a strong jet stream coming out of northern Canada across southern Greenland to slip down towards northern Britain.

“The jet stream will bring low pressure systems southeast close to Scotland, tightening isobars across the UK, bringing cooler and windy conditions for the second half of the week, with gales likely in the north – along with spells of rain or showers.”

Brian Gaze, a forecaster at Netweather, also expected the week to kick off with warm air sweeping the nation, but cooler air to hit later on as the autumn equinox and start of the new season arrives.

He said: “The autumn equinox takes place on Wednesday, September, 22, but so far this month there has been a very summery flavour to the weather.

“Things are set to change somewhat during the second half of the week as cooler air pushes down from the northwest. However, in southern and central regions it continue to be quite dry.

“Tomorrow will be mostly dry with sunny spells, although thicker cloud continues to bring some patchy spells of rain to western Scotland. Temperatures similar to recent days.

“During Wednesday a band of rain pushes southeastwards. By the late afternoon it may be straddled across the south west, Wales and northern England.

“Areas to the south east remain dry and bright. To the north west there will be sunny spells but also heavy showers. Windy in the north.

“Through Thursday an area of rain moves southwards across the northern half of the UK. It is expected to become lighter and more fragmented by the evening. To its south there will be warm sunny spells.

“Areas to its north also turn brighter, but temperatures will be lower. It could be very windy in the north for a time.

DON’T MISS
UK weather forecast: Temperatures set to soar – latest maps [MAPS]
BBC Weather: Brits to bake in mid-September sunshine [VIDEO]
UK long-range forecast: Brutal storms on way – 3 tropical tempests [CHARTS]

“Forecast confidence for Friday and the weekend is low. The favoured outcome is for changeable conditions. Rain is most likely in the north and west. The south and east should be drier and warmer at times.”

The BBC’s long-range forecast between Saturday, September 18, and Sunday, September 26, added the start of this week could see temperatures rise “above average”, before dropping to cooler levels by the weekend.

The forecast said: “The start of the week should see some drier and sunnier skies for a time.

“High pressure will be shifting south across northern Europe and weakening, and by midweek a cold front will begin to push in from the northwest.

“This first front is likely to bring some rain to the northern half of the country, but by the end of the week and weekend, wet weather is expected widely.

“Temperatures at the start of the week will be slightly above average and gradually moderate, becoming slightly below average by the weekend.”

The Met Office also predicted north-western regions of the UK to bear the brunt of the low pressure towards the end of the month, while the south-east of England still seems “drier and sunnier” weather.

The forecast between Friday, September 24, and Sunday, October 3, said: “Friday look to be widely unsettled, with much of the UK receiving showers or longer spells of rain, as well as windy conditions.

“Northwestern areas will likely see the heaviest rain and coastal gales. The south will see the best conditions with good sunny spells. From the weekend onwards, a very general northwest to southeast split to our weather is likely to develop.

“The northwest is expected to see the most of any unsettled conditions: outbreaks of rain, possibly heavy at times, and strong winds, possibly coastal gales.

“Drier and sunnier weather looks more likely across the southeast, though unsettled weather in the northwest could still spread here at times.

“Temperatures generally near or slightly below average, but may slightly rise towards the end of this period.”

Source: Read Full Article