Much of the UK on Wednesday will remain dry but cloudy for the morning going into the afternoon, with temperatures in the mid-teens. As we reach the afternoon patches of sunshine are expected to develop in the south of the country while the Midlands can and parts of Wales can still expect cloudy skies. With this sunshine will come the hottest temperatures as the Met Office forecast a high of 25 degrees with the majority of the rest of the country reaching the low 20s.
The east coast of the UK will see the coldest temperatures with 14 degrees Celsius in Newcastle.
The Met Office meteorologists Alex Deakin and Aidan McGivern also defined what a heatwave was in greater detail as part of their forecast.
Mr Deakin said: “It is 25 degrees that heatwave threshold across Scotland, Northern Island, much of Northern England, Wales and the far southwest of England and that ranges up to 28 degrees Celsius in the capital.
“We have to reach those temperatures for three days and those temperatures were calculated based on the average temperature in the middle of summer. and how that varies across the country.”
The pair of meteorologist then questioned whether the UK can expect the heatwave to begin on Wednesday or later on in the week.
Mr McGivern said: “Temperature are rising certainly across Europe as we have been drawing up the heat across the UK.
“Over the next few days temperatures will rise and it is actually western parts of the UK initially that will see the highest temperatures.
“Thursday shows this broad area across west Wales, west and southwest England in addition to parts of Ireland where temperatures are expected to be mid to high at 24-28C.
“There is a plume of warmth stretching across the west coast whereas in the east actually not that warm at all.”
Mr Deakin added that along the east coast it may be considerably colder than the rest of the country and emphasised that not everywhere in the country would be getting the hottest temperatures at the same time.
He closed by adding: “It will be pretty warm tomorrow in the sunshine and humid but Thursday we could start to see those temperatures closer to 30 degrees.
“It is a similar scene on Friday with the heat just a little bit more energy to it.”
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