Weather forecasters have issued Brits with a "thunderstorms expected" warning as conditions look set to get lively before a scorching heatwave.

Despite the grim weather to come this week, it is thought that the UK will experience its hottest day of the year after the storms pass.

Netweather have said that there is a "risk of hail and lightning" today in parts of the country.

In their thunderstorm warning, meteorologist Nick Finnis said "some heavy showers or thunderstorms" could develop across England and Wales, particularly the Midlands, South and East of England.

Luckily, he went on to clarify: "Thunderstorms likely to be isolated given shallow nature of convection."

He added: "Surface water flooding also possible with any storms, particularly following earlier persistent rain. A low risk of lightning possible elsewhere from heavier showers – more particularly N. Ireland."

Netweather say they only issue such warnings when "there is a risk of storms or severe convective weather".

Forecasters all agree that conditions should start picking up from tomorrow (May 13), ahead of a blistering start to next week.

BBC Weather say that weekend temperatures "are forecast to be above average for mid-May with average daily highs of 19-20C expected".

Beyond that, Monday could bring the hottest day of the year so far as the mercury smashes through the previous record of 23.4C (recorded at St James's Park in London on April 15).

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Netweather say that 25C can be expected at around 7pm, with wind conditions and humidity making it feel more like 27C.

Temperatures on Tuesday should peak at around 24C at 10am, again with conditions making things feel warmer.

Speaking to the Daily Express, British Weather Services meteorologist Jim Dale said that this constitutes a "mini-heatwave".

He explained: "This can definitely be called a mini heatwave as we are expecting a period of hot weather which will hold out for a few days at least.

"High pressure will start to build at the weekend with Sunday marking the start of the very warm weather. We could see temperatures in the upper 20Cs into next week."

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