People in Berkshire urged to stay out of the sun this week

The weather warning applies to much of the east of the county Met Office

This hot weather is then expected to trigger thunderstorms throughout various parts of the United Kingdom towards the end of this week.

Temperature records could be broken later this week as the 2018 heatwave continues.

On Thursday the EuroTunnel Le Shuttle operation warned passengers heading for the Continent at its Folkestone terminal to expect four-hour delays to booked times, blaming restricted shuttle capacity.

The July record for the highest overnight minimum temperature is 23.3C - and the Met Office says that could be surpassed in south-east England on Thursday.

Male members of Marylebone Cricket Club (MCC) are normally expected to wear jackets when arriving at the ground and while in the Pavilion area.

The highest temperature recorded so far this year is 33.3degC at Santon Downham on July 23.

When was Sheffield's hottest ever day?

The most recent heatwave prior to this was in July 2015 when temperatures peaked at 36.7C at Heathrow on July 1, a temperature that is now the July all-time maximum record.

The current record stands at 38.5C which was recorded at Faversham in Kent on August 10 2003.

Despite temperatures set to reach a sizzling 36C, the Met Office has warned about thunder, lightning and torrential rain on Friday.

Friday could be the UK's hottest ever July day, with a high of 36C (96.8F) forecast for the south east - before thunderstorms provide slight relief from the scorching heatwave.

It forecast a 20-30 percent chance of Britain seeing an all-time highest temperature this week and a 70 percent chance of a record high for July.

"Large hail and strong, gusty winds will be additional hazards".

But are people heeding the advice and sheltering in the shade?

It prompted a number of health warnings. The Heat Health Watch Service is created to help healthcare professionals manage through periods of extreme temperature.

But those attending Middlesex's Vitality Blast match against Hampshire on Thursday were told: "Due to the abnormally warm temperatures, MCC has made a decision to dispense with requirement for gentlemen to wear jackets in the Pavilion and arrive wearing one".

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