Monday could be hottest day of the year so far, but more flooding is on the way
27 May 2018, 21:36
Bank Holiday Monday could be the hottest day of the year so far, potentially surpassing 29C (84.2F) in the South East.
However, it will be accompanied by more rain, thunder and lightning, with further flood warnings issued for parts of the UK for the Bank Holiday.
It comes after more than a month's worth of rain fell in one hour in parts of the UK on Sunday.
Heavy downpours caused flash flooding that left a major route into Birmingham impassable because of water up to 5ft deep.
The Met Office said a site at Winterbourne, in Edgbaston, recorded 58mm of rainfall in just one hour on Sunday afternoon, and 81mm in a 12-hour period.
The monthly average for the West Midlands region in May is 55mm, meteorologist Craig Snell said.
Families are set to face treacherous conditions as they return home from getaways after the long weekend, as forecasters predict heavy rain in parts of England and Wales.
Thunderstorms have been predicted for the south for the rest of the day, but sunny spells could develop in parts of the South West, as well as the north of England and Scotland.
The Environment Agency has issued 28 red "immediate action required" flood warnings across England, with all of them in place for parts of the Midlands.
There are 47 orange "be prepared" warnings in place across the west, south and central England.
No flood warnings were in place for Scotland or Wales on Sunday night, while four were in place in Northern Ireland.
Despite the wet weather, Mr Snell said temperatures could hit highs of 28C (82.4F) or 29C (84.2F) in the South East, potentially surpassing the 2018 record of 29.1C (84.4F) on 19 April in St James' Park, central London.
The Met Office's yellow warning was downgraded from the "amber" level that was in place between 4.50pm and 9pm on Sunday, which warned of thunderstorms across parts of the Midlands and into north Wales.
Sky News weather presenter Jo Edwards has said it will be a "humid muggy night" in the south on Monday, with temperatures no lower than 14C or 15C in parts.
Edwards said it will "cooler and fresher" in the north.
It comes after the UK was struck by lightning more than 60,000 times as the "mother of all thunderstorms" rolled across southern England on Saturday night and Sunday morning.
The London Fire Brigade said it had received more than 500 weather-related calls as the warm and humid bank holiday weather broke down into an "utterly intense" storm.
Alexander Walters, a journalism student in Birmingham, posted a video on Twitter of three people pushing a car after a road was flooded in Birmingham.
Scores of flights were delayed at Stansted Airport on Sunday after lightning hit an aircraft fuelling system, leaving planes unable to refuel.
More than 200 planes were delayed at the London airport, and another 31 departures and 18 arrivals were also cancelled on Sunday morning.