While Friday will be a predominantly warm and fine day across the country, this will change for parts of the nation on Saturday and Sunday as high pressure is replaced by a low pressure system. On top of this, the precarious Whaley Bridge dam is on the brink of collapse as the Environment Agency issued a “severe flood warning” – and more showers could be on their way to the area today. BBC meteorologist Tomasz Schafernaker explained: “The weather’s looking mostly good across the UK on Friday.
“There are some showers in the forecast and it is possible that we could get the odd downfall in the vicinity of the reservoir in Derbyshire where the Environment Agency still has a severe flood warning in force.
“At the moment, we’re in-between weather systems.
“There’s cloud to the east, west and south.
“An Atlantic weather front will approach us come Saturday but before that the weather’s relatively quiet.
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“The further east and south you are the better it’ll be.
“On Saturday, low pressure is approaching western parts of the UK.
“That does mean increasing amounts of cloud early on Saturday in the far west of the UK.
“As this weather front approaches it will bring a few spots of rain to the extreme west of the UK and across Northern Ireland.
“In eastern and southern areas the weather’s looking bright if no sunny, with temperatures of up to 25C in London.
“On Sunday, that weather front will have moved a little bit closer, certainly affecting Scotland.
“But also we’re anticipating showers in northern areas – possibly heavy and thundery.
“But in the south it should be quite warm, if not very warm indeed, with temperatures in the high 20s.”
Meanwhile, A Royal Air Force Chinook has been drafted into a Derbyshire town in efforts to stop a reservoir collapsing after it was “badly” damaged during heavy rain.
Hundreds of Whaley Bridge residents have spent the night away from their homes due to “an unprecedented, fast-moving, emergency situation” caused by heavy downpours.
Toddbrook Reservoir – which contains around 1.3 million tonnes of water – has seen “extensive” damage during the flooding and images appear to show a huge hole in the dam wall.
The helicopter was sent from RAF Odiham in Hampshire to assist at the Reservoir, a Ministry of Defence spokesman told PA.
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He added: “It will drop one-ton bags of aggregate – a mixture of sand, gravel and stone – into Todd Brook.
“This is intended to stem the flow of water into the reservoir.”
Videos shared by Shirebrook Fire Station showed the Chinook laden with the aggregate as it flew above the area and hovered above the dam wall.
Derbyshire Police said late on Thursday that 400 tonnes of aggregate would be brought by the RAF as part of a multi-agency task force.
Speaking on Thursday evening, Deputy Chief Constable Rachel Swann, chairwoman of the Local Resilience Forum, said: “At this time the future of the dam wall remains in the balance and I would remind people of the very real danger posed to them should the wall collapse.”
Firefighters deployed from across the country used at least 10 high volume pumps to reduce water to a safe level before work will begin to repair the dam wall.
Many people were told to leave their homes and directed to an evacuation point at a school in Chapel-en-le-Frith.
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