Maps show where rain will hit UK as parts of country set to receive half a month’s rainfall in 24 hours

Parts of the country could see half a month’s rainfall in the next 24 hours, with more yellow weather warnings coming into force on Monday.

Lightning, hail and gusty winds are also forecast, with the potential for flooding due to heavy rain.

Yellow weather warnings for rain and thunderstorms are in place for large swathes of the country on Sunday evening, with more coming into force on Monday.

Much of Scotland, northern England, Wales and the south-west of England remain under yellow weather warnings until 10pm on Sunday, where localised flooding remains possible.

A 24-hour weather warning, from 6pm on Sunday until 6pm on Monday, is in place for eastern parts of Northern Ireland, where heavy rain is expected to cause some disruption and the possibility of flooding.

Met Office forecaster Simon Partridge said: “It looks like Northern Ireland is the place where we could see the most rainfall and certainly the most impactful rainfall. They could see 50 to 75mm of rain within 12 to 18 hours.”

The country records an average of 89mm of rain in July, meaning more than half a month’s rainfall could hit Northern Ireland in less than a day.

Parts of England and Scotland may also see 20-40mm of rain in just two hours on Monday, the Met Office said, and warned of possible flooding.

From 3am until 9pm on Monday, the south and east of England are covered by a yellow thunderstorm warning.

By 11am the same warning will be in place for the Midlands, northern England and Scotland.

More than 10 flood alerts remain active in Scotland and where there is flooding or lightning the Met Office has warned of a chance of delays and some cancellations to train and bus services.

There is also a small chance of power cuts and fast-flowing or deep floodwater causing danger to life.

“Certainly a significant amount rainfall in a couple of hours, which will bring some local issues,” Partridge said. “You will see quite a lot of water on the roads and difficult driving conditions.

“Hopefully nothing more significant than that, it certainly won’t be an issue for any of the rivers because they are quite low.”

The heavy, thundery showers are due to low pressure and humid, moist air across the country. But some places will stay dry – even in the warning areas – the Met Office said.

“There is a good chance of seeing some lightning and some hail, with some gusty winds as well,” Partridge added.

He said Sunday night would be less “muggy” across the southern half of the UK.

The rest of the week is set to be changeable, with showers still likely on Tuesday and heavy, thundery showers possible in the south-east of England on Wednesday.

Temperatures this week will hover around average for the time of year, the Met Office said.