UK weather: Fresh weather warning issued with 24 hours of thundery downpours to strike Britain

Outbreaks of rain already affecting southwest England will move northwards across Wales throughout Monday.

Around 15 to 20mm rain could fall in less than an hour, while some areas could see up to 40mm in two hours.

The wet weather could be accompanied by lightning throughout the day.

Heavy showers are expected to continue developing during Tuesday morning, before becoming more widespread and slow-moving across the east.

Met Office forecasters say Monday's warning - which covers southern and central England and stretches up to the eastern coast - remains in place from 3pm on Monday until 9am on Tuesday.

A second rain warning is in place from 8am to 8pm and covers eastern parts of northern, central Scotland and Newcastle.

LATEST DEVELOPMENTS:

• Met Office issues another yellow thunderstorm warning as southwest England at risk of flooding
• UK weather: Relentless bouts of gusty rain to bash Britain as summer still weeks away
• US weather: Storms batter swathes of America while other areas of the country fry under dome of FIRE

There is a chance that some properties could be affected by flooding or see power cuts.

Fast flowing or deep floodwater may also cause a danger to life.

A Met Office spokesperson said: "Outbreaks of rain, heavy at times with a risk of thunder, are expected to develop later on Monday afternoon then move northwards through the evening and overnight.

"15 to 20 mm rain may fall in less than an hour, with a few places seeing up to 40 mm in 2 hours but perhaps more widely within a longer period overnight.

"Where this occurs, there is the chance of some flooding and disruption."

The band of heavy rain is moving north across the South West while moving northwards during the evening and overnight.

Forecasters warn that the "heavy showers" could cause disruption.

Flooding will likely be "localised", according to the Met Office.