A yellow weather warning has been issued for parts of the UK with thunderstorms forecast for Monday (August 12).

The UK is enjoying a weekend of "strong summer sunshine” with temperatures in some parts expected to reach into the high twenties (29C forecast in London for Sunday, August 11).

This hot weather is expected to continue into Monday across England and Wales with top temperatures set to reach 33C to 34C in what could be the warmest day of the year so far.

But not everywhere in the UK is set to enjoy sunshine and warm weather on Monday with some areas to be hit with thunderstorms instead.

The Met Office has issued a yellow weather warning for thunderstorms which will be in place across northern areas of the UK including Cumbria, Greater Manchester and Scotland on Monday (August 12) from 2am until 1pm.

The thunderstorms associated with the yellow weather warning are set to cause flooding, travel disruptions and power outages.

What to expect from the yellow weather warning

The Met Office said the yellow weather warning was issued for parts of the UK due to thunderstorms which may result in "disruptions" and damage to infrastructure on Monday.

The thunderstorms associated with the yellow weather warning are also set to cause:

  • Difficult driving conditions and road closures due to spray and sudden flooding
  • Communities may become temporarily cut off by flooded roads
  • Delays and cancellations to train and bus services where flooding and/or lightning strikes occur
  • Power cuts and disruptions to other services
  • Homes and businesses could be flooded quickly
  • Damage to some buildings from floodwater, lightning strikes, hail or strong winds

A Met Office spokesperson added: "Thunderstorms are expected to develop over western parts of the UK and move northeast during the second half of Sunday night becoming organised into Monday morning.

"Although not all parts of the warning area are expected to see them, an area of increasingly organised thunderstorms is likely to produce a combination of frequent lightning, heavy rain, hail and short periods of strong winds.

"Some torrential downpours are likely, with 20-40 mm in places, and a potential for 40-60 mm of rain to fall in 1-2 hours very locally, with hail up to 2 cm in diameter.

"Thunderstorms are expected clear towards the northeast by Monday afternoon."

What different Met Office weather warnings mean

Everywhere set to be affected by yellow weather warning

The parts of the UK set to be impacted by the yellow weather warning issued by the Met Office are:

Central, Tayside & Fife

  • Angus
  • Clackmannanshire
  • Dundee
  • Falkirk
  • Fife
  • Perth and Kinross
  • Stirling

Grampian

  • Aberdeen
  • Aberdeenshire
  • Moray

Highlands & Eilean Siar

  • Na h-Eileanan Siar
  • Highland

North East England

  • Darlington
  • Durham
  • Gateshead
  • Hartlepool
  • Middlesbrough
  • Newcastle upon Tyne
  • North Tyneside
  • Northumberland
  • Redcar and Cleveland
  • South Tyneside
  • Stockton-on-Tees
  • Sunderland

North West England

  • Blackburn with Darwen
  • Blackpool
  • Cumbria
  • Greater Manchester
  • Lancashire
  • Merseyside

Orkney & Shetland

  • Orkney Islands

SW Scotland, Lothian Borders

  • Dumfries and Galloway
  • East Lothian
  • Edinburgh
  • Midlothian Council
  • Scottish Borders
  • West Lothian

Strathclyde

  • Argyll and Bute
  • East Ayrshire
  • East Dunbartonshire
  • East Renfrewshire
  • Glasgow
  • Inverclyde
  • North Ayrshire
  • North Lanarkshire
  • Renfrewshire
  • South Ayrshire
  • South Lanarkshire
  • West Dunbartonshire

Yorkshire & Humber

  • East Riding of Yorkshire
  • North Yorkshire
  • West Yorkshire
  • York

See exactly where the yellow weather warnings will be in place across the UK on Monday (August 12).See exactly where the yellow weather warnings will be in place across the UK on Monday (August 12). (Image: Met Office)

How to prepare for the yellow weather warning and thunderstorms

The Met Office has issued advice on how to prepare for the yellow weather warning and the risks the thunderstorms pose.

A Met Office spokesperson said: "Consider if your location is at risk of flash flooding. If so, consider preparing a flood plan and an emergency flood kit. Prepare to protect your property and people from injury.

"Before gusty winds arrive, check to ensure moveable objects or temporary structures are well secured. Items include; bins, garden furniture, trampolines, tents, gazebos, sheds, and fences.

"Give yourself the best chance of avoiding delays by checking road conditions if driving, or bus and train timetables, amending your travel plans if necessary.

"People cope better with power cuts when they have prepared for them in advance. It’s easy to do; consider gathering torches and batteries, a mobile phone power pack and other essential items.

"If you find yourself outside and hear thunder, protect yourself by finding a safe enclosed shelter (such as a car). Do not shelter under or near trees, or other structures which may be struck by lightning.

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"If you are on an elevated area move to lower ground.

"Be prepared for weather warnings to change quickly: when a weather warning is issued, the Met Office recommends staying up to date with the weather forecast in your area."

The yellow weather warning will be in place across parts of the UK from 2am to 1pm on Monday, August 12.