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What do the warning colours mean?

Red warning

  • Dangerous weather is expected and, if you have not done so already, you should take action now to keep yourself and others safe from the impact of the severe weather.
  • It is very likely that there will be a risk to life, with substantial disruption to travel, energy supplies and possibly widespread damage to property and infrastructure.

Amber warning

  • There is an increased likelihood of impacts from severe weather, which could potentially disrupt your plans.
  • This means there is the possibility of travel delays, road and rail closures, power cuts and the potential risk to life and property.

Yellow warning

  • Yellow warnings can be issued for a range of weather situations.
  • It is important to read the content of yellow warnings to determine which weather situation is being covered by the warning.

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UK weather warnings

Yellow warning
Rain
00:15
Tomorrow
UTC+1
06:00
Thu 23

Heavy rain may cause some flooding and disruption to travel.

What to Expect

  • Some communities may be cut off by flooded roads
  • Spray and flooding could lead to difficult driving conditions and some road closures
  • Homes and businesses could be flooded, causing damage to some buildings
  • Fast flowing or deep floodwater is possible, causing a danger to life
  • Delays or cancellations to train and bus services are possible

What should I do?

Further Details

An area of rain is expected to develop across eastern and central England and then move northwestwards to affect northern England and north Wales during Wednesday afternoon. The area of rain could then become slow moving, heavy and persistent, especially over north facing hills, before clearing during Thursday morning. There is a lot of uncertainty over exactly where the heaviest rain will occur and this warning is likely to be updated. Many places will see 30-40 mm of rain, while a few areas may receive 60-80 mm. There is also a small chance that a few upland areas could see much higher totals, in the order of 100-150 mm. What should I do? Check if your property could be at risk of flooding. If so, consider preparing a flood plan and an emergency flood kit. 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. 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.


Warning impact matrix

This warning has a low likelihood and a medium impact.

Very
likely
✓ ✓ ✓ ✓
✓ ✓ ✓ ✓
✓ ✓ ✓ ✓
✓ ✓ ✓ ✓
to
Unlikely
Very low
impact
to High
impact

Regions and local authorities affected:

East Midlands

  • Derby
  • Derbyshire
  • Leicester
  • Leicestershire
  • Lincolnshire
  • Northamptonshire
  • Nottingham
  • Nottinghamshire
  • Rutland

East of England

  • Bedford
  • Cambridgeshire
  • Central Bedfordshire
  • Norfolk
  • Peterborough

London & South East England

  • Milton Keynes

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
  • Cheshire East
  • Cheshire West and Chester
  • Cumbria
  • Greater Manchester
  • Halton
  • Lancashire
  • Merseyside
  • Warrington

Wales

  • Ceredigion
  • Conwy
  • Denbighshire
  • Flintshire
  • Gwynedd
  • Isle of Anglesey
  • Powys
  • Wrexham

West Midlands

  • Shropshire
  • Staffordshire
  • Stoke-on-Trent
  • Telford and Wrekin
  • Warwickshire
  • West Midlands Conurbation
  • Worcestershire

Yorkshire & Humber

  • East Riding of Yorkshire
  • Kingston upon Hull
  • North East Lincolnshire
  • North Lincolnshire
  • North Yorkshire
  • South Yorkshire
  • West Yorkshire
  • York
Yellow warning
Thunderstorm
08:00
Today
UTC+1
21:00
Today

While some places will miss them, heavy showers and thunderstorms are likely again on Tuesday, potentially bringing disruption and flooding.

What to Expect

  • Spray and sudden flooding could lead to difficult driving conditions and some road closures
  • Where flooding or lightning strikes occur, there is a chance of delays and some cancellations to train and bus services
  • There is a slight chance that power cuts could occur and other services to some homes and businesses could be lost
  • There is a small chance that homes and businesses could be flooded quickly, with damage to some buildings from floodwater, lightning strikes, hail or strong winds
  • There is a small chance of fast flowing or deep floodwater

What should I do?

Further Details

Reason for update

Some adjustments to the 'further details' section.

Slow-moving heavy showers are expected to develop, especially across central and western parts of Northern Ireland, through the late morning and into the afternoon. In some areas 20-30 mm could fall in just an hour or two, with the wettest spots perhaps seeing as much as 50-60 mm. Hail and lightning may be secondary hazards in places. Showers and storms should ease into the evening. What should I do? 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. 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.


Warning impact matrix

This warning has a very low likelihood and a medium impact.

Very
likely
✓ ✓ ✓ ✓
✓ ✓ ✓ ✓
✓ ✓ ✓ ✓
✓ ✓ ✓ ✓
to
Unlikely
Very low
impact
to High
impact

Regions and local authorities affected:

Northern Ireland

  • County Antrim
  • County Armagh
  • County Down
  • County Fermanagh
  • County Londonderry
  • County Tyrone
Yellow warning
Thunderstorm
12:00
Today
UTC+1
23:59
Today

Heavy rain and thunderstorms may lead to some disruption.

What to Expect

  • Spray and sudden flooding could lead to difficult driving conditions and some road closures
  • Where flooding or lightning strikes occur, there is a chance of delays and some cancellations to train and bus services
  • There is a slight chance that power cuts could occur and other services to some homes and businesses could be lost
  • There is a small chance that homes and businesses could be flooded quickly, with damage to some buildings from floodwater, lightning strikes, hail or strong winds

What should I do?

Further Details

Whilst some places may remain mostly dry, areas of heavy rain and some thunderstorms are expected to develop from around mid-morning. In the south of this warning area, the focus is likely to be slow-moving heavy showers and thunderstorms, perhaps with hail and lightning, which should gradually ease away later on Tuesday evening. Meanwhile, further north in the warning area, early showers are likely to merge into more general rain, this heavy and thundery at times, and will persist onwards into Wednesday (which is covered by a separate warning). Across the warning area, 20-30mm in 1 hour or less is possible (but perhaps most likely to the south of London), with a few places perhaps receiving 40-50mm in 2-3 hours. What should I do? 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. 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.


Warning impact matrix

This warning has a very low likelihood and a medium impact.

Very
likely
✓ ✓ ✓ ✓
✓ ✓ ✓ ✓
✓ ✓ ✓ ✓
✓ ✓ ✓ ✓
to
Unlikely
Very low
impact
to High
impact

Regions and local authorities affected:

East of England

  • Bedford
  • Cambridgeshire
  • Central Bedfordshire
  • Essex
  • Hertfordshire
  • Luton
  • Norfolk
  • Southend-on-Sea
  • Suffolk
  • Thurrock

London & South East England

  • Bracknell Forest
  • Brighton and Hove
  • Buckinghamshire
  • East Sussex
  • Greater London
  • Hampshire
  • Kent
  • Medway
  • Milton Keynes
  • Oxfordshire
  • Portsmouth
  • Reading
  • Slough
  • Southampton
  • Surrey
  • West Berkshire
  • West Sussex
  • Windsor and Maidenhead
  • Wokingham
Yellow warning
Thunderstorm
12:00
Today
UTC+1
21:00
Today

Thunderstorms are likely to develop in places on Tuesday afternoon leading to some travel disruption and surface water flooding.

What to Expect

  • Spray and sudden flooding could lead to difficult driving conditions and some road closures
  • Where flooding or lightning strikes occur, there is a chance of delays and some cancellations to train and bus services
  • There is a slight chance that power cuts could occur and other services to some homes and businesses could be lost
  • There is a small chance that homes and businesses could be flooded quickly, with damage to some buildings from floodwater, lightning strikes, hail or strong winds

What should I do?

Further Details

Reason for update

Warning updated to extend into Wales and other parts of west and southwest England.

Heavy showers and thunderstorms are expected to develop during the afternoon across parts of southwest England, Wales and the West Midlands before slowly dying out during the evening. Many places will miss the worst, but where they do develop, some slow-moving and intense downpours are possible, giving accumulations of 20-30 mm in around 1 hour, and a lower likelihood of 40-50 mm in 2-3 hours in a few locations. Frequent lightning strikes and hail are also possible. What should I do? 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. 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.


Warning impact matrix

This warning has a very low likelihood and a medium impact.

Very
likely
✓ ✓ ✓ ✓
✓ ✓ ✓ ✓
✓ ✓ ✓ ✓
✓ ✓ ✓ ✓
to
Unlikely
Very low
impact
to High
impact

Regions and local authorities affected:

South West England

  • Bath and North East Somerset
  • Bristol
  • Cornwall
  • Devon
  • Dorset
  • Gloucestershire
  • North Somerset
  • Plymouth
  • Somerset
  • South Gloucestershire
  • Torbay
  • Wiltshire

Wales

  • Blaenau Gwent
  • Bridgend
  • Caerphilly
  • Cardiff
  • Carmarthenshire
  • Ceredigion
  • Conwy
  • Denbighshire
  • Gwynedd
  • Merthyr Tydfil
  • Monmouthshire
  • Neath Port Talbot
  • Newport
  • Pembrokeshire
  • Powys
  • Rhondda Cynon Taf
  • Swansea
  • Torfaen
  • Vale of Glamorgan
  • Wrexham

West Midlands

  • Herefordshire
  • Shropshire
Yellow warning
Rain
12:00
Tomorrow
UTC+1
18:00
Thu 23

Heavy rain may produce some flooding and transport disruption.

What to Expect

  • There is a slight chance of power cuts and loss of other services to some homes and businesses
  • There is a small chance that homes and businesses could be flooded, causing damage to some buildings
  • Where flooding occurs, there is a slight chance of delays or cancellations to train and bus services
  • Spray and flooding could lead to difficult driving conditions and some road closures
  • There is a small chance that some communities will become cut off by flooded roads
  • There is a small chance of fast flowing or deep floodwater causing danger to life

What should I do?

Further Details

An area of heavy rain is expected to move northwest across Scotland from Wednesday afternoon, with rain most persistent across northern and eastern hills. Rain likely to turn more showery through Thursday in central and southern areas. There remains some uncertainty on the duration and placement of the heaviest outbreaks, but there is a small chance that it will become slow-moving over Moray and northern Aberdeenshire, and to a lesser extent Lothian and Borders. Should this happen then some places could see 60-80 mm of rain falling in 12 hours, with a very low chance of 100 mm. What should I do? Check if your property could be at risk of flooding. If so, consider preparing a flood plan and an emergency flood kit 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. 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


Warning impact matrix

This warning has a very low likelihood and a medium impact.

Very
likely
✓ ✓ ✓ ✓
✓ ✓ ✓ ✓
✓ ✓ ✓ ✓
✓ ✓ ✓ ✓
to
Unlikely
Very low
impact
to High
impact

Regions and local authorities affected:

Central, Tayside & Fife

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

Grampian

  • Aberdeen
  • Aberdeenshire
  • Moray

Highlands & Eilean Siar

  • Highland

SW Scotland, Lothian Borders

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

Strathclyde

  • Argyll and Bute
  • East Ayrshire
  • East Renfrewshire
  • Glasgow
  • North Ayrshire
  • North Lanarkshire
  • South Ayrshire
  • South Lanarkshire
Warnings are in force for:

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