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Weather warnings

  • Sun 21 Jan
  • Mon 22 Jan
  • Tue 23 Jan
  • Wed 24 Jan
  • Thu 25 Jan
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Warning details for UK

Yellow warning
Snow between and Show detail

Description

Some snow will fall on Sunday morning across parts of southeast Wales, southwest and central southern England. Some roads and railways are likely to be affected with longer journey times by road, bus and train services.

Regions and local authorities affected:

  • East Midlands
  • London & South East England
  • South West England
  • Wales
  • West Midlands
East Midlands
  • Northamptonshire
London & South East England
  • Hampshire
  • Oxfordshire
  • West Berkshire
  • Buckinghamshire
  • Reading
  • Wokingham
South West England
  • Bath and North East Somerset
  • Bristol
  • Gloucestershire
  • Somerset
  • South Gloucestershire
  • Swindon
  • Wiltshire
Wales
  • Monmouthshire
  • Newport
  • Torfaen
  • Blaenau Gwent
  • Caerphilly
  • Merthyr Tydfil
  • Powys
  • Rhondda Cynon Taf
West Midlands
  • Herefordshire
  • Worcestershire
  • Warwickshire
  • Shropshire

Chief Forecaster's assessment

Some snow will fall across parts of southeast Wales, southwest and central southern England on Sunday morning. Whilst many areas will see rain or sleet with no snow falling or lying some parts will see small accumulations. Up to 2 cm is possible on low ground with 5 cm possible above approximately 150 m such as the Cotswolds and North Wessex Downs.

Warning impact matrix

Very
likely
✓
to
Unlikely
Very low
impact
to High
impact

Impact matrix guide

Yellow warning
Rain between and Show detail

Description

Spells of heavy rain are likely on Sunday, which combined with thawing of lying snow, may lead to localised surface water flooding, especially in northern and western counties. Spray and localised flooding on roads probably making journey times longer Bus and train services may be affected with journey times taking longer.

Regions and local authorities affected:

  • Northern Ireland
Northern Ireland
  • County Antrim
  • County Fermanagh
  • County Londonderry
  • County Tyrone
  • County Armagh
  • County Down

Chief Forecaster's assessment

An active weather system will introduce milder air from the west across Northern Ireland. 10-20 mm of rain is likely quite widely with locally 25 mm possible. This is likely to assist thawing of lying snow, increasing the risk of impacts from localised surface water flooding. This is most likely in northern and western counties where there is most snow lying.

Warning impact matrix

Very
likely
✓
to
Unlikely
Very low
impact
to High
impact

Impact matrix guide

Yellow warning
Snow & ice between and Show detail

Description

An area of snow is likely to move eastwards across many central and northern parts of the UK on Sunday. The snow is more likely to affect higher routes with lower levels only affected more locally. In addition, rain may fall onto frozen surfaces for a time, particularly across Scotland, following a very cold night. Some roads and railways likely to be affected, with longer journey times by road, bus and train services. Some injuries from slips and falls on icy surfaces. Probably some icy patches on some untreated roads, pavements and cycle paths. The snow is expected to become confined to northeast Scotland later in the day as it progressively turns to rain from the southwest. This warning area has been extended northwards to cover the northwest Highlands, parts of the Western Isles and southwards to cover more of Hertfordshire, Essex and Suffolk.

Regions and local authorities affected:

  • Central, Tayside & Fife
  • East Midlands
  • East of England
  • Grampian
  • Highlands & Eilean Siar
  • London & South East England
  • North East England
  • North West England
  • SW Scotland, Lothian Borders
  • South West England
  • Strathclyde
  • Wales
  • West Midlands
  • Yorkshire & Humber
Central, Tayside & Fife
  • Angus
  • Clackmannanshire
  • Falkirk
  • Fife
  • Perth and Kinross
  • Stirling
East Midlands
  • Derby
  • Derbyshire
  • Leicester
  • Leicestershire
  • Lincolnshire
  • Northamptonshire
  • Nottingham
  • Nottinghamshire
  • Rutland
East of England
  • Bedford
  • Cambridgeshire
  • Central Bedfordshire
  • Essex
  • Hertfordshire
  • Norfolk
  • Peterborough
  • Suffolk
  • Luton
Grampian
  • Aberdeenshire
  • Moray
Highlands & Eilean Siar
  • Highland
  • Na h-Eileanan Siar
London & South East England
  • Buckinghamshire
  • Milton Keynes
  • Oxfordshire
North East England
  • Darlington
  • Durham
  • Middlesbrough
  • Northumberland
  • Redcar and Cleveland
  • Stockton-on-Tees
North West England
  • Blackburn with Darwen
  • Cheshire East
  • Cheshire West and Chester
  • Cumbria
  • Greater Manchester
  • Lancashire
SW Scotland, Lothian Borders
  • Dumfries and Galloway
  • Edinburgh
  • Midlothian Council
  • Scottish Borders
  • West Lothian
South West England
  • Gloucestershire
Strathclyde
  • Argyll and Bute
  • East Ayrshire
  • East Dunbartonshire
  • Glasgow
  • North Lanarkshire
  • South Ayrshire
  • South Lanarkshire
  • West Dunbartonshire
Wales
  • Conwy
  • Denbighshire
  • Flintshire
  • Gwynedd
  • Powys
  • Wrexham
West Midlands
  • Herefordshire
  • 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

Chief Forecaster's assessment

Amounts of fresh snow will vary considerably across the warning area. Most of the snow is expected on higher ground with 3-6 cm likely above around 200 m and perhaps 10-15 cm locally on ground above 300 m over Scotland. At lower levels 1-3 cm is possible locally, but with many spots escaping altogether.

Warning impact matrix

Very
likely
✓
to
Unlikely
Very low
impact
to High
impact

Impact matrix guide

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