Flood Warning & Alert Types

 
ImageLevelNameMeaning
1Severe Flood WarningSevere Flooding, Danger to Life.
2Flood WarningFlooding is Expected, Immediate Action Required.
3Flood AlertFlooding is Possible, Be Prepared.
4Warning no Longer in ForceThe warning is no longer in force
*Sources updated daily from the Environment Agency's API: https://environment.data.gov.uk/flood-monitoring/id/floods.

Flood level warnings are categorised in severity by a numbering system as shown in the table above. The highest type of flood alert is 1, whereas the lowest type of flood notice is 4.

Flood Alerts, Warnings & Notices - 13 Jun, 2025

3


Croydon, Greater London, Lambeth, Merton, Sutton, Wandsworth River Wandle area in the London Boroughs of Wandsworth, Merton, Lambeth, Croydon and Sutton

3


Bexley, Bromley, Greater London, Kent Shuttle and Cray

3


Solihull, Warwickshire River Blythe in Warwickshire

3


Bromley, Croydon, Greater London, Greenwich, Lewisham Ravensbourne area in the London Boroughs of Lewisham, Bromley, Greenwich and Croydon

3


Greater London, Kingston upon Thames, Merton, Richmond upon Thames, Surrey, Sutton, Wandsworth Beverley Brook area in Merton, Sutton, Kingston upon Thames, Richmond upon Thames and Wandsworth

3


Greater London, Kingston upon Thames, Surrey River Hogsmill area from Ewell to Kingston upon Thames

3


Dudley, Sandwell, Staffordshire, Wolverhampton, Worcestershire River Stour and Smestow Brook in the Black Country and South Staffordshire

3


Surrey River Rythe from Oxshott to Thames Ditton

3


Surrey, West Sussex Upper River Mole, Ifield Brook, Gatwick Stream and Burstow Stream

3


Derbyshire Tributaries in North Derbyshire

3


Surrey River Mole and its tributaries from Kinnersley Manor to South Hersham

3


Kent Rivers on the Isle of Sheppey

3


Nottinghamshire River Maun in Nottinghamshire

3


Nottingham, Nottinghamshire River Leen, Day Brook and Tottle Brook in Nottinghamshire

3


Cornwall, Devon Upper River Tamar

3


Devon, Torbay River Teign area

3


Surrey Redhill Brook at Redhill and Salfords Stream at Salfords

3


Devon, Plymouth River Plym and Tory Brook

3


Cornwall West Cornwall Rivers

3


Devon, Plymouth River Yealm

3


Devon South Devon Rivers

3


Devon North Dartmoor Rivers

3


Birmingham River Rea

3


Devon, Torbay River Dart area

3


Birmingham, Dudley, Sandwell, Solihull, Walsall, Warwickshire, Wolverhampton Upper Tame

3


Devon Lower Torridge area

3


Derbyshire Bottle Brook in Derbyshire

3


Derby, Derbyshire, Leicestershire, Staffordshire Tributaries in South Derbyshire

3


Birmingham, Sandwell Upper Tame at Sandwell Valley

3


Bexley, Greater London, Kent River Darent from Westerham to Dartford

3


Barnet, Enfield, Essex, Greater London, Haringey, Hertfordshire, Redbridge, Waltham Forest Lower Lee tributaries

3


Essex, Southend-on-Sea The River Roach, Prittle Brook and Eastwood Brook

3


Essex, Greater London, Havering River Ingrebourne at Harold Park and Hornchurch

3


Birmingham, Solihull, Warwickshire, Worcestershire River Cole

3


Essex, Hertfordshire River Stort and Stansted Brook catchment

3


Leicester, Leicestershire Tributaries in Leicester City

3


Nottingham, Nottinghamshire River Trent Tributaries in Nottinghamshire

3


Leicestershire, Nottinghamshire Loughborough urban watercourses and local tributaries to the River Soar

3


Derbyshire, Nottinghamshire River Erewash Tributaries in Derbyshire and Nottinghamshire

2


Devon River Avon from Didworthy to Aveton Gifford

3


Greater London, Harrow, Hillingdon River Pinn and Woodridings Stream

3


Barnet, Brent, Greater London, Harrow Silk Stream and the Deans, Edgware, Dollis, Mutton and Wealdstone Brooks

3


Barking and Dagenham, Essex, Greater London, Havering Rivers Beam and Rom

3


Ealing, Greater London, Harrow, Hillingdon Yeading Brooks in London Boroughs of Harrow and Hillingdon

3


Essex Canons Brook from Harlow to Parndon Mead

3


East Sussex Polegate and Wannock

3


East Sussex Hollington Stream

2


Devon River Avon at South Brent, Avonwick and Aveton Gifford
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