| The Silk Stream and the Deans, Edgware, Dollis, Mutton, Wembley and Wealdstone Brooks and their tributaries | Silk Stream;
Dollis Brook;
Deans Brook;
Edgware Brook;
Mutton Brook;
Wealdstone Brook;
Wembley Brook | Alert |
| The Salmons Brook at Grange Park and Lower Edmonton including World's End | Salmons Brook | Warning |
| The River Brent in the London Borough of Brent including Tokyngton, Stonebridge and Alperton | River Brent | Warning |
| The River Brent from Hendon to Brentford including Brent Cross, Tokyngton, Alperton, Greenford and Hanwell | River Brent | Alert |
| River Thames at Thames Ditton Island including Boyle Farm Island | River Thames | Warning |
| River Thames at Thames Ditton Island including Boyle Farm Island | River Thames | Alert |
| River Wandle at Beddington Park including Hackbridge and Waddon, London Boroughs of Sutton and Croydon | River Wandle | Warning |
| River Wandle area in the London Boroughs of Wandsworth, Merton, Lambeth, Croydon and Sutton. Including the Norbury Brook from Thornton Heath to Tooting | River Wandle | Alert |
| River Thames from Shepperton to West and East Molesey including Hamm Court, Walton-on-Thames and Sunbury | River Thames | Alert |
| River Wandle at Wandsworth including King Georges Park and Earlsfield, London Boroughs of Wandsworth and Merton | River Wandle | Warning |
| River Wandle at Morden, including Morden Hall Park, London Borough of Merton | River Wandle | Warning |
| River Graveney at Tooting and Colliers Wood, London Boroughs of Wandsworth and Merton | River Wandle | Warning |
| The River Pinn at Ickenham | River Pinn | Warning |
| The River Pinn and Woodridings Stream at Pinner, Eastcote, Ruislip, Ickenham, Uxbridge and Yiewsley | River Pinn | Alert |
| The River Pinn at Uxbridge including Hillingdon | River Pinn | Warning |
| River Quaggy at Chinbrook, Mottingham and Eltham, London Boroughs of Bromley, Lewisham and Greenwich | River Quaggy | Warning |
| Ravensbourne area in the London Boroughs of Lewisham, Bromley, Greenwich and Croydon. Including the River Quaggy, Kyd Brook, Chaffinch Brook and Pool River | River Ravensbourne | Alert |
| Beck at Beckenham, London Borough of Bromley | Beck | Warning |
| The River Rom at Romford including Rush Green | Rom | Warning |
| The Yeading Brook at Hillingdon including Yeading | River Crane | Warning |
| The River Crane at Hillingdon, Southall, Cranford, Feltham and Twickenham | River Crane | Alert |
| Ravensbourne at Bromley Including Ravensbourne East Branch at Southborough, London Borough of Bromley | River Ravensbourne | Warning |
| Beverley Brook at Barnes, London Boroughs of Richmond upon Thames and Wandsworth | Beverley Brook | Warning |
| Beverley Brook area, including the Pyl Brook, in the London Boroughs of Merton, Sutton, Kingston upon Thames, Richmond upon Thames and Wandsworth | Beverley Brook, Pyl Brook, East Pyl Brook | Alert |
| River Thames from the River Brent to the River Crane including East Isleworth and Syon Park | River Thames | Warning |
| River Thames including areas in the boroughs of Kensington & Chelsea, Hammersmith & Fulham, Ealing and Hounslow | River Thames | Alert |
| River Thames including areas in the boroughs of Wandsworth and Richmond-upon-Thames | River Thames | Alert |
| The River Ingrebourne at Hornchurch including Upminster and Rainham | Ingrebourne | Warning |
| River Thames including areas in the boroughs of Tower Hamlets, the City of London, the City of Westminster and Kensington & Chelsea | River Thames | Alert |
| River Thames from Raven's Ait to Teddington Weir including, Raven's Ait, the Hogsmill River below the university Knights Park Campus, both Kingston Bridge's and Steven's Eyot | River Thames | Warning |
| River Thames from Hampton and Thames Ditton to Teddington including Hampton Wick and Kingston-upon-Thames | River Thames | Alert |
| River Thames from The Mardyke to Barking Creek including Rainham Marshes, South Hornchurch, Ford Motor Works, Creekmouth, the New England Estate and South Barking | River Thames | Warning |
| River Thames including areas in the boroughs of Havering, Barking and Dagenham, and Newham | River Thames | Alert |
| River Hogsmill area from Ewell to Kingston upon Thames, including the Surbiton Stream in Surbiton and the Green Lane Stream between Ewell and Epsom | Hogsmill | Alert |
| River Thames at Thames Ditton including Ditton Field and Ditton Reach | River Thames | Warning |
| River Thames from the Limehouse Basin to Blackfriar's Bridge including Shadwell, Wapping, St. Katherines Dock and Upper Thames Street | River Thames | Warning |
| River Thames at Teddington including Broom Road and Lower Teddington Road | River Thames | Warning |
| River Thames from Mortlake High Street East to Richmond Bridge including Mortlake, North Sheen, Kew, the Royal Botanic Gardens and Old Deer Park | River Thames | Warning |
| Pyl Brook at North Cheam including Kimpton Industrial Estate, London Boroughs of Merton and Sutton | Ply Brook | Warning |
| River Shuttle at Blackfen, Sidcup Golf Course, Lamorbey Park, Sidcup and Old Bexley to Hall Place | Shuttle | Warning |
| River Thames at East and West Molesey including Hurst Park, Buckingham Avenue and the Royal Mews area | River Thames | Warning |
| The River Pinn at Eastcote Village | River Pinn | Warning |
| The Turkey Brook at Enfield including Clay Hill | Turkey Brook | Warning |
| The Lower River Lee at Hackney and Walthamstow including Lea Bridge, Hackney Marsh and Hackney Wick | River Lee | Warning |
| Yeading Brook West at Ruislip Manor including North Harrow, Ruislip Gardens and North Hillingdon | Yeading Brook West | Warning |
| The Yeading Brooks East and West at Ruislip and Harrow | Yeading Brook West, Yeading Brook East | Alert |
| Pool River at Bell Green and New Beckenham, London Boroughs of Lewisham and Bromley | Pool River | Warning |
| River Thames from Putney Bridge to Mortlake High Street East including Barnes | River Thames | Warning |
| Beverley Brook at Worcester Park, including Motspur Park, London Boroughs of Kingston upon Thames and Sutton | Beverley Brook | Warning |
| River Thames at Kingston-upon-Thames town including, central Kingston, the area around Canbury Gardens and Albany Park Road | River Thames | Warning |
| River Thames at Trowlock Island including the Royal Canoe Club | River Thames | Alert |
| The Woodridings Stream at Pinner Green, Harrow | River Pinn | Warning |
| The Pymmes Brook at Upper Edmonton and Tottenham | Pymmes Brook | Warning |
| Beverley Brook at West Barnes, London Boroughs of Kingston upon Thames and Merton | Beverley Brook | Warning |
| The Silk Stream at Edgware and Colindale | Silk Stream | Warning |
| The River Pinn at Pinner, Harrow | River Pinn | Warning |
| River Thames at Beckton Sewage Works including East Ham | River Thames | Warning |
| Kyd Brook at Petts Wood, London Borough of Bromley | Kyd Brook | Warning |
| Beverley Brook at Raynes Park Including Beverley Way and Malden Golf Course, London Boroughs of Kingston upon Thames and Merton | Beverley Brook | Warning |
| River Thames including areas in the boroughs of Greenwich, Lewisham, Southwark, Lambeth and Wandsworth | River Thames | Alert |
| River Thames from the Hogarth Lane Roundabout to the River Brent including South Chiswick, Grove Park, Strand-on-the-Green and Brentford | River Thames | Warning |
| The River Crane at Southall including Hayes | River Crane | Warning |
| River Thames from Platts Eyot to Hampton Court Bridge, including Platts Eyot, area around Hampton Sailing Club, Garrick's Eyot, Taggs Island, Ash Island and Molesey Lock | River Thames | Warning |
| River Thames from Wandsworth Bridge to Putney Bridge including Wandsworth Centre | River Thames | Warning |
| The Edgware Brook at Stanmore including Little Stanmore | Edgware Brook | Warning |
| The Pymmes Brook at East Barnet including Cockfosters and New Southgate | Pymmes Brook | Warning |
| River Thames at Walton-on-Thames including Desborough Island, Walton Bridge and Elmbridge Leisure Centre | River Thames | Warning |
| The River Brent in the London Borough of Barnet including Brent Cross | River Brent | Warning |
| Ravensbourne from Bellingham to Catford, Including Beckingham Park, London Borough of Lewisham | River Ravensbourne | Warning |
| River Thames riverside from the Thames Barrier to Putney Bridge | River Thames | Alert |
| Chaffinch Brook and St James Stream at Elmers End and Upper Elmers End, including South Norwood Country Park, London Boroughs of Bromley and Croydon | Chaffinch Brook | Warning |
| River Hogsmill at Ewell Court, Ruxley and Old Malden, London Borough of Kingston upon Thames and Epsom and Ewell | Hogsmill | Warning |
| The River Beam at Dagenham including Rainham | Beam | Warning |
| The Yeading Brook East at South Ruislip | Yeading Brook East | Warning |
| The River Pinn at Ruislip | River Pinn | Warning |
| River Quaggy Flood Alleviation Scheme at Kidbrooke, Lee and Hither Green Including Sutcliffe Park, London Boroughs of Lewisham and Greenwich | River Quaggy | Warning |
| Norbury Brook at Thornton Heath and Streatham Vale, including Norbury and Norbury Park, London Boroughs of Croydon and Lambeth | River Wandle | Warning |
| The Wealdstone Brook at Kenton including Wealdstone and Wembley | Wealdstone Brook | Warning |
| River Wandle at Wimbledon including Colliers Wood, Merton Abbey, Connollys Mill, Summerstown and Wimbledon Stadium, London Borough of Merton | River Wandle | Warning |
| East Pyl Brook at Morden Park from the A24 to West Barnes, London Borough of Merton | Ply Brook | Warning |
| River Thames from Woolwich Arsenal to Deptford Creek including New Charlton, the Greenwich Peninsula, the Royal Naval College and Greenwich Town Centre | River Thames | Warning |
| The Dollis Brook from Barnet to Hendon including Whetstone and Finchley | Dollis Brook | Warning |
| The River Pinn at Yiewsley including Cowley Peachey | River Pinn | Warning |
| The River Crane at Cranford and Feltham including North Feltham | River Crane | Warning |
| River Thames at Hampton and Hampton Wick including Hampton Court, properties on the Barge Walk, Hampton Court Palace Golf Club and Hampton Court Road | River Thames | Warning |
| River Thames riverside from Putney Bridge to Teddington Weir | River Thames | Alert |
| Beverley Brook at Wimbledon Common and Richmond Park including Kingston Vale and Robin Hood Gate and Roehampton, London Boroughs of Kingston upon Thames and Merton | Beverley Brook | Warning |
| The Lower River Lee at Stratford including Mill Meads | River Lee | Warning |
| The Tidal River Crane at Twickenham | River Crane | Alert |
| River Hogsmill at Kingston, London Borough of Kingston upon Thames | Hogsmill | Warning |
| River Thames at Trowlock Island including the Royal Canoe Club | River Thames | Warning |
| Pyl Brook at West Barnes, London Borough of Merton | Ply Brook | Warning |
| The River Brent in the London Boroughs of Ealing and Hounslow including Greenford, and Hanwell | River Brent | Warning |
| The River Crane at Twickenham including Cole Park | River Crane | Warning |
| Ravensbourne at Deptford, London Boroughs of Lewisham and Greenwich | River Ravensbourne | Warning |
| The Tidal River Brent in Hounslow | River Brent | Alert |
| The Ching Brook in the London Borough of Waltham Forest, including Highams Park | Ching Brook | Warning |
| The Lower River Lee from West Ham to Canning Town | River Lee | Warning |
| The Mutton Brook at Hampstead Garden Suburb | Mutton Brook | Warning |
| Kyd Brook at Sundridge Park, Including Chiselhurst, London Borough of Bromley | Kyd Brook | Warning |
| The River Roding in Barking including East Ham | River Roding | Warning |
| The Tidal River Crane at Isleworth | River Crane | Warning |
| River Thames in the Sunbury town area, including Longwood Business Park, Halliford Road areas of Upper Halliford and Sunbury, Lower Hampton Road park, Kenton Court Meadow and Kempton Park Racecourse areas | River Thames | Warning |
| The Pymmes Brook from Bowes Park to Edmonton | Pymmes Brook | Warning |
| Ravensbourne at Lewisham, Including Ladywell, London Borough of Lewisham | River Ravensbourne | Warning |
| The Tidal River Brent at Brentford | River Brent | Warning |
| The Deans Brook at Edgware | Deans Brook | Warning |
| River Thames from Richmond Bridge to Teddington Weir including West Petersham and Ham Lands | River Thames | Warning |
| River Thames from the River Crane to Teddington Weir including St. Margaret's, Eel Pie Island, Strawberry Hill and East Teddington | River Thames | Warning |
| River Thames at Deptford including west Deptford, New Cross Gate and Southwark Park | River Thames | Warning |
| River Thames at Hammersmith and West Kensington including central Hammersmith, Olympia, Brook Green and West Kensington | River Thames | Warning |
| River Thames from Rotherhithe Station to London Bridge including Rotherhithe, north Bermondsey and London Bridge | River Thames | Warning |
| River Thames at Chiswick including Ravenscourt Park, west Shepherd's Bush, Stamford Brook, Turnham Green and Chiswick Park | River Thames | Warning |
| River Thames at South Bermondsey including the Den and areas between the Old Kent Road and the railway line | River Thames | Warning |
| River Thames at Camberwell including Burgess Park, north Camberwell and Kennington Park | River Thames | Warning |
| River Thames from Beckton Sewage Works to the River Lee including Beckton Gas Works, London City Airport, the ExCeL Centre, areas around the King George V, Royal Albert and Royal Victoria docks and Canning Town | River Thames | Warning |
| River Thames from London Bridge to Hungerford Bridge including Borough, the South Bank, Elephant and Castle and Waterloo | River Thames | Warning |
| River Thames at the Isle of Dogs north of South Dock including Canary Wharf, Blackwall, South Bromley, Poplar and Limehouse | River Thames | Warning |
| River Thames at Beckton including Canning Town, Custom House, and Beckton | River Thames | Warning |
| River Thames at Walworth including south Elephant and Castle, Kennington and north Lambeth | River Thames | Warning |
| River Thames at the Isle of Dogs south of South Dock including areas around West India and Millwall Docks, Cubitt Town, and Mudchute | River Thames | Warning |
| River Thames at Mill Meads and East Plaistow including Star Lane, Plaistow, Mill Meads and south Stratford Marshes | River Thames | Warning |
| River Thames from Hungerford Bridge to Battersea Power Station including Waterloo, Albert Embankment, Vauxhall, Oval and Nine Elms | River Thames | Warning |
| River Thames from Battersea Bridge to Putney Bridge including Chelsea Harbour, Sands End, south Parsons Green and Hurlingham Park | River Thames | Warning |
| River Thames from Battersea Power Station to Battersea Bridge including Battersea | River Thames | Warning |
| River Thames at south Fulham including north Parsons Green, Walham Green and Eel Brook Common | River Thames | Warning |
| River Thames from Battersea Bridge to Wandsworth Bridge including west Battersea, Clapham Junction and east Wandsworth | River Thames | Warning |
| River Thames at north Fulham including Stamford Bridge, areas to the west of Earls Court, Barons Court and West Kensington | River Thames | Warning |
| River Thames from Deptford Creek to Rotherhithe Station including east Deptford, Convoys Wharf, Surrey Docks, Canada Water and the riverside at Rotherhithe | River Thames | Warning |
| River Thames from Putney Bridge to the Hogarth Lane Roundabout including Fulham Palace, Craven Cottage, the Hammersmith Flyover, Furnival Gardens and South Chiswick | River Thames | Warning |
| River Thames from Blackfriars Bridge to Vauxhall Bridge including Temple, Embankment and Houses of Parliament | River Thames | Warning |
| River Thames from Vauxhall Bridge to Battersea Bridge including Pimlico, Belgravia and Chelsea Embankment | River Thames | Warning |
| River Thames at Westminster including St James's Park, Victoria and Westminster Cathedral | River Thames | Warning |
| The River Rom at Collier Row | Rom | Warning |
| Properties on Meadow Lane, Amblecote Road and Chinbrook Road at risk of flooding from the River Quaggy at Chinbrook Meadows | River Quaggy | Warning |
| Surbiton Stream at Berrylands, Alexandra, Surbiton Hill, Tolworth and Hook Rise, London Borough of Kingston upon Thames | Surbiton | Warning |
| The Loxford Water including Hainault, Seven Kings and Ilford | Loxford Water | Alert |
| The Loxford Water at Seven Kings and Ilford | Loxford Water | Warning |
| The Kenton Brook feeding into the Wealdstone Brook | Kenton Brook, Brent | Warning |
| The River Thames from Erith High Street to Woolwich Arsenal including Erith Marshes, Thamesmead, Abbey Wood, North Plumstead and the Woolwich Arsenal site. | River Thames | Warning |