Flood Warning Area Information for Hertfordshire

Click on a flood area name to view live flood alerts and warnings and historical flood information.
The Dane End tributary at Dane End including Sacombe

Areas at risk of groundwater flooding around Flamstead, including Trowley Bottom and Lower Sawpit Wood

Areas at risk of groundwater flooding in Kimpton and Lilley Bottom, including Lye Hill, Whiteway and Claggy Bottom

The Lower Lee tributaries, including the Nazeing Brook, Ching Brook, Cobbins Brook, Pymmes Brook, Rags Brook, Salmons Brook, Turkey Brook, Trinity Marsh Ditch and the Small River Lee

The Lower River Colne and Frays River at Uxbridge, West Drayton, Poyle and Stanwell Moor

The Lower River Lee at Hoddesdon and Cheshunt including Broxbourne and Waltham Abbey

The Lower River Lee from Hoddesdon to Canning Town including, Cheshunt, Enfield, Edmonton, Tottenham, Walthamstow, Hackney, Stratford and West Ham

The Middle River Colne at Watford and Rickmansworth including Carpenders Park

The Mimmshall Brook at Warrengate Road including South Mimms, Potters Bar, Brookmans Park and Welham Green

The Mimmshall Brook at Warrengate Road including Water End

The Radlett and Borehamwood Brooks at Borehamwood

The Radlett Brook at Radlett

The Rags Brook at Flamstead End to Cheshunt

The River Ash at Furneux Pelham including Clapgate

The River Ash at Little Hadham, Hadham Ford, Much Hadham, Widford and Wareside

The River Ash in Hertfordshire including Furneux Pelham, Little Hadham, Much Hadham and Wareside

The River Beane at Hertford

The River Beane at Walkern including Holbrook

The River Beane at Watton-at-Stone to Waterford including Stapleford

The River Beane catchment including the Stevenage Brook and the Dane End Tributary

The River Bulbourne at Boxmoor, Hemel Hempstead

The River Chess at Chenies, including Latimer and Sarratt

The River Chess at Loudwater, Rickmansworth

The River Chess at Chesham, Chenies and Loudwater

The River Colne at Colney Heath including North Mymms

The River Colne at London Colney including Colney Street and Broad Colney

The River Colne at Rickmansworth including Batchworth, Money Hill and Maple Cross

The River Colne at Watford including Bushey

The River Colne at Willowbank including Uxbridge Moor

The River Gade at Frogmore End including Apsley and Bennets End, Hemel Hempstead

The River Gade at Hemel Hempstead

The River Gade at Kings Langley and Croxley, including Abbots Langley

River Ivel from Langford to Blunham, including the rivers Purwell, Hiz, Flit and Hit

River Lee at Harpenden and Wheathampstead including East Hyde

River Lee at Hertford including Lemsford, Hatfield, Ware and Stanstead Abbotts

River Lee at Hertford and Ware including Stanstead Abbotts

River Lee at Luton, Harpenden including Wheathampstead and East Hyde

River Lee from Lemsford to Hertford including Welwyn Garden City, Hatfield and Mill Green

The River Mimram at Welwyn including Welwyn Garden City and Digswell

The River Mimram at Whitwell including Codicote

The River Mimram from Tewin to Hertford including Hertingfordbury

The River Mimram at Whitwell, Welwyn, Tewin, Hertingfordbury and Hertford

The River Quin at Braughing

River Rhee from Guilden Morden to Haslingfield

The River Rib at Buntingford to Barwick including Standon

The River Rib at Wadesmill to Hertford

The River Stort, Stansted Brook and their tributaries from Clavering to Hoddesdon including Stanstead Mountfitchet, Bishops Stortford, Sawbridgeworth and Harlow

The River Stort at Bishops Stortford including Spellbrook

The River Stort at Clavering and Manuden

The River Stort at Harlow including Roydon

The River Stort at Sawbridgeworth

River Thame from Marsworth to Dorchester including, Long Marston, Rowsham, North Aylesbury, Cuddington, Thame, Shabbington, Ickford, Waterperry, Cuddesdon, Wheatley, Quarrendon, Drayton St Leonard, Overy, the Chalgrove Brook at Chalgrove and Stadhampton

River Thame from Long Marston to Eythrope including Rowsham and North Aylesbury

The River Ver at Markyate including Flamstead, Harpenden

The River Ver at Redbourn including Redbournbury

The River Ver at St Albans including Sopwell, Park Street and Frogmore

The River Ver at Markyate, Redbourn and St. Albans

The River Gade and Bulbourne at Boxmoor, Hemel Hempstead, Frogmore End, Kings Langley and Croxley

The Rivers Rib and Quin at Chipping, Buntingford, Braughing, Standon, Barwick, Wadesmill and Hertford

The Small River Lee at Cheshunt including, Turnford, Holdbrook and Enfield Lock

The Stevenage Brook at Stevenage including Hooks Cross

Trinity Marsh Ditch at Waltham Cross

The Upper River Colne and Radlett Brook at Colney Heath, London Colney, Borehamwood and Radlett