Environment AgencyWessex
Flood areas in Wessex
Wessex has 275 flood areas with at least one alert or warning since 2006; Somerset coast at Porlock Weir has had the most (392).
Flood areas in Wessex with ten or more alerts and warnings
- Somerset coast at Porlock Weir392 since 2012
- Christchurch Harbour294 since 2011
- Tidal River Avon at Bristol, Pill and Shirehampton265 since 2012
- West Dorset Rivers and Streams231 since 2010
- Dorset coast at Poole Harbour209 since 2011
- South East Somerset Rivers, Upper Reaches204 since 2006
- West Bay Harbour177 since 2011
- East coast of Dorset168 since 2012
- South Somerset Rivers, Upper Reaches166 since 2006
- West Somerset Streams159 since 2007
- West coast of Dorset157 since 2011
- River Chew catchment154 since 2006
- Upper Bristol Avon area144 since 2006
- Mid Bristol Avon area142 since 2006
- East Somerset Rivers139 since 2006
- Upper Frome and tributaries133 since 2011
- Upper Stour and tributaries122 since 2011
- Somerset coast at Minehead, Bridgwater, Burnham-on-Sea and Uphill to Kingston Seymour114 since 2012
- River Tone catchment103 since 2013
- Somerset coast at Dunster Beaches, Blue Anchor, Steart, Stolford and Brean94 since 2012
- Middle Stour and tributaries92 since 2011
- Weymouth Rivers and Streams90 since 2011
- Lower Frome and tributaries86 since 2012
- Somerset coast at Clevedon82 since 2015
- Lower Frome from East Stoke to Wareham80 since 2006
- Severn Estuary at Oldbury-on-Severn, Northwick and Avonmouth77 since 2012
- Weymouth Harbour75 since 2011
- West Bay Harbour and Esplanade73 since 2012
- Somerset coast at Porlock Weir73 since 2012
- Severn Estuary at Severn Beach73 since 2013
- Lower Avon and tributaries71 since 2011
- North Somerset area70 since 2007
- River Nadder and tributaries70 since 2011
- Lyme Regis Harbour67 since 2013
- River Brue and Glastonbury Millstream from Lovington to Highbridge, low lying properties66 since 2012
- Purbeck Rivers and Streams65 since 2011
- Upper Frome from Maiden Newton to Dorchester64 since 2008
- Upper Frome at Maiden Newton63 since 2015
- Lower Frome from Dorchester to East Stoke60 since 2007
- Lower Tone and Parrett Moors58 since 2012
- Lower Stour and tributaries57 since 2012
- Somerset coast at Portishead and Portbury Dock57 since 2015
- River Cale and tributaries55 since 2011
- Lower Bristol Avon area49 since 2007
- Christchurch Harbour Side48 since 2007
- Dorset coast at Preston Beach47 since 2006
- River Char at Dolphins River Caravan Park47 since 2012
- Dorset coast at Chiswell46 since 2006
- Middle Stour from Hammoon to Sturminster Marshall45 since 2006
- Somerset coast at Portishead and Portbury Dock, seafront properties and Portbury Dock areas44 since 2012
- River Wey from Upwey to Weymouth43 since 2008
- River Piddle and tributaries42 since 2012
- Poole Harbour at West Quay and Lower Hamworthy Quay41 since 2012
- Bristol Frome catchment40 since 2007
- Doniford Stream in the Sampford Mill Farm area40 since 2008
- Lower Stour at Redhill and Wheatplot Home Sites40 since 2008
- River Yeo and River Parrett Moors around Muchelney and Thorney40 since 2014
- River Wylye and tributaries39 since 2011
- Upper Hampshire Avon and tributaries38 since 2011
- River Char at Charmouth37 since 2007
- Lower Stour from Sturminster Marshall to Christchurch37 since 2012
- Somerset Frome area36 since 2008
- River Ebble and tributaries35 since 2014
- Bristol Avon (upper) from Chippenham to Melksham35 since 2017
- Little Avon catchment and the Vale of Berkeley33 since 2007
- Tidal River Avon at Pill and Shirehampton, Watch House Road and Station Road areas33 since 2012
- River Biss catchment32 since 2009
- Washford River, riverside properties from Kingsbridge to Lower Roadwater31 since 2012
- Somerset coast at Clevedon, seafront properties31 since 2012
- River Parrett (upper) from South Perrott to Thorney31 since 2019
- Rivers Stour and Iwerne at Stourpaine28 since 2016
- River Brit at Newtown, and Southgate Old Mill, Beaminster27 since 2012
- Winford Brook at Chew Magna27 since 2016
- River Wriggle at Chetnole26 since 2012
- Portland Harbour at Ferry Bridge25 since 2014
- Groundwater flooding in the Cranborne Chase area24 since 2012
- Somerset coast at Dunster Beaches, seafront and chalet area24 since 2014
- Midford Brook catchment23 since 2007
- Middle Hampshire Avon and tributaries23 since 2012
- Bristol Avon (upper) from Malmesbury to Chippenham23 since 2017
- Groundwater flooding in the West of Dorset22 since 2012
- River Bride from Long Bredy to Burton Bradstock21 since 2006
- River Bourne and tributaries21 since 2012
- Lower Avon from Ringwood to Christchurch19 since 2012
- River Yeo from Sherborne to Yeovil19 since 2023
- Lower Stour at Iford Bridge Home Park18 since 2012
- Lower Avon at The Bridges and Stubbings Meadow in Ringwood18 since 2012
- Middle Hampshire Avon from Salisbury to Ringwood18 since 2012
- River Tone from Bathpool to Ham including Ruishton and Creech St Michael, riverside properties18 since 2013
- River Brit at Riverside and George Street, West Bay17 since 2012
- River Aller16 since 2015
- Curry Moor and Hay Moor15 since 2012
- Severn Estuary from Sharpness to Oldbury-on-Severn, Shepperdine and Oldbury Power Station areas15 since 2014
- Paxcroft Brook and Lambrok Stream14 since 2012
- River Bourne at Tidworth and Shipton Bellinger Village Centres14 since 2012
- River Isle from Chard Reservoir to Hambridge not including Ilminster14 since 2019
- Bridgwater, Cannington and Combwich rivers14 since 2022
- Dauntsey Brook at Dauntsey, Old Sodom Lane and The Green areas13 since 2008
- Somerset coast at Weston-super-Mare, seafront properties13 since 2012
- Upper Hampshire Avon, Upavon to Amesbury13 since 2013
- Dorset coast at Swanage Bay13 since 2014
- Upper Wylye from Brixton Deverill to Warminster12 since 2008
- Lower Wylye from Warminster to Wilton12 since 2008
- River Sheppey12 since 2010
- River Brit at Skilling Playing Fields and West Bay Road Nursery12 since 2012
- Groundwater flooding in the Salisbury Plain area12 since 2012
- Severn Estuary at Oldbury-on-Severn, Oldbury Naite and Littleton Warth areas12 since 2014
- Groundwater flooding for the South Winterbourne Valley12 since 2016
- Bristol Avon (middle) at Bradford on Avon12 since 2019
- River Piddle from Alton Pancras to Wareham12 since 2019
- River Nadder, Tisbury to West Harnham11 since 2009
- Somerset coast at Blue Anchor, seafront properties11 since 2012
- Middle Hampshire Avon at St Marys Cathedral area, Salisbury11 since 2012
- Somerset coast at Minehead, seafront properties11 since 2014
- Poole Harbour at Wareham11 since 2014
- Groundwater flooding for the Iwerne11 since 2018
- Tetbury Avon at Malmesbury11 since 2020
- Bristol Avon (middle) from Melksham to Bathford, not including Bradford on Avon11 since 2020
- Doniford Stream at Sampford Brett and upstream properties10 since 2009
- Upper Frome at Dorchester10 since 2012
- Groundwater flooding for the North Winterborne, north of the A35410 since 2016
- River Isle at Ilminster10 since 2023
Wessex has 153 more flood areas with fewer than ten alerts and warnings since 2006.
Source: Environment Agency, Historic Flood Warnings (England); Environment Agency flood-monitoring API. Contains public sector information licensed under the Open Government Licence v3.0.