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Does Warrington flood? 829 postcodes in Warrington are in the Environment Agency's rivers-and-sea flood-risk data (128 High, 123 Medium likelihood) — the breakdown is further down this page.
River Mersey at Westy (0.6 km) is above its typical high and still rising. No official flood warning covers this location yet — check GOV.UK flood warnings and keep watching river levels.
Updated 2026-10-09 13:00:33 UTC · Official GOV.UK warnings · Flood preparation & help guide
Warrington is an industrial town in Cheshire, England. The town is the main settlement of the Borough of Warrington and sits on the banks of the River Mersey, with the town centre and its suburbs north of that river historically having been part of Lancashire. It is 16 miles (26 km) east of Liverpool and the same distance west of Manchester.
Ordnance Survey places 829 postcodes in Warrington in the Environment Agency's rivers-and-sea flood-risk dataset (Risk of Flooding from Rivers and Sea). Each postcode is counted once, under the worst band any of its properties reaches; together they hold 13,300 properties in the EA dataset's likelihood bands.
| EA likelihood band | Postcodes (worst band) | Properties in the EA dataset | of which homes |
|---|---|---|---|
| High | 128 | 1,202 | 920 |
| Medium | 123 | 1,969 | 1,630 |
| Low | 541 | 9,633 | 8,483 |
| Very low | 37 | 496 | 430 |
| All bands | 829 | 13,300 | 11,463 |
This dataset covers flooding from rivers and the sea only — one of five flood sources. Surface water, groundwater, sewers and reservoirs are assessed separately, so a postcode missing from it is not proof that a place cannot flood. The band describes the land around properties (allowing for defences), not any single address and not today's conditions.
…and 729 more at-risk postcodes, listed on the district pages below.
Lymm · Runcorn · Golborne · Irlam · Leigh
Flood-risk bands: © Environment Agency copyright and/or database right 2025. All rights reserved. Some features of this map are based on digital spatial data from the Centre for Ecology & Hydrology, © NERC (CEH). © Crown Copyright and Database Rights 2025 OS AC0000807064. This product is produced in part from PAF® and Multiple Residence Data, the copyright in which is owned by Royal Mail Group Limited and/or Royal Mail Group plc. All rights reserved. Licence number AC0000807064.
Place names: Contains OS data © Crown copyright and database rights 2026. Contains Royal Mail data © Royal Mail copyright and database right 2026. Contains National Statistics data © Crown copyright and database right 2026. Licensed under the Open Government Licence v3.0.
Two mapped watercourses are about the same distance from the middle of Warrington's gauges: the River Mersey (about 110 m) and the Feeder (about 110 m), so this page cannot say which one is nearer to you.
Distances along the river are from the point on each watercourse nearest the middle of Warrington's gauges. From Ordnance Survey’s river map (OS Open Rivers), which leaves out small streams, ditches and culverts, so a nearer one may exist. This describes where water goes on the map; it says nothing about flooding at any address. Contains OS data © Crown copyright and database rights 2026.
Warrington is monitored by 3 Environment Agency river level stations on the Manchester ship canal, the Morris Brook, the Sankey Brook, in Warrington. Water levels are updated every 15 minutes, providing real-time flood monitoring for the area.
The Manchester ship canal is monitored by 1 station (Ferry Lane, Warrington). The Morris Brook is monitored by 1 station (Morris Brook). The Sankey Brook is monitored by 1 station (Causey Bridge). Each station records water levels continuously, with data synced to FloodRadar every 5 minutes.
There are 8 Environment Agency flood warning areas within 10km of Warrington. When the EA issues a flood warning for any of these areas, it will appear on this page. These include: The Kingsway North area of Warrington is at risk of flooding from the Estuary due to high tides. Areas at risk include Bennett Ave, Princess Ave, Bibby Ave; Peacock Ave; Kingsway North; around Bretton Ave; Farrell St; ambulance station and allotments; Areas including Newman High School, Brook Ave, Davenport Ave, Waring Ave, Bryant Ave, Bowman Ave and Mort Ave are at risk of flooding from the Estuary due to high tides; Victoria Park including the car park, bowling greens, running track, allotments, playground, skatepark and sports pitches.; Areas at risk include parts of Manor Park and Sandymoor Runcorn. Also parts of Howley, Wilderspool, Latchford, Westy, Paddington and Woolston.
There are 26 storm overflows within 5km of Warrington. 1 is currently discharging. Enable "Sewage" on the map above to see their locations.
6 of them, nearest first, with their own page of live status and past discharges:
If flooding is forecast in Warrington, call Floodline on 0345 988 1188 for the latest information. Move valuables upstairs, turn off gas and electricity if safe to do so, and avoid walking or driving through flood water. Sign up for flood warnings on any station page above to receive email alerts when water levels rise. For emergency numbers, a preparation checklist and insurance guidance, see our flood help & preparation guide.
Warrington gets about 813 mm of rain a year on average (wettest month October, 82 mm; driest March, 54 mm). That is 30% drier than the UK as a whole, which averages 1,163 mm a year. See the rain gauges →
A thirty-year average for the area, not a forecast and not a flood risk on its own. Source: Met Office HadUK-Grid 1991–2020 (5 km grid), 1.4 km away. Average rainfall: HadUK-Grid v1.3.2, Met Office. Contains public sector information licensed under the Open Government Licence v3.0.
Floods whose mapped extent (EA Recorded Flood Outlines) reached within ~5 km of the town centre — most recent first. These are records of mapped extents, not a full list of floods. See them on the map →
Records, not floods: no outline on the record is not evidence a place has not flooded.
Current verdict: Warning. River Mersey at Westy (0.6 km) is above its typical high and still rising. No official flood warning covers this location yet — check GOV.UK flood warnings and keep watching river levels.
Warrington has river level monitoring on Manchester ship canal, Morris Brook, Sankey Brook — 3 monitoring stations in total.
Use the GOV.UK Check for Flooding service (check-for-flooding.service.gov.uk) or call Floodline on 0345 988 1188 (24 hours). You can also set up free FloodRadar email or browser alerts from any station page above.
Follow official advice: move valuables and vehicles to safety, never walk or drive through flood water, turn off gas and electricity if safe, and check on vulnerable neighbours. See our flood preparation guide at floodradar.co.uk/flood-help.
Yes — the Environment Agency's Recorded Flood Outlines dataset shows 8 recorded flood extents around the town centre since 1703, most recently in 2025. That is a count of mapped extents, not of separate floods. Records, not floods: no outline on the record is not evidence a place has not flooded. See the flood history link below.
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