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No official flood warning is active nearby and the closest river stations are within normal ranges.
Updated 2026-10-10 12:32:01 UTC · Official GOV.UK warnings · Flood preparation & help guide
Cheshunt is a town in the Borough of Broxbourne, in Hertfordshire, England. It lies within the London commuter belt approximately 13 miles (21 km) north of Central London, on the River Lea and Lee Navigation, bordering the Lee Valley Park. At the 2021 census, the Cheshunt built-up area had a population of 43,680.
Towns and villages near Flamstead End with a page of their own: the homes in a flood risk area there, the nearest river gauges, and recorded floods.
Potters Bar · St Margarets · Stanstead Abbotts · Barnet
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.
The nearest watercourse on the river map is Rags Brook, about 10 m from the middle of Flamstead End's gauges. It flows into Turnford Brook about 2.6 km downstream.
A gauge downstream shows water that has already passed this point; one upstream sees it first. Distances along the river are from the point on Rags Brook nearest the middle of Flamstead End'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.
Flamstead End is monitored by 1 Environment Agency river level station on the Rags Brook, in Hertfordshire. Water levels are updated every 15 minutes, providing real-time flood monitoring for the area.
The Rags Brook is monitored by 1 station (Cheshunt, Rosedale Way). 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 Flamstead End. When the EA issues a flood warning for any of these areas, it will appear on this page. These include: The Rags Brook at Flamstead End to Cheshunt; Trinity Marsh Ditch at Waltham Cross; The Small River Lee at Cheshunt including, Turnford, Holdbrook and Enfield Lock; The Lower River Lee at Hoddesdon and Cheshunt including Broxbourne and Waltham Abbey.
If flooding is forecast in Flamstead End, 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.
Flamstead End gets about 675 mm of rain a year on average (wettest month October, 72 mm; driest March, 40 mm). That is 42% 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), 1.7 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: Normal. No official flood warning is active nearby and the closest river stations are within normal ranges.
Flamstead End has river level monitoring on Rags Brook — 1 monitoring station 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 1 recorded flood extent around the town centre since 1703, most recently in 1992. 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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