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Environment Agency062WAF55IngrebrnHerts and North London

River Ingrebourne at Harold Park and Hornchurch: flood history since 2012

The Environment Agency has issued 27 flood alerts for River Ingrebourne at Harold Park and Hornchurch since 29 Apr 2012, most often in January; the busiest year was 2012 (6).

Flood alerts only

The flood area

Flood area
River Ingrebourne at Harold Park and Hornchurch
Code
062WAF55Ingrebrn
Environment Agency area
Herts and North London
County
Essex, Greater London, Havering
River or sea
Ingrebourne
First in the history
29 Apr 2012
Latest in the history file
8 Jan 2026
Current status
check-for-flooding.service.gov.uk (the Environment Agency's live page)

Flood alert, flood warning, severe flood warning: what each means

Source: Environment Agency, Historic Flood Warnings (England); Environment Agency flood-monitoring API. Contains public sector information licensed under the Open Government Licence v3.0.

How many alerts and warnings a year?

2012 was the busiest year for River Ingrebourne at Harold Park and Hornchurch
2462012: 620122014: 120142015: 120152016: 120162017: 320172019: 220192020: 220202021: 420212022: 120222024: 320242025: 220252026: 120262026 to June2462012: 620122014: 120142015: 120152016: 120162017: 320172019: 220192020: 220202021: 420212022: 120222024: 320242025: 220252026: 120262026 to June2462012: 620122014: 12015: 12016: 120162017: 32019: 22020: 220202021: 42022: 120222024: 32025: 22026: 120262026 to June2462012: 620122014: 12015: 12016: 120162017: 32019: 22020: 220202021: 42022: 120222024: 32025: 22026: 120262026 to June

Flood alerts, flood warnings and severe flood warnings (updates not counted), by year. 2026 runs to the end of June.

The numbers
YearAlertsWarningsSevere
2026100
2025200
2024300
2022100
2021400
2020200
2019200
2017300
2016100
2015100
2014100
2012600

Source: Environment Agency, Historic Flood Warnings (England); Environment Agency flood-monitoring API. Contains public sector information licensed under the Open Government Licence v3.0.

When in the year?

Most often in January
358Jan: 7JanFeb: 0FebMar: 1MarApr: 2AprMay: 1MayJun: 3JunJul: 3JulAug: 1AugSep: 0SepOct: 2OctNov: 4NovDec: 3Dec7358Jan: 7JanFeb: 0FebMar: 1MarApr: 2AprMay: 1MayJun: 3JunJul: 3JulAug: 1AugSep: 0SepOct: 2OctNov: 4NovDec: 3Dec7358Jan: 7JanFeb: 0FebMar: 1MarApr: 2AprMay: 1MayJun: 3JunJul: 3JulAug: 1AugSep: 0SepOct: 2OctNov: 4NovDec: 3Dec7358Jan: 7JFeb: 0FMar: 1MApr: 2AMay: 1MJun: 3JJul: 3JAug: 1ASep: 0SOct: 2ONov: 4NDec: 3D7

All alerts and warnings since 2012 by month.

Source: Environment Agency, Historic Flood Warnings (England); Environment Agency flood-monitoring API. Contains public sector information licensed under the Open Government Licence v3.0.

Before July 2026: the latest in the history file

DateLevel
8 Jan 2026Flood alert
13 Jun 2025Flood alert
5 Jan 2025Flood alert
27 Nov 2024Flood alert
21 May 2024Flood alert
4 Jan 2024Flood alert
6 Nov 2022Flood alert
20 Oct 2021Flood alert
18 Jun 2021Flood alert
30 Jan 2021Flood alert
14 Jan 2021Flood alert
4 Dec 2020Flood alert

Source: Environment Agency, Historic Flood Warnings (England); Environment Agency flood-monitoring API. Contains public sector information licensed under the Open Government Licence v3.0.