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Environment Agency051WAFEF3East Anglia

The River Stour from Sudbury to Stratford St Mary and Dedham: flood history since 2007

The Environment Agency has issued 29 flood alerts for The River Stour from Sudbury to Stratford St Mary and Dedham since 25 Feb 2007, most often in January; the busiest year was 2024 (6).

Flood alerts only

The flood area

Flood area
The River Stour from Sudbury to Stratford St Mary and Dedham
Code
051WAFEF3
Environment Agency area
East Anglia
County
Essex, Suffolk
River or sea
Stour
First in the history
25 Feb 2007
Latest in the history file
17 Feb 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?

2024 was the busiest year for The River Stour from Sudbury to Stratford St Mary and Dedham
2462011: 220112012: 220122013: 120132014: 220142016: 120162018: 120182019: 120192020: 220202021: 320212023: 320232024: 620242025: 120252026: 420262026 to June2462011: 220112012: 220122013: 120132014: 220142016: 120162018: 120182019: 120192020: 220202021: 320212023: 320232024: 620242025: 120252026: 420262026 to June2462011: 220112012: 22013: 12014: 220142016: 12018: 120182019: 12020: 220202021: 32023: 32024: 620242025: 12026: 420262026 to June2462011: 220112012: 22013: 12014: 220142016: 12018: 120182019: 12020: 220202021: 32023: 32024: 62025: 12026: 420262026 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
2026400
2025100
2024600
2023300
2021300
2020200
2019100
2018100
2016100
2014200
2013100
2012200
2011200

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
510Jan: 10JanFeb: 6FebMar: 1MarApr: 1AprMay: 2MayJun: 0JunJul: 0JulAug: 0AugSep: 0SepOct: 1OctNov: 2NovDec: 6Dec10510Jan: 10JanFeb: 6FebMar: 1MarApr: 1AprMay: 2MayJun: 0JunJul: 0JulAug: 0AugSep: 0SepOct: 1OctNov: 2NovDec: 6Dec10510Jan: 10JanFeb: 6FebMar: 1MarApr: 1AprMay: 2MayJun: 0JunJul: 0JulAug: 0AugSep: 0SepOct: 1OctNov: 2NovDec: 6Dec10510Jan: 10JFeb: 6FMar: 1MApr: 1AMay: 2MJun: 0JJul: 0JAug: 0ASep: 0SOct: 1ONov: 2NDec: 6D10

All alerts and warnings since 2007 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
17 Feb 2026Flood alert
7 Feb 2026Flood alert
28 Jan 2026Flood alert
9 Jan 2026Flood alert
6 Jan 2025Flood alert
9 Dec 2024Flood alert
23 May 2024Flood alert
24 Feb 2024Flood alert
18 Feb 2024Flood alert
9 Feb 2024Flood alert
2 Jan 2024Flood alert
2 Nov 2023Flood 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.