Environment Agency122WAF950Yorkshire

Lower River Derwent: flood history since 2010

The Environment Agency has issued 60 flood alerts for Lower River Derwent since 15 Dec 2010, most often in December; the busiest year was 2024 (9).

Flood alerts only

The flood area

Flood area: Lower River Derwent
Code: 122WAF950
Environment Agency area: Yorkshire
County: East Riding of Yorkshire, North Yorkshire, York
River or sea: River Derwent
First in the history: 15 Dec 2010
Latest in the history file: 22 Jan 2026
Current status: check-for-flooding.service.gov.uk (the Environment Agency's live page)

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

2024 was the busiest year for Lower River Derwent

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

The numbers

Year	Alerts	Warnings	Severe
2026	1	0	0
2025	6	0	0
2024	9	0	0
2023	8	0	0
2022	2	0	0
2021	1	0	0
2020	3	0	0
2019	4	0	0
2018	3	0	0
2017	3	0	0
2016	5	0	0
2015	1	0	0
2014	2	0	0
2013	2	0	0
2012	7	0	0
2011	2	0	0
2010	1	0	0

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

Most often in December

All alerts and warnings since 2010 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.

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