Environment Agency122WAF949Yorkshire

Upper River Derwent: flood history since 2012

The Environment Agency has issued 67 flood alerts for Upper River Derwent since 4 Apr 2012, most often in November; the busiest year was 2024 (12).

Flood alerts only

The flood area

Flood area: Upper River Derwent
Code: 122WAF949
Environment Agency area: Yorkshire
County: East Riding of Yorkshire, North Yorkshire
River or sea: River Derwent, Sea Cut, River Hertford, Burniston Beck
First in the history: 4 Apr 2012
Latest in the history file: 19 Feb 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 Upper 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	3	0	0
2025	4	0	0
2024	12	0	0
2023	10	0	0
2022	2	0	0
2021	8	0	0
2020	6	0	0
2019	5	0	0
2018	2	0	0
2017	3	0	0
2016	3	0	0
2015	1	0	0
2013	2	0	0
2012	6	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 November

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.

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