Environment Agency012FWFM21ACumbria and Lancashire
Whinney Brook and Dovers Brook at Maghull, around Sefton Lane and the Waste Transfer Station: flood history since 2015
The Environment Agency has issued 19 flood warnings and 1 severe flood warning for Whinney Brook and Dovers Brook at Maghull, around Sefton Lane and the Waste Transfer Station since 26 Dec 2015, most often in October; the busiest year was 2019 (5).
Severe flood warnings on record
The flood area
- Flood area
- Whinney Brook and Dovers Brook at Maghull, around Sefton Lane and the Waste Transfer Station
- Code
- 012FWFM21A
- Environment Agency area
- Cumbria and Lancashire
- County
- Sefton
- River or sea
- Whinney Brook, Dovers Brook
- First in the history
- 26 Dec 2015
- Latest in the history file
- 1 Jan 2025
- 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?
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 |
|---|---|---|---|
| 2025 | 0 | 1 | 0 |
| 2024 | 0 | 2 | 0 |
| 2023 | 0 | 3 | 0 |
| 2022 | 0 | 1 | 0 |
| 2021 | 0 | 2 | 1 |
| 2020 | 0 | 2 | 0 |
| 2019 | 0 | 5 | 0 |
| 2017 | 0 | 2 | 0 |
| 2015 | 0 | 1 | 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.
When in the year?
All alerts and warnings since 2015 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
| Date | Level |
|---|---|
| 1 Jan 2025 | Flood warning |
| 16 Oct 2024 | Flood warning |
| 30 Sep 2024 | Flood warning |
| 20 Oct 2023 | Flood warning |
| 26 Aug 2023 | Flood warning |
| 23 Jul 2023 | Flood warning |
| 30 Sep 2022 | Flood warning |
| 1 Nov 2021 | Flood warning |
| 20 Jan 2021 | Severe flood warning |
| 20 Jan 2021 | Flood warning |
| 6 Oct 2020 | Flood warning |
| 3 Oct 2020 | Flood warning |
Source: Environment Agency, Historic Flood Warnings (England); Environment Agency flood-monitoring API. Contains public sector information licensed under the Open Government Licence v3.0.