Environment Agency012WAFLYCumbria and Lancashire
River Lostock and River Yarrow: flood history since 2007
The Environment Agency has issued 58 flood alerts for River Lostock and River Yarrow since 3 Jul 2007, most often in December; the busiest year was 2024 (9).
Flood alerts only
The flood area
- Flood area
- River Lostock and River Yarrow
- Code
- 012WAFLY
- Environment Agency area
- Cumbria and Lancashire
- County
- Lancashire
- River or sea
- River Lostock, River Yarrow
- First in the history
- 3 Jul 2007
- Latest in the history file
- 20 Sep 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 | 2 | 0 | 0 |
| 2024 | 9 | 0 | 0 |
| 2023 | 4 | 0 | 0 |
| 2022 | 1 | 0 | 0 |
| 2021 | 4 | 0 | 0 |
| 2020 | 7 | 0 | 0 |
| 2019 | 5 | 0 | 0 |
| 2018 | 1 | 0 | 0 |
| 2017 | 1 | 0 | 0 |
| 2016 | 5 | 0 | 0 |
| 2015 | 8 | 0 | 0 |
| 2014 | 2 | 0 | 0 |
| 2013 | 1 | 0 | 0 |
| 2012 | 7 | 0 | 0 |
| 2011 | 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.
When in the year?
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
| Date | Level |
|---|---|
| 20 Sep 2025 | Flood alert |
| 5 Jan 2025 | Flood alert |
| 31 Dec 2024 | Flood alert |
| 5 Dec 2024 | Flood alert |
| 23 Nov 2024 | Flood alert |
| 16 Oct 2024 | Flood alert |
| 30 Sep 2024 | Flood alert |
| 22 May 2024 | Flood alert |
| 20 Feb 2024 | Flood alert |
| 3 Jan 2024 | Flood alert |
| 2 Jan 2024 | Flood alert |
| 9 Dec 2023 | Flood 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.