Environment Agency112WATSVN2Wessex
Severn Estuary at Oldbury-on-Severn, Northwick and Avonmouth: flood history since 2012
The Environment Agency has issued 77 flood alerts for Severn Estuary at Oldbury-on-Severn, Northwick and Avonmouth since 16 Oct 2012, most often in February; the busiest year was 2014 (15).
Flood alerts only
The flood area
- Flood area
- Severn Estuary at Oldbury-on-Severn, Northwick and Avonmouth
- Code
- 112WATSVN2
- Environment Agency area
- Wessex
- County
- City of Bristol, Gloucestershire, South Gloucestershire
- River or sea
- Severn Estuary
- First in the history
- 16 Oct 2012
- Latest in the history file
- 4 Apr 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?
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 | 1 | 0 | 0 |
| 2024 | 5 | 0 | 0 |
| 2023 | 5 | 0 | 0 |
| 2022 | 1 | 0 | 0 |
| 2021 | 1 | 0 | 0 |
| 2020 | 5 | 0 | 0 |
| 2019 | 5 | 0 | 0 |
| 2018 | 2 | 0 | 0 |
| 2017 | 1 | 0 | 0 |
| 2016 | 15 | 0 | 0 |
| 2015 | 15 | 0 | 0 |
| 2014 | 15 | 0 | 0 |
| 2013 | 2 | 0 | 0 |
| 2012 | 3 | 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 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.
Before July 2026: the latest in the history file
| Date | Level |
|---|---|
| 4 Apr 2026 | Flood alert |
| 5 Dec 2025 | Flood alert |
| 18 Oct 2024 | Flood alert |
| 21 Aug 2024 | Flood alert |
| 8 Apr 2024 | Flood alert |
| 11 Mar 2024 | Flood alert |
| 11 Feb 2024 | Flood alert |
| 29 Oct 2023 | Flood alert |
| 30 Sep 2023 | Flood alert |
| 1 Sep 2023 | Flood alert |
| 22 Mar 2023 | Flood alert |
| 21 Feb 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.