Environment Agency065WAC151Solent and South Downs
Southampton Water and Hamble: flood history since 2011
The Environment Agency has issued 50 flood alerts for Southampton Water and Hamble since 12 Dec 2011, most often in November; the busiest year was 2014 (8).
Flood alerts only
The flood area
- Flood area
- Southampton Water and Hamble
- Code
- 065WAC151
- Environment Agency area
- Solent and South Downs
- County
- Hampshire, Southampton
- River or sea
- Southampton Water
- First in the history
- 12 Dec 2011
- Latest in the history file
- 3 Feb 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 | 2 | 0 | 0 |
| 2025 | 5 | 0 | 0 |
| 2024 | 5 | 0 | 0 |
| 2023 | 4 | 0 | 0 |
| 2022 | 6 | 0 | 0 |
| 2021 | 1 | 0 | 0 |
| 2020 | 6 | 0 | 0 |
| 2019 | 3 | 0 | 0 |
| 2018 | 2 | 0 | 0 |
| 2017 | 1 | 0 | 0 |
| 2016 | 1 | 0 | 0 |
| 2015 | 1 | 0 | 0 |
| 2014 | 8 | 0 | 0 |
| 2013 | 2 | 0 | 0 |
| 2012 | 2 | 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 2011 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 |
|---|---|
| 3 Feb 2026 | Flood alert |
| 8 Jan 2026 | Flood alert |
| 6 Nov 2025 | Flood alert |
| 5 Nov 2025 | Flood alert |
| 5 Nov 2025 | Flood alert |
| 4 Nov 2025 | Flood alert |
| 5 Jan 2025 | Flood alert |
| 20 Oct 2024 | Flood alert |
| 17 Oct 2024 | Flood alert |
| 6 Apr 2024 | Flood alert |
| 27 Mar 2024 | Flood alert |
| 8 Feb 2024 | 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.