Right now
Nothing else has been detected within 20 km in the last 24 hours.
Reported by EA FLOOD 165 days ago.
It is the strongest of the 16 detections recorded within 20 km of this point since 10 March 2026. The last comparable one was on 25 March 2026. 7 more were recorded here in the fortnight before it.
What the source measured
EA FLOOD reported: Groundwater flooding in the Bourne Valley - The Winterbournes
An estimated 1,808,387 people live within 50 km of this point.
Nearby, since 10 March 2026
- August 30, 2026 · score 46 · 0.0 km
- April 21, 2026 · score 46 · 0.0 km
- April 6, 2026 · score 46 · 0.0 km
How we know
One source: EA FLOOD. Not yet confirmed by a second, independent source.
Our own score for this event is 51 out of 100, at 79 % confidence.
The score is ours, computed from intensity, exposed population and local history — not the source’s.
Computed under scoring rules v1. Rows carrying other versions were judged by different rules and are not directly comparable.
Event Data
| Type | Floods |
| Severity | High |
| Calamity Score (ours) | 51 / 100 |
| Our confidence | 79% |
| Coordinates | 51.0600, -1.3100 |
| Nearest City | Winchester (1 km) |
| Population Exposed | 1.8M within 50 km |
| Impact Tier | severe |
| Timestamp | 2026-03-30T10:28:20.000Z |
| Source | http://environment.data.gov.uk/flood-monitoring/id/floods/111FWGBOU3 |
Score Breakdown
Technical Details
| SeverityLevel | 2 |
| FloodCategory | Flood Warning |
| County | Hampshire, Wiltshire |
| RiverOrSea | Groundwater |
| EaAreaName | Wessex |
| FloodAreaID | 111FWGBOU3 |
| IsTidal | false |
| TimeRaised | 2026-03-30T12:28:20 |
| TimeSeverityChanged | 2026-01-31T10:29:00 |
Cascade Risks
Safety Information
During flooding: never walk, swim, or drive through floodwaters. Six inches of moving water can knock you down, and one foot of water can sweep away a vehicle. Move to higher ground if waters rise. After flooding, avoid contact with floodwater which may contain sewage, chemicals, or debris. Follow local emergency service guidance.
Series begins 8 March 2026. Comparisons refer to that period only. Collection gap: 14-26 August 2026.
This data is aggregated algorithmically from scientific sources. Not a replacement for official emergency warnings.
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