Right now
Nothing else has been detected within 20 km in the last 24 hours.
Reported by EA FLOOD 176 days ago.
No stronger detection stands among the 8 recorded within 20 km of this point since 30 March 2026 — 6 others scored the same.
What the source measured
EA FLOOD reported: River Thames at Trowlock Island
Urban PEI: 19,366,603 within a heuristic 50 km radius; not unique people.
Nearby, since 30 March 2026
- September 11, 2026 · score 39 · 0.0 km
- August 27, 2026 · score 46 · 0.0 km
- March 30, 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 46 out of 100.
This is our versioned heuristic index, not source severity or a calibrated probability. Urban PEI does not count unique people.
Computed under scoring rules v1. Rows carrying other versions were judged by different rules and are not directly comparable.
Event Data
| Type | Floods |
| Severity | Medium |
| Calamity Score (ours) | 46 / 100 |
| Legacy data-support index | 0.69/1 |
| Coordinates | 51.5100, -0.1300 |
| Nearest City | London (0 km) |
| Urban exposure index (PEI) | 19.4M within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-03-30T08:27:00.000Z |
| Source | http://environment.data.gov.uk/flood-monitoring/id/floods/061WAB23Trowlock |
Physical priority index · v1. Heuristic priority, not calibrated probability, predictive accuracy or damage. The legacy data-support index combines assigned source support and field availability. Urban PEI is distance-weighted and does not count unique people; zero does not establish that nobody is present. Model cards.
Source and revision timeline
Source: ea_flood. Occurrence: 2026-03-30T08:27:00.000Z.
First archived: 2026-03-30T16:09:20.510Z. Material modification: not recorded.
Retained revisions are prospective; earlier versions may be unavailable. No revision entry does not prove that a record never changed.
Score Breakdown
Technical Details
| SeverityLevel | 3 |
| FloodCategory | Flood Alert |
| County | Greater London, Richmond upon Thames |
| RiverOrSea | River Thames |
| EaAreaName | Thames |
| FloodAreaID | 061WAB23Trowlock |
| IsTidal | false |
| TimeRaised | 2026-03-30T10:27:00 |
| TimeSeverityChanged | 2026-03-30T10:26:00 |
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.
Review the area, threshold and delivery channel in your account.
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