Right now
The most recent data we hold from EA FLOOD arrived 49 minutes ago, and this point is in it.
Nothing else has been detected within 20 km in the last 24 hours.
Reported by EA FLOOD today.
It is the only one we have recorded within 20 km of this point since 16 March 2026. The last comparable one was on 26 August 2026.
What the source measured
EA FLOOD reported: Tidal areas of Shoreham Harbour
Urban PEI: 2,370,776 within a heuristic 50 km radius; not unique people.
Nearby, since 16 March 2026
- August 26, 2026 · 0.0 km
- March 31, 2026 · 0.0 km
- March 20, 2026 · 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 39 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 v5. Rows carrying other versions were judged by different rules and are not directly comparable.
Event Data
| Type | Floods |
| Severity | Medium |
| Calamity Score (ours) | 39 / 100 |
| Legacy data-support index | 0.70/1 |
| Coordinates | 50.9200, -0.2800 |
| Nearest City | Portslade (10 km) |
| Urban exposure index (PEI) | 2.4M within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-09-27T16:22:55.000Z |
| Source | http://environment.data.gov.uk/flood-monitoring/id/floods/065WAC408 |
Physical priority index · v5. 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: 2026-09-27T16:22:55.000Z.
First archived: 2026-09-27T18:02:38.868Z. 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 | Brighton and Hove, West Sussex |
| RiverOrSea | English Channel |
| EaAreaName | Solent and South Downs |
| FloodAreaID | 065WAC408 |
| IsTidal | true |
| TimeRaised | 2026-09-27T18:22:55 |
| TimeSeverityChanged | 2026-09-27T18:22:00 |
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.
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