Right now
The most recent data we hold from METEOALARM arrived 3 hours ago, and this point is not in it. We record detections, not passes: an absence is not proof that nothing is there.
Nothing else has been detected within 20 km in the last 24 hours.
This alert expired on 18 September 2026 at 03:39 UTC. It is kept here as a record.
It is the 703rd strongest of the 707 detections recorded within 20 km of this point since 5 April 2026. The last comparable one was on 12 September 2026. 3 more were recorded here in the fortnight before it.
What the source measured
METEOALARM reported: MeteoAlarm carries a moderate warning for IJmuiden (Moderate Wind). Issued by the national meteorological service of Netherlands. Placed at IJmuiden, the nearest settlement in the warned area; the warning itself covers the whole area.
Urban PEI: 3,976,379 within a heuristic 50 km radius; not unique people.
Nearby, since 5 April 2026
- September 12, 2026 · score 46 · 0.0 km
- September 8, 2026 · score 46 · 0.0 km
- September 7, 2026 · score 46 · 0.0 km
How we know
One source: METEOALARM. 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 v5. Rows carrying other versions were judged by different rules and are not directly comparable.
Event Data
| Type | Severe Weather |
| Severity | Medium |
| Calamity Score (ours) | 46 / 100 |
| Legacy data-support index | 0.69/1 |
| Coordinates | 52.4600, 4.6100 |
| Nearest City | IJmuiden (0 km) |
| Urban exposure index (PEI) | 4.0M within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-09-16T20:54:38.000Z |
| Source | https://meteoalarm.org?region=NL |
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: meteoalarm. Occurrence: 2026-09-16T20:54:38.000Z.
First archived: 2026-09-16T21:15:02.997Z. 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
| Event | Moderate Wind |
| CapSeverity | Moderate |
| CapCertainty | Observed |
| CapUrgency | Expected |
| AreaDesc | IJmuiden |
| EmmaId | NL803 |
| CountryCode | NL |
| Country | Netherlands |
| Expires | 2026-09-18T03:39:07+00:00 |
| PlacedAt | IJmuiden |
| Placement | area-name |
Safety Information
Always follow official guidance from your local emergency management agency. This platform provides scientific monitoring data and is not a substitute for official warnings. If you are in immediate danger, contact your local emergency number.
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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