Right now
The most recent data we hold from METEOALARM arrived 2 hours ago, and this point is not in it. We record detections, not passes: an absence is not proof that nothing is there.
One other detection within 20 km in the last 24 hours, <1 km from here.
This alert expired on 16 September 2026 at 00:00 UTC. It is kept here as a record.
No stronger detection stands among the 11 recorded within 20 km of this point since 3 September 2026 — 3 others scored the same. The last comparable one was on 11 September 2026. 8 more were recorded here in the fortnight before it.
What the source measured
METEOALARM reported: MeteoAlarm carries a moderate warning for Kreis Nienburg (Weser) (heavy thunderstorms with heavy rain). Issued by the national meteorological service of Germany. Placed at Nienburg, the nearest settlement in the warned area; the warning itself covers the whole area.
Urban PEI: 1,283,929 within a heuristic 50 km radius; not unique people.
Nearby, since 3 September 2026
- September 8, 2026 · score 46 · 0.0 km
- September 8, 2026 · score 41 · 18.6 km
How we know
2 recorded sources include METEOALARM; independence is not established by this count.
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 | 0.76/1 |
| Coordinates | 52.6500, 9.2200 |
| Nearest City | Nienburg (0 km) |
| Urban exposure index (PEI) | 1.3M within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-09-15T23:00:00.000Z |
| Source | https://meteoalarm.org?region=DE |
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: 2026-09-15T23:00:00.000Z.
First archived: 2026-09-15T22:07:09.831Z. Material modification: 2026-09-15T23:35:37.449Z.
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 | heavy thunderstorms with heavy rain |
| CapSeverity | Moderate |
| CapCertainty | Likely |
| CapUrgency | Immediate |
| AreaDesc | Kreis Nienburg (Weser) |
| EmmaId | DE298 |
| CountryCode | DE |
| Country | Germany |
| Expires | 2026-09-16T00:00:00+00:00 |
| PlacedAt | Nienburg |
| Placement | area-name-component |
| Dwd Event | heavy thunderstorms with gale- or storm-force gusts, heavy rain and hail |
| Dwd Level | Moderate |
| Dwd Urgency | Immediate |
| Dwd Certainty | Likely |
| Dwd AreaDesc | polygonal event area |
| Dwd Expires | 2026-09-16T01:30:00+02:00 |
| Dwd Instruction | Hazard(s) caused by: lightning (danger to life!); single branches falling; objects flying through the air; isolated, rapid flooding of roads and subways; aquaplaning; hail. Recommendations for what to do: Avoid staying outdoors and seek shelter (e.g. in buildings). Avoid being near lakes and river |
| Dwd CapIdentifier | 2.49.0.0.276.0.DWD.PVW.1789512120000.a47aa84b-a8b0-45cf-992e-104818fea507.ENG |
| Dwd Licence | GeoNutzV — Deutscher Wetterdienst, source note required |
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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