This alert expired on 3 September 2026 at 02:28 UTC. It is kept here as a record.
It is one of only 2 we have recorded within 20 km of this point since 2 September 2026. The last comparable one was on 2 September 2026.
What the source measured
METEOALARM reported: MeteoAlarm carries a moderate warning for Graz-Umgebung (Thunderstormwarning). Issued by the national meteorological service of Austria. Placed at Graz, the nearest settlement in the warned area; the warning itself covers the whole area.
An estimated 523,985 people live within 50 km of this point.
Nearby, since 2 September 2026
- September 2, 2026 · score 41 · 0.0 km
How we know
One source: METEOALARM. Not yet confirmed by a second, independent source.
Our own score for this event is 41 out of 100, at 69 % confidence.
The score is ours, computed from intensity, exposed population and local history — not the source’s.
Computed under scoring rules v4. Rows carrying other versions were judged by different rules and are not directly comparable.
Event Data
| Type | Severe Weather |
| Severity | Medium |
| Calamity Score (ours) | 41 / 100 |
| Our confidence | 69% |
| Coordinates | 47.0700, 15.4400 |
| Nearest City | Graz (0 km) |
| Population Exposed | 524.0K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-09-03T01:28:30.000Z |
| Source | https://meteoalarm.org?region=AT |
Score Breakdown
Technical Details
| Event | Thunderstormwarning |
| CapSeverity | Moderate |
| CapCertainty | Likely |
| CapUrgency | Future |
| AreaDesc | Graz-Umgebung |
| EmmaId | AT606 |
| CountryCode | AT |
| Country | Austria |
| Expires | 2026-09-03T02:28:30+00:00 |
| PlacedAt | Graz |
| Placement | area-name-component |
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.
Want to know when something happens near Graz?
Calamity.live data shows a weather event with CalamityScore 41/100, near Graz (Austria), based on data from meteoalarm. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.