Right now
The most recent data we hold from METEOALARM arrived 59 minutes ago, and this point is not in it. We record detections, not passes: an absence is not proof that nothing is there.
2 other detections within 20 km in the last 24 hours, the nearest <1 km from here.
This alert expired on 5 September 2026 at 22:00 UTC. It is kept here as a record.
It is one of only 3 we have recorded within 20 km of this point since 5 September 2026.
What the source measured
METEOALARM reported: MeteoAlarm carries a moderate warning for Porto (Yellow Thunderstorm Warning). Issued by the national meteorological service of Portugal. Placed at Porto, the nearest settlement in the warned area; the warning itself covers the whole area.
An estimated 1,729,331 people live within 50 km of this point.
Nearby, since 5 September 2026
- September 6, 2026 · score 46 · 0.0 km
- September 5, 2026 · score 46 · 0.0 km
How we know
Confirmed by 2 independent sources, including METEOALARM.
Our own score for this event is 46 out of 100, at 71 % 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) | 46 / 100 |
| Our confidence | 71% |
| Coordinates | 41.1500, -8.6100 |
| Nearest City | Porto (0 km) |
| Population Exposed | 1.7M within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-09-05T20:08:00.000Z |
| Source | https://meteoalarm.org?region=PT |
Score Breakdown
Technical Details
| Event | Yellow Thunderstorm Warning |
| CapSeverity | Moderate |
| CapCertainty | Likely |
| CapUrgency | Expected |
| AreaDesc | Porto |
| EmmaId | PT009 |
| CountryCode | PT |
| Country | Portugal |
| Expires | 2026-09-05T22:00:00+00:00 |
| PlacedAt | Porto |
| Placement | area-name |
| Ipma AwarenessLevel | yellow |
| Ipma AwarenessTypeName | Trovoada |
| Ipma DistrictId | PTO |
| Ipma DistrictName | Porto |
| Ipma StartTime | 2026-09-05T20:08:00 |
| Ipma EndTime | 2026-09-05T22:00:00 |
| MergedSources | [{"id":"ipma_PTO_2026-09-05","source":"ipma","severity":"medium","severityValue":40,"timestamp":1788638880000,"latitude":41.15,"longitude":-8.61}] |
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 Porto?
Calamity.live data shows a weather event with CalamityScore 46/100, near Porto (Portugal), based on data from meteoalarm. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.