This alert is in force until 4 September 2026, 18:00 UTC.
It is the only one we have recorded within 20 km of this point since 3 September 2026.
What the source measured
METEOALARM reported: MeteoAlarm carries a moderate warning for Viseu (Yellow High Temperature Warning). Issued by the national meteorological service of Portugal. Placed at Viseu, the nearest settlement in the warned area; the warning itself covers the whole area.
An estimated 124,648 people live within 50 km of this point.
How we know
One source: METEOALARM. Not yet confirmed by a second, independent source.
Our own score for this event is 37 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) | 37 / 100 |
| Our confidence | 69% |
| Coordinates | 40.6600, -7.9100 |
| Nearest City | Viseu (0 km) |
| Population Exposed | 124.6K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-09-03T09:00:00.000Z |
| Source | https://meteoalarm.org?region=PT |
Score Breakdown
Technical Details
| Event | Yellow High Temperature Warning |
| CapSeverity | Moderate |
| CapCertainty | Likely |
| CapUrgency | Expected |
| AreaDesc | Viseu |
| EmmaId | PT011 |
| CountryCode | PT |
| Country | Portugal |
| Expires | 2026-09-04T18:00:00+00:00 |
| PlacedAt | Viseu |
| 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.
Want to know when something happens near Viseu?
Calamity.live data shows a weather event with CalamityScore 37/100, near Viseu (Portugal), based on data from meteoalarm. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.