This alert is in force until 3 September 2026, 23:00 UTC.
It is the 23rd strongest of the 27 detections recorded within 20 km of this point since 11 May 2026. The last comparable one was on 21 June 2026.
What the source measured
HEAT GOV reported: * WHAT...Heat index values up to 113 expected. * WHERE...Inland Calhoun, Inland Kleberg, Inland Nueces, Inland Refugio, Inland San Patricio, Jim Wells, and Victoria Counties. * WHEN...From noon to 6 PM CDT Thursday. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses.
An estimated 332,355 people live within 50 km of this point.
Nearby, since 11 May 2026
- May 29, 2026 · score 43 · 6.6 km
- May 27, 2026 · score 43 · 8.2 km
- May 21, 2026 · score 43 · 11.9 km
How we know
One source: HEAT GOV. 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 | 28.0682, -97.3921 |
| Nearest City | Portland (22 km) |
| Population Exposed | 332.4K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-09-03T17:00:00.000Z |
| Source | http://www.weather.gov |
Score Breakdown
Technical Details
| Event | Heat Advisory |
| Urgency | Expected |
| Certainty | Likely |
| Onset | 2026-09-03T12:00:00-05:00 |
| Expires | 2026-09-03T18:00:00-05:00 |
| AreaDesc | Victoria; Jim Wells; Inland Kleberg; Inland Nueces; Inland San Patricio; Inland Refugio; Inland Calhoun |
| SenderName | NWS Corpus Christi TX |
| ZonesUsedForCentroid | 7 |
| ZoneCount | 7 |
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 Portland?
Calamity.live data shows a weather event with CalamityScore 37/100, near Portland (United States), based on data from heat_gov. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.