Severe Weather in United States
This alert is in force until 4 September 2026, 08:00 UTC.
It is the 5th strongest of the 8 detections recorded within 20 km of this point since 16 March 2026. The last comparable one was on 23 August 2026.
What the source measured
HEAT GOV reported: * WHAT...Heat index values up to 108 expected. * WHERE...In North Carolina, Coastal Brunswick, Coastal New Hanover, and Coastal Pender Counties. In South Carolina, Coastal Georgetown, Coastal Horry, Inland Georgetown, and Williamsburg Counties. * WHEN...From 11 AM to 8 PM EDT Friday. * IMPACTS...
An estimated 72,040 people live within 50 km of this point.
Nearby, since 16 March 2026
- May 11, 2026 · score 34 · 15.4 km
- March 16, 2026 · score 63 · 15.5 km
How we know
One source: HEAT GOV. Not yet confirmed by a second, independent source.
Our own score for this event is 32 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) | 32 / 100 |
| Our confidence | 69% |
| Coordinates | 33.5889, -79.3283 |
| Nearest City | Socastee (32 km) |
| Population Exposed | 72.0K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-09-04T15:00:00.000Z |
| Source | http://www.weather.gov |
Score Breakdown
Technical Details
| Event | Heat Advisory |
| Urgency | Expected |
| Certainty | Likely |
| Onset | 2026-09-04T11:00:00-04:00 |
| Expires | 2026-09-04T04:00:00-04:00 |
| AreaDesc | Coastal Pender; Coastal New Hanover; Coastal Brunswick; Williamsburg; Coastal Horry; Inland Georgetown; Coastal Georgetown |
| SenderName | NWS Wilmington NC |
| ZonesUsedForCentroid | 3 |
| 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 in this area?
Calamity.live data shows a weather event with CalamityScore 32/100 (United States), based on data from heat_gov. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.