This alert expired on 8 August 2026 at 23:30 UTC. It is kept here as a record.
No stronger detection stands among the 89 recorded within 20 km of this point since 16 March 2026 — 58 others scored the same. The last comparable one was on 6 August 2026. 9 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued August 8 at 6:39PM EDT until August 8 at 7:30PM EDT by NWS Raleigh NC
An estimated 1,591,740 people live within 50 km of this point.
Nearby, since 16 March 2026
- August 6, 2026 · score 52 · 6.0 km
- July 29, 2026 · score 52 · 8.8 km
- June 19, 2026 · score 52 · 9.6 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 52 out of 100, at 81 % confidence.
The score is ours, computed from intensity, exposed population and local history — not the source’s.
Event Data
| Type | Severe weather |
| Severity | medium |
| Calamity Score (ours) | 52 / 100 |
| Our confidence | 81% |
| Coordinates | 35.8869, -78.9823 |
| Nearest City | Chapel Hill (7 km) |
| Population Exposed | 1.6M within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-08-08T22:39:00.000Z |
| Source | https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.e16508bfdce21d1c64c181d0b4d3a99bca8795ac.001.1 |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Chatham, NC; Durham, NC; Orange, NC |
| Headline | Severe Thunderstorm Warning issued August 8 at 6:39PM EDT until August 8 at 7:30PM EDT by NWS Raleigh NC |
| Expires | 2026-08-08T19:30:00-04:00 |
| SenderName | NWS Raleigh NC |
| HasExactCoords | true |
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 10 February 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.
Calamity.live data shows a weather event with CalamityScore 52/100, near Chapel Hill (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 188 scientific monitoring sources.