Right now
The most recent data we hold from NOAA arrived 8 minutes ago, and this point is not in it. We record detections, not passes: an absence is not proof that nothing is there.
Nothing else has been detected within 20 km in the last 24 hours.
This alert expired on 3 August 2026 at 09:15 UTC. It is kept here as a record.
It is the 5th strongest of the 16 detections recorded within 20 km of this point since 30 April 2026. The last comparable one was on 11 July 2026. One more was recorded here in the fortnight before it.
What the source measured
NOAA reported: Special Marine Warning issued August 3 at 3:46AM EDT until August 3 at 5:15AM EDT by NWS Wilmington NC
An estimated 19,952 people live within 50 km of this point.
Nearby, since 30 April 2026
- August 10, 2026 · score 22 · 9.0 km
- August 13, 2026 · score 22 · 12.1 km
- July 11, 2026 · score 22 · 14.9 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 28 out of 100, at 82 % confidence.
The score is ours, computed from intensity, exposed population and local history — not the source’s.
Computed under scoring rules v1. Rows carrying other versions were judged by different rules and are not directly comparable.
Event Data
| Type | Severe Weather |
| Severity | Medium |
| Calamity Score (ours) | 28 / 100 |
| Our confidence | 82% |
| Coordinates | 33.2473, -79.0182 |
| Nearest City | Socastee (48 km) |
| Population Exposed | 20.0K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-08-03T07:46:00.000Z |
| Source | https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.eba21e7a126f75f095a140fe3b321ecdd83428b0.001.1 |
Score Breakdown
Technical Details
| Event | Special Marine Warning |
| Urgency | Immediate |
| Certainty | Likely |
| AreaDesc | Coastal waters from Murrells Inlet to South Santee River SC out 20 NM; Waters from Little River Inlet SC to South Santee River SC from 20 to 60 NM |
| Headline | Special Marine Warning issued August 3 at 3:46AM EDT until August 3 at 5:15AM EDT by NWS Wilmington NC |
| Expires | 2026-08-03T05:15:00-04:00 |
| SenderName | NWS Wilmington 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 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 28/100 (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.