This alert expired on 6 August 2026 at 12:45 UTC. It is kept here as a record.
No stronger detection stands among the 31 recorded within 20 km of this point since 8 March 2026 — 17 others scored the same. The last comparable one was on 2 August 2026. 7 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Special Marine Warning issued August 6 at 7:44AM EDT until August 6 at 8:45AM EDT by NWS Wilmington NC
An estimated 322,230 people live within 50 km of this point.
Nearby, since 8 March 2026
- August 27, 2026 · score 37 · 4.2 km
- July 30, 2026 · score 43 · 13.3 km
- August 2, 2026 · score 43 · 17.4 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 43 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) | 43 / 100 |
| Our confidence | 81% |
| Coordinates | 32.6438, -79.5706 |
| Nearest City | Mount Pleasant (32 km) |
| Population Exposed | 322.2K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-08-06T11:44:00.000Z |
Score Breakdown
Technical Details
| Event | Special Marine Warning |
| Urgency | Immediate |
| Certainty | Likely |
| AreaDesc | Waters from Little River Inlet SC to South Santee River SC from 20 to 60 NM; Coastal waters from South Santee River to Edisto Beach SC out 20 NM; Coastal waters from Edisto Beach SC to Savannah GA out 20 NM; Coastal waters from Savannah GA to Altamaha Sound GA out 20 nm, including Grays Reef National Marine Sanctuary |
| Headline | Special Marine Warning issued August 6 at 7:44AM EDT until August 6 at 8:45AM EDT by NWS Wilmington NC |
| Expires | 2026-08-06T08:45:00-04:00 |
| SenderName | NWS Wilmington NC |
| HasExactCoords | true |
| MergedCount | 2 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.0a0caf64616b04f78ffa1662774b38347231deba.001.1","noaa_urn:oid:2.49.0.1.840.0.15a77f24a42fa9f08611d156f61aa6a87e92da99.001.1"] |
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 43/100, near Mount Pleasant (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 194 scientific monitoring sources.