Right now
The most recent data we hold from NOAA arrived 5 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 11 July 2026 at 22:00 UTC. It is kept here as a record.
It is the 2nd strongest of the 13 detections recorded within 20 km of this point since 30 April 2026. Another comparable one was recorded here earlier the same day. 2 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Special Marine Warning issued July 11 at 5:07PM EDT until July 11 at 6:00PM EDT by NWS Wilmington NC
Nearby, since 30 April 2026
- August 10, 2026 · score 22 · 6.1 km
- August 13, 2026 · score 22 · 11.7 km
- August 3, 2026 · score 28 · 14.9 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 22 out of 100, at 60 % 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) | 22 / 100 |
| Our confidence | 60% |
| Coordinates | 33.1231, -79.0793 |
| Nearest City | Socastee (62 km) |
| Impact Tier | minor |
| Timestamp | 2026-07-11T21:07:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Special Marine Warning_noaa_urn:oid:2.49.0.1.840.0.a7ac20b1ef78a2c063848182c8fd046d |
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; Charleston Harbor; 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 Cape Fear NC to Little River Inlet SC out 20 NM; Coastal waters from Little River Inlet to Murrells Inlet SC out 20 NM; Waters from Surf City NC to Little River Inlet SC from 20 to 60 NM; Waters from Little River Inlet SC to South Santee River SC from 20 to 60 NM |
| Headline | Special Marine Warning issued July 11 at 5:07PM EDT until July 11 at 6:00PM EDT by NWS Wilmington NC |
| Expires | 2026-07-11T18:00:00-04:00 |
| SenderName | NWS Wilmington NC |
| HasExactCoords | true |
| MergedCount | 3 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.a7ac20b1ef78a2c063848182c8fd046dffc0666c.001.1","noaa_urn:oid:2.49.0.1.840.0.5e1a1635b72536567b9ceabccd5d6877cfe648cd.001.1","noaa_urn:oid:2.49.0.1.840.0.aca50d69c53b17e3b6e2b81aa9cf14f2a932dd23.001.1"] |
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 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 22/100 (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.