Right now
The most recent data we hold from NOAA arrived 2 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 May 2026 at 21:45 UTC. It is kept here as a record.
No stronger detection stands among the 6 recorded within 20 km of this point since 11 May 2026 — 2 others scored the same.
What the source measured
NOAA reported: Special Marine Warning issued May 11 at 5:11PM EDT until May 11 at 5:45PM EDT by NWS Wilmington NC
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 61 % 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 | 61% |
| Coordinates | 33.3378, -77.5751 |
| Nearest City | Wilmington (106 km) |
| Impact Tier | minor |
| Timestamp | 2026-05-11T21:11:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Special Marine Warning_noaa_urn:oid:2.49.0.1.840.0.29956b9bed22e7740952d18ff29c6741 |
Score Breakdown
Technical Details
| Event | Special Marine Warning |
| Urgency | Immediate |
| Certainty | Likely |
| AreaDesc | Waters from Surf City NC to Little River Inlet SC from 20 to 60 NM; Waters from Cape Lookout to Surf City NC from 20 to 60 NM; 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 May 11 at 5:11PM EDT until May 11 at 5:45PM EDT by NWS Wilmington NC |
| Expires | 2026-05-11T17:45:00-04:00 |
| SenderName | NWS Wilmington NC |
| HasExactCoords | true |
| MergedCount | 3 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.29956b9bed22e7740952d18ff29c67414f722945.001.1","noaa_urn:oid:2.49.0.1.840.0.2816e45f2a9dd380989efe3fa9eff16d21a5ce22.001.1","noaa_urn:oid:2.49.0.1.840.0.71bb550551e2d1433c57bcd39d7070a21d2acc90.001.1"] |
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.