Right now
The most recent data we hold from NOAA arrived 6 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 28 May 2026 at 23:45 UTC. It is kept here as a record.
It is the 4th strongest of the 12 detections recorded within 20 km of this point since 28 May 2026.
What the source measured
NOAA reported: Special Marine Warning issued May 28 at 6:59PM EDT until May 28 at 7:45PM EDT by NWS Wilmington NC
An estimated 46,614 people live within 50 km of this point.
Nearby, since 28 May 2026
- August 1, 2026 · score 34 · 2.2 km
- August 12, 2026 · score 39 · 15.7 km
- September 6, 2026 · score 32 · 16.5 km
How we know
Confirmed by 5 independent sources, including NOAA.
Our own score for this event is 34 out of 100, at 88 % 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) | 34 / 100 |
| Our confidence | 88% |
| Coordinates | 33.8467, -78.4300 |
| Nearest City | North Myrtle Beach (23 km) |
| Population Exposed | 46.6K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-05-28T22:59:00.000Z |
| Source | https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.ddcfffe491faa69aa508bdcbc3bb3e0d27d36b08.001.1 |
Score Breakdown
Technical Details
| Event | Special Marine Warning |
| Urgency | Immediate |
| Certainty | Likely |
| AreaDesc | 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 |
| Headline | Special Marine Warning issued May 28 at 6:59PM EDT until May 28 at 7:45PM EDT by NWS Wilmington NC |
| Expires | 2026-05-28T19:45:00-04:00 |
| SenderName | NWS Wilmington NC |
| HasExactCoords | true |
| Iem TypeSummary | M |
| Iem Magnitude | 53 |
| Iem Unit | mph |
| Iem City | 1 ENE Wrightsville Beac |
| Iem County | AMZ250 |
| Iem State | NC |
| Iem Wfo | ILM |
| MergedSources | [{"id":"iem_G_34.280_-77.920_1779994620000","source":"iem","severity":"low","severityValue":25,"timestamp":1779994620000,"latitude":34.28,"longitude":-77.92},{"id":"iem_D_34.270_-77.810_1779995400000","source":"iem","severity":"low","severityValue":25,"timestamp":1779995400000,"latitude":34.27,"longitude":-77.81},{"id":"iem_D_34.300_-77.830_1779995400000","source":"iem","severity":"low","severityValue":25,"timestamp":1779995400000,"latitude":34.3,"longitude":-77.83},{"id":"iem_M_34.210_-77.790_1779995520000","source":"iem","severity":"low","severityValue":25,"timestamp":1779995520000,"latitude":34.21,"longitude":-77.79}] |
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.
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