Right now
The most recent data we hold from NOAA arrived 7 hours 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 20:00 UTC. It is kept here as a record.
It is the 15th strongest of the 19 detections recorded within 20 km of this point since 11 May 2026. Another comparable one was recorded here earlier the same day. 9 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Special Marine Warning issued May 11 at 2:53PM EDT until May 11 at 4:00PM EDT by NWS Wilmington NC
Nearby, since 11 May 2026
- May 30, 2026 · score 32 · 2.7 km
- July 12, 2026 · score 43 · 9.3 km
- May 30, 2026 · score 37 · 14.0 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.
This is our versioned heuristic index, not source severity or a calibrated probability. Urban PEI does not count unique people.
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 |
| Legacy data-support index | 0.61/1 |
| Coordinates | 34.2950, -77.3999 |
| Nearest City | Jacksonville (51 km) |
| Urban exposure index (PEI) | 0 within 50 km |
| Impact Tier | minor |
| Timestamp | 2026-05-11T18:53:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Special Marine Warning_noaa_urn:oid:2.49.0.1.840.0.08a4e776aac4b41f466520ddb65997db |
Physical priority index · v1. Heuristic priority, not calibrated probability, predictive accuracy or damage. The legacy data-support index combines assigned source support and field availability. Urban PEI is distance-weighted and does not count unique people; zero does not establish that nobody is present. Model cards.
Source and revision timeline
Source: noaa. Occurrence: 2026-05-11T18:53:00.000Z.
First archived: 2026-05-11T19:03:16.388Z. Material modification: not recorded.
Retained revisions are prospective; earlier versions may be unavailable. No revision entry does not prove that a record never changed.
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; 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; S of Ocracoke Inlet NC to Cape Lookout NC out to 20 NM; S of Cape Lookout NC to Surf City NC out to 20 NM; Neuse and Bay Rivers and 2 more areas |
| Headline | Special Marine Warning issued May 11 at 2:53PM EDT until May 11 at 4:00PM EDT by NWS Wilmington NC |
| Expires | 2026-05-11T16:00:00-04:00 |
| SenderName | NWS Wilmington NC |
| HasExactCoords | true |
| MergedCount | 6 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.08a4e776aac4b41f466520ddb65997db7ddb183a.001.1","noaa_urn:oid:2.49.0.1.840.0.dc685bf662a1373692876eade38f35aa495ed24f.001.1","noaa_urn:oid:2.49.0.1.840.0.7d64678bb0257be64b32edd94211d649f02b7349.001.1","noaa_urn:oid:2.49.0.1.840.0.5b31393f64f11b7479366254730c04777c6de902.001.1","noaa_urn:oid:2.49.0.1.840.0.79dcfa140ea65fc508d99ea21ab128542f58d322.001.1","noaa_urn:oid:2.49.0.1.840.0.081d1bd872d1f874a7ea70208961ad2b3441470a.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.
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