This alert expired on 27 May 2026 at 21:01 UTC. It is kept here as a record.
It is the 3rd strongest of the 13 detections recorded within 20 km of this point since 11 May 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 May 27 at 4:51PM EDT until May 27 at 5:00PM EDT by NWS Newport/Morehead City NC
An estimated 67,357 people live within 50 km of this point.
Nearby, since 11 May 2026
- July 12, 2026 · score 39 · 14.1 km
- May 11, 2026 · score 43 · 18.8 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 39 out of 100, at 79 % 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) | 39 / 100 |
| Our confidence | 79% |
| Coordinates | 34.6583, -77.3800 |
| Nearest City | Jacksonville (11 km) |
| Population Exposed | 67.4K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-05-27T20:51:00.000Z |
| Source | https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.8d80f70d4889a620c714cbb674fddc64d120ef2f.001.1 |
Score Breakdown
Technical Details
| Event | Special Marine Warning |
| Urgency | Immediate |
| Certainty | Likely |
| AreaDesc | S of Cape Lookout NC to Surf City NC out to 20 NM |
| Headline | Special Marine Warning issued May 27 at 4:51PM EDT until May 27 at 5:00PM EDT by NWS Newport/Morehead City NC |
| Expires | 2026-05-27T17:01:00-04:00 |
| SenderName | NWS Newport/Morehead City NC |
| HasExactCoords | true |
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 near Jacksonville?
Calamity.live data shows a weather event with CalamityScore 39/100, near Jacksonville (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.