Right now
The most recent data we hold from NOAA arrived 9 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 27 May 2026 at 17:00 UTC. It is kept here as a record.
It is the 8th strongest of the 96 detections recorded within 20 km of this point since 17 March 2026. The last comparable one was on 20 May 2026. 4 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Special Marine Warning issued May 27 at 11:24AM EDT until May 27 at 1:00PM EDT by NWS Mount Holly NJ
An estimated 230,820 people live within 50 km of this point.
Nearby, since 17 March 2026
- May 14, 2026 · score 43 · 3.7 km
- August 3, 2026 · score 43 · 14.0 km
- August 27, 2026 · score 43 · 14.3 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 43 out of 100, at 81 % 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) | 43 / 100 |
| Our confidence | 81% |
| Coordinates | 39.2576, -75.1648 |
| Nearest City | Millville (19 km) |
| Population Exposed | 230.8K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-05-27T15:24:00.000Z |
| Source | https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.bfdb10c697bd170d8dc27b63b0f79c123de1ea70.001.1 |
Score Breakdown
Technical Details
| Event | Special Marine Warning |
| Urgency | Immediate |
| Certainty | Likely |
| AreaDesc | Delaware Bay waters north of East Point NJ to Slaughter Beach DE; Delaware Bay waters south of East Point NJ to Slaughter Beach DE; Coastal waters from Great Egg Inlet to Cape May NJ out 20 NM |
| Headline | Special Marine Warning issued May 27 at 11:24AM EDT until May 27 at 1:00PM EDT by NWS Mount Holly NJ |
| Expires | 2026-05-27T13:00:00-04:00 |
| SenderName | NWS Mount Holly NJ |
| 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 Millville?
Calamity.live data shows a weather event with CalamityScore 43/100, near Millville (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.