Right now
The most recent data we hold from NOAA arrived 78 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 14 May 2026 at 03:15 UTC. It is kept here as a record.
It is the 62nd strongest of the 157 detections recorded within 20 km of this point since 11 March 2026. The last comparable one was on 5 April 2026.
What the source measured
NOAA reported: Special Marine Warning issued May 13 at 10:16PM EDT until May 13 at 11:15PM EDT by NWS Mount Holly NJ
An estimated 437,352 people live within 50 km of this point.
Nearby, since 11 March 2026
- June 12, 2026 · score 37 · 3.0 km
- August 27, 2026 · score 43 · 6.8 km
- July 28, 2026 · score 48 · 8.8 km
How we know
Confirmed by 2 independent sources, including NOAA.
Our own score for this event is 43 out of 100, at 86 % 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 | 86% |
| Coordinates | 39.3835, -75.2465 |
| Nearest City | Bridgeton (5 km) |
| Population Exposed | 437.4K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-05-14T02:16:00.000Z |
| Source | https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.41b77541f72be23632fd5cefbf417d4d2d9d722f.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 |
| Headline | Special Marine Warning issued May 13 at 10:16PM EDT until May 13 at 11:15PM EDT by NWS Mount Holly NJ |
| Expires | 2026-05-13T23:15:00-04:00 |
| SenderName | NWS Mount Holly NJ |
| HasExactCoords | true |
| Iem TypeSummary | M |
| Iem Magnitude | 38 |
| Iem Unit | MPH |
| Iem City | New Castle County Airpo |
| Iem County | New Castle |
| Iem State | DE |
| Iem Wfo | PHI |
| MergedSources | [{"id":"iem_M_39.680_-75.610_1778724960000","source":"iem","severity":"low","severityValue":25,"timestamp":1778724960000,"latitude":39.68,"longitude":-75.61}] |
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 Bridgeton?