Right now
The most recent data we hold from NOAA arrived 5 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 12 June 2026 at 03:15 UTC. It is kept here as a record.
It is the 135th strongest of the 181 detections recorded within 20 km of this point since 17 March 2026. The last comparable one was on 10 June 2026. 4 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Special Marine Warning issued June 11 at 9:50PM EDT until June 11 at 11:15PM EDT by NWS Mount Holly NJ
Urban PEI: 231,976 within a heuristic 50 km radius; not unique people.
Nearby, since 17 March 2026
- August 27, 2026 · score 43 · 8.7 km
- May 14, 2026 · score 43 · 9.7 km
- June 27, 2026 · score 43 · 16.8 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 37 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) | 37 / 100 |
| Legacy data-support index | 0.80/1 |
| Coordinates | 39.2600, -75.3167 |
| Nearest City | Bridgeton (20 km) |
| Urban exposure index (PEI) | 232.0K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-06-12T01:50:00.000Z |
| Source | https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.d6ed51e4a7e4b94a037778acd3858ce6c7af5495.001.1 |
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: 2026-06-12T01:50:00.000Z.
First archived: 2026-06-12T02:12:37.111Z. 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 | 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 Cape May NJ to Cape Henlopen DE out 20 NM |
| Headline | Special Marine Warning issued June 11 at 9:50PM EDT until June 11 at 11:15PM EDT by NWS Mount Holly NJ |
| Expires | 2026-06-11T23:15:00-04:00 |
| 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.
Review the area, threshold and delivery channel in your account.
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