This alert expired on 13 June 2026 at 03:15 UTC. It is kept here as a record.
It is the 10th strongest of the 27 detections recorded within 20 km of this point since 16 March 2026. The last comparable one was on 19 April 2026.
What the source measured
NOAA reported: Special Marine Warning issued June 12 at 10:15PM EDT until June 12 at 11:15PM EDT by NWS Mount Holly NJ
An estimated 739,949 people live within 50 km of this point.
Nearby, since 16 March 2026
- July 10, 2026 · score 48 · 7.6 km
- July 27, 2026 · score 52 · 10.9 km
- July 19, 2026 · score 52 · 11.4 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 48 out of 100, at 81 % confidence.
The score is ours, computed from intensity, exposed population and local history — not the source’s.
Event Data
| Type | Severe weather |
| Severity | medium |
| Calamity Score (ours) | 48 / 100 |
| Our confidence | 81% |
| Coordinates | 37.2406, -75.9477 |
| Nearest City | East Hampton (41 km) |
| Population Exposed | 739.9K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-06-13T02:15:00.000Z |
Score Breakdown
Technical Details
| Event | Special Marine Warning |
| Urgency | Immediate |
| Certainty | Likely |
| AreaDesc | Coastal waters from Cape Henlopen to Fenwick Island DE out 20 NM; Chesapeake Bay from New Point Comfort to Little Creek VA; James River from JRB to HRBT, Including the Elizabeth River; Alligator River; Albemarle Sound |
| Headline | Special Marine Warning issued June 12 at 10:15PM EDT until June 12 at 11:15PM EDT by NWS Mount Holly NJ |
| Expires | 2026-06-12T23:15:00-04:00 |
| SenderName | NWS Mount Holly NJ |
| HasExactCoords | true |
| MergedCount | 3 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.e33eb93c71a7e0b27d123ec4a7a20ecd86fd3c40.001.1","noaa_urn:oid:2.49.0.1.840.0.7cc01fb5f8d6ea0bc6ac28038ca2be7c6c3c0d91.001.1","noaa_urn:oid:2.49.0.1.840.0.732c1c66ad2a9cd9737f7e0ed3e145373356810b.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 10 February 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.
Calamity.live data shows a weather event with CalamityScore 48/100, near East Hampton (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 191 scientific monitoring sources.