This alert expired on 7 June 2026 at 02:45 UTC. It is kept here as a record.
No stronger detection stands among the 12 recorded within 20 km of this point since 17 March 2026 — 5 others scored the same. The last comparable one was on 17 March 2026.
What the source measured
NOAA reported: Special Marine Warning issued June 6 at 9:51PM EDT until June 6 at 10:45PM EDT by NWS Mount Holly NJ
Nearby, since 17 March 2026
- July 22, 2026 · score 22 · 18.0 km
- June 11, 2026 · score 16 · 19.7 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 22 out of 100, at 60 % 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) | 22 / 100 |
| Our confidence | 60% |
| Coordinates | 38.5867, -74.7350 |
| Nearest City | Salisbury (79 km) |
| Impact Tier | minor |
| Timestamp | 2026-06-07T01:51:00.000Z |
| Source | https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.16a4c3d283b7b0e5b1c9608554577fe261abbb68.001.1 |
Score Breakdown
Technical Details
| Event | Special Marine Warning |
| Urgency | Immediate |
| Certainty | Likely |
| AreaDesc | 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; Coastal waters from Cape May NJ to Cape Henlopen DE out 20 NM; Coastal waters from Cape Henlopen to Fenwick Island DE out 20 NM; Waters from Great Egg Inlet NJ to Cape May NJ from 20 to 60 NM; Waters from Cape May NJ to Fenwick Island DE from 20 to 60 NM |
| Headline | Special Marine Warning issued June 6 at 9:51PM EDT until June 6 at 10:45PM EDT by NWS Mount Holly NJ |
| Expires | 2026-06-06T22:45:00-04:00 |
| 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 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.
Want to know when something happens in this area?
Calamity.live data shows a weather event with CalamityScore 22/100 (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.