This alert expired on 16 March 2026 at 22:15 UTC. It is kept here as a record.
It is the 35th strongest of the 55 detections recorded within 20 km of this point since 16 March 2026.
What the source measured
NOAA reported: Special Marine Warning issued March 16 at 5:18PM EDT until March 16 at 6:15PM EDT by NWS Mount Holly NJ
Nearby, since 16 March 2026
- July 22, 2026 · score 34 · 10.2 km
- July 21, 2026 · score 67 · 15.7 km
- July 18, 2026 · score 43 · 15.7 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 58 % 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 | 58% |
| Coordinates | 38.9252, -74.8952 |
| Nearest City | Millville (54 km) |
| Impact Tier | minor |
| Timestamp | 2026-03-16T21:18:00.000Z |
| Source | https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.bdc9cdc0bb08a550c77485a5dfd3a2c5fac9b047.001.1 |
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 Little Egg Inlet to Great Egg Inlet NJ out 20 nm; 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 out 20 to 40 nm; Waters from Cape May NJ to Fenwick Island DE out 20 to 40 nm |
| Headline | Special Marine Warning issued March 16 at 5:18PM EDT until March 16 at 6:15PM EDT by NWS Mount Holly NJ |
| Expires | 2026-03-16T18:15:00-04:00 |
| 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 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.