This alert expired on 16 March 2026 at 19:30 UTC. It is kept here as a record.
No stronger detection stands among the 12 recorded within 20 km of this point since 16 March 2026 — 10 others scored the same. Another comparable one was recorded here earlier the same day. 2 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Special Marine Warning issued March 16 at 2:39PM EDT until March 16 at 3:30PM EDT by NWS Newport/Morehead City NC
How we know
Confirmed by 2 independent sources, including NOAA.
Our own score for this event is 22 out of 100, at 63 % 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) | 22 / 100 |
| Our confidence | 63% |
| Coordinates | 34.6750, -75.8950 |
| Nearest City | Havelock (95 km) |
| Impact Tier | minor |
| Timestamp | 2026-03-16T18:39:00.000Z |
| Source | https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.77c051eeeced6a83cc85cb2609c59e87fbb08d25.001.1 |
Score Breakdown
Technical Details
| Event | Special Marine Warning |
| Urgency | Immediate |
| Certainty | Likely |
| AreaDesc | S of Cape Hatteras NC to Ocracoke Inlet NC out to 20 nm; S of Ocracoke Inlet NC to Cape Lookout NC out to 20 nm; Waters from Cape Hatteras to Ocracoke Inlet NC from 20 to 40 nm; Waters fromOcracoke Inlet to Cape Lookout NC from 20 to 40 nm |
| Headline | Special Marine Warning issued March 16 at 2:39PM EDT until March 16 at 3:30PM EDT by NWS Newport/Morehead City NC |
| Expires | 2026-03-16T15:30:00-04:00 |
| SenderName | NWS Newport/Morehead City NC |
| HasExactCoords | true |
| Iem TypeSummary | W |
| Iem City | 30 E Cape Lookout Light |
| Iem County | AMZ176 |
| Iem State | NC |
| Iem Wfo | MHX |
| Iem Remark | Mariner reports visible waterspout. Boat location at time of report was 23 mi S Atlantic. Waterspout location based on radar. |
| MergedSources | [{"id":"iem_W_34.550_-76.000_1773686220000","source":"iem","severity":"low","severityValue":25,"timestamp":1773686220000,"latitude":34.55,"longitude":-76}] |
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.
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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.