This alert expired on 16 March 2026 at 00:00 UTC. It is kept here as a record.
No stronger detection stands among the 27 recorded within 20 km of this point since 15 March 2026 — 20 others scored the same. Another comparable one was recorded here earlier the same day. One more was recorded here in the fortnight before it.
What the source measured
NOAA reported: Special Marine Warning issued March 15 at 6:53PM EDT until March 15 at 8:00PM EDT by NWS Jacksonville FL
An estimated 197,781 people live within 50 km of this point.
Nearby, since 15 March 2026
- May 12, 2026 · score 43 · 5.3 km
- July 14, 2026 · score 43 · 8.1 km
- March 15, 2026 · score 43 · 15.0 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 43 out of 100, at 77 % 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) | 43 / 100 |
| Our confidence | 77% |
| Coordinates | 29.4099, -80.6627 |
| Nearest City | Ormond Beach (41 km) |
| Population Exposed | 197.8K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-03-15T22:53:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Special Marine Warning_noaa_urn:oid:2.49.0.1.840.0.f847e709224bbf9a321b629932378251 |
Score Breakdown
Technical Details
| Event | Special Marine Warning |
| Urgency | Immediate |
| Certainty | Likely |
| AreaDesc | Waters from St. Augustine to Flagler Beach FL from 20 to 60 NM; Flagler Beach to Volusia-Brevard County Line 0-20 nm; Volusia-Brevard County Line to Sebastian Inlet 0-20 nm; Flagler Beach to Volusia-Brevard County Line 20-60 nm; Volusia-Brevard County Line to Sebastian Inlet 20-60 nm |
| Headline | Special Marine Warning issued March 15 at 6:53PM EDT until March 15 at 8:00PM EDT by NWS Jacksonville FL |
| Expires | 2026-03-15T20:00:00-04:00 |
| SenderName | NWS Jacksonville FL |
| HasExactCoords | true |
| MergedCount | 2 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.f847e709224bbf9a321b62993237825100c096b3.001.1","noaa_urn:oid:2.49.0.1.840.0.20c049217725ee4d1874af7955d80d0b790ad985.001.1"] |
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 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.
Want to know when something happens in this area?
Calamity.live data shows a weather event with CalamityScore 43/100 (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.