Right now
The most recent data we hold from NOAA arrived 10 minutes ago, and this point is not in it. We record detections, not passes: an absence is not proof that nothing is there.
Nothing else has been detected within 20 km in the last 24 hours.
This alert expired on 12 May 2026 at 09:16 UTC. It is kept here as a record.
No stronger detection stands among the 11 recorded within 20 km of this point since 9 May 2026 — 10 others scored the same. Another comparable one was recorded here earlier the same day. 4 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Special Marine Warning issued May 12 at 5:06AM EDT until May 12 at 5:15AM EDT by NWS Jacksonville FL
Nearby, since 9 May 2026
- August 8, 2026 · score 22 · 7.8 km
- May 9, 2026 · score 22 · 12.3 km
- June 18, 2026 · score 22 · 25.7 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 62 % 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 | 62% |
| Coordinates | 30.5714, -80.5610 |
| Nearest City | Jacksonville Beach (85 km) |
| Impact Tier | minor |
| Timestamp | 2026-05-12T09:06:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Special Marine Warning_noaa_urn:oid:2.49.0.1.840.0.0a067becced1c4a892b2027b1908d477 |
Score Breakdown
Technical Details
| Event | Special Marine Warning |
| Urgency | Immediate |
| Certainty | Likely |
| AreaDesc | Waters from Altamaha Sound GA to Fernandina Beach FL from 20 to 60 NM; Waters from Fernandina Beach to St. Augustine FL from 20 to 60 NM |
| Headline | Special Marine Warning issued May 12 at 5:06AM EDT until May 12 at 5:15AM EDT by NWS Jacksonville FL |
| Expires | 2026-05-12T05:16:00-04:00 |
| SenderName | NWS Jacksonville FL |
| HasExactCoords | true |
| MergedCount | 2 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.0a067becced1c4a892b2027b1908d477e0608482.001.1","noaa_urn:oid:2.49.0.1.840.0.0a0fd478a5714f935af4c0a5689b41b2ed969e66.001.1"] |
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.
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