Right now
The most recent data we hold from NOAA arrived 22 minutes ago, and this point is not in it. We record detections, not passes: an absence is not proof that nothing is there.
This alert expired on 18 June 2026 at 23:45 UTC. It is kept here as a record.
What the source measured
NOAA reported: Special Marine Warning issued June 18 at 6:38PM EDT until June 18 at 7:45PM EDT by NWS Melbourne FL
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.
This is our versioned heuristic index, not source severity or a calibrated probability. Urban PEI does not count unique people.
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 |
| Legacy data-support index | 0.59/1 |
| Coordinates | 30.7866, -80.8448 |
| Nearest City | St. Marys (68 km) |
| Urban exposure index (PEI) | 0 within 50 km |
| Impact Tier | minor |
| Timestamp | 2026-06-18T22:38:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Special Marine Warning_noaa_urn:oid:2.49.0.1.840.0.3b3a3f82be74acaf48c628a9338034c1 |
Physical priority index · v1. Heuristic priority, not calibrated probability, predictive accuracy or damage. The legacy data-support index combines assigned source support and field availability. Urban PEI is distance-weighted and does not count unique people; zero does not establish that nobody is present. Model cards.
Source and revision timeline
Source: noaa. Occurrence: 2026-06-18T22:38:00.000Z.
First archived: 2026-06-18T22:46:53.929Z. Material modification: not recorded.
Retained revisions are prospective; earlier versions may be unavailable. No revision entry does not prove that a record never changed.
Score Breakdown
Technical Details
| Event | Special Marine Warning |
| Urgency | Immediate |
| Certainty | Likely |
| AreaDesc | Flagler Beach to Volusia-Brevard County Line 0-20 nm; 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; Coastal waters from St. Augustine to Flagler Beach FL out 20 NM; Waters from St. Augustine to Flagler Beach FL from 20 to 60 NM and 3 more areas |
| Headline | Special Marine Warning issued June 18 at 6:38PM EDT until June 18 at 7:45PM EDT by NWS Melbourne FL |
| Expires | 2026-06-18T19:45:00-04:00 |
| SenderName | NWS Melbourne FL |
| HasExactCoords | true |
| MergedCount | 6 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.3b3a3f82be74acaf48c628a9338034c180e3c261.001.1","noaa_urn:oid:2.49.0.1.840.0.5d4393d0913ee6a8339598653d276da22318e813.001.1","noaa_urn:oid:2.49.0.1.840.0.26883d9581264699d4b7a1bda265cbdeae4cbe93.002.1","noaa_urn:oid:2.49.0.1.840.0.c7a97151fd37b5ec7d4eba64a11771a048479430.001.1","noaa_urn:oid:2.49.0.1.840.0.1ddc6e90d77de969024f0ac82331176bb000e025.001.1","noaa_urn:oid:2.49.0.1.840.0.01a8a479658e34f373147de94acb65aa230437e8.001.1"] |
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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