Right now
The most recent data we hold from NOAA arrived 16 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 5 September 2026 at 20:45 UTC. It is kept here as a record.
It is the 18th strongest of the 27 detections recorded within 20 km of this point since 15 March 2026. The last comparable one was on 4 September 2026.
What the source measured
NOAA reported: Special Marine Warning issued September 5 at 3:39PM EDT until September 5 at 4:45PM EDT by NWS Melbourne FL
Urban PEI: 223,770 within a heuristic 50 km radius; not unique people.
Nearby, since 15 March 2026
- August 4, 2026 · score 43 · 9.2 km
- June 20, 2026 · score 43 · 14.4 km
- May 9, 2026 · score 43 · 15.2 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 37 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 v4. Rows carrying other versions were judged by different rules and are not directly comparable.
Event Data
| Type | Severe Weather |
| Severity | Medium |
| Calamity Score (ours) | 37 / 100 |
| Legacy data-support index | 0.81/1 |
| Coordinates | 29.0133, -80.6417 |
| Nearest City | Edgewater (25 km) |
| Urban exposure index (PEI) | 223.8K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-09-05T19:57:00.000Z |
| Source | https://api.weather.gov/alerts/urn%3Aoid%3A2.49.0.1.840.0.bde41a38c90c72005487bcc0520a4e65155423fe.001.1 |
Physical priority index · v4 (historical). 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: 2026-09-05T19:57:00.000Z.
First archived: 2026-09-05T20:03:29.575Z. 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; Volusia-Brevard County Line to Sebastian Inlet 0-20 nm |
| Headline | Special Marine Warning issued September 5 at 3:39PM EDT until September 5 at 4:45PM EDT by NWS Melbourne FL |
| Expires | 2026-09-05T16:45:00-04:00 |
| SenderName | NWS Melbourne FL |
| HasExactCoords | true |
| MergedCount | 2 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.bde41a38c90c72005487bcc0520a4e65155423fe.001.1","noaa_urn:oid:2.49.0.1.840.0.a90b142aa041dd004d7590b104e6efc9324db5a9.001.1"] |
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.
Review the area, threshold and delivery channel in your account.
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