Right now
The most recent data we hold from NOAA arrived 5 minutes ago, and this point is in it.
Nothing else has been detected within 20 km in the last 24 hours.
This alert expired on 11 September 2026 at 21:00 UTC. It is kept here as a record.
It is the 47th strongest of the 71 detections recorded within 20 km of this point since 15 March 2026. The last comparable one was on 6 September 2026. One more was recorded here in the fortnight before it.
What the source measured
NOAA reported: Special Marine Warning issued September 11 at 4:14PM EDT until September 11 at 5:00PM EDT by NWS Melbourne FL
An estimated 332,435 people live within 50 km of this point.
Nearby, since 15 March 2026
- August 4, 2026 · score 43 · 3.8 km
- May 10, 2026 · score 43 · 4.3 km
- June 2, 2026 · score 43 · 6.2 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, at 80 % confidence.
The score is ours, computed from intensity, exposed population and local history — not the source’s.
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 |
| Our confidence | 80% |
| Coordinates | 29.2540, -80.9020 |
| Nearest City | Daytona Beach (12 km) |
| Population Exposed | 332.4K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-09-11T20:14:00.000Z |
| Source | https://api.weather.gov/alerts/urn%3Aoid%3A2.49.0.1.840.0.d171b6f53c0784f1d267105cba2df9488ebd660e.001.1 |
Score Breakdown
Technical Details
| Event | Special Marine Warning |
| Urgency | Immediate |
| Certainty | Likely |
| AreaDesc | Flagler Beach to Volusia-Brevard County Line 0-20 nm |
| Headline | Special Marine Warning issued September 11 at 4:14PM EDT until September 11 at 5:00PM EDT by NWS Melbourne FL |
| Expires | 2026-09-11T17:00:00-04:00 |
| SenderName | NWS Melbourne FL |
| HasExactCoords | true |
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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