Right now
The most recent data we hold from NOAA arrived 1 minute 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 29 September 2026 at 13:00 UTC. It is kept here as a record.
It is the only one we have recorded within 20 km of this point since 18 May 2026. The last comparable one was on 10 September 2026.
What the source measured
NOAA reported: Special Marine Warning issued September 29 at 7:56AM EDT until September 29 at 9:00AM EDT by NWS Miami FL
Urban PEI: 137,818 within a heuristic 50 km radius; not unique people.
Nearby, since 18 May 2026
- July 17, 2026 · 4.6 km
- July 17, 2026 · 13.1 km
- July 18, 2026 · 17.2 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 v5. 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 | 0.80/1 |
| Coordinates | 25.9360, -81.8960 |
| Nearest City | Marco Island (18 km) |
| Urban exposure index (PEI) | 137.8K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-09-29T11:56:00.000Z |
| Source | https://api.weather.gov/alerts/urn%3Aoid%3A2.49.0.1.840.0.a013fb3e367f0f61784e01fa2b799d428eeaa7dc.001.1 |
Physical priority index · v5. 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: 2026-09-29T11:56:00.000Z.
First archived: 2026-09-29T12:01:55.593Z. Material modification: not recorded.
Retained revisions are prospective; earlier versions may be unavailable. No revision entry does not prove that a record never changed.
2 retained revisions changed source fields this page does not show; the index, severity and version stayed the same.
Score Breakdown
Technical Details
| Event | Special Marine Warning |
| MessageId | urn:oid:2.49.0.1.840.0.a013fb3e367f0f61784e01fa2b799d428eeaa7dc.001.1 |
| Urgency | Immediate |
| Certainty | Likely |
| AreaDesc | Coastal waters from Chokoloskee to Bonita Beach FL out 20 NM |
| Headline | Special Marine Warning issued September 29 at 7:56AM EDT until September 29 at 9:00AM EDT by NWS Miami FL |
| Expires | 2026-09-29T09:00:00-04:00 |
| SenderName | NWS Miami 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.
Review the area, threshold and delivery channel in your account.
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