Right now
The most recent data we hold from NOAA arrived 6 minutes ago, and this point is in it.
10 other detections within 20 km in the last 24 hours, the nearest 1 km from here.
This alert expired on 12 September 2026 at 21:15 UTC. It is kept here as a record.
It is the 17th strongest of the 43 detections recorded within 20 km of this point since 17 March 2026. Another comparable one was recorded here earlier the same day. 15 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Special Marine Warning issued September 12 at 5:05PM EDT until September 12 at 5:15PM EDT by NWS Key West FL
An estimated 25,755 people live within 50 km of this point.
Nearby, since 17 March 2026
- July 20, 2026 · score 34 · 1.9 km
- September 12, 2026 · score 28 · 4.0 km
- September 2, 2026 · score 28 · 7.4 km
How we know
Confirmed by 2 independent sources, including NOAA.
Our own score for this event is 28 out of 100, at 85 % 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) | 28 / 100 |
| Our confidence | 85% |
| Coordinates | 24.7190, -81.4240 |
| Nearest City | Key West (40 km) |
| Population Exposed | 25.8K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-09-12T21:05:00.000Z |
| Source | https://api.weather.gov/alerts/urn%3Aoid%3A2.49.0.1.840.0.a31b4845e3bf6ab39836fb86c6c13bb6f1545e35.001.1 |
Score Breakdown
Technical Details
| Event | Special Marine Warning |
| Urgency | Immediate |
| Certainty | Likely |
| AreaDesc | Gulf of America from West End of Seven Mile Bridge to Halfmoon Shoal out to 5 Fathoms; Hawk Channel from west end of Seven Mile Bridge to Halfmoon Shoal out to the reef; Bayside and Gulfside from Craig Key to West End of Seven Mile Bridge; Gulf of America from West End of Seven Mile Bridge to Halfmoon Shoal out to 5 Fathoms |
| Headline | Special Marine Warning issued September 12 at 5:05PM EDT until September 12 at 5:15PM EDT by NWS Key West FL |
| Expires | 2026-09-12T17:15:00-04:00 |
| SenderName | NWS Key West FL |
| HasExactCoords | true |
| MergedCount | 2 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.a31b4845e3bf6ab39836fb86c6c13bb6f1545e35.001.1","noaa_urn:oid:2.49.0.1.840.0.e2768b66d26d3503b45aa92f451cb98f6c126205.001.1"] |
| Iem TypeSummary | W |
| Iem City | 2 WSW Big Torch Key |
| Iem County | GMZ035 |
| Iem State | FL |
| Iem Wfo | KEY |
| Iem Remark | A member of the public reported a likely mature waterspout to the north of Cudjoe Key. The report came in through social media with a photo. The visible portion of the condensation funnel extended fro |
| MergedSources | [{"id":"iem_W_24.720_-81.470_1789239360000","source":"iem","severity":"low","severityValue":25,"timestamp":1789239360000,"latitude":24.72,"longitude":-81.47}] |
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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