Right now
The most recent data we hold from NOAA arrived 42 minutes ago, and this point is in it.
2 other detections within 20 km in the last 24 hours, the nearest 10 km from here.
This alert expired on 11 September 2026 at 09:30 UTC. It is kept here as a record.
It is one of only 4 we have recorded within 20 km of this point since 17 March 2026. Another comparable one was recorded here earlier the same day. 2 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Special Marine Warning issued September 11 at 5:01AM EDT until September 11 at 5:30AM EDT by NWS Miami FL
Nearby, since 17 March 2026
- March 17, 2026 · score 22 · 9.5 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 16 out of 100, at 61 % 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) | 16 / 100 |
| Our confidence | 61% |
| Coordinates | 25.0414, -79.9277 |
| Nearest City | Leisure City (72 km) |
| Impact Tier | minor |
| Timestamp | 2026-09-11T09:01:00.000Z |
| Source | https://api.weather.gov/alerts/urn%3Aoid%3A2.49.0.1.840.0.8dba7423935601f6ccf6ff1e16dd17a604e12f39.001.1 |
Score Breakdown
Technical Details
| Event | Special Marine Warning |
| Urgency | Immediate |
| Certainty | Likely |
| AreaDesc | Coastal waters from Deerfield Beach to Ocean Reef FL out 20 NM; Waters from Deerfield Beach to Ocean Reef FL from 20 to 60 NM excluding the territorial waters of Bahamas; Hawk Channel from Ocean Reef to Craig Key out to the reef; Straits of Florida from Ocean Reef to Craig Key out 20 NM; Straits of Florida from Ocean Reef to Craig Key 20 to 60 NM out |
| Headline | Special Marine Warning issued September 11 at 5:01AM EDT until September 11 at 5:30AM EDT by NWS Miami FL |
| Expires | 2026-09-11T05:30:00-04:00 |
| SenderName | NWS Miami FL |
| HasExactCoords | true |
| MergedCount | 2 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.8dba7423935601f6ccf6ff1e16dd17a604e12f39.001.1","noaa_urn:oid:2.49.0.1.840.0.dc3888c5566037b21b181453a7514883ece83610.001.1"] |
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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