Right now
The most recent data we hold from NOAA arrived 4 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 17 March 2026 at 04:00 UTC. It is kept here as a record.
It is the only one we have recorded within 20 km of this point since 17 March 2026.
What the source measured
NOAA reported: Special Marine Warning issued March 16 at 11:34PM EDT until March 17 at 12:00AM EDT by NWS Key West FL
How we know
Confirmed by 2 independent sources, including NOAA.
Our own score for this event is 22 out of 100, at 63 % confidence.
The score is ours, computed from intensity, exposed population and local history — not the source’s.
Computed under scoring rules v1. Rows carrying other versions were judged by different rules and are not directly comparable.
Event Data
| Type | Severe Weather |
| Severity | Medium |
| Calamity Score (ours) | 22 / 100 |
| Our confidence | 63% |
| Coordinates | 24.9837, -79.9975 |
| Nearest City | Leisure City (72 km) |
| Impact Tier | minor |
| Timestamp | 2026-03-17T03:34:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Special Marine Warning_noaa_urn:oid:2.49.0.1.840.0.f7a187f7c26033850d95ba1852edd729 |
Score Breakdown
Technical Details
| Event | Special Marine Warning |
| Urgency | Immediate |
| Certainty | Likely |
| AreaDesc | Hawk Channel from Ocean Reef to Craig Key out to the reef; Hawk Channel from Craig Key to west end of Seven Mile Bridge out to the reef; Straits of Florida from Ocean Reef to Craig Key out 20 NM; Straits of Florida from Craig Key to west end of Seven Mile Bridge out 20 NM; Straits of Florida from Ocean Reef to Craig Key 20 to 60 NM out; Straits of Florida from Craig Key to west end of Seven Mile Bridge 20 to 60 NM out; 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; Waters from Deerfield Beach to Ocean Reef FL from 20 to 60 NM excluding the territorial waters of Bahamas |
| Headline | Special Marine Warning issued March 16 at 11:34PM EDT until March 17 at 12:00AM EDT by NWS Key West FL |
| Expires | 2026-03-17T00:00:00-04:00 |
| SenderName | NWS Key West FL |
| HasExactCoords | true |
| MergedCount | 3 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.f7a187f7c26033850d95ba1852edd72992ec294e.001.1","noaa_urn:oid:2.49.0.1.840.0.ad52a01d98677c19fd65cfd63ffd7876ed6c42d8.001.1","noaa_urn:oid:2.49.0.1.840.0.59117eb825b799c6d11926c9c7683933751c0703.001.1"] |
| Iem TypeSummary | M |
| Iem Magnitude | 45 |
| Iem Unit | MPH |
| Iem City | 5 SSE Islamorada |
| Iem County | GMZ052 |
| Iem State | FL |
| Iem Wfo | KEY |
| Iem Remark | A southerly wind gust of 39 knots, or 45 mph, was recorded by the XALG WeatherFlow mesonet site at Alligator Reef Light. |
| MergedSources | [{"id":"iem_M_24.850_-80.620_1773714180000","source":"iem","severity":"low","severityValue":25,"timestamp":1773714180000,"latitude":24.85,"longitude":-80.62}] |
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.
Want to know when something happens in this area?
Calamity.live data shows a weather event with CalamityScore 22/100 (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.