Right now
The most recent data we hold from NOAA arrived 7 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 03:15 UTC. It is kept here as a record.
It is the 4th strongest of the 14 detections 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 March 16 at 11:02PM EDT until March 16 at 11:15PM EDT by NWS Key West FL
Nearby, since 17 March 2026
- June 10, 2026 · score 22 · 16.0 km
- July 11, 2026 · score 43 · 16.5 km
How we know
Confirmed by 3 independent sources, including NOAA.
Our own score for this event is 22 out of 100, at 68 % 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 | 68% |
| Coordinates | 25.0445, -80.6520 |
| Nearest City | Homestead (50 km) |
| Impact Tier | minor |
| Timestamp | 2026-03-17T03:02:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Special Marine Warning_noaa_urn:oid:2.49.0.1.840.0.28c0dd2914422d207306544e79a78b57 |
Score Breakdown
Technical Details
| Event | Special Marine Warning |
| Urgency | Immediate |
| Certainty | Likely |
| AreaDesc | Bayside and Gulfside from Craig Key to West End of Seven Mile Bridge; Gulf of America from East Cape Sable to Chokoloskee 20 to 60 NM out and beyond 5 fathoms; Gulf of America including Dry Tortugas and Rebecca Shoal Channel; Gulf of America from West End of Seven Mile Bridge to Halfmoon Shoal out to 5 Fathoms; Hawk Channel from Craig Key to west end of Seven Mile Bridge out to the reef; Hawk Channel from west end of Seven Mile Bridge to Halfmoon Shoal out to the reef; Straits of Florida from west end of Seven Mile Bridge to south of Halfmoon Shoal out 20 NM; Straits of Florida from Halfmoon Shoal to 20 NM west of Dry Tortugas out 20 NM; 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; Straits of Florida from west end of Seven Mile Bridge to south of Halfmoon Shoal out 20 NM; Straits of Florida from west end of Seven Mile Bridge to south of Halfmoon Shoal 20 to 60 NM out; Florida Bay including Barnes Sound, Blackwater Sound, and Buttonwood Sound; 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 and 2 more areas |
| Headline | Special Marine Warning issued March 16 at 11:02PM EDT until March 16 at 11:15PM EDT by NWS Key West FL |
| Expires | 2026-03-16T23:15:00-04:00 |
| SenderName | NWS Key West FL |
| HasExactCoords | true |
| MergedCount | 5 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.28c0dd2914422d207306544e79a78b571dda3316.001.1","noaa_urn:oid:2.49.0.1.840.0.a7d2c494b709d98b6287f3317c49b3d4f9532958.001.1","noaa_urn:oid:2.49.0.1.840.0.a0b7fd5acf016812a4bdf398aa9c15d5b014d345.001.1","noaa_urn:oid:2.49.0.1.840.0.d2072044c3ab626ce14d3b8589057a18bd2b7515.001.1","noaa_urn:oid:2.49.0.1.840.0.38fe81d8bfd45eaaddeb8a6855d1a9d085880e2b.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_24.840_-80.860_1773714000000","source":"iem","severity":"low","severityValue":25,"timestamp":1773714000000,"latitude":24.84,"longitude":-80.86},{"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.