Right now
The most recent data we hold from NOAA arrived 3 hours 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 1 June 2026 at 16:15 UTC. It is kept here as a record.
No stronger detection stands among the 28 recorded within 20 km of this point since 17 March 2026 — 18 others scored the same. 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 June 1 at 11:47AM EDT until June 1 at 12:15PM EDT by NWS Key West FL
Nearby, since 17 March 2026
- September 10, 2026 · score 16 · 10.0 km
- June 10, 2026 · score 22 · 23.4 km
How we know
2 recorded sources include NOAA; independence is not established by this count.
Our own score for this event is 22 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 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 |
| Legacy data-support index | 0.66/1 |
| Coordinates | 24.8529, -80.6910 |
| Nearest City | Homestead (72 km) |
| Urban exposure index (PEI) | 0 within 50 km |
| Impact Tier | minor |
| Timestamp | 2026-06-01T15:47:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Special Marine Warning_noaa_urn:oid:2.49.0.1.840.0.807a0da3991981d07971e448c3d81f14 |
Physical priority index · v1. 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: 2026-06-01T15:47:00.000Z.
First archived: 2026-06-01T15:57:39.218Z. Material modification: not recorded.
Retained revisions are prospective; earlier versions may be unavailable. No revision entry does not prove that a record never changed.
Score Breakdown
Technical Details
| Event | Special Marine Warning |
| Urgency | Immediate |
| Certainty | Likely |
| AreaDesc | Florida Bay including Barnes Sound, Blackwater Sound, and Buttonwood Sound; Bayside and Gulfside from Craig Key to West End of Seven Mile Bridge; 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; 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 |
| Headline | Special Marine Warning issued June 1 at 11:47AM EDT until June 1 at 12:15PM EDT by NWS Key West FL |
| Expires | 2026-06-01T12:15:00-04:00 |
| SenderName | NWS Key West FL |
| HasExactCoords | true |
| MergedCount | 2 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.807a0da3991981d07971e448c3d81f147ab51a3f.001.1","noaa_urn:oid:2.49.0.1.840.0.e754ba85d76de84585d55f6e27190e69803e8582.001.1"] |
| Iem TypeSummary | W |
| Iem City | 5 S Islamorada |
| Iem County | GMZ042 |
| Iem State | FL |
| Iem Wfo | KEY |
| Iem Remark | A pair of waterspouts were reported by a member of the public at approximately 1110 AM EDT. The waterspouts were located east southeast of Lower Matecumbe Key. Both waterspouts developed visible spray |
| MergedSources | [{"id":"iem_W_24.850_-80.630_1780326600000","source":"iem","severity":"low","severityValue":25,"timestamp":1780326600000,"latitude":24.85,"longitude":-80.63}] |
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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