Right now
The most recent data we hold from NOAA arrived 38 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 4 August 2026 at 02:45 UTC. It is kept here as a record.
It is the 2nd strongest of the 7 detections recorded within 20 km of this point since 17 March 2026. The last comparable one was on 17 March 2026.
What the source measured
NOAA reported: Special Marine Warning issued August 3 at 9:39PM EDT until August 3 at 10:45PM EDT by NWS Key West FL
Nearby, since 17 March 2026
- August 4, 2026 · score 34 · 17.5 km
How we know
5 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 | 0.71/1 |
| Coordinates | 24.4420, -82.4040 |
| Nearest City | Key West (64 km) |
| Urban exposure index (PEI) | 0 within 50 km |
| Impact Tier | minor |
| Timestamp | 2026-08-04T01:39:00.000Z |
| Source | https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.fd6359efaa9f8f8a18038fa262accd4c9b865c2f.001.1 |
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: 2026-08-04T01:39:00.000Z.
First archived: 2026-08-04T02:37:53.765Z. 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 | 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 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 |
| Headline | Special Marine Warning issued August 3 at 9:39PM EDT until August 3 at 10:45PM EDT by NWS Key West FL |
| Expires | 2026-08-03T22:45:00-04:00 |
| SenderName | NWS Key West FL |
| HasExactCoords | true |
| Iem TypeSummary | M |
| Iem Magnitude | 40 |
| Iem Unit | MPH |
| Iem City | Boca Chica |
| Iem County | Monroe |
| Iem State | FL |
| Iem Wfo | KEY |
| Iem Remark | A SE wind gust of 35 knots, or 40 mph, was recorded by the KNQX ASOS at Boca Chica - NAS Key West. |
| MergedSources | [{"id":"iem_W_24.530_-81.720_1785798960000","source":"iem","severity":"low","severityValue":25,"timestamp":1785798960000,"latitude":24.53,"longitude":-81.72},{"id":"iem_M_24.460_-81.880_1785803400000","source":"iem","severity":"low","severityValue":25,"timestamp":1785803400000,"latitude":24.46,"longitude":-81.88},{"id":"iem_M_24.560_-81.750_1785795180000","source":"iem","severity":"low","severityValue":25,"timestamp":1785795180000,"latitude":24.56,"longitude":-81.75},{"id":"iem_M_24.580_-81.680_1785801540000","source":"iem","severity":"low","severityValue":25,"timestamp":1785801540000,"latitude":24.58,"longitude":-81.68}] |
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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