Right now
The most recent data we hold from NOAA arrived 20 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 20 September 2026 at 22:45 UTC. It is kept here as a record.
It is the 11th strongest of the 14 detections recorded within 20 km of this point since 16 March 2026. The last comparable one was on 12 September 2026. 2 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Special Marine Warning issued September 20 at 6:10PM EDT until September 20 at 6:45PM EDT by NWS Tampa Bay Ruskin FL
Nearby, since 16 March 2026
- August 29, 2026 · score 22 · 7.5 km
- September 12, 2026 · score 16 · 17.7 km
- July 30, 2026 · score 22 · 19.3 km
How we know
2 recorded sources include NOAA; independence is not established by this count.
Our own score for this event is 16 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 v5. 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 |
| Legacy data-support index | 0.65/1 |
| Coordinates | 28.9240, -82.9940 |
| Nearest City | Spring Hill (67 km) |
| Urban exposure index (PEI) | 0 within 50 km |
| Impact Tier | minor |
| Timestamp | 2026-09-20T22:10:00.000Z |
| Source | https://api.weather.gov/alerts/urn%3Aoid%3A2.49.0.1.840.0.2ccf6b3fcf8d2cb3ccbabf23e0d7f298bb98f45b.001.1 |
Physical priority index · v5. 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: 2026-09-20T22:10:00.000Z.
First archived: 2026-09-20T22:15:59.744Z. 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 | Coastal waters from Tarpon Springs to Suwannee River FL out 20 NM |
| Headline | Special Marine Warning issued September 20 at 6:10PM EDT until September 20 at 6:45PM EDT by NWS Tampa Bay Ruskin FL |
| Expires | 2026-09-20T18:45:00-04:00 |
| SenderName | NWS Tampa Bay Ruskin FL |
| HasExactCoords | true |
| Iem TypeSummary | M |
| Iem Magnitude | 49 |
| Iem Unit | MPH |
| Iem City | 1 SSE Cedar Key |
| Iem County | GMZ850 |
| Iem State | FL |
| Iem Wfo | TBW |
| Iem Remark | Buoy station CKYF1 Cedar Key, FL reported 49 mph wind gust. |
| MergedSources | [{"id":"iem_M_29.440_-83.290_1789936740000","source":"iem","severity":"low","severityValue":25,"timestamp":1789936740000,"latitude":29.44,"longitude":-83.29},{"id":"iem_G_28.900_-82.650_1789934400000","source":"iem","severity":"low","severityValue":25,"timestamp":1789934400000,"latitude":28.9,"longitude":-82.65},{"id":"iem_M_29.140_-83.030_1789939800000","source":"iem","severity":"low","severityValue":25,"timestamp":1789939800000,"latitude":29.14,"longitude":-83.03}] |
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.
Review the area, threshold and delivery channel in your account.
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