Right now
The most recent data we hold from NOAA arrived 5 minutes ago, and this point is in it.
Nothing else has been detected within 20 km in the last 24 hours.
This alert expired on 11 September 2026 at 21:00 UTC. It is kept here as a record.
It is the 21st strongest of the 26 detections recorded within 20 km of this point since 16 March 2026. The last comparable one was on 2 August 2026.
What the source measured
NOAA reported: Special Marine Warning issued September 11 at 3:31PM EDT until September 11 at 5:00PM EDT by NWS Tallahassee FL
Nearby, since 16 March 2026
- July 6, 2026 · score 22 · 8.4 km
- July 16, 2026 · score 22 · 12.5 km
- August 2, 2026 · score 22 · 12.8 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 16 out of 100, at 60 % confidence.
The score is ours, computed from intensity, exposed population and local history — not the source’s.
Computed under scoring rules v4. 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 |
| Our confidence | 60% |
| Coordinates | 29.5217, -84.2225 |
| Nearest City | Tallahassee (102 km) |
| Impact Tier | minor |
| Timestamp | 2026-09-11T19:31:00.000Z |
| Source | https://api.weather.gov/alerts/urn%3Aoid%3A2.49.0.1.840.0.866cc3a09b83880439985e5e69de7202ea5ac143.001.1 |
Score Breakdown
Technical Details
| Event | Special Marine Warning |
| Urgency | Immediate |
| Certainty | Likely |
| AreaDesc | Coastal Waters From Ochlockonee River to Apalachicola FL out to 20 Nm; Waters from Suwannee River to Apalachicola FL from 20 to 60 NM |
| Headline | Special Marine Warning issued September 11 at 3:31PM EDT until September 11 at 5:00PM EDT by NWS Tallahassee FL |
| Expires | 2026-09-11T17:00:00-04:00 |
| SenderName | NWS Tallahassee FL |
| HasExactCoords | true |
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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