This alert expired on 13 August 2026 at 02:30 UTC. It is kept here as a record.
No stronger detection stands among the 57 recorded within 20 km of this point since 16 March 2026 — 41 others scored the same. The last comparable one was on 7 August 2026. 3 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Special Marine Warning issued August 12 at 8:33PM EDT until August 12 at 10:30PM EDT by NWS Tallahassee FL
Nearby, since 16 March 2026
- June 1, 2026 · score 22 · 11.3 km
- June 17, 2026 · score 22 · 13.9 km
- May 29, 2026 · score 22 · 22.4 km
How we know
Confirmed by 2 independent sources, including NOAA.
Our own score for this event is 22 out of 100, at 64 % confidence.
The score is ours, computed from intensity, exposed population and local history — not the source’s.
Event Data
| Type | Severe weather |
| Severity | medium |
| Calamity Score (ours) | 22 / 100 |
| Our confidence | 64% |
| Coordinates | 29.7974, -84.4197 |
| Nearest City | Tallahassee (73 km) |
| Impact Tier | minor |
| Timestamp | 2026-08-13T00:33:00.000Z |
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; Apalachee Bay or Coastal Waters From Keaton Beach to Ochlockonee River Fl out to 20 Nm; Coastal Waters From Ochlockonee River to Apalachicola FL out to 20 Nm |
| Headline | Special Marine Warning issued August 12 at 8:33PM EDT until August 12 at 10:30PM EDT by NWS Tallahassee FL |
| Expires | 2026-08-12T22:30:00-04:00 |
| SenderName | NWS Tallahassee FL |
| HasExactCoords | true |
| MergedCount | 2 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.9faea1cc95d62981f51faa82466825b81f011903.001.1","noaa_urn:oid:2.49.0.1.840.0.4efae7d90e3acef6dca5e0191d213cd3b517f19b.001.1"] |
| Iem TypeSummary | M |
| Iem Magnitude | 39 |
| Iem Unit | MPH |
| Iem City | 2 ENE Panacea-Wakulla A |
| Iem County | GMZ730 |
| Iem State | FL |
| Iem Wfo | TAE |
| Iem Remark | Apalachee Bay - Panacea Channel reported 39 mph gust. |
| MergedSources | [{"id":"iem_M_30.000_-84.360_1786577940000","source":"iem","severity":"low","severityValue":25,"timestamp":1786577940000,"latitude":30,"longitude":-84.36}] |
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 10 February 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.
Calamity.live data shows a weather event with CalamityScore 22/100, near Tallahassee (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 191 scientific monitoring sources.