This alert expired on 13 July 2026 at 19:45 UTC. It is kept here as a record.
No stronger detection stands among the 87 recorded within 20 km of this point since 16 March 2026 — 76 others scored the same. Another comparable one was recorded here earlier the same day. 7 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Special Marine Warning issued July 13 at 2:45PM EDT until July 13 at 3:45PM EDT by NWS Jacksonville FL
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 22 out of 100, at 61 % 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 | 61% |
| Coordinates | 29.6028, -83.0058 |
| Nearest City | Gainesville (66 km) |
| Impact Tier | minor |
| Timestamp | 2026-07-13T18:45:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Special Marine Warning_noaa_urn:oid:2.49.0.1.840.0.389c5ea418d33b47b26fbc305742842d |
Score Breakdown
Technical Details
| Event | Special Marine Warning |
| Urgency | Immediate |
| Certainty | Likely |
| AreaDesc | Waters from Altamaha Sound GA to Fernandina Beach FL from 20 to 60 NM; Waters from Fernandina Beach to St. Augustine FL from 20 to 60 NM; Coastal waters from St. Augustine to Flagler Beach FL out 20 NM; Coastal waters from Tarpon Springs to Suwannee River FL out 20 NM; Waters from Tarpon Springs to Suwannee River FL out 20 to 60 NM and 2 more areas |
| Headline | Special Marine Warning issued July 13 at 2:45PM EDT until July 13 at 3:45PM EDT by NWS Jacksonville FL |
| Expires | 2026-07-13T15:45:00-04:00 |
| SenderName | NWS Jacksonville FL |
| HasExactCoords | true |
| MergedCount | 5 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.389c5ea418d33b47b26fbc305742842d95896399.001.1","noaa_urn:oid:2.49.0.1.840.0.cafc2bd192ed96c115225a5393f091ae9830c2ea.001.1","noaa_urn:oid:2.49.0.1.840.0.c6c0029fcf109330f66474288bed29fc1b95e914.001.1","noaa_urn:oid:2.49.0.1.840.0.3d987cd52b1265bbb9f7504ead941aff3c25f928.001.1","noaa_urn:oid:2.49.0.1.840.0.b5b762de671064bc8c77e1592df8609ecb1ab144.001.1"] |
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.
Want to know when something happens in this area?
Calamity.live data shows a weather event with CalamityScore 22/100 (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.