This alert expired on 20 July 2026 at 20:00 UTC. It is kept here as a record.
It is the 2nd strongest of the 72 detections recorded within 20 km of this point since 15 March 2026. The last comparable one was on 10 July 2026. 4 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Special Marine Warning issued July 20 at 3:03PM EDT until July 20 at 4:00PM EDT by NWS Jacksonville FL
An estimated 257,864 people live within 50 km of this point.
Nearby, since 15 March 2026
- June 18, 2026 · score 43 · 1.2 km
- August 12, 2026 · score 43 · 9.1 km
- June 16, 2026 · score 43 · 10.5 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 43 out of 100, at 81 % 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) | 43 / 100 |
| Our confidence | 81% |
| Coordinates | 29.8521, -81.2871 |
| Nearest City | Palm Coast (31 km) |
| Population Exposed | 257.9K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-07-20T19:03:00.000Z |
| Source | https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.0e4cf74085309629d1405c3d662a8cabcbe6d5d2.001.1 |
Score Breakdown
Technical Details
| Event | Special Marine Warning |
| Urgency | Immediate |
| Certainty | Likely |
| AreaDesc | Coastal waters from Fernandina Beach to St. Augustine FL out 20 NM; Coastal waters from St. Augustine to Flagler Beach FL out 20 NM |
| Headline | Special Marine Warning issued July 20 at 3:03PM EDT until July 20 at 4:00PM EDT by NWS Jacksonville FL |
| Expires | 2026-07-20T16:00:00-04:00 |
| SenderName | NWS Jacksonville 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 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 near Palm Coast?
Calamity.live data shows a weather event with CalamityScore 43/100 (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 187 scientific monitoring sources.