This alert expired on 25 June 2026 at 22:30 UTC. It is kept here as a record.
It is the 9th strongest of the 49 detections recorded within 20 km of this point since 15 March 2026. Another comparable one was recorded here earlier the same day. 17 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Special Marine Warning issued June 25 at 5:23PM EDT until June 25 at 6:30PM EDT by NWS Jacksonville FL
An estimated 257,864 people live within 50 km of this point.
Nearby, since 15 March 2026
- June 26, 2026 · score 52 · 9.3 km
- June 23, 2026 · score 43 · 10.7 km
- July 20, 2026 · score 43 · 11.5 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 76 % 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 | 76% |
| Coordinates | 29.9557, -81.2786 |
| Nearest City | Palm Valley (27 km) |
| Population Exposed | 257.9K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-06-25T21:23:00.000Z |
| Source | https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.76a5a2ef695ce7b47fbff9ecc3ca5b4361811d89.001.1 |
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 June 25 at 5:23PM EDT until June 25 at 6:30PM EDT by NWS Jacksonville FL |
| Expires | 2026-06-25T18:30:00-04:00 |
| 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 Valley?
Calamity.live data shows a weather event with CalamityScore 43/100, near Palm Valley (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 188 scientific monitoring sources.