This alert expired on 23 June 2026 at 00:30 UTC. It is kept here as a record.
It is the 18th strongest of the 33 detections recorded within 20 km of this point since 8 March 2026. The last comparable one was on 21 June 2026. 7 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Special Marine Warning issued June 22 at 7:27PM EDT until June 22 at 8:30PM EDT by NWS Jacksonville FL
An estimated 50,612 people live within 50 km of this point.
Nearby, since 8 March 2026
- June 27, 2026 · score 52 · 11.4 km
- June 19, 2026 · score 52 · 14.6 km
- May 28, 2026 · score 52 · 14.9 km
How we know
Confirmed by 4 independent sources, including NOAA.
Our own score for this event is 39 out of 100, at 89 % 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) | 39 / 100 |
| Our confidence | 89% |
| Coordinates | 30.8110, -81.4915 |
| Nearest City | St. Marys (11 km) |
| Population Exposed | 50.6K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-06-22T23:27:00.000Z |
| Source | https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.8900c626e29ef3ecc246fae2ec1d8029590d7c4b.001.1 |
Score Breakdown
Technical Details
| Event | Special Marine Warning |
| Urgency | Immediate |
| Certainty | Likely |
| AreaDesc | Coastal waters from Altamaha Sound to Fernandina Beach FL out 20 NM; Coastal waters from Fernandina Beach to St. Augustine FL out 20 NM |
| Headline | Special Marine Warning issued June 22 at 7:27PM EDT until June 22 at 8:30PM EDT by NWS Jacksonville FL |
| Expires | 2026-06-22T20:30:00-04:00 |
| SenderName | NWS Jacksonville FL |
| HasExactCoords | true |
| Iem TypeSummary | G |
| Iem Magnitude | 40 |
| Iem Unit | MPH |
| Iem City | 4 W Woodbine |
| Iem County | Camden |
| Iem State | GA |
| Iem Wfo | JAX |
| Iem Remark | University of Georgia observation site UGA82 recorded a wind gust of 40 mph. |
| MergedSources | [{"id":"iem_D_30.860_-82.040_1782169200000","source":"iem","severity":"low","severityValue":25,"timestamp":1782169200000,"latitude":30.86,"longitude":-82.04},{"id":"iem_G_30.220_-81.670_1782159840000","source":"iem","severity":"low","severityValue":25,"timestamp":1782159840000,"latitude":30.22,"longitude":-81.67},{"id":"iem_G_30.960_-81.780_1782171000000","source":"iem","severity":"low","severityValue":25,"timestamp":1782171000000,"latitude":30.96,"longitude":-81.78}] |
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 39/100, near St. Marys (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 188 scientific monitoring sources.