This alert expired on 5 July 2026 at 21:45 UTC. It is kept here as a record.
No stronger detection stands among the 80 recorded within 20 km of this point since 16 March 2026 — 20 others scored the same. Another comparable one was recorded here earlier the same day. 5 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Special Marine Warning issued July 5 at 4:19PM EDT until July 5 at 5:45PM EDT by NWS Charleston SC
An estimated 280,390 people live within 50 km of this point.
Nearby, since 16 March 2026
- July 30, 2026 · score 43 · 5.3 km
- July 7, 2026 · score 37 · 9.1 km
- July 12, 2026 · score 43 · 10.4 km
How we know
Confirmed by 3 independent sources, including NOAA.
Our own score for this event is 43 out of 100, at 88 % 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 | 88% |
| Coordinates | 31.8916, -81.0037 |
| Nearest City | Wilmington Island (12 km) |
| Population Exposed | 280.4K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-07-05T20:19:00.000Z |
| Source | https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.996c1dcae9cc5676d0466fafb958d3c788779f0b.001.1 |
Score Breakdown
Technical Details
| Event | Special Marine Warning |
| Urgency | Immediate |
| Certainty | Likely |
| AreaDesc | Coastal waters from Edisto Beach SC to Savannah GA out 20 NM; Coastal waters from Savannah GA to Altamaha Sound GA out 20 nm, including Grays Reef National Marine Sanctuary |
| Headline | Special Marine Warning issued July 5 at 4:19PM EDT until July 5 at 5:45PM EDT by NWS Charleston SC |
| Expires | 2026-07-05T17:45:00-04:00 |
| SenderName | NWS Charleston SC |
| HasExactCoords | true |
| Iem TypeSummary | D |
| Iem City | 1 N Thunderbolt |
| Iem County | Chatham |
| Iem State | GA |
| Iem Wfo | CHS |
| Iem Remark | Tree knocked over and landed on powerlines in the backyard |
| MergedSources | [{"id":"iem_M_32.010_-80.810_1783283640000","source":"iem","severity":"low","severityValue":25,"timestamp":1783283640000,"latitude":32.01,"longitude":-80.81},{"id":"iem_D_32.050_-81.050_1783281060000","source":"iem","severity":"low","severityValue":25,"timestamp":1783281060000,"latitude":32.05,"longitude":-81.05}] |
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 Wilmington Island?
Calamity.live data shows a weather event with CalamityScore 43/100, near Wilmington Island (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.