Right now
The most recent data we hold from NOAA arrived 1 minute ago, and this point is not in it. We record detections, not passes: an absence is not proof that nothing is there.
Nothing else has been detected within 20 km in the last 24 hours.
This alert expired on 12 July 2026 at 19:45 UTC. It is kept here as a record.
No stronger detection stands among the 71 recorded within 20 km of this point since 16 March 2026 — 28 others scored the same. Another comparable one was recorded here earlier the same day. 10 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Special Marine Warning issued July 12 at 3:17PM EDT until July 12 at 3:45PM EDT by NWS Charleston SC
An estimated 380,860 people live within 50 km of this point.
Nearby, since 16 March 2026
- July 8, 2026 · score 43 · 8.8 km
- August 2, 2026 · score 43 · 10.2 km
- June 19, 2026 · score 43 · 10.4 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 80 % confidence.
The score is ours, computed from intensity, exposed population and local history — not the source’s.
Computed under scoring rules v1. Rows carrying other versions were judged by different rules and are not directly comparable.
Event Data
| Type | Severe Weather |
| Severity | Medium |
| Calamity Score (ours) | 43 / 100 |
| Our confidence | 80% |
| Coordinates | 32.8233, -79.6858 |
| Nearest City | Mount Pleasant (17 km) |
| Population Exposed | 380.9K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-07-12T19:17:00.000Z |
| Source | https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.ec5fc6d23cb56782b3a4ba0f25efa0284d93952c.002.1 |
Score Breakdown
Technical Details
| Event | Special Marine Warning |
| Urgency | Immediate |
| Certainty | Likely |
| AreaDesc | Coastal waters from South Santee River to Edisto Beach SC out 20 NM |
| Headline | Special Marine Warning issued July 12 at 3:17PM EDT until July 12 at 3:45PM EDT by NWS Charleston SC |
| Expires | 2026-07-12T15:45:00-04:00 |
| SenderName | NWS Charleston SC |
| 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 8 March 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 Mount Pleasant?
Calamity.live data shows a weather event with CalamityScore 43/100, near Mount Pleasant (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.