Right now
The most recent data we hold from NOAA arrived 4 minutes 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 7 July 2026 at 20:05 UTC. It is kept here as a record.
No stronger detection stands among the 12 recorded within 20 km of this point since 30 April 2026 — 2 others scored the same. Another comparable one was recorded here earlier the same day. 2 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Special Marine Warning issued July 7 at 3:55PM EDT until July 7 at 4:00PM EDT by NWS Charleston SC
An estimated 50,987 people live within 50 km of this point.
Nearby, since 30 April 2026
- August 13, 2026 · score 22 · 14.0 km
- August 3, 2026 · score 28 · 16.2 km
- August 10, 2026 · score 22 · 20.0 km
How we know
Confirmed by 2 independent sources, including NOAA.
Our own score for this event is 32 out of 100, at 85 % 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) | 32 / 100 |
| Our confidence | 85% |
| Coordinates | 33.3400, -79.1531 |
| Nearest City | Socastee (40 km) |
| Population Exposed | 51.0K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-07-07T19:55:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Special Marine Warning_noaa_urn:oid:2.49.0.1.840.0.6a184e38231fb1d280e6eb7320a8015f |
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; Coastal waters from Little River Inlet to Murrells Inlet SC out 20 NM |
| Headline | Special Marine Warning issued July 7 at 3:55PM EDT until July 7 at 4:00PM EDT by NWS Charleston SC |
| Expires | 2026-07-07T16:05:00-04:00 |
| SenderName | NWS Charleston SC |
| HasExactCoords | true |
| MergedCount | 2 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.6a184e38231fb1d280e6eb7320a8015f8f9e5783.001.1","noaa_urn:oid:2.49.0.1.840.0.246f574404721562b254babb7887b094de2924ed.001.1"] |
| Iem TypeSummary | D |
| Iem City | 3 W Briarcliffe Acres |
| Iem County | Horry |
| Iem State | SC |
| Iem Wfo | ILM |
| Iem Remark | *** 1 INJ *** A tree fell on a vehicle injuring one person. |
| MergedSources | [{"id":"iem_D_33.770_-78.800_1783448460000","source":"iem","severity":"low","severityValue":25,"timestamp":1783448460000,"latitude":33.77,"longitude":-78.8}] |
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 in this area?
Calamity.live data shows a weather event with CalamityScore 32/100 (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.