This alert expired on 11 May 2026 at 19:16 UTC. It is kept here as a record.
No stronger detection stands among the 16 recorded within 20 km of this point since 9 March 2026 — 12 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: Severe Thunderstorm Warning issued May 11 at 3:06PM EDT until May 11 at 3:15PM EDT by NWS Wilmington NC
An estimated 87,619 people live within 50 km of this point.
Nearby, since 9 March 2026
- March 9, 2026 · score 22 · 4.3 km
- March 13, 2026 · score 39 · 8.8 km
- March 12, 2026 · score 39 · 8.8 km
How we know
Confirmed by 2 independent sources, including NOAA.
Our own score for this event is 39 out of 100, at 86 % 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 | 86% |
| Coordinates | 33.9186, -79.0530 |
| Nearest City | Conway (9 km) |
| Population Exposed | 87.6K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-05-11T19:06:00.000Z |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Columbus, NC; Horry, SC; Georgetown, SC; Williamsburg, SC |
| Headline | Severe Thunderstorm Warning issued May 11 at 3:06PM EDT until May 11 at 3:15PM EDT by NWS Wilmington NC |
| Expires | 2026-05-11T15:16:00-04:00 |
| SenderName | NWS Wilmington NC |
| HasExactCoords | true |
| MergedCount | 3 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.d6cf12182912edd88832ad0491930991b0db3bef.001.1","noaa_urn:oid:2.49.0.1.840.0.a9de58267498ea821b48c84492addb92b8247698.001.1","noaa_urn:oid:2.49.0.1.840.0.830ad3b50c45a49090341a4c37d82c5a33df80da.001.1"] |
| Iem TypeSummary | H |
| Iem Magnitude | 1.75 |
| Iem Unit | inch |
| Iem City | Green Sea |
| Iem County | Horry |
| Iem State | SC |
| Iem Wfo | ILM |
| Iem Remark | Golf ball sized hail confirmed via photo sent in |
| MergedSources | [{"id":"iem_H_34.130_-78.980_1778524860000","source":"iem","severity":"low","severityValue":25,"timestamp":1778524860000,"latitude":34.13,"longitude":-78.98}] |
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 Conway (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 194 scientific monitoring sources.