Right now
The most recent data we hold from NOAA arrived 7 hours 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 11 May 2026 at 19:30 UTC. It is kept here as a record.
It is the 2nd strongest of the 10 detections recorded within 20 km of this point since 11 May 2026.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued May 11 at 2:32PM EDT until May 11 at 3:30PM EDT by NWS Wilmington NC
Urban PEI: 72,040 within a heuristic 50 km radius; not unique people.
Nearby, since 11 May 2026
- August 10, 2026 · score 43 · 4.9 km
- June 23, 2026 · score 39 · 20.1 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 39 out of 100.
This is our versioned heuristic index, not source severity or a calibrated probability. Urban PEI does not count unique people.
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) | 39 / 100 |
| Legacy data-support index | 0.81/1 |
| Coordinates | 33.8893, -79.3008 |
| Nearest City | Conway (24 km) |
| Urban exposure index (PEI) | 72.0K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-05-11T18:32:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.25bf50dca5a3252bb846388f5e174c37 |
Physical priority index · v1. Heuristic priority, not calibrated probability, predictive accuracy or damage. The legacy data-support index combines assigned source support and field availability. Urban PEI is distance-weighted and does not count unique people; zero does not establish that nobody is present. Model cards.
Source and revision timeline
Source: noaa. Occurrence: 2026-05-11T18:32:00.000Z.
First archived: 2026-05-11T18:42:19.210Z. Material modification: not recorded.
Retained revisions are prospective; earlier versions may be unavailable. No revision entry does not prove that a record never changed.
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Georgetown, SC; Williamsburg, SC; Columbus, NC; Horry, SC |
| Headline | Severe Thunderstorm Warning issued May 11 at 2:32PM EDT until May 11 at 3:30PM EDT by NWS Wilmington NC |
| Expires | 2026-05-11T15:30:00-04:00 |
| SenderName | NWS Wilmington NC |
| HasExactCoords | true |
| MergedCount | 2 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.25bf50dca5a3252bb846388f5e174c37ad721e14.001.1","noaa_urn:oid:2.49.0.1.840.0.018840ffee3aa67f79a2841541112a725372648f.002.1"] |
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.
Review the area, threshold and delivery channel in your account.
Want to know when something happens near Conway?