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 23 May 2026 at 22:00 UTC. It is kept here as a record.
It is the 96th strongest of the 345 detections recorded within 20 km of this point since 12 March 2026. The last comparable one was on 13 March 2026.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued May 23 at 5:13PM EDT until May 23 at 6:00PM EDT by NWS Columbia SC
An estimated 214,909 people live within 50 km of this point.
Nearby, since 12 March 2026
- May 23, 2026 · score 43 · 3.8 km
- July 12, 2026 · score 43 · 6.0 km
- August 5, 2026 · score 37 · 9.5 km
How we know
Confirmed by 2 independent sources, including NOAA.
Our own score for this event is 43 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) | 43 / 100 |
| Our confidence | 85% |
| Coordinates | 34.1150, -81.3388 |
| Nearest City | Lexington (18 km) |
| Population Exposed | 214.9K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-05-23T21:13:00.000Z |
| Source | https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.f9655bcd9a744c5d24b5fd8f0976fd3f686820fb.001.1 |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Lexington, SC; Newberry, SC; Richland, SC; Saluda, SC |
| Headline | Severe Thunderstorm Warning issued May 23 at 5:13PM EDT until May 23 at 6:00PM EDT by NWS Columbia SC |
| Expires | 2026-05-23T18:00:00-04:00 |
| SenderName | NWS Columbia SC |
| HasExactCoords | true |
| Iem TypeSummary | H |
| Iem Magnitude | 1.75 |
| Iem Unit | Inch |
| Iem City | 7 ENE Saluda |
| Iem County | Saluda |
| Iem State | SC |
| Iem Wfo | CAE |
| Iem Remark | Public report of golf ball size hail Highway 378. |
| MergedSources | [{"id":"iem_H_34.030_-81.660_1779569100000","source":"iem","severity":"low","severityValue":25,"timestamp":1779569100000,"latitude":34.03,"longitude":-81.66}] |
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.
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