Right now
The most recent data we hold from NOAA arrived 60 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 22 May 2026 at 23:30 UTC. It is kept here as a record.
No stronger detection stands among the 71 recorded within 20 km of this point since 22 May 2026 — 7 others scored the same. Another comparable one was recorded here earlier the same day. One more was recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued May 22 at 6:50PM EDT until May 22 at 7:30PM EDT by NWS Greenville-Spartanburg SC
Urban PEI: 23,260 within a heuristic 50 km radius; not unique people.
Nearby, since 22 May 2026
- May 22, 2026 · score 34 · 6.9 km
- July 2, 2026 · score 34 · 7.6 km
- September 6, 2026 · score 32 · 12.6 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 34 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) | 34 / 100 |
| Legacy data-support index | 0.80/1 |
| Coordinates | 34.0881, -81.9415 |
| Nearest City | Greenwood (24 km) |
| Urban exposure index (PEI) | 23.3K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-05-22T22:50:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.fa8e493a9ab7910c16018ce9c1473307 |
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: 2026-05-22T22:50:00.000Z.
First archived: 2026-05-22T23:12:29.094Z. 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 | Greenwood, SC; Laurens, SC; Edgefield, SC; Newberry, SC; Saluda, SC |
| Headline | Severe Thunderstorm Warning issued May 22 at 6:50PM EDT until May 22 at 7:30PM EDT by NWS Greenville-Spartanburg SC |
| Expires | 2026-05-22T19:30:00-04:00 |
| SenderName | NWS Greenville-Spartanburg SC |
| HasExactCoords | true |
| MergedCount | 2 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.fa8e493a9ab7910c16018ce9c147330760a906b9.001.1","noaa_urn:oid:2.49.0.1.840.0.d87997a687be296e57951377b777e03c819c610f.001.1"] |
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.
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