This alert expired on 29 June 2026 at 22:30 UTC. It is kept here as a record.
No stronger detection stands among the 20 recorded within 20 km of this point since 22 May 2026 — 6 others scored the same. Another comparable one was recorded here earlier the same day. 6 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued June 29 at 5:28PM EDT until June 29 at 6:30PM EDT by NWS Greenville-Spartanburg SC
An estimated 50,595 people live within 50 km of this point.
Nearby, since 22 May 2026
- June 30, 2026 · score 39 · 20.2 km
How we know
Confirmed by 4 independent sources, including NOAA.
Our own score for this event is 39 out of 100, at 89 % 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 | 89% |
| Coordinates | 34.1944, -82.4126 |
| Nearest City | Greenwood (23 km) |
| Population Exposed | 50.6K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-06-29T21:28:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.f4b382e6b2dba518ccac1c5e5e803d56 |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Greenville, SC; Laurens, SC; Spartanburg, SC; Burke, GA; Richmond, GA; Greenwood, SC; Laurens, SC and 3 more areas |
| Headline | Severe Thunderstorm Warning issued June 29 at 5:28PM EDT until June 29 at 6:30PM EDT by NWS Greenville-Spartanburg SC |
| Expires | 2026-06-29T18:30:00-04:00 |
| SenderName | NWS Greenville-Spartanburg SC |
| HasExactCoords | true |
| MergedCount | 6 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.f4b382e6b2dba518ccac1c5e5e803d5683c80308.001.1","noaa_urn:oid:2.49.0.1.840.0.5a568702c3ec0d0d7186c29ac79b9d771083dd38.001.1","noaa_urn:oid:2.49.0.1.840.0.3e2de9c95ec62eb47cef671d096416b5fc128ac7.001.1","noaa_urn:oid:2.49.0.1.840.0.9d179289f50d2cc52a95d7f261a32693f66100ed.001.1","noaa_urn:oid:2.49.0.1.840.0.81c0ecf5911622e9985ab365ce47799c136b9881.001.1","noaa_urn:oid:2.49.0.1.840.0.1eeba0d7790a03b03a60be32b4a657367a4f140e.001.1"] |
| Spc ReportType | wind |
| Spc Speed | UNK |
| Spc Location | 4 SSW Powdersville |
| Spc County | Anderson |
| Spc State | SC |
| Spc Comments | Power outage caused by trees on powerlines. (GSP) |
| Iem TypeSummary | D |
| Iem City | 2 WNW Easley |
| Iem County | Pickens |
| Iem State | SC |
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 Greenwood (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 188 scientific monitoring sources.