Right now
The most recent data we hold from NOAA arrived 15 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 29 June 2026 at 23:30 UTC. It is kept here as a record.
It is the 29th strongest of the 85 detections recorded within 20 km of this point since 16 March 2026. The last comparable one was on 13 June 2026.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued June 29 at 6:31PM EDT until June 29 at 7:30PM EDT by NWS Greenville-Spartanburg SC
Urban PEI: 230,239 within a heuristic 50 km radius; not unique people.
Nearby, since 16 March 2026
- June 12, 2026 · score 43 · 9.0 km
- June 11, 2026 · score 37 · 9.8 km
- June 30, 2026 · score 45 · 11.5 km
How we know
5 recorded sources include NOAA; independence is not established by this count.
Our own score for this event is 43 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) | 43 / 100 |
| Legacy data-support index | 0.90/1 |
| Coordinates | 35.2975, -82.4100 |
| Nearest City | Asheville (36 km) |
| Urban exposure index (PEI) | 230.2K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-06-29T22:31:00.000Z |
| Source | https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.e21704f5ba486218d6aa8083cd0c0d611813ccf5.001.1 |
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: 2026-06-29T22:31:00.000Z.
First archived: 2026-06-29T23:15:07.516Z. 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 | Henderson, NC |
| Headline | Severe Thunderstorm Warning issued June 29 at 6:31PM EDT until June 29 at 7:30PM EDT by NWS Greenville-Spartanburg SC |
| Expires | 2026-06-29T19:30:00-04:00 |
| SenderName | NWS Greenville-Spartanburg SC |
| HasExactCoords | true |
| 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 |
| Iem Wfo | GSP |
| Iem Remark | Trees and power lines down on the west side of Easley. |
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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