Right now
The most recent data we hold from NOAA arrived 38 minutes ago, and this point is not in it. We record detections, not passes: an absence is not proof that nothing is there.
6 other detections within 20 km in the last 24 hours, the nearest 12 km from here.
This alert expired on 29 July 2026 at 00:45 UTC. It is kept here as a record.
It is the 9th strongest of the 83 detections recorded within 20 km of this point since 16 March 2026. Another comparable one was recorded here earlier the same day. 3 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued July 28 at 8:17PM EDT until July 28 at 8:45PM EDT by NWS Greenville-Spartanburg SC
Urban PEI: 108,471 within a heuristic 50 km radius; not unique people.
Nearby, since 16 March 2026
- June 29, 2026 · score 43 · 8.0 km
- July 29, 2026 · score 32 · 10.3 km
- September 19, 2026 · score 37 · 11.6 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 37 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) | 37 / 100 |
| Legacy data-support index | 0.80/1 |
| Coordinates | 35.2816, -82.1398 |
| Nearest City | Greer (39 km) |
| Urban exposure index (PEI) | 108.5K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-07-29T00:17:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.5843ae397b7e115b6ff250eb80a892ce |
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: 2026-07-29T00:17:00.000Z.
First archived: 2026-07-29T00:20:21.374Z. 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 | Rabun, GA; Oconee, SC; Towns, GA; White, GA; Rabun, GA; Macon, NC and 5 more areas |
| Headline | Severe Thunderstorm Warning issued July 28 at 8:17PM EDT until July 28 at 8:45PM EDT by NWS Greenville-Spartanburg SC |
| Expires | 2026-07-28T20:45:00-04:00 |
| SenderName | NWS Greenville-Spartanburg SC |
| HasExactCoords | true |
| MergedCount | 8 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.5843ae397b7e115b6ff250eb80a892ce17406c5c.002.1","noaa_urn:oid:2.49.0.1.840.0.b7a1ad074b34f1bb16202e009ebb6fd780b53e2b.001.1","noaa_urn:oid:2.49.0.1.840.0.5ce259819371ff4647b92f88fa1f09aaa9c85660.002.1","noaa_urn:oid:2.49.0.1.840.0.7eb9dd48b5c19d9c13cfc36a8cfd85bf566d60b8.001.1","noaa_urn:oid:2.49.0.1.840.0.6d546d33de4967553686cce4e463dac947687bff.001.1","noaa_urn:oid:2.49.0.1.840.0.a8f3e435bdbd4bfe89f89279d3ac2cbd36bc56d5.001.1","noaa_urn:oid:2.49.0.1.840.0.b0703ffa64396764d01bc6ddc9a1885b93da0ac3.002.1","noaa_urn:oid:2.49.0.1.840.0.40f5c1b38a2ced36316f750fb657542aeb434a8d.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.
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