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.
9 other detections within 20 km in the last 24 hours, the nearest 15 km from here.
This alert expired on 16 March 2026 at 14:00 UTC. It is kept here as a record.
It is the 68th strongest of the 91 detections recorded within 20 km of this point since 12 March 2026. Another comparable one was recorded here earlier the same day. 4 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued March 16 at 9:30AM EDT until March 16 at 10:00AM EDT by NWS Greenville-Spartanburg SC
Urban PEI: 192,039 within a heuristic 50 km radius; not unique people.
Nearby, since 12 March 2026
- September 6, 2026 · score 46 · 4.1 km
- September 5, 2026 · score 46 · 4.1 km
- June 29, 2026 · score 46 · 6.6 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 | 0.88/1 |
| Coordinates | 34.8545, -81.1523 |
| Nearest City | Rock Hill (13 km) |
| Urban exposure index (PEI) | 192.0K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-03-16T13:30:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.c0c959d4dbb80184f3f9bed5a286aea8 |
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: 2026-03-16T13:30:00.000Z.
First archived: 2026-03-16T13:32:52.175Z. 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 | Davie, NC; Iredell, NC; Rowan, NC; Stokes, NC; Surry, NC; Wilkes, NC; Yadkin, NC; Carroll, VA; Floyd, VA; Patrick, VA; Amherst, VA; Appomattox, VA; Bedford, VA; Campbell, VA; Halifax, VA; Pittsylvania, VA; Rockbridge, VA; City of Buena Vista, VA; City of Danville, VA; City of Lynchburg, VA and 6 more areas |
| Headline | Severe Thunderstorm Warning issued March 16 at 9:30AM EDT until March 16 at 10:00AM EDT by NWS Greenville-Spartanburg SC |
| Expires | 2026-03-16T10:00:00-04:00 |
| SenderName | NWS Greenville-Spartanburg SC |
| HasExactCoords | true |
| MergedCount | 9 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.c0c959d4dbb80184f3f9bed5a286aea8b26d9c8d.002.1","noaa_urn:oid:2.49.0.1.840.0.532e286a337b13222b823937657f6dadd5428100.001.1","noaa_urn:oid:2.49.0.1.840.0.fe9b08defad3849295c7c2b9082841ad37ece934.002.1","noaa_urn:oid:2.49.0.1.840.0.2ac14a1e13c107b0f8a608d6f0dbc8dcfe9b018c.001.1","noaa_urn:oid:2.49.0.1.840.0.5cad331725dc6ffc5a018324c24acc11d671bc8f.001.1","noaa_urn:oid:2.49.0.1.840.0.d1de12946a0cb61a61913d2bc88cb59d2c78b433.001.1","noaa_urn:oid:2.49.0.1.840.0.0714138610bc4acc8303800ed30af5d0f55cd141.001.1","noaa_urn:oid:2.49.0.1.840.0.55bc2a6900708d475ad328ae2b90899d1a677738.001.1","noaa_urn:oid:2.49.0.1.840.0.89fbd147a51670fc50091cb721e92c4484d1363e.001.1"] |
| Spc ReportType | wind |
| Spc Speed | UNK |
| Spc Location | 1 N Gaffney |
| Spc County | Cherokee |
| Spc State | SC |
| Spc Comments | Part of a metal roof torn from building. (GSP) |
| Iem TypeSummary | D |
| Iem City | 1 N Gaffney |
| Iem County | Cherokee |
| 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 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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