Right now
The most recent data we hold from NOAA arrived 2 hours 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 16 March 2026 at 13:30 UTC. It is kept here as a record.
It is the 6th strongest of the 30 detections recorded within 20 km of this point since 16 March 2026.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued March 16 at 9:15AM EDT until March 16 at 9:30AM EDT by NWS Blacksburg VA
Urban PEI: 146,091 within a heuristic 50 km radius; not unique people.
Nearby, since 16 March 2026
- August 2, 2026 · score 43 · 4.1 km
- September 6, 2026 · 13.7 km
- September 5, 2026 · 13.7 km
How we know
4 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 | 34.8211, -81.2523 |
| Nearest City | Rock Hill (23 km) |
| Urban exposure index (PEI) | 146.1K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-03-16T13:15:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.14b8ff21d7cf32c99244ec1138871a65 |
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: 2026-03-16T13:15:00.000Z.
First archived: 2026-03-16T13:16:42.559Z. 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 | Alleghany, NC; Surry, NC; Wilkes, NC; Gaston, NC; Lincoln, NC; Laurens, SC; Union, SC and 8 more areas |
| Headline | Severe Thunderstorm Warning issued March 16 at 9:15AM EDT until March 16 at 9:30AM EDT by NWS Blacksburg VA |
| Expires | 2026-03-16T09:30:00-04:00 |
| SenderName | NWS Blacksburg VA |
| HasExactCoords | true |
| MergedCount | 11 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.14b8ff21d7cf32c99244ec1138871a651840ea28.001.1","noaa_urn:oid:2.49.0.1.840.0.1d8a6a32cb1f67554c74c3ef7d17a0729592c1ce.002.1","noaa_urn:oid:2.49.0.1.840.0.b95a35d936cfce086da042ce3bcdf35427a3010a.002.1","noaa_urn:oid:2.49.0.1.840.0.2ac14a1e13c107b0f8a608d6f0dbc8dcfe9b018c.001.1","noaa_urn:oid:2.49.0.1.840.0.cf13a24df433e1709e05219b835a338ed3d47975.001.1","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","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:2.49.0.1.840.0.7cdd3094f48f7ad721ec480951b4efd2d60cdddd.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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