Right now
The most recent data we hold from NOAA arrived 13 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 16 March 2026 at 13:45 UTC. It is kept here as a record.
No stronger detection stands among the 96 recorded within 20 km of this point since 12 March 2026 — 9 others scored the same. Another comparable one was recorded here earlier the same day. 5 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued March 16 at 9:36AM EDT until March 16 at 9:45AM EDT by NWS Blacksburg VA
Urban PEI: 1,200,673 within a heuristic 50 km radius; not unique people.
Nearby, since 12 March 2026
- September 19, 2026 · score 46 · 4.7 km
- September 18, 2026 · score 46 · 4.7 km
- September 6, 2026 · score 46 · 8.3 km
How we know
3 recorded sources include NOAA; independence is not established by this count.
Our own score for this event is 52 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) | 52 / 100 |
| Legacy data-support index | 0.88/1 |
| Coordinates | 34.9423, -81.0693 |
| Nearest City | Rock Hill (4 km) |
| Urban exposure index (PEI) | 1.2M within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-03-16T13:36:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.c1b3f138f236e92654c74a5ab643990e |
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: 2026-03-16T13:36:00.000Z.
First archived: 2026-03-16T13:38:24.184Z. 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 | Amherst, VA; Appomattox, VA; Bedford, VA; Campbell, VA; Halifax, VA; Pittsylvania, VA; Rockbridge, VA; City of Lynchburg, VA; Stokes, NC; Surry, NC; Wilkes, NC; Yadkin, NC; Carroll, VA; Floyd, VA; Patrick, VA; Cabarrus, NC; Gaston, NC; Lincoln, NC; Mecklenburg, NC and 7 more areas |
| Headline | Severe Thunderstorm Warning issued March 16 at 9:36AM EDT until March 16 at 9:45AM EDT by NWS Blacksburg VA |
| Expires | 2026-03-16T09:45:00-04:00 |
| SenderName | NWS Blacksburg VA |
| HasExactCoords | true |
| MergedCount | 10 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.c1b3f138f236e92654c74a5ab643990ef34b821b.002.1","noaa_urn:oid:2.49.0.1.840.0.532e286a337b13222b823937657f6dadd5428100.001.1","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:2.49.0.1.840.0.76d927597355f4e308268752c4fed7e99e1df556.001.1","noaa_urn:oid:2.49.0.1.840.0.35c83012bad3a49515c44fcdbf2107b67be9c5d0.001.1","noaa_urn:oid:2.49.0.1.840.0.6a35aa7ce75d9052b59213cfb847d6ed2c37cead.001.1","noaa_urn:oid:2.49.0.1.840.0.c0c959d4dbb80184f3f9bed5a286aea8b26d9c8d.002.1","noaa_urn:oid:2.49.0.1.840.0.0714138610bc4acc8303800ed30af5d0f55cd141.001.1","noaa_urn:oid:2.49.0.1.840.0.89fbd147a51670fc50091cb721e92c4484d1363e.001.1"] |
| Iem TypeSummary | D |
| Iem City | 1 N Gaffney |
| Iem County | Cherokee |
| Iem State | SC |
| Iem Wfo | GSP |
| Iem Remark | Part of a metal roof torn from building. |
| Google News RssFeed | weather |
| Google News SourceName | WBTV |
| MergedSources | [{"id":"iem_D_35.080_-81.650_1773664800000","source":"iem","severity":"low","severityValue":25,"timestamp":1773664800000,"latitude":35.08,"longitude":-81.65},{"id":"gnews_weather_492683_125","source":"google_news","severity":"medium","severityValue":40,"timestamp":1773660152000,"latitude":35.23,"longitude":-80.84}] |
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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