This alert expired on 16 March 2026 at 13:30 UTC. It is kept here as a record.
It is the 26th strongest of the 36 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 March 16 at 9:09AM EDT until March 16 at 9:30AM EDT by NWS Greenville-Spartanburg SC
Nearby, since 16 March 2026
- June 28, 2026 · score 43 · 19.4 km
- June 27, 2026 · score 32 · 22.1 km
How we know
Confirmed by 2 independent sources, including NOAA.
Our own score for this event is 22 out of 100, at 63 % confidence.
The score is ours, computed from intensity, exposed population and local history — not the source’s.
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) | 22 / 100 |
| Our confidence | 63% |
| Coordinates | 34.5619, -81.5226 |
| Nearest City | Spartanburg (57 km) |
| Impact Tier | minor |
| Timestamp | 2026-03-16T13:09:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.1d8a6a32cb1f67554c74c3ef7d17a072 |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Gaston, NC; Lincoln, NC; Alexander, NC; Burke, NC; Caldwell, NC; Catawba, NC; Laurens, SC; Union, SC and 10 more areas |
| Headline | Severe Thunderstorm Warning issued March 16 at 9:09AM EDT until March 16 at 9:30AM EDT by NWS Greenville-Spartanburg SC |
| Expires | 2026-03-16T09:30:00-04:00 |
| SenderName | NWS Greenville-Spartanburg SC |
| HasExactCoords | true |
| MergedCount | 13 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.1d8a6a32cb1f67554c74c3ef7d17a0729592c1ce.002.1","noaa_urn:oid:2.49.0.1.840.0.bcb25d1ef7712feed3cd08c55fe0660af25e53ba.001.1","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.e6a4d983f38aefbae126da21e1c12b16ab507cb2.002.1","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.d940677f9d2406eefb0e3001d5fc117a35cb50f5.002.1","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:2.49.0.1.840.0.18377003956b4b2afec1a36cc13157613a3b25e0.001.1"] |
| 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. |
| MergedSources | [{"id":"iem_D_35.080_-81.650_1773664800000","source":"iem","severity":"low","severityValue":25,"timestamp":1773664800000,"latitude":35.08,"longitude":-81.65}] |
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.
Want to know when something happens in this area?
Calamity.live data shows a weather event with CalamityScore 22/100 (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.