Right now
The most recent data we hold from NOAA arrived 2 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 10 July 2026 at 21:36 UTC. It is kept here as a record.
It is the 7th strongest of the 85 detections recorded within 20 km of this point since 18 June 2026. The last comparable one was on 6 July 2026. 4 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued July 10 at 5:26PM EDT until July 10 at 5:30PM EDT by NWS Columbia SC
Urban PEI: 15,507 within a heuristic 50 km radius; not unique people.
Nearby, since 18 June 2026
- June 18, 2026 · score 34 · 12.8 km
- August 29, 2026 · score 39 · 14.6 km
- July 6, 2026 · score 39 · 18.2 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 34 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) | 34 / 100 |
| Legacy data-support index | 0.80/1 |
| Coordinates | 34.9129, -79.9362 |
| Nearest City | Laurinburg (46 km) |
| Urban exposure index (PEI) | 15.5K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-07-10T21:26:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.d0b5cb1cee1d1b8fab03d250e5511694 |
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: 2026-07-10T21:26:00.000Z.
First archived: 2026-07-10T21:27:56.099Z. 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 | Clarendon, SC; Lee, SC; Richland, SC; Sumter, SC; Calhoun, SC; Clarendon, SC; Lee, SC; Richland, SC; Sumter, SC; Moore, NC; Richmond, NC; Scotland, NC and 13 more areas |
| Headline | Severe Thunderstorm Warning issued July 10 at 5:26PM EDT until July 10 at 5:30PM EDT by NWS Columbia SC |
| Expires | 2026-07-10T17:36:00-04:00 |
| SenderName | NWS Columbia SC |
| HasExactCoords | true |
| MergedCount | 17 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.d0b5cb1cee1d1b8fab03d250e5511694736500e1.001.1","noaa_urn:oid:2.49.0.1.840.0.597fd5f186fab5b9563c05e9d64a631051c61c33.001.1","noaa_urn:oid:2.49.0.1.840.0.7daa8b995d9e1262ac30d67578cb0d663f0508e0.002.1","noaa_urn:oid:2.49.0.1.840.0.869d3f08a31e80c4f45f3be90426a5a5b83149ab.001.1","noaa_urn:oid:2.49.0.1.840.0.b734bdeadba562dc67402a6905ea45bd90e08cef.002.1","noaa_urn:oid:2.49.0.1.840.0.c2be0a9f40a5c1a31e0efe98323ada1d25ca3921.001.1","noaa_urn:oid:2.49.0.1.840.0.5547bc35cd336faec9a5e150e6abbd0ec07d9b8e.001.1","noaa_urn:oid:2.49.0.1.840.0.dd1778bc2fa42f0a67912fb4184b2960eae40ddd.002.1","noaa_urn:oid:2.49.0.1.840.0.7c2354c46aa3d8b9c703f49b493055d9e5f0df06.001.1","noaa_urn:oid:2.49.0.1.840.0.b814ac488413c7f9f889bc1443d9a1b84b0046b8.002.1","noaa_urn:oid:2.49.0.1.840.0.9a10004b54710ab6aa9c253ce247c60e51cf0dcc.001.1","noaa_urn:oid:2.49.0.1.840.0.030e29423edfabf1099924f46d8dc4f0ad2b5e1a.002.1","noaa_urn:oid:2.49.0.1.840.0.4b1eee26d82435d177189aae49623d4e2bbcd415.001.1","noaa_urn:oid:2.49.0.1.840.0.3c31f2207427319513df844fd91b1889645099b3.001.1","noaa_urn:oid:2.49.0.1.840.0.5e2da63461ab1b89ac12f2203b6962397dfad022.002.1","noaa_urn:oid:2.49.0.1.840.0.61e8b211201ec0710200297a1ee953a6ff5570cb.001.1","noaa_urn:oid:2.49.0.1.840.0.126edf2bcfd2ef2eb1abf67a856afb1d571668f8.001.1"] |
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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