Right now
The most recent data we hold from NOAA arrived 7 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 22:45 UTC. It is kept here as a record.
No stronger detection stands among the 160 recorded within 20 km of this point since 12 March 2026 — 6 others scored the same. The last comparable one was on 6 July 2026. One more was recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued July 10 at 6:35PM EDT until July 10 at 6:45PM EDT by NWS Columbia SC
Urban PEI: 268,976 within a heuristic 50 km radius; not unique people.
Nearby, since 12 March 2026
- July 10, 2026 · score 43 · 0.0 km
- September 5, 2026 · score 37 · 3.7 km
- September 6, 2026 · score 37 · 11.7 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
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 | 0.80/1 |
| Coordinates | 34.7775, -78.8084 |
| Nearest City | Hope Mills (25 km) |
| Urban exposure index (PEI) | 269.0K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-07-10T22:35:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.4f362526d6b20b0dcff0677e98a544e5 |
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: 2026-07-10T22:35:00.000Z.
First archived: 2026-07-10T22:36:52.064Z. 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; Orangeburg, SC; Berkeley, SC; Dorchester, SC; Robeson, NC; Dillon, SC; Florence, SC; Marion, SC and 5 more areas |
| Headline | Severe Thunderstorm Warning issued July 10 at 6:35PM EDT until July 10 at 6:45PM EDT by NWS Columbia SC |
| Expires | 2026-07-10T18:45:00-04:00 |
| SenderName | NWS Columbia SC |
| HasExactCoords | true |
| MergedCount | 9 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.4f362526d6b20b0dcff0677e98a544e5f8af0527.002.1","noaa_urn:oid:2.49.0.1.840.0.870226962859d34dac545bb764185c64b14fb5f8.001.1","noaa_urn:oid:2.49.0.1.840.0.613653ba1c7e8dcf44fe63e50cf4e455f54b7196.001.1","noaa_urn:oid:2.49.0.1.840.0.48f9ef1b441168659d50410fe27e62eaa3d5231b.001.1","noaa_urn:oid:2.49.0.1.840.0.c9e74bd7dee6ce67d6217c1c35d7ac5fa0377fc5.001.1","noaa_urn:oid:2.49.0.1.840.0.828ce2d08006c6c473f4b90736b5779e07100a8f.001.1","noaa_urn:oid:2.49.0.1.840.0.31a4cb83452b054479f07910d8002af134bd9c45.002.1","noaa_urn:oid:2.49.0.1.840.0.54236cc4c69c25c0ea4ae7fa23d4db46567790d1.001.1","noaa_urn:oid:2.49.0.1.840.0.9a03662cef0027fdca9c4b73e7ff50b0eb409bff.002.1"] |
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.
Review the area, threshold and delivery channel in your account.
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