This alert expired on 18 June 2026 at 22:30 UTC. It is kept here as a record.
It is the 13th strongest of the 21 detections recorded within 20 km of this point since 16 March 2026. The last comparable one was on 1 June 2026.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued June 18 at 6:05PM EDT until June 18 at 6:30PM EDT by NWS Columbia SC
Nearby, since 16 March 2026
- June 1, 2026 · score 34 · 10.2 km
- August 13, 2026 · score 34 · 13.4 km
- July 10, 2026 · score 43 · 18.5 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 22 out of 100, at 59 % confidence.
The score is ours, computed from intensity, exposed population and local history — not the source’s.
Event Data
| Type | Severe weather |
| Severity | medium |
| Calamity Score (ours) | 22 / 100 |
| Our confidence | 59% |
| Coordinates | 34.0402, -82.7958 |
| Nearest City | Anderson (53 km) |
| Impact Tier | minor |
| Timestamp | 2026-06-18T22:05:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.379311bd9fb7011855411ef98c0477a5 |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Columbia, GA; Lincoln, GA; Richmond, GA; Aiken, SC; Edgefield, SC; McCormick, SC; Saluda, SC; Clarke, GA; Greene, GA; Madison, GA; Oconee, GA; Oglethorpe, GA; Taliaferro, GA; Wilkes, GA; Banks, GA; Clarke, GA; Hall, GA; Jackson, GA; Lumpkin, GA; Madison, GA; Oconee, GA; White, GA |
| Headline | Severe Thunderstorm Warning issued June 18 at 6:05PM EDT until June 18 at 6:30PM EDT by NWS Columbia SC |
| Expires | 2026-06-18T18:30:00-04:00 |
| SenderName | NWS Columbia SC |
| HasExactCoords | true |
| MergedCount | 3 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.379311bd9fb7011855411ef98c0477a52b9327eb.002.1","noaa_urn:oid:2.49.0.1.840.0.29d717983dede93d04d502a385936efd00dcca11.002.1","noaa_urn:oid:2.49.0.1.840.0.46ec364f8353c39f0cb002b793c4bab38d40586b.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 10 February 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.
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 188 scientific monitoring sources.