This alert expired on 18 June 2026 at 23:03 UTC. It is kept here as a record.
It is the 2nd strongest of the 18 detections recorded within 20 km of this point since 12 March 2026. 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 June 18 at 6:53PM EDT until June 18 at 7:00PM EDT by NWS Charleston SC
Nearby, since 12 March 2026
- June 29, 2026 · score 22 · 8.0 km
- March 12, 2026 · score 34 · 12.4 km
- August 2, 2026 · score 16 · 12.6 km
How we know
Confirmed by 9 independent sources, including NOAA.
Our own score for this event is 22 out of 100, at 69 % 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 | 69% |
| Coordinates | 32.8914, -81.4345 |
| Nearest City | Statesboro (59 km) |
| Impact Tier | minor |
| Timestamp | 2026-06-18T22:53:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.d2549ac72a80b791b6aa7f0182d707b2 |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Screven, GA; Allendale, SC; Aiken, SC; Calhoun, SC; Edgefield, SC; Fairfield, SC; Lexington, SC; Newberry, SC; Orangeburg, SC; Richland, SC; Saluda, SC; Bryan, GA; Liberty, GA; Long, GA; McIntosh, GA |
| Headline | Severe Thunderstorm Warning issued June 18 at 6:53PM EDT until June 18 at 7:00PM EDT by NWS Charleston SC |
| Expires | 2026-06-18T19:03:00-04:00 |
| SenderName | NWS Charleston SC |
| HasExactCoords | true |
| MergedCount | 3 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.d2549ac72a80b791b6aa7f0182d707b21179bf02.001.1","noaa_urn:oid:2.49.0.1.840.0.4be2fa88c20ca7bd59db4367147267e6d7cd918c.001.1","noaa_urn:oid:2.49.0.1.840.0.d280f8adab9af91176645ce68f2447b0cbd8f4c3.001.1"] |
| Iem TypeSummary | D |
| Iem City | Robertville |
| Iem County | Jasper |
| Iem State | SC |
| Iem Wfo | CHS |
| Iem Remark | Jasper County Warning Point reported a tree down at the 10000 block of Cotton Hill Road. |
| MergedSources | [{"id":"iem_D_32.720_-80.800_1781816400000","source":"iem","severity":"low","severityValue":25,"timestamp":1781816400000,"latitude":32.72,"longitude":-80.8},{"id":"iem_D_32.840_-80.820_1781816940000","source":"iem","severity":"low","severityValue":25,"timestamp":1781816940000,"latitude":32.84,"longitude":-80.82},{"id":"iem_D_32.690_-80.850_1781816100000","source":"iem","severity":"low","severityValue":25,"timestamp":1781816100000,"latitude":32.69,"longitude":-80.85},{"id":"iem_D_32.480_-80.940_1781814720000","source":"iem","severity":"low","severityValue":25,"timestamp":1781814720000,"latitude":32.48,"longitude":-80.94},{"id":"iem_D_32.520_-81.270_1781813220000","source":"iem","severity":"low","severityValue":25,"timestamp":1781813220000,"latitude":32.52,"longitude":-81.27},{"id":"iem_D_32.690_-80.830_1781816220000","source":"iem","severity":"low","severityValue":25,"timestamp":1781816220000,"latitude":32.69,"longitude":-80.83},{"id":"iem_D_32.260_-81.330_1781812320000","source":"iem","severity":"low","severityValue":25,"timestamp":1781812320000,"latitude":32.26,"longitude":-81.33},{"id":"iem_D_32.590_-81.200_1781813940000","source":"iem","severity":"low","severityValue":25,"timestamp":1781813940000,"latitude":32.59,"longitude":-81.2}] |
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.