This alert expired on 13 August 2026 at 22:30 UTC. It is kept here as a record.
It is the strongest of the 15 detections recorded within 20 km of this point since 13 March 2026. Another comparable one was recorded here earlier the same day. 4 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued August 13 at 5:28PM EDT until August 13 at 6:30PM EDT by NWS Charleston SC
An estimated 64,119 people live within 50 km of this point.
Nearby, since 13 March 2026
- March 13, 2026 · score 34 · 14.2 km
How we know
Confirmed by 16 independent sources, including NOAA.
Our own score for this event is 39 out of 100, at 87 % 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) | 39 / 100 |
| Our confidence | 87% |
| Coordinates | 32.0455, -81.9290 |
| Nearest City | Hinesville (38 km) |
| Population Exposed | 64.1K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-08-13T21:28:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.ee3c44acc887a552911e57a22c2d3d99 |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Chatham, GA; Effingham, GA; Beaufort, SC; Colleton, SC; Hampton, SC; Jasper, SC; Appling, GA; Bacon, GA; Pierce, GA; Wayne, GA; Effingham, GA; Screven, GA; Allendale, SC; Hampton, SC; Jasper, SC and 3 more areas |
| Headline | Severe Thunderstorm Warning issued August 13 at 5:28PM EDT until August 13 at 6:30PM EDT by NWS Charleston SC |
| Expires | 2026-08-13T18:30:00-04:00 |
| SenderName | NWS Charleston SC |
| HasExactCoords | true |
| MergedCount | 6 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.ee3c44acc887a552911e57a22c2d3d99f17f6b8d.001.1","noaa_urn:oid:2.49.0.1.840.0.47b3bff7729efd643dfe32d9ad2bd18b86d98db3.001.1","noaa_urn:oid:2.49.0.1.840.0.5785f3942d1c0f595068cbb34fbfa13e5ff0ff73.002.1","noaa_urn:oid:2.49.0.1.840.0.b5e0eb32471fb24bce5354abc2004bbf4c7c4b2d.001.1","noaa_urn:oid:2.49.0.1.840.0.6826e9d276749f3184a513ab384a955976d51f49.001.1","noaa_urn:oid:2.49.0.1.840.0.717352bf01a39f0854a15ee930c9eff9246ec719.001.1"] |
| Iem TypeSummary | D |
| Iem City | 1 NW Swainsboro |
| Iem County | Emanuel |
| Iem State | GA |
| Iem Wfo | FFC |
| Iem Remark | Public reports a large tree and power lines down along Gumlog Road near the intersection with Brown Street. |
| MergedSources | [{"id":"iem_I_32.100_-81.630_1786638840000","source":"iem","severity":"low","severityValue":25,"timestamp":1786638840000,"latitude":32.1,"longitude":-81.63},{"id":"iem_D_32.580_-82.350_1786649400000","source":"iem","severity":"low","severityValue":25,"timestamp":1786649400000,"latitude":32.58,"longitude":-82.35},{"id":"iem_D_32.510_-81.780_1786651680000","source":"iem","severity":"low","severityValue":25,"timestamp":1786651680000,"latitude":32.51,"longitude":-81.78},{"id":"iem_D_32.380_-82.100_1786651020000","source":"iem","severity":"low","severityValue":25,"timestamp":1786651020000,"latitude":32.38,"longitude":-82.1},{"id":"iem_D_32.400_-82.060_1786651680000","source":"iem","severity":"low","severityValue":25,"timestamp":1786651680000,"latitude":32.4,"longitude":-82.06},{"id":"iem_I_31.780_-81.440_1786637040000","source":"iem","severity":"low","severityValue":25,"timestamp":1786637040000,"latitude":31.78,"longitude":-81.44},{"id":"iem_G_32.480_-81.740_1786652040000","source":"iem","severity":"low","severityValue":25,"timestamp":1786652040000,"latitude":32.48,"longitude":-81.74},{"id":"iem_D_32.450_-82.070_1786650720000","source":"iem","severity":"low","severityValue":25,"timestamp":1786650720000,"latitude":32.45,"longitude":-82.07},{"id":"iem_G_32.370_-82.080_1786651080000","source":"iem","severity":"low","severityValue":25,"timestamp":1786651080000,"latitude":32.37,"longitude":-82.08},{"id":"iem_D_32.380_-82.090_1786651320000","source":"iem","severity":"low","severityValue":25,"timestamp":1786651320000,"latitude":32.38,"longitude":-82.09},{"id":"iem_D_32.440_-81.970_1786651680000","source":"iem","severity":"low","severityValue":25,"timestamp":1786651680000,"latitude":32.44,"longitude":-81.97},{"id":"iem_G_32.390_-82.040_1786651380000","source":"iem","severity":"low","severityValue":25,"timestamp":1786651380000,"latitude":32.39,"longitude":-82.04},{"id":"iem_I_31.940_-81.750_1786646040000","source":"iem","severity":"low","severityValue":25,"timestamp":1786646040000,"latitude":31.94,"longitude":-81.75},{"id":"iem_I_31.900_-81.600_1786644240000","source":"iem","severity":"low","severityValue":25,"timestamp":1786644240000,"latitude":31.9,"longitude":-81.6},{"id":"iem_D_32.610_-82.350_1786649100000","source":"iem","severity":"low","severityValue":25,"timestamp":1786649100000,"latitude":32.61,"longitude":-82.35}] |
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 39/100 (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.