This alert expired on 6 August 2026 at 23:30 UTC. It is kept here as a record.
It is the 10th strongest of the 17 detections recorded within 20 km of this point since 22 May 2026. Another comparable one was recorded here earlier the same day. One more was recorded here in the fortnight before it.
What the source measured
NOAA reported: Flash Flood Warning issued August 6 at 4:30PM EDT until August 6 at 7:30PM EDT by NWS Columbia SC
An estimated 23,260 people live within 50 km of this point.
Nearby, since 22 May 2026
- May 28, 2026 · score 34 · 4.2 km
- May 27, 2026 · score 34 · 4.2 km
- May 26, 2026 · score 34 · 4.2 km
How we know
Confirmed by 18 independent sources, including NOAA.
Our own score for this event is 28 out of 100, at 90 % 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) | 28 / 100 |
| Our confidence | 90% |
| Coordinates | 34.1219, -81.8088 |
| Nearest City | Greenwood (33 km) |
| Population Exposed | 23.3K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-08-06T20:30:00.000Z |
Score Breakdown
Technical Details
| Event | Flash Flood Warning |
| Urgency | Immediate |
| Certainty | Likely |
| AreaDesc | Lexington, SC; Newberry, SC; Saluda, SC |
| Headline | Flash Flood Warning issued August 6 at 4:30PM EDT until August 6 at 7:30PM EDT by NWS Columbia SC |
| Expires | 2026-08-06T19:30:00-04:00 |
| SenderName | NWS Columbia SC |
| HasExactCoords | true |
| Iem TypeSummary | D |
| Iem City | 8 WSW Dreher Island SP |
| Iem County | Saluda |
| Iem State | SC |
| Iem Wfo | CAE |
| Iem Remark | Corrects time previous tstm wnd dmg report from 8 WSW Dreher Island SP. Saluda County Dispatch reported trees down near Prosperity Highway. Time estimated by radar. |
| MergedSources | [{"id":"iem_D_33.960_-81.240_1786043880000","source":"iem","severity":"low","severityValue":25,"timestamp":1786043880000,"latitude":33.96,"longitude":-81.24},{"id":"iem_F_33.990_-81.030_1786041600000","source":"iem","severity":"low","severityValue":25,"timestamp":1786041600000,"latitude":33.99,"longitude":-81.03},{"id":"iem_F_33.980_-81.040_1786043040000","source":"iem","severity":"low","severityValue":25,"timestamp":1786043040000,"latitude":33.98,"longitude":-81.04},{"id":"iem_F_34.000_-81.020_1786042080000","source":"iem","severity":"low","severityValue":25,"timestamp":1786042080000,"latitude":34,"longitude":-81.02},{"id":"iem_D_34.100_-81.030_1786037940000","source":"iem","severity":"low","severityValue":25,"timestamp":1786037940000,"latitude":34.1,"longitude":-81.03},{"id":"iem_F_33.490_-82.030_1786045320000","source":"iem","severity":"low","severityValue":25,"timestamp":1786045320000,"latitude":33.49,"longitude":-82.03},{"id":"iem_F_33.540_-81.990_1786045020000","source":"iem","severity":"low","severityValue":25,"timestamp":1786045020000,"latitude":33.54,"longitude":-81.99},{"id":"iem_D_33.690_-82.410_1786041600000","source":"iem","severity":"low","severityValue":25,"timestamp":1786041600000,"latitude":33.69,"longitude":-82.41},{"id":"iem_D_33.710_-82.350_1786042200000","source":"iem","severity":"low","severityValue":25,"timestamp":1786042200000,"latitude":33.71,"longitude":-82.35},{"id":"iem_F_33.990_-81.030_1786042680000","source":"iem","severity":"low","severityValue":25,"timestamp":1786042680000,"latitude":33.99,"longitude":-81.03},{"id":"iem_D_34.330_-81.610_1786048500000","source":"iem","severity":"low","severityValue":25,"timestamp":1786048500000,"latitude":34.33,"longitude":-81.61},{"id":"iem_D_33.880_-81.220_1786043160000","source":"iem","severity":"low","severityValue":25,"timestamp":1786043160000,"latitude":33.88,"longitude":-81.22},{"id":"iem_D_34.050_-81.540_1786044660000","source":"iem","severity":"low","severityValue":25,"timestamp":1786044660000,"latitude":34.05,"longitude":-81.54},{"id":"iem_F_33.910_-81.070_1786043640000","source":"iem","severity":"low","severityValue":25,"timestamp":1786043640000,"latitude":33.91,"longitude":-81.07},{"id":"iem_F_33.990_-81.030_1786043640000","source":"iem","severity":"low","severityValue":25,"timestamp":1786043640000,"latitude":33.99,"longitude":-81.03},{"id":"iem_D_33.740_-82.320_1786042620000","source":"iem","severity":"low","severityValue":25,"timestamp":1786042620000,"latitude":33.74,"longitude":-82.32},{"id":"iem_D_34.050_-81.540_1786046640000","source":"iem","severity":"low","severityValue":25,"timestamp":1786046640000,"latitude":34.05,"longitude":-81.54}] |
Safety Information
During flooding: never walk, swim, or drive through floodwaters. Six inches of moving water can knock you down, and one foot of water can sweep away a vehicle. Move to higher ground if waters rise. After flooding, avoid contact with floodwater which may contain sewage, chemicals, or debris. Follow local emergency service guidance.
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 28/100, near Greenwood (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 188 scientific monitoring sources.