This alert expired on 30 June 2026 at 02:45 UTC. It is kept here as a record.
No stronger detection stands among the 57 recorded within 20 km of this point since 16 March 2026 — 27 others scored the same. Another comparable one was recorded here earlier the same day. 3 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Flash Flood Warning issued June 29 at 7:42PM EDT until June 29 at 10:45PM EDT by NWS Greenville-Spartanburg SC
An estimated 95,056 people live within 50 km of this point.
Nearby, since 16 March 2026
- June 30, 2026 · score 45 · 1.3 km
- May 26, 2026 · score 39 · 4.4 km
- July 19, 2026 · score 39 · 9.2 km
How we know
Confirmed by 14 independent sources, including NOAA.
Our own score for this event is 45 out of 100, at 91 % confidence.
The score is ours, computed from intensity, exposed population and local history — not the source’s.
Event Data
| Type | Severe weather |
| Severity | high |
| Calamity Score (ours) | 45 / 100 |
| Our confidence | 91% |
| Coordinates | 35.4114, -82.3871 |
| Nearest City | Asheville (26 km) |
| Population Exposed | 95.1K within 50 km |
| Impact Tier | severe |
| Timestamp | 2026-06-29T23:42:00.000Z |
| Source | https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.613c96bef8a0a3818443cc158eed93015dfaa467.001.1 |
Score Breakdown
Technical Details
| Event | Flash Flood Warning |
| Urgency | Immediate |
| Certainty | Likely |
| AreaDesc | Henderson, NC |
| Headline | Flash Flood Warning issued June 29 at 7:42PM EDT until June 29 at 10:45PM EDT by NWS Greenville-Spartanburg SC |
| Expires | 2026-06-29T22:45:00-04:00 |
| SenderName | NWS Greenville-Spartanburg SC |
| HasExactCoords | true |
| Spc ReportType | hail |
| Spc Speed | 200 |
| Spc Location | 5 NNW Dana |
| Spc County | Henderson |
| Spc State | NC |
| Spc Comments | (GSP) |
| Iem TypeSummary | D |
| Iem City | 2 WNW Easley |
| Iem County | Pickens |
| Iem State | SC |
| Iem Wfo | GSP |
| Iem Remark | Trees and power lines down on the west side of Easley. |
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 45/100, near Asheville (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 188 scientific monitoring sources.