Right now
The most recent data we hold from NOAA arrived 10 minutes ago, and this point is not in it. We record detections, not passes: an absence is not proof that nothing is there.
Nothing else has been detected within 20 km in the last 24 hours.
This alert expired on 26 May 2026 at 04:15 UTC. It is kept here as a record.
It is the 58th strongest of the 73 detections recorded within 20 km of this point since 16 March 2026. Another comparable one was recorded here earlier the same day. 2 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Flash Flood Warning issued May 25 at 9:35PM EDT until May 26 at 12:15AM EDT by NWS Greenville-Spartanburg SC
An estimated 95,056 people live within 50 km of this point.
Nearby, since 16 March 2026
- September 7, 2026 · score 49 · 19.9 km
- September 6, 2026 · score 49 · 19.9 km
- July 18, 2026 · score 43 · 24.7 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 39 out of 100, at 80 % 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 | 80% |
| Coordinates | 35.4273, -82.7687 |
| Nearest City | Asheville (28 km) |
| Population Exposed | 95.1K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-05-26T01:35:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Flash Flood Warning_noaa_urn:oid:2.49.0.1.840.0.54909a2b6e1e49d2b8ab81b744c5829c |
Score Breakdown
Technical Details
| Event | Flash Flood Warning |
| Urgency | Immediate |
| Certainty | Likely |
| AreaDesc | Henderson, NC; Clay, NC; Alexander, NC; Caldwell, NC and 2 more areas |
| Headline | Flash Flood Warning issued May 25 at 9:35PM EDT until May 26 at 12:15AM EDT by NWS Greenville-Spartanburg SC |
| Expires | 2026-05-26T00:15:00-04:00 |
| SenderName | NWS Greenville-Spartanburg SC |
| HasExactCoords | true |
| MergedCount | 5 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.54909a2b6e1e49d2b8ab81b744c5829cc84a1b1b.001.1","noaa_urn:oid:2.49.0.1.840.0.8ac0c3b64f4ff69b192453221c156747418bfae7.001.1","noaa_urn:oid:2.49.0.1.840.0.496d24c5934788f34316f4a4aff3e033804132a9.001.1","noaa_urn:oid:2.49.0.1.840.0.d518fb17c9983f4b3e93579736a1ca5eeaa7ea6b.001.1","noaa_urn:oid:2.49.0.1.840.0.824898d4b4be2764c533ceab598076b1222c957a.001.1"] |
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 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 near Asheville?