This alert expired on 30 May 2026 at 19:15 UTC. It is kept here as a record.
It is the 15th strongest of the 34 detections recorded within 20 km of this point since 12 March 2026. The last comparable one was on 30 April 2026.
What the source measured
NOAA reported: Flood Warning issued May 30 at 12:14PM EDT until May 30 at 3:15PM EDT by NWS Greenville-Spartanburg SC
An estimated 1,285,221 people live within 50 km of this point.
Nearby, since 12 March 2026
- March 13, 2026 · score 52 · 4.5 km
- March 12, 2026 · score 52 · 4.5 km
- August 6, 2026 · score 52 · 10.5 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 46 out of 100, at 81 % 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) | 46 / 100 |
| Our confidence | 81% |
| Coordinates | 35.1369, -80.5208 |
| Nearest City | Mint Hill (13 km) |
| Population Exposed | 1.3M within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-05-30T16:14:00.000Z |
Score Breakdown
Technical Details
| Event | Flood Warning |
| Urgency | Expected |
| Certainty | Likely |
| AreaDesc | Union, NC |
| Headline | Flood Warning issued May 30 at 12:14PM EDT until May 30 at 3:15PM EDT by NWS Greenville-Spartanburg SC |
| Expires | 2026-05-30T15:15:00-04:00 |
| SenderName | NWS Greenville-Spartanburg SC |
| HasExactCoords | true |
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 46/100, near Mint Hill (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 191 scientific monitoring sources.