This alert expired on 12 July 2026 at 10:15 UTC. It is kept here as a record.
It is the 2nd strongest of the 31 detections recorded within 20 km of this point since 16 March 2026. The last comparable one was on 22 June 2026.
What the source measured
NOAA reported: Flash Flood Warning issued July 12 at 3:10AM EDT until July 12 at 6:15AM EDT by NWS Morristown TN
An estimated 43,898 people live within 50 km of this point.
Nearby, since 16 March 2026
- May 25, 2026 · score 22 · 5.6 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 34 out of 100, at 82 % 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) | 34 / 100 |
| Our confidence | 82% |
| Coordinates | 35.1775, -84.3425 |
| Nearest City | Cleveland (49 km) |
| Population Exposed | 43.9K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-07-12T07:10:00.000Z |
| Source | https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.8ac529cdd83abcd1a25509e6917164d336321d76.001.1 |
Score Breakdown
Technical Details
| Event | Flash Flood Warning |
| Urgency | Immediate |
| Certainty | Likely |
| AreaDesc | Cherokee, NC; Polk, TN |
| Headline | Flash Flood Warning issued July 12 at 3:10AM EDT until July 12 at 6:15AM EDT by NWS Morristown TN |
| Expires | 2026-07-12T06:15:00-04:00 |
| SenderName | NWS Morristown TN |
| 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 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 34/100 (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.