This alert expired on 14 August 2026 at 01:00 UTC. It is kept here as a record.
It is the 4th strongest of the 40 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 August 13 at 6:16PM EDT until August 13 at 9:00PM EDT by NWS Morristown TN
An estimated 61,062 people live within 50 km of this point.
Nearby, since 16 March 2026
- May 28, 2026 · score 39 · 11.9 km
- May 28, 2026 · score 39 · 12.7 km
- June 28, 2026 · score 34 · 23.1 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 78 % 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 | 78% |
| Coordinates | 35.9544, -83.1448 |
| Nearest City | Morristown (31 km) |
| Population Exposed | 61.1K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-08-13T22:16:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Flash Flood Warning_noaa_urn:oid:2.49.0.1.840.0.362daad4fcc74d04aa31f132fe0457ce |
Score Breakdown
Technical Details
| Event | Flash Flood Warning |
| Urgency | Immediate |
| Certainty | Likely |
| AreaDesc | Cocke, TN; Cocke, TN; Hamblen, TN; Jefferson, TN |
| Headline | Flash Flood Warning issued August 13 at 6:16PM EDT until August 13 at 9:00PM EDT by NWS Morristown TN |
| Expires | 2026-08-13T21:00:00-04:00 |
| SenderName | NWS Morristown TN |
| HasExactCoords | true |
| MergedCount | 2 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.362daad4fcc74d04aa31f132fe0457ce1896907c.001.1","noaa_urn:oid:2.49.0.1.840.0.b2b22d0b2b7fbf6bf7e329ef97a13f893e8033a9.001.1"] |
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 in this area?
Calamity.live data shows a weather event with CalamityScore 39/100 (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.