This alert expired on 8 July 2026 at 03:30 UTC. It is kept here as a record.
It is the 2nd strongest of the 50 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 July 7 at 10:06PM EDT until July 7 at 11:30PM EDT by NWS Morristown TN
An estimated 286,915 people live within 50 km of this point.
Nearby, since 16 March 2026
- May 30, 2026 · score 43 · 6.1 km
- August 12, 2026 · score 43 · 13.1 km
- May 25, 2026 · score 43 · 16.4 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 43 out of 100, at 81 % 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) | 43 / 100 |
| Our confidence | 81% |
| Coordinates | 35.7000, -83.9758 |
| Nearest City | Maryville (7 km) |
| Population Exposed | 286.9K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-07-08T02:06:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Flash Flood Warning_noaa_urn:oid:2.49.0.1.840.0.a2793ae29332448edab01afe4665a127 |
Score Breakdown
Technical Details
| Event | Flash Flood Warning |
| Urgency | Immediate |
| Certainty | Likely |
| AreaDesc | Meigs, TN; Rhea, TN; Cocke, TN; Sevier, TN |
| Headline | Flash Flood Warning issued July 7 at 10:06PM EDT until July 7 at 11:30PM EDT by NWS Morristown TN |
| Expires | 2026-07-07T23:30:00-04:00 |
| SenderName | NWS Morristown TN |
| HasExactCoords | true |
| MergedCount | 2 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.a2793ae29332448edab01afe4665a12786cac33c.001.1","noaa_urn:oid:2.49.0.1.840.0.3c54edc843803fcb54b01092c169ed17e2d8f783.001.1"] |
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 Maryville?
Calamity.live data shows a weather event with CalamityScore 43/100, near Maryville (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.