This alert expired on 28 May 2026 at 12:30 UTC. It is kept here as a record.
No stronger detection stands among the 37 recorded within 20 km of this point since 16 March 2026 — 16 others scored the same. The last comparable one was on 16 March 2026.
What the source measured
NOAA reported: Flash Flood Warning issued May 28 at 5:36AM EDT until May 28 at 8:30AM 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 · 5.0 km
- August 13, 2026 · score 39 · 11.9 km
- September 3, 2026 · score 32 · 24.3 km
How we know
Confirmed by 3 independent sources, including NOAA.
Our own score for this event is 39 out of 100, at 91 % 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 | 91% |
| Coordinates | 36.0557, -83.1014 |
| Nearest City | Morristown (24 km) |
| Population Exposed | 61.1K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-05-28T09:36:00.000Z |
| Source | https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.8e1997304a0fb0d3d073e98e11e2b950f30ac45a.001.1 |
Score Breakdown
Technical Details
| Event | Flash Flood Warning |
| Urgency | Immediate |
| Certainty | Likely |
| AreaDesc | Cocke, TN |
| Headline | Flash Flood Warning issued May 28 at 5:36AM EDT until May 28 at 8:30AM EDT by NWS Morristown TN |
| Expires | 2026-05-28T08:30:00-04:00 |
| SenderName | NWS Morristown TN |
| HasExactCoords | true |
| Iem TypeSummary | F |
| Iem City | 1 ENE Bybee |
| Iem County | Cocke |
| Iem State | TN |
| Iem Wfo | MRX |
| Iem Remark | Several roads reported flooded in North Cocke County. |
| MergedSources | [{"id":"iem_F_36.070_-83.180_1779962700000","source":"iem","severity":"low","severityValue":25,"timestamp":1779962700000,"latitude":36.07,"longitude":-83.18},{"id":"iem_F_36.050_-83.170_1779966000000","source":"iem","severity":"low","severityValue":25,"timestamp":1779966000000,"latitude":36.05,"longitude":-83.17}] |
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 Morristown?
Calamity.live data shows a weather event with CalamityScore 39/100, near Morristown (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.