Right now
The most recent data we hold from NOAA arrived 9 minutes ago, and this point is not in it. We record detections, not passes: an absence is not proof that nothing is there.
One other detection within 20 km in the last 24 hours, 12 km from here.
This alert expired on 16 March 2026 at 11:00 UTC. It is kept here as a record.
It is the 12th strongest of the 55 detections recorded within 20 km of this point since 16 March 2026. Another comparable one was recorded here earlier the same day. 18 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Watch issued March 16 at 4:43AM EDT until March 16 at 7:00AM EDT by NWS Morristown TN
An estimated 278,730 people live within 50 km of this point.
Nearby, since 16 March 2026
- July 28, 2026 · score 43 · 0.0 km
- July 27, 2026 · score 43 · 0.0 km
- July 22, 2026 · score 43 · 0.0 km
How we know
Confirmed by 8 independent sources, including NOAA.
Our own score for this event is 43 out of 100, at 88 % 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 | 88% |
| Coordinates | 35.5000, -86.6000 |
| Nearest City | Shelbyville (13 km) |
| Population Exposed | 278.7K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-03-16T08:43:00.000Z |
| Source | https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.86249213f72d8f00968d9026033cb03e3430de6f.003.1 |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Watch |
| Urgency | Future |
| Certainty | Possible |
| AreaDesc | Blount, TN; Carter, TN; Cocke, TN; Grainger, TN; Greene, TN; Hamblen, TN; Hancock, TN; Hawkins, TN; Jefferson, TN; Johnson, TN; Sevier, TN; Sullivan, TN; Unicoi, TN; Washington, TN; Lee, VA; Russell, VA; Scott, VA; Washington, VA; Wise, VA; City of Bristol, VA; City of Norton, VA |
| Headline | Severe Thunderstorm Watch issued March 16 at 4:43AM EDT until March 16 at 7:00AM EDT by NWS Morristown TN |
| Expires | 2026-03-16T07:00:00-04:00 |
| SenderName | NWS Morristown TN |
| HasExactCoords | false |
| Spc ReportType | wind |
| Spc Speed | UNK |
| Spc Location | 7 NNE Harvest |
| Spc County | Madison |
| Spc State | AL |
| Spc Comments | Tree down at this location. (HUN) |
| Iem TypeSummary | D |
| Iem City | Columbia |
| Iem County | Maury |
| Iem State | TN |
| Iem Wfo | OHX |
| Iem Remark | Around 6500 customers without power across Maury County. Tree limbs and powerlines reported down across roadways with some damage to homes reported. |
Safety Information
Always follow official guidance from your local emergency management agency. This platform provides scientific monitoring data and is not a substitute for official warnings. If you are in immediate danger, contact your local emergency number.
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 Shelbyville?
Calamity.live data shows a weather event with CalamityScore 43/100, near Shelbyville (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.