Reported by SPC 170 days ago.
No stronger detection stands among the 58 recorded within 20 km of this point since 16 March 2026 — 30 others scored the same. 16 more were recorded here in the fortnight before it.
What the source measured
SPC reported: Wind UNK kt near 3 NNE Lake Forest, Knox, TN. Several trees down. (MRX)
An estimated 286,915 people live within 50 km of this point.
Nearby, since 16 March 2026
- May 25, 2026 · score 43 · 7.8 km
- June 8, 2026 · score 43 · 9.2 km
- May 20, 2026 · score 43 · 10.7 km
How we know
Confirmed by 3 independent sources, including SPC.
Our own score for this event is 43 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) | 43 / 100 |
| Our confidence | 91% |
| Coordinates | 35.9600, -83.8500 |
| Nearest City | Knoxville (6 km) |
| Population Exposed | 286.9K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-03-16T08:08:00.000Z |
| Source | https://www.spc.noaa.gov/climo/reports/today.html |
Score Breakdown
Technical Details
| ReportType | wind |
| Speed | UNK |
| Location | 3 NNE Lake Forest |
| County | Knox |
| State | TN |
| Comments | Several trees down. (MRX) |
| Iem TypeSummary | N |
| Iem Magnitude | 77 |
| Iem Unit | MPH |
| Iem City | 3 ESE Wears Valley |
| Iem County | Sevier |
| Iem State | TN |
| Iem Wfo | MRX |
| Iem Remark | Non-thunderstorm mountain winds first exceeded high wind criteria at the 11 pm observation with 61 mph, reached a preliminary peak of 77 mph at the 2 am observation, and at 3 am receded to 72 mph. The |
| MergedSources | [{"id":"iem_D_35.960_-83.850_1773648480000","source":"iem","severity":"low","severityValue":25,"timestamp":1773648480000,"latitude":35.96,"longitude":-83.85},{"id":"iem_N_35.700_-83.610_1773644400000","source":"iem","severity":"low","severityValue":25,"timestamp":1773644400000,"latitude":35.7,"longitude":-83.61}] |
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 Knoxville?
Calamity.live data shows a weather event with CalamityScore 43/100, near Knoxville (United States), based on data from spc. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.