Right now
The most recent data we hold from SPC arrived 27 minutes ago, and this point is not in it. We record detections, not passes: an absence is not proof that nothing is there.
Reported by SPC 185 days ago.
What the source measured
SPC reported: Wind UNK kt near Dunlap, Sequatchie, TN. Several trees down across the county. (MRX)
Urban PEI: 371,216 within a heuristic 50 km radius; not unique people.
How we know
2 recorded sources include SPC; independence is not established by this count.
Our own score for this event is 43 out of 100.
This is our versioned heuristic index, not source severity or a calibrated probability. Urban PEI does not count unique people.
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 |
| Legacy data-support index | 0.87/1 |
| Coordinates | 35.3700, -85.3900 |
| Nearest City | East Chattanooga (36 km) |
| Urban exposure index (PEI) | 371.2K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-03-16T06:25:00.000Z |
| Source | https://www.spc.noaa.gov/climo/reports/today.html |
Physical priority index · v1. Heuristic priority, not calibrated probability, predictive accuracy or damage. The legacy data-support index combines assigned source support and field availability. Urban PEI is distance-weighted and does not count unique people; zero does not establish that nobody is present. Model cards.
Source and revision timeline
Source: spc. Occurrence: 2026-03-16T06:25:00.000Z.
First archived: 2026-03-16T11:56:35.483Z. Material modification: not recorded.
Retained revisions are prospective; earlier versions may be unavailable. No revision entry does not prove that a record never changed.
Score Breakdown
Technical Details
| ReportType | wind |
| Speed | UNK |
| Location | Dunlap |
| County | Sequatchie |
| State | TN |
| Comments | Several trees down across the county. (MRX) |
| Iem TypeSummary | D |
| Iem City | Dunlap |
| Iem County | Sequatchie |
| Iem State | TN |
| Iem Wfo | MRX |
| Iem Remark | Several trees down across the county. |
| MergedSources | [{"id":"iem_D_35.370_-85.390_1773642300000","source":"iem","severity":"low","severityValue":25,"timestamp":1773642300000,"latitude":35.37,"longitude":-85.39}] |
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.
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