Right now
The most recent data we hold from SPC arrived 16 hours 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 21 days ago.
What the source measured
SPC reported: Wind UNK kt near 1 S Camden, Preble, OH. Several trees down just south of Camden. Time estimated from Radar. (ILN)
Urban PEI: 620,360 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 41 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 v4. Rows carrying other versions were judged by different rules and are not directly comparable.
Event Data
| Type | Severe Weather |
| Severity | Medium |
| Calamity Score (ours) | 41 / 100 |
| Legacy data-support index | 0.85/1 |
| Coordinates | 39.6200, -84.6500 |
| Nearest City | Oxford (15 km) |
| Urban exposure index (PEI) | 620.4K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-09-05T01:20:51.974Z |
| Source | https://www.spc.noaa.gov/climo/reports/today.html |
Physical priority index · v4 (historical). 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: 2026-09-05T01:20:51.974Z.
First archived: 2026-09-04T23:48:30.009Z. 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 | 1 S Camden |
| County | Preble |
| State | OH |
| Comments | Several trees down just south of Camden. Time estimated from Radar. (ILN) |
| Iem TypeSummary | D |
| Iem City | 1 S Camden |
| Iem County | Preble |
| Iem State | OH |
| Iem Wfo | ILN |
| Iem Remark | Several trees down just south of Camden. Time estimated from Radar. |
| MergedSources | [{"id":"iem_D_39.620_-84.650_1788553620000","source":"iem","severity":"low","severityValue":25,"timestamp":1788553620000,"latitude":39.62,"longitude":-84.65}] |
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.
Review the area, threshold and delivery channel in your account.
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