Right now
The most recent data we hold from SPC arrived 4 minutes ago, and this point is not in it. We record detections, not passes: an absence is not proof that nothing is there.
4 other detections within 20 km in the last 24 hours, the nearest <1 km from here.
Reported by SPC today.
No stronger detection stands among the 35 recorded within 20 km of this point since 1 April 2026 — 8 others scored the same. Another comparable one was recorded here earlier the same day. 9 more were recorded here in the fortnight before it.
What the source measured
SPC reported: Wind UNK kt near 2 ENE Cloverdale, Botetourt, VA. Tree down on Cloverdale Road near its intersection with Ridge Road. (RNK)
Urban PEI: 194,580 within a heuristic 50 km radius; not unique people.
Nearby, since 1 April 2026
- September 21, 2026 · score 37 · 0.0 km
- September 12, 2026 · score 37 · 14.1 km
How we know
2 recorded sources include SPC; independence is not established by this count.
Our own score for this event is 37 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 v5. Rows carrying other versions were judged by different rules and are not directly comparable.
Event Data
| Type | Severe Weather |
| Severity | Medium |
| Calamity Score (ours) | 37 / 100 |
| Legacy data-support index | 0.77/1 |
| Coordinates | 37.3800, -79.8900 |
| Nearest City | Roanoke (13 km) |
| Urban exposure index (PEI) | 194.6K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-09-21T18:54:00.000Z |
| Source | https://www.spc.noaa.gov/climo/reports/today.html |
Physical priority index · v5. 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: 2026-09-21T18:54:00.000Z.
First archived: 2026-09-21T20:24:53.391Z. Material modification: not recorded.
Retained revisions are prospective; earlier versions may be unavailable. No revision entry does not prove that a record never changed.
2026-09-21T20:41:29.509Z · data_change
Index 37 → 37; severity medium → medium; version 5 → 5.
Score Breakdown
Technical Details
| ReportType | wind |
| Speed | UNK |
| Location | 2 ENE Cloverdale |
| County | Botetourt |
| State | VA |
| Comments | Tree down on Cloverdale Road near its intersection with Ridge Road. (RNK) |
| Iem TypeSummary | D |
| Iem City | 2 ENE Cloverdale |
| Iem County | Botetourt |
| Iem State | VA |
| Iem Wfo | RNK |
| Iem Remark | Tree down on Cloverdale Road near its intersection with Ridge Road. |
| MergedSources | [{"id":"iem_D_37.540_-80.540_1790010780000","source":"iem","severity":"low","severityValue":25,"timestamp":1790010780000,"latitude":37.54,"longitude":-80.54},{"id":"iem_D_37.380_-79.890_1790016840000","source":"iem","severity":"low","severityValue":25,"timestamp":1790016840000,"latitude":37.38,"longitude":-79.89}] |
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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