Reported by SPC today.
It is the 2nd strongest of the 141 detections recorded within 20 km of this point since 17 March 2026. Another comparable one was recorded here earlier the same day.
What the source measured
SPC reported: Wind 65 kt near 5 ESE Owanka, Pennington, SD. Along Base Line Rd. (UNR)
How we know
One source: SPC. Not yet confirmed by a second, independent source.
Our own score for this event is 22 out of 100, at 40 % confidence.
The score is ours, computed from intensity, exposed population and local history — not the source’s.
Event Data
| Type | Severe weather |
| Severity | medium |
| Calamity Score (ours) | 22 / 100 |
| Our confidence | 40% |
| Coordinates | 43.9800, -102.4900 |
| Nearest City | Rapid City (60 km) |
| Impact Tier | minor |
| Timestamp | 2026-08-31T11:34:53.314Z |
| Source | https://www.spc.noaa.gov/climo/reports/today.html |
Score Breakdown
Technical Details
| ReportType | wind |
| Speed | 65 |
| Location | 5 ESE Owanka |
| County | Pennington |
| State | SD |
| Comments | Along Base Line Rd. (UNR) |
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 10 February 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.
Calamity.live data shows a weather event with CalamityScore 22/100, near Rapid City (United States), based on data from spc. Source: Calamity.live, a platform aggregating real-time data from 188 scientific monitoring sources.