Reported by SPC today.
No stronger detection stands among the 46 recorded within 20 km of this point since 15 March 2026 — 9 others scored the same. The last comparable one was on 30 August 2026.
What the source measured
SPC reported: Wind 60 kt near Usta, Perkins, SD. (UNR)
How we know
Confirmed by 9 independent sources, including SPC.
Our own score for this event is 22 out of 100, at 66 % 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 | 66% |
| Coordinates | 45.2100, -102.1600 |
| Nearest City | Rapid City (152 km) |
| Impact Tier | minor |
| Timestamp | 2026-08-31T01:23:29.963Z |
| Source | https://www.spc.noaa.gov/climo/reports/today.html |
Score Breakdown
Technical Details
| ReportType | wind |
| Speed | 60 |
| Location | Usta |
| County | Perkins |
| State | SD |
| Comments | (UNR) |
| Iem TypeSummary | G |
| Iem Magnitude | 53 |
| Iem Unit | mph |
| Iem City | 1 NNE Faith |
| Iem County | Meade |
| Iem State | SD |
| Iem Wfo | UNR |
| MergedSources | [{"id":"iem_G_45.210_-102.160_1788131760000","source":"iem","severity":"low","severityValue":25,"timestamp":1788131760000,"latitude":45.21,"longitude":-102.16},{"id":"iem_G_45.260_-102.320_1788131100000","source":"iem","severity":"low","severityValue":25,"timestamp":1788131100000,"latitude":45.26,"longitude":-102.32},{"id":"iem_G_45.260_-102.320_1788130800000","source":"iem","severity":"low","severityValue":25,"timestamp":1788130800000,"latitude":45.26,"longitude":-102.32},{"id":"iem_G_45.260_-102.320_1788132900000","source":"iem","severity":"low","severityValue":25,"timestamp":1788132900000,"latitude":45.26,"longitude":-102.32},{"id":"iem_G_45.440_-102.170_1788133800000","source":"iem","severity":"low","severityValue":25,"timestamp":1788133800000,"latitude":45.44,"longitude":-102.17},{"id":"iem_G_45.210_-102.160_1788133560000","source":"iem","severity":"low","severityValue":25,"timestamp":1788133560000,"latitude":45.21,"longitude":-102.16},{"id":"iem_G_45.440_-102.170_1788133200000","source":"iem","severity":"low","severityValue":25,"timestamp":1788133200000,"latitude":45.44,"longitude":-102.17},{"id":"iem_G_45.040_-102.020_1788132900000","source":"iem","severity":"low","severityValue":25,"timestamp":1788132900000,"latitude":45.04,"longitude":-102.02}] |
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 191 scientific monitoring sources.