Reported by SPC today.
No stronger detection stands among the 77 recorded within 20 km of this point since 22 March 2026 — 10 others scored the same. Another comparable one was recorded here earlier the same day.
What the source measured
SPC reported: Wind 60 kt near Union Center, Meade, SD. (UNR)
How we know
Confirmed by 6 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 | 44.5700, -102.6700 |
| Nearest City | Rapid City (70 km) |
| Impact Tier | minor |
| Timestamp | 2026-08-31T01:35:36.929Z |
| Source | https://www.spc.noaa.gov/climo/reports/today.html |
Score Breakdown
Technical Details
| ReportType | wind |
| Speed | 60 |
| Location | Union Center |
| County | Meade |
| State | SD |
| Comments | (UNR) |
| Iem TypeSummary | G |
| Iem Magnitude | 60 |
| Iem Unit | mph |
| Iem City | Union Center |
| Iem County | Meade |
| Iem State | SD |
| Iem Wfo | UNR |
| MergedSources | [{"id":"iem_G_44.700_-102.900_1788130200000","source":"iem","severity":"low","severityValue":25,"timestamp":1788130200000,"latitude":44.7,"longitude":-102.9},{"id":"iem_G_44.700_-102.900_1788130800000","source":"iem","severity":"low","severityValue":25,"timestamp":1788130800000,"latitude":44.7,"longitude":-102.9},{"id":"iem_G_44.560_-102.720_1788130740000","source":"iem","severity":"low","severityValue":25,"timestamp":1788130740000,"latitude":44.56,"longitude":-102.72},{"id":"iem_G_44.700_-102.900_1788130500000","source":"iem","severity":"low","severityValue":25,"timestamp":1788130500000,"latitude":44.7,"longitude":-102.9},{"id":"iem_G_44.570_-102.670_1788130800000","source":"iem","severity":"low","severityValue":25,"timestamp":1788130800000,"latitude":44.57,"longitude":-102.67}] |
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.