Reported by SPC today.
It is the 2nd strongest of the 34 detections recorded within 20 km of this point since 3 April 2026. The last comparable one was on 17 August 2026.
What the source measured
SPC reported: Wind 59 kt near 1 ESE Ladner, Harding, SD. (UNR)
Nearby, since 3 April 2026
- June 7, 2026 · score 46 · 15.8 km
How we know
Confirmed by 5 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 | 45.8300, -103.7200 |
| Nearest City | Dickinson (137 km) |
| Impact Tier | minor |
| Timestamp | 2026-08-30T21:35:00.000Z |
| Source | https://www.spc.noaa.gov/climo/reports/today.html |
Score Breakdown
Technical Details
| ReportType | wind |
| Speed | 59 |
| Location | 1 ESE Ladner |
| County | Harding |
| State | SD |
| Comments | (UNR) |
| Iem TypeSummary | G |
| Iem Magnitude | 59 |
| Iem Unit | mph |
| Iem City | 1 ESE Ladner |
| Iem County | Harding |
| Iem State | SD |
| Iem Wfo | UNR |
| MergedSources | [{"id":"iem_G_46.350_-104.250_1788123960000","source":"iem","severity":"low","severityValue":25,"timestamp":1788123960000,"latitude":46.35,"longitude":-104.25},{"id":"iem_G_45.830_-103.720_1788125400000","source":"iem","severity":"low","severityValue":25,"timestamp":1788125400000,"latitude":45.83,"longitude":-103.72},{"id":"iem_G_45.830_-103.720_1788126000000","source":"iem","severity":"low","severityValue":25,"timestamp":1788126000000,"latitude":45.83,"longitude":-103.72},{"id":"iem_G_45.830_-103.720_1788125700000","source":"iem","severity":"low","severityValue":25,"timestamp":1788125700000,"latitude":45.83,"longitude":-103.72}] |
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 Dickinson (United States), based on data from spc. Source: Calamity.live, a platform aggregating real-time data from 191 scientific monitoring sources.