This alert expired on 1 July 2026 at 08:35 UTC. It is kept here as a record.
No stronger detection stands among the 31 recorded within 20 km of this point since 17 May 2026 — 4 others scored the same. Another comparable one was recorded here earlier the same day. 5 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued July 1 at 3:25AM CDT until July 1 at 3:30AM CDT by NWS Aberdeen SD
An estimated 15,669 people live within 50 km of this point.
Nearby, since 17 May 2026
- September 5, 2026 · score 28 · 13.7 km
How we know
Confirmed by 5 independent sources, including NOAA.
Our own score for this event is 34 out of 100, at 91 % confidence.
The score is ours, computed from intensity, exposed population and local history — not the source’s.
Computed under scoring rules v1. Rows carrying other versions were judged by different rules and are not directly comparable.
Event Data
| Type | Severe Weather |
| Severity | Medium |
| Calamity Score (ours) | 34 / 100 |
| Our confidence | 91% |
| Coordinates | 43.6147, -97.9299 |
| Nearest City | Mitchell (13 km) |
| Population Exposed | 15.7K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-07-01T08:25:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.0438e45e419b4ff5864a70552bc7f190 |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Buffalo, SD; Lyman, SD; Hanson, SD; Hutchinson, SD; Lake, SD; Lincoln, SD; McCook, SD; Miner, SD; Minnehaha, SD; Turner, SD; Aurora, SD; Brule, SD; Charles Mix, SD; Davison, SD; Douglas, SD; Hutchinson, SD and 3 more areas |
| Headline | Severe Thunderstorm Warning issued July 1 at 3:25AM CDT until July 1 at 3:30AM CDT by NWS Aberdeen SD |
| Expires | 2026-07-01T03:35:00-05:00 |
| SenderName | NWS Aberdeen SD |
| HasExactCoords | true |
| MergedCount | 6 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.0438e45e419b4ff5864a70552bc7f1902772c896.001.1","noaa_urn:oid:2.49.0.1.840.0.db4dce7be93f31de6f10a39b185af8851eefa65b.001.1","noaa_urn:oid:2.49.0.1.840.0.170fccb7ec9cabdeb496fe53b5868ec276449c8e.001.1","noaa_urn:oid:2.49.0.1.840.0.237c3a205ef681b7fb1143c8a9376e30ed387304.001.1","noaa_urn:oid:2.49.0.1.840.0.907f6a8f7d44625e3a61350c930f7c2a9c66503c.001.1","noaa_urn:oid:2.49.0.1.840.0.1f95a610fbb4e289f5fc8676b59b5572ff05a0cb.001.1"] |
| Iem TypeSummary | G |
| Iem Magnitude | 64 |
| Iem Unit | MPH |
| Iem City | 5 NE Dante |
| Iem County | Charles Mix |
| Iem State | SD |
| Iem Wfo | FSD |
| Iem Remark | SDDOT report of 64 mph gust at 2:09 am CDT. |
| MergedSources | [{"id":"iem_G_43.500_-97.850_1782891720000","source":"iem","severity":"low","severityValue":25,"timestamp":1782891720000,"latitude":43.5,"longitude":-97.85},{"id":"iem_G_43.120_-98.070_1782889800000","source":"iem","severity":"low","severityValue":25,"timestamp":1782889800000,"latitude":43.12,"longitude":-98.07},{"id":"iem_G_43.380_-98.160_1782890820000","source":"iem","severity":"low","severityValue":25,"timestamp":1782890820000,"latitude":43.38,"longitude":-98.16},{"id":"iem_G_43.090_-98.120_1782889740000","source":"iem","severity":"low","severityValue":25,"timestamp":1782889740000,"latitude":43.09,"longitude":-98.12}] |
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.
Want to know when something happens near Mitchell?
Calamity.live data shows a weather event with CalamityScore 34/100, near Mitchell (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.