Calamity
MediumSevere WeatherCalamity Score: 34

Severe Weather near Mitchell

HansonUnited StatesNOAA

Right now

The most recent data we hold from NOAA arrived 1 minute ago, and this point is not in it. We record detections, not passes: an absence is not proof that nothing is there.

Nothing else has been detected within 20 km in the last 24 hours.

This alert expired on 1 July 2026 at 08:45 UTC. It is kept here as a record.

It is the 2nd strongest of the 35 detections recorded within 20 km of this point since 17 May 2026. Another comparable one was recorded here earlier the same day. 4 more were recorded here in the fortnight before it.

What the source measured

NOAA reported: Severe Thunderstorm Warning issued July 1 at 3:17AM CDT until July 1 at 3:45AM CDT by NWS Sioux Falls SD

An estimated 15,669 people live within 50 km of this point.

Nearby, since 17 May 2026

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

TypeSevere Weather
SeverityMedium
Calamity Score (ours)34 / 100
Our confidence91%
Coordinates43.6045, -97.9318
Nearest CityMitchell (14 km)
Population Exposed15.7K within 50 km
Impact Tiersignificant
Timestamp2026-07-01T08:17:00.000Z
Sourcehttps://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.db4dce7be93f31de6f10a39b185af885

Score Breakdown

35
intensity
40
population
0
cascading
80
historical

Technical Details

EventSevere Thunderstorm Warning
UrgencyImmediate
CertaintyObserved
AreaDescHanson, 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; Buffalo, SD; Lyman, SD and 3 more areas
HeadlineSevere Thunderstorm Warning issued July 1 at 3:17AM CDT until July 1 at 3:45AM CDT by NWS Sioux Falls SD
Expires2026-07-01T03:45:00-05:00
SenderNameNWS Sioux Falls SD
HasExactCoordstrue
MergedCount6
MergedIds["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:2.49.0.1.840.0.6efd32667392045cb28a441ca86e56e84e4dd7d7.001.1","noaa_urn:oid:2.49.0.1.840.0.237c3a205ef681b7fb1143c8a9376e30ed387304.001.1","noaa_urn:oid:2.49.0.1.840.0.c07c2475476875d20fe088a5f47b9599af325967.001.1","noaa_urn:oid:2.49.0.1.840.0.907f6a8f7d44625e3a61350c930f7c2a9c66503c.001.1"]
Iem TypeSummaryG
Iem Magnitude64
Iem UnitMPH
Iem City5 NE Dante
Iem CountyCharles Mix
Iem StateSD
Iem WfoFSD
Iem RemarkSDDOT 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.

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