Calamity
MediumSevere WeatherCalamity Score: 34

Severe Weather near Mitchell

HansonUnited StatesNOAA

Right now

The most recent data we hold from NOAA arrived 28 minutes 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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