Calamity
highSevere weatherCalamity Score: 23

Severe Weather in United States

GregoryUnited StatesSPC

Reported by SPC today.

It is the 100th strongest of the 171 detections recorded within 20 km of this point since 17 May 2026. Another comparable one was recorded here earlier the same day.

What the source measured

SPC reported: Hail 250 in near 8 WSW Pickstown, Gregory, SD. (FSD)

Nearby, since 17 May 2026

How we know

Confirmed by 2 independent sources, including SPC.

Our own score for this event is 23 out of 100, at 70 % confidence.

The score is ours, computed from intensity, exposed population and local history — not the source’s.

Event Data

TypeSevere weather
Severityhigh
Calamity Score (ours)23 / 100
Our confidence70%
Coordinates43.0200, -98.6800
Nearest CityMitchell (93 km)
Impact Tierminor
Timestamp2026-09-02T03:30:25.807Z
Sourcehttps://www.spc.noaa.gov/climo/reports/today.html

Score Breakdown

50
intensity
0
population
0
cascading
25
historical

Technical Details

ReportTypehail
Speed250
Location8 WSW Pickstown
CountyGregory
StateSD
Comments(FSD)
Iem TypeSummaryH
Iem Magnitude2.5
Iem UnitInch
Iem City8 WSW Pickstown
Iem CountyGregory
Iem StateSD
Iem WfoFSD
MergedSources[{"id":"iem_H_43.020_-98.680_1788299580000","source":"iem","severity":"low","severityValue":25,"timestamp":1788299580000,"latitude":43.02,"longitude":-98.68}]

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.

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Calamity.live data shows a weather event with CalamityScore 23/100 (United States), based on data from spc. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.