Right now
The most recent data we hold from SPC arrived 65 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.
Reported by SPC 104 days ago.
It is the 4th strongest of the 42 detections recorded within 20 km of this point since 31 May 2026. Another comparable one was recorded here earlier the same day. 14 more were recorded here in the fortnight before it.
What the source measured
SPC reported: Hail 100 in near 1 WSW Emery, Hanson, SD. Very heavy rain along with penny to quarter sized hail. Rainfall is already over 3 inches. (FSD)
An estimated 15,669 people live within 50 km of this point.
Nearby, since 31 May 2026
- June 1, 2026 · score 40 · 0.0 km
- May 31, 2026 · score 58 · 13.0 km
How we know
Confirmed by 3 independent sources, including SPC.
Our own score for this event is 40 out of 100, at 85 % 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 | High |
| Calamity Score (ours) | 40 / 100 |
| Our confidence | 85% |
| Coordinates | 43.6000, -97.6300 |
| Nearest City | Mitchell (34 km) |
| Population Exposed | 15.7K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-06-01T03:46:29.420Z |
| Source | https://www.spc.noaa.gov/climo/reports/today.html |
Score Breakdown
Technical Details
| ReportType | hail |
| Speed | 100 |
| Location | 1 WSW Emery |
| County | Hanson |
| State | SD |
| Comments | Very heavy rain along with penny to quarter sized hail. Rainfall is already over 3 inches. (FSD) |
| Iem TypeSummary | R |
| Iem Magnitude | 3.5 |
| Iem Unit | Inch |
| Iem City | Emery |
| Iem County | Hanson |
| Iem State | SD |
| Iem Wfo | FSD |
| MergedSources | [{"id":"iem_H_43.600_-97.630_1780266600000","source":"iem","severity":"low","severityValue":25,"timestamp":1780266600000,"latitude":43.6,"longitude":-97.63},{"id":"iem_R_43.600_-97.620_1780273380000","source":"iem","severity":"low","severityValue":25,"timestamp":1780273380000,"latitude":43.6,"longitude":-97.62}] |
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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