Reported by SPC today.
No stronger detection stands among the 75 recorded within 20 km of this point since 15 March 2026 — 39 others scored the same. Another comparable one was recorded here earlier the same day.
What the source measured
SPC reported: Hail 100 in near 3 ESE Naper, Boyd, NE. Estimated quarter size hail. (LBF)
How we know
Confirmed by 2 independent sources, including SPC.
Our own score for this event is 28 out of 100, at 70 % confidence.
The score is ours, computed from intensity, exposed population and local history — not the source’s.
Event Data
| Type | Severe weather |
| Severity | high |
| Calamity Score (ours) | 28 / 100 |
| Our confidence | 70% |
| Coordinates | 42.9500, -99.0400 |
| Nearest City | Mitchell (118 km) |
| Impact Tier | minor |
| Timestamp | 2026-09-02T01:41:39.378Z |
| Source | https://www.spc.noaa.gov/climo/reports/today.html |
Score Breakdown
Technical Details
| ReportType | hail |
| Speed | 100 |
| Location | 3 ESE Naper |
| County | Boyd |
| State | NE |
| Comments | Estimated quarter size hail. (LBF) |
| Iem TypeSummary | H |
| Iem Magnitude | 1 |
| Iem Unit | Inch |
| Iem City | 3 ESE Naper |
| Iem County | Boyd |
| Iem State | NE |
| Iem Wfo | LBF |
| Iem Remark | Estimated quarter size hail. |
| MergedSources | [{"id":"iem_H_42.950_-99.040_1788297300000","source":"iem","severity":"low","severityValue":25,"timestamp":1788297300000,"latitude":42.95,"longitude":-99.04}] |
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.
Want to know when something happens in this area?
Calamity.live data shows a weather event with CalamityScore 28/100 (United States), based on data from spc. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.