Reported by SPC today.
No stronger detection stands among the 58 recorded within 20 km of this point since 14 April 2026 — 37 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 ENE Aplington, Butler, IA. Picture of quarter sized hail that fell between 320 and 330 pm north of Aplington. Location radar estimated. Relayed by broadcast media. (DMX)
An estimated 109,715 people live within 50 km of this point.
Nearby, since 14 April 2026
- September 5, 2026 · score 49 · 0.0 km
- September 4, 2026 · score 49 · 2.0 km
How we know
Confirmed by 2 independent sources, including SPC.
Our own score for this event is 49 out of 100, at 90 % confidence.
The score is ours, computed from intensity, exposed population and local history — not the source’s.
Computed under scoring rules v4. Rows carrying other versions were judged by different rules and are not directly comparable.
Event Data
| Type | Severe Weather |
| Severity | High |
| Calamity Score (ours) | 49 / 100 |
| Our confidence | 90% |
| Coordinates | 42.6000, -92.8300 |
| Nearest City | Cedar Falls (32 km) |
| Population Exposed | 109.7K within 50 km |
| Impact Tier | severe |
| Timestamp | 2026-09-04T20:23:00.000Z |
| Source | https://www.spc.noaa.gov/climo/reports/today.html |
Score Breakdown
Technical Details
| ReportType | hail |
| Speed | 100 |
| Location | 3 ENE Aplington |
| County | Butler |
| State | IA |
| Comments | Picture of quarter sized hail that fell between 320 and 330 pm north of Aplington. Location radar estimated. Relayed by broadcast media. (DMX) |
| Iem TypeSummary | H |
| Iem Magnitude | 1 |
| Iem Unit | Inch |
| Iem City | 3 ENE Aplington |
| Iem County | Butler |
| Iem State | IA |
| Iem Wfo | DMX |
| Iem Remark | Picture of quarter sized hail that fell between 320 and 330 pm north of Aplington. Location radar estimated. Relayed by broadcast media. |
| MergedSources | [{"id":"iem_H_42.600_-92.830_1788553380000","source":"iem","severity":"low","severityValue":25,"timestamp":1788553380000,"latitude":42.6,"longitude":-92.83}] |
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.
Want to know when something happens in this area?
Calamity.live data shows a weather event with CalamityScore 49/100 (United States), based on data from spc. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.