Right now
The most recent data we hold from SPC arrived 1 minute ago, and this point is not in it. We record detections, not passes: an absence is not proof that nothing is there.
57 other detections within 20 km in the last 24 hours, the nearest <1 km from here.
Reported by SPC today.
No stronger detection stands among the 100 recorded within 20 km of this point since 14 April 2026 — 79 others scored the same. Another comparable one was recorded here earlier the same day.
What the source measured
SPC reported: Hail 175 in near 3 NW Parkersburg, Butler, IA. Report from mPING: Golf Ball (1.75 in.). (DMX)
An estimated 109,715 people live within 50 km of this point.
Nearby, since 14 April 2026
- September 4, 2026 · score 49 · 0.0 km
- September 5, 2026 · score 49 · 2.0 km
How we know
One source: SPC. Not yet confirmed by a second, independent source.
Our own score for this event is 49 out of 100, at 61 % 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 | 61% |
| Coordinates | 42.6100, -92.8100 |
| Nearest City | Cedar Falls (31 km) |
| Population Exposed | 109.7K within 50 km |
| Impact Tier | severe |
| Timestamp | 2026-09-05T11:50:27.230Z |
| Source | https://www.spc.noaa.gov/climo/reports/today.html |
Score Breakdown
Technical Details
| ReportType | hail |
| Speed | 175 |
| Location | 3 NW Parkersburg |
| County | Butler |
| State | IA |
| Comments | Report from mPING: Golf Ball (1.75 in.). (DMX) |
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.