Reported by SPC 175 days ago.
It is the 3rd strongest of the 32 detections recorded within 20 km of this point since 10 March 2026.
What the source measured
SPC reported: Hail 100 in near Agency, Wapello, IA. Quarter sized hail lasted for 5 minutes. (DMX)
An estimated 24,624 people live within 50 km of this point.
Nearby, since 10 March 2026
- March 11, 2026 · score 40 · 10.1 km
- July 21, 2026 · score 28 · 11.1 km
- June 18, 2026 · score 28 · 21.8 km
How we know
Confirmed by 2 independent sources, including SPC.
Our own score for this event is 40 out of 100, at 89 % 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 | 89% |
| Coordinates | 41.0000, -92.3100 |
| Nearest City | Ottumwa (9 km) |
| Population Exposed | 24.6K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-03-10T23:20:00.000Z |
| Source | https://www.spc.noaa.gov/climo/reports/today.html |
Score Breakdown
Technical Details
| ReportType | hail |
| Speed | 100 |
| Location | Agency |
| County | Wapello |
| State | IA |
| Comments | Quarter sized hail lasted for 5 minutes. (DMX) |
| Iem TypeSummary | H |
| Iem Magnitude | 1 |
| Iem Unit | Inch |
| Iem City | Agency |
| Iem County | Wapello |
| Iem State | IA |
| Iem Wfo | DMX |
| Iem Remark | Quarter sized hail lasted for 5 minutes. |
| MergedSources | [{"id":"iem_H_41.000_-92.310_1773184800000","source":"iem","severity":"low","severityValue":25,"timestamp":1773184800000,"latitude":41,"longitude":-92.31}] |
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 near Ottumwa?
Calamity.live data shows a weather event with CalamityScore 40/100, near Ottumwa (United States), based on data from spc. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.