Reported by SPC today.
No stronger detection stands among the 37 recorded within 20 km of this point since 10 June 2026 — 30 others scored the same. The last comparable one was on 3 September 2026.
What the source measured
SPC reported: Hail 230 in near 6 S Naytahwaush, Mahnomen, MN. Broadcast media shared photo of hail stone estimated to be 2 to 2.5 inches in diameter near Tulaby Lake MN. Time estimated from radar. (FGF)
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.
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) | 28 / 100 |
| Our confidence | 70% |
| Coordinates | 47.1800, -95.6300 |
| Nearest City | Moorhead (93 km) |
| Impact Tier | minor |
| Timestamp | 2026-09-04T00:14:38.904Z |
| Source | https://www.spc.noaa.gov/climo/reports/today.html |
Score Breakdown
Technical Details
| ReportType | hail |
| Speed | 230 |
| Location | 6 S Naytahwaush |
| County | Mahnomen |
| State | MN |
| Comments | Broadcast media shared photo of hail stone estimated to be 2 to 2.5 inches in diameter near Tulaby Lake MN. Time estimated from radar. (FGF) |
| Iem TypeSummary | H |
| Iem Magnitude | 2.3 |
| Iem Unit | Inch |
| Iem City | 6 S Naytahwaush |
| Iem County | Mahnomen |
| Iem State | MN |
| Iem Wfo | FGF |
| Iem Remark | Broadcast media shared photo of hail stone estimated to be 2 to 2.5 inches in diameter near Tulaby Lake MN. Time estimated from radar. |
| MergedSources | [{"id":"iem_H_47.180_-95.630_1788470580000","source":"iem","severity":"low","severityValue":25,"timestamp":1788470580000,"latitude":47.18,"longitude":-95.63}] |
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 28/100 (United States), based on data from spc. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.