Reported by SPC today.
It is the 4th strongest of the 45 detections recorded within 20 km of this point since 4 April 2026. Another comparable one was recorded here earlier the same day.
What the source measured
SPC reported: Hail 125 in near 2 WNW Fosston, Polk, MN. Hail ranged from nickels to a little bigger then quarters. (FGF)
Nearby, since 4 April 2026
- June 30, 2026 · score 28 · 13.0 km
How we know
Confirmed by 2 independent sources, including SPC.
Our own score for this event is 28 out of 100, at 69 % 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 | 69% |
| Coordinates | 47.5900, -95.7900 |
| Nearest City | Grand Forks (100 km) |
| Impact Tier | minor |
| Timestamp | 2026-09-04T02:06:00.000Z |
| Source | https://www.spc.noaa.gov/climo/reports/today.html |
Score Breakdown
Technical Details
| ReportType | hail |
| Speed | 125 |
| Location | 2 WNW Fosston |
| County | Polk |
| State | MN |
| Comments | Hail ranged from nickels to a little bigger then quarters. (FGF) |
| Iem TypeSummary | D |
| Iem City | 3 SE Mcintosh |
| Iem County | Polk |
| Iem State | MN |
| Iem Wfo | FGF |
| Iem Remark | Off duty NWS employee reported branches up to 4 inches in diameter being knocked down, on and off pea to half inch hail for last 5 minutes. Location estimated 3 SE of Mcintosh. |
| MergedSources | [{"id":"iem_G_47.600_-95.780_1788466920000","source":"iem","severity":"low","severityValue":25,"timestamp":1788466920000,"latitude":47.6,"longitude":-95.78},{"id":"iem_D_47.610_-95.830_1788467220000","source":"iem","severity":"low","severityValue":25,"timestamp":1788467220000,"latitude":47.61,"longitude":-95.83}] |
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 28/100 (United States), based on data from spc. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.