Reported by SPC today.
No stronger detection stands among the 22 recorded within 20 km of this point since 17 March 2026 — 12 others scored the same. The last comparable one was on 29 August 2026.
What the source measured
SPC reported: Wind 59 kt near 11 WSW Big Sandy, Chouteau, MT. Mesonet station MTM90 Big Sandy Sw reported a wind gust of 59 MPH. (TFX)
How we know
One source: SPC. Not yet confirmed by a second, independent source.
Our own score for this event is 22 out of 100, at 45 % confidence.
The score is ours, computed from intensity, exposed population and local history — not the source’s.
Event Data
| Type | Severe weather |
| Severity | medium |
| Calamity Score (ours) | 22 / 100 |
| Our confidence | 45% |
| Coordinates | 48.1000, -110.3300 |
| Nearest City | Great Falls (98 km) |
| Impact Tier | minor |
| Timestamp | 2026-08-30T12:12:08.606Z |
| Source | https://www.spc.noaa.gov/climo/reports/today.html |
Score Breakdown
Technical Details
| ReportType | wind |
| Speed | 59 |
| Location | 11 WSW Big Sandy |
| County | Chouteau |
| State | MT |
| Comments | Mesonet station MTM90 Big Sandy Sw reported a wind gust of 59 MPH. (TFX) |
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 10 February 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.
Calamity.live data shows a weather event with CalamityScore 22/100, near Great Falls (United States), based on data from spc. Source: Calamity.live, a platform aggregating real-time data from 191 scientific monitoring sources.