Reported by SPC today.
No stronger detection stands among the 52 recorded within 20 km of this point since 16 March 2026 — 27 others scored the same. Another comparable one was recorded here earlier the same day.
What the source measured
SPC reported: Wind 71 kt near 9 W Bynum, Teton, MT. Mesonet station BYUM8 Bynum W. (TFX)
How we know
Confirmed by 2 independent sources, including SPC.
Our own score for this event is 16 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 | Medium |
| Calamity Score (ours) | 16 / 100 |
| Our confidence | 70% |
| Coordinates | 47.9600, -112.4900 |
| Nearest City | Great Falls (103 km) |
| Impact Tier | minor |
| Timestamp | 2026-09-02T21:45:00.000Z |
| Source | https://www.spc.noaa.gov/climo/reports/today.html |
Score Breakdown
Technical Details
| ReportType | wind |
| Speed | 71 |
| Location | 9 W Bynum |
| County | Teton |
| State | MT |
| Comments | Mesonet station BYUM8 Bynum W. (TFX) |
| Iem TypeSummary | G |
| Iem Magnitude | 71 |
| Iem Unit | MPH |
| Iem City | 9 W Bynum |
| Iem County | Teton |
| Iem State | MT |
| Iem Wfo | TFX |
| Iem Remark | Mesonet station BYUM8 Bynum W. |
| MergedSources | [{"id":"iem_G_47.960_-112.490_1788385500000","source":"iem","severity":"low","severityValue":25,"timestamp":1788385500000,"latitude":47.96,"longitude":-112.49}] |
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 16/100 (United States), based on data from spc. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.