Reported by SPC today.
No stronger detection stands among the 64 recorded within 20 km of this point since 8 March 2026 — 8 others scored the same. Another comparable one was recorded here earlier the same day.
What the source measured
SPC reported: Wind 77 kt near 8 SSW Choteau, Teton, MT. Mesonet station MTCTS Choteau South Us-287 Mp 56.0. (TFX)
Nearby, since 8 March 2026
- July 17, 2026 · score 22 · 20.8 km
How we know
Confirmed by 2 independent sources, including SPC.
Our own score for this event is 28 out of 100, at 66 % 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 | 66% |
| Coordinates | 47.7000, -112.2300 |
| Nearest City | Great Falls (73 km) |
| Impact Tier | minor |
| Timestamp | 2026-09-03T01:22:02.583Z |
| Source | https://www.spc.noaa.gov/climo/reports/today.html |
Score Breakdown
Technical Details
| ReportType | wind |
| Speed | 77 |
| Location | 8 SSW Choteau |
| County | Teton |
| State | MT |
| Comments | Mesonet station MTCTS Choteau South Us-287 Mp 56.0. (TFX) |
| Iem TypeSummary | G |
| Iem Magnitude | 77 |
| Iem Unit | MPH |
| Iem City | 8 SSW Choteau |
| Iem County | Teton |
| Iem State | MT |
| Iem Wfo | TFX |
| Iem Remark | Mesonet station MTCTS Choteau South Us-287 Mp 56.0. |
| MergedSources | [{"id":"iem_G_47.700_-112.230_1788383700000","source":"iem","severity":"low","severityValue":25,"timestamp":1788383700000,"latitude":47.7,"longitude":-112.23}] |
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.