Severe Weather in United States
Reported by SPC today.
It is the 8th strongest of the 31 detections recorded within 20 km of this point since 17 March 2026. Another comparable one was recorded here earlier the same day.
What the source measured
SPC reported: Wind 67 kt near 8 SSW Wolf Creek, Lewis and Clark, MT. Mesonet station MTSBN Sieben Flats - MDT. (TFX)
An estimated 32,091 people live within 50 km of this point.
Nearby, since 17 March 2026
- August 30, 2026 · score 34 · 0.0 km
- August 29, 2026 · score 34 · 0.0 km
- September 2, 2026 · score 28 · 15.1 km
How we know
Confirmed by 2 independent sources, including SPC.
Our own score for this event is 28 out of 100, at 86 % 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) | 28 / 100 |
| Our confidence | 86% |
| Coordinates | 46.8900, -112.1100 |
| Nearest City | Helena (34 km) |
| Population Exposed | 32.1K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-09-03T01:22:02.583Z |
| Source | https://www.spc.noaa.gov/climo/reports/today.html |
Score Breakdown
Technical Details
| ReportType | wind |
| Speed | 67 |
| Location | 8 SSW Wolf Creek |
| County | Lewis and Clark |
| State | MT |
| Comments | Mesonet station MTSBN Sieben Flats - MDT. (TFX) |
| Iem TypeSummary | G |
| Iem Magnitude | 67 |
| Iem Unit | MPH |
| Iem City | 8 SSW Wolf Creek |
| Iem County | Lewis and Clark |
| Iem State | MT |
| Iem Wfo | TFX |
| Iem Remark | Mesonet station MTSBN Sieben Flats - MDT. |
| MergedSources | [{"id":"iem_G_46.890_-112.110_1788381900000","source":"iem","severity":"low","severityValue":25,"timestamp":1788381900000,"latitude":46.89,"longitude":-112.11}] |
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.