Reported by SPC today.
No stronger detection stands among the 62 recorded within 20 km of this point since 14 March 2026 — 29 others scored the same. Another comparable one was recorded here earlier the same day.
What the source measured
SPC reported: Wind 73 kt near Helena, Lewis and Clark, MT. (TFX)
An estimated 32,091 people live within 50 km of this point.
How we know
One source: SPC. Not yet confirmed by a second, independent source.
Our own score for this event is 28 out of 100, at 64 % 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 | 64% |
| Coordinates | 46.6000, -112.0200 |
| Nearest City | Helena (2 km) |
| Population Exposed | 32.1K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-09-03T09:48:15.448Z |
| Source | https://www.spc.noaa.gov/climo/reports/today.html |
Score Breakdown
Technical Details
| ReportType | wind |
| Speed | 73 |
| Location | Helena |
| County | Lewis and Clark |
| State | MT |
| Comments | (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 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 near Helena?
Calamity.live data shows a weather event with CalamityScore 28/100, near Helena (United States), based on data from spc. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.