Reported by SPC today.
It is the 3rd strongest of the 65 detections recorded within 20 km of this point since 14 March 2026. Another comparable one was recorded here earlier the same day.
What the source measured
SPC reported: Wind 71 kt near 2 ENE Helena, Lewis and Clark, MT. 71 mph wind gust at the Helena Airport. (TFX)
An estimated 32,091 people live within 50 km of this point.
Nearby, since 14 March 2026
- July 1, 2026 · score 34 · 20.6 km
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, -111.9900 |
| Nearest City | Helena (4 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 | 71 |
| Location | 2 ENE Helena |
| County | Lewis and Clark |
| State | MT |
| Comments | 71 mph wind gust at the Helena Airport. (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.