Reported by SPC today.
No stronger detection stands among the 9 recorded within 20 km of this point since 22 April 2026 — one other scored the same. The last comparable one was on 18 August 2026.
What the source measured
SPC reported: Wind 65 kt near 2 NW Rock Springs, Rosebud, MT. Mesonet station MTHIL 1.6 NW Rock Springs (MT DOT). (BYZ)
Nearby, since 22 April 2026
- August 30, 2026 · score 22 · 8.1 km
How we know
One source: SPC. Not yet confirmed by a second, independent source.
Our own score for this event is 22 out of 100, at 46 % confidence.
The score is ours, computed from intensity, exposed population and local history — not the source’s.
Event Data
| Type | Severe weather |
| Severity | medium |
| Calamity Score (ours) | 22 / 100 |
| Our confidence | 46% |
| Coordinates | 46.8300, -106.2700 |
| Nearest City | Billings (207 km) |
| Impact Tier | minor |
| Timestamp | 2026-08-30T18:45:00.000Z |
| Source | https://www.spc.noaa.gov/climo/reports/today.html |
Score Breakdown
Technical Details
| ReportType | wind |
| Speed | 65 |
| Location | 2 NW Rock Springs |
| County | Rosebud |
| State | MT |
| Comments | Mesonet station MTHIL 1.6 NW Rock Springs (MT DOT). (BYZ) |
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 10 February 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.
Calamity.live data shows a weather event with CalamityScore 22/100, near Billings (United States), based on data from spc. Source: Calamity.live, a platform aggregating real-time data from 191 scientific monitoring sources.