Right now
The most recent data we hold from NOAA arrived 3 minutes ago, and this point is in it.
One other detection within 20 km in the last 24 hours, 20 km from here.
This alert is in force until 7 September 2026, 21:45 UTC.
It is one of only 4 we have recorded within 20 km of this point since 30 August 2026. The last comparable one was on 30 August 2026.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued September 7 at 2:47PM MDT until September 7 at 3:45PM MDT by NWS Glasgow MT
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 16 out of 100, at 61 % 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) | 16 / 100 |
| Our confidence | 61% |
| Coordinates | 47.0813, -106.0800 |
| Nearest City | Williston (219 km) |
| Impact Tier | minor |
| Timestamp | 2026-09-07T20:47:00.000Z |
| Source | https://api.weather.gov/alerts/urn%3Aoid%3A2.49.0.1.840.0.90fe07276153c1c250ba1c99bf9cb0f9a4d47476.001.1 |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Garfield, MT; McCone, MT; Prairie, MT |
| Headline | Severe Thunderstorm Warning issued September 7 at 2:47PM MDT until September 7 at 3:45PM MDT by NWS Glasgow MT |
| Expires | 2026-09-07T15:45:00-06:00 |
| SenderName | NWS Glasgow MT |
| HasExactCoords | true |
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 16/100 (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.