Right now
The most recent data we hold from NOAA arrived 7 minutes ago, and this point is not in it. We record detections, not passes: an absence is not proof that nothing is there.
2 other detections within 20 km in the last 24 hours, the nearest <1 km from here.
This alert expired on 7 September 2026 at 09:00 UTC. It is kept here as a record.
It is one of only 4 we have recorded within 20 km of this point since 23 April 2026. Another comparable one was recorded here earlier the same day.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued September 7 at 2:25AM MDT until September 7 at 3:00AM MDT by NWS Glasgow MT
Nearby, since 23 April 2026
- September 7, 2026 · score 16 · 0.0 km
How we know
Confirmed by 2 independent sources, including NOAA.
Our own score for this event is 16 out of 100, at 66 % 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 | 66% |
| Coordinates | 48.8040, -106.6040 |
| Nearest City | Swift Current (185 km) |
| Impact Tier | minor |
| Timestamp | 2026-09-07T08:25:00.000Z |
| Source | https://api.weather.gov/alerts/urn%3Aoid%3A2.49.0.1.840.0.e4718564d70cb89acd0564bb46970886b7f6e645.001.1 |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Valley, MT |
| Headline | Severe Thunderstorm Warning issued September 7 at 2:25AM MDT until September 7 at 3:00AM MDT by NWS Glasgow MT |
| Expires | 2026-09-07T03:00:00-06:00 |
| SenderName | NWS Glasgow MT |
| HasExactCoords | true |
| Iem TypeSummary | N |
| Iem Magnitude | 59 |
| Iem Unit | MPH |
| Iem City | 2 WSW Thoeny |
| Iem County | Valley |
| Iem State | MT |
| Iem Wfo | GGW |
| Iem Remark | Mesonet station BLUM8 Thoeny 1WSW/Bluff Creek. |
| MergedSources | [{"id":"iem_N_48.870_-106.950_1788767040000","source":"iem","severity":"low","severityValue":25,"timestamp":1788767040000,"latitude":48.87,"longitude":-106.95}] |
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 (Canada), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.