Right now
The most recent data we hold from NOAA arrived 4 minutes ago, and this point is not in it. We record detections, not passes: an absence is not proof that nothing is there.
4 other detections within 20 km in the last 24 hours, the nearest 13 km from here.
This alert expired on 7 September 2026 at 19:15 UTC. It is kept here as a record.
No stronger detection stands among the 16 recorded within 20 km of this point since 7 April 2026 — 13 others scored the same. Another comparable one was recorded here earlier the same day.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued September 7 at 12:36PM MDT until September 7 at 1:15PM MDT by NWS Billings MT
How we know
Confirmed by 2 independent sources, including NOAA.
Our own score for this event is 16 out of 100, at 65 % 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 | 65% |
| Coordinates | 46.8485, -108.1099 |
| Nearest City | Billings (123 km) |
| Impact Tier | minor |
| Timestamp | 2026-09-07T18:36:00.000Z |
| Source | https://api.weather.gov/alerts/urn%3Aoid%3A2.49.0.1.840.0.0eed8e1bcb2deebf7ae4e8ed849d379d3a07cbe3.001.1 |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Musselshell, MT; Garfield, MT; Petroleum, MT |
| Headline | Severe Thunderstorm Warning issued September 7 at 12:36PM MDT until September 7 at 1:15PM MDT by NWS Billings MT |
| Expires | 2026-09-07T13:15:00-06:00 |
| SenderName | NWS Billings MT |
| HasExactCoords | true |
| MergedCount | 2 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.0eed8e1bcb2deebf7ae4e8ed849d379d3a07cbe3.001.1","noaa_urn:oid:2.49.0.1.840.0.3836663901912d3b622133fd7f319f048afd3723.001.1"] |
| Spc ReportType | wind |
| Spc Speed | 59 |
| Spc Location | 5 NNE Forestgrove |
| Spc County | Fergus |
| Spc State | MT |
| Spc Comments | AWOS station K1NM 5 NE Forestgrove. (TFX) |
| MergedSources | [{"id":"spc_wind_47.06_-109.03_1","source":"spc","severity":"medium","severityValue":45,"timestamp":1788804300000,"latitude":47.06,"longitude":-109.03}] |
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.