Right now
The most recent data we hold from NOAA arrived 8 minutes ago, and this point is not in it. We record detections, not passes: an absence is not proof that nothing is there.
6 other detections within 20 km in the last 24 hours, the nearest <1 km from here.
This alert expired on 6 September 2026 at 22:45 UTC. It is kept here as a record.
No stronger detection stands among the 8 recorded within 20 km of this point since 29 June 2026 — 4 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 6 at 4:18PM MDT until September 6 at 4:45PM MDT by NWS Missoula MT
Nearby, since 29 June 2026
- September 6, 2026 · score 28 · 17.8 km
How we know
Confirmed by 2 independent sources, including NOAA.
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 | High |
| Calamity Score (ours) | 28 / 100 |
| Our confidence | 64% |
| Coordinates | 45.9558, -113.2253 |
| Nearest City | Butte (54 km) |
| Impact Tier | minor |
| Timestamp | 2026-09-06T22:18:00.000Z |
| Source | https://api.weather.gov/alerts/urn%3Aoid%3A2.49.0.1.840.0.29d0b1d4015ec3ad9e7da2f2e7bb4bee42af9ac5.001.1 |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Deer Lodge, MT; Granite, MT; Beaverhead, MT |
| Headline | Severe Thunderstorm Warning issued September 6 at 4:18PM MDT until September 6 at 4:45PM MDT by NWS Missoula MT |
| Expires | 2026-09-06T16:45:00-06:00 |
| SenderName | NWS Missoula MT |
| HasExactCoords | true |
| MergedCount | 2 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.29d0b1d4015ec3ad9e7da2f2e7bb4bee42af9ac5.001.1","noaa_urn:oid:2.49.0.1.840.0.f5b8b1a06a675a8ef45f6ca7baf2609f559e62df.001.1"] |
| Spc ReportType | hail |
| Spc Speed | 100 |
| Spc Location | Wisdom |
| Spc County | Beaverhead |
| Spc State | MT |
| Spc Comments | (TFX) |
| MergedSources | [{"id":"spc_hail_45.62_-113.45_53","source":"spc","severity":"high","severityValue":65,"timestamp":1788732840000,"latitude":45.62,"longitude":-113.45}] |
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 28/100 (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.