Right now
The most recent data we hold from NOAA arrived 2 hours ago, and this point is not in it. We record detections, not passes: an absence is not proof that nothing is there.
Nothing else has been detected within 20 km in the last 24 hours.
This alert expired on 5 July 2026 at 22:15 UTC. It is kept here as a record.
No stronger detection stands among the 37 recorded within 20 km of this point since 17 March 2026 — 4 others scored the same. Another comparable one was recorded here earlier the same day. 7 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued July 5 at 4:03PM MDT until July 5 at 4:15PM MDT by NWS Great Falls MT
An estimated 43,405 people live within 50 km of this point.
How we know
Confirmed by 9 independent sources, including NOAA.
Our own score for this event is 34 out of 100, at 89 % confidence.
The score is ours, computed from intensity, exposed population and local history — not the source’s.
Computed under scoring rules v1. Rows carrying other versions were judged by different rules and are not directly comparable.
Event Data
| Type | Severe Weather |
| Severity | Medium |
| Calamity Score (ours) | 34 / 100 |
| Our confidence | 89% |
| Coordinates | 45.7100, -110.9978 |
| Nearest City | Bozeman (5 km) |
| Population Exposed | 43.4K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-07-05T22:03:00.000Z |
| Source | https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.e65321ac0b7ca3e7f29a3cb5a2a74127afbce931.001.1 |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Gallatin, MT |
| Headline | Severe Thunderstorm Warning issued July 5 at 4:03PM MDT until July 5 at 4:15PM MDT by NWS Great Falls MT |
| Expires | 2026-07-05T16:15:00-06:00 |
| SenderName | NWS Great Falls MT |
| HasExactCoords | true |
| Iem TypeSummary | G |
| Iem Magnitude | 47 |
| Iem Unit | MPH |
| Iem City | Belgrade |
| Iem County | Gallatin |
| Iem State | MT |
| Iem Wfo | TFX |
| Iem Remark | ASOS station KBZN Bozeman Yellowstone Airport. |
| MergedSources | [{"id":"iem_G_45.670_-110.800_1783287900000","source":"iem","severity":"low","severityValue":25,"timestamp":1783287900000,"latitude":45.67,"longitude":-110.8},{"id":"iem_G_45.660_-111.070_1783287600000","source":"iem","severity":"low","severityValue":25,"timestamp":1783287600000,"latitude":45.66,"longitude":-111.07},{"id":"iem_G_45.690_-110.500_1783285200000","source":"iem","severity":"low","severityValue":25,"timestamp":1783285200000,"latitude":45.69,"longitude":-110.5},{"id":"iem_G_45.300_-111.750_1783286160000","source":"iem","severity":"low","severityValue":25,"timestamp":1783286160000,"latitude":45.3,"longitude":-111.75},{"id":"iem_G_45.720_-110.250_1783286100000","source":"iem","severity":"low","severityValue":25,"timestamp":1783286100000,"latitude":45.72,"longitude":-110.25},{"id":"iem_G_45.640_-110.550_1783285260000","source":"iem","severity":"low","severityValue":25,"timestamp":1783285260000,"latitude":45.64,"longitude":-110.55},{"id":"iem_G_45.700_-110.430_1783285500000","source":"iem","severity":"low","severityValue":25,"timestamp":1783285500000,"latitude":45.7,"longitude":-110.43},{"id":"iem_G_45.780_-111.170_1783288500000","source":"iem","severity":"low","severityValue":25,"timestamp":1783288500000,"latitude":45.78,"longitude":-111.17}] |
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 near Bozeman?
Calamity.live data shows a weather event with CalamityScore 34/100, near Bozeman (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.