This alert expired on 31 August 2026 at 18:45 UTC. It is kept here as a record.
It is the 14th strongest of the 22 detections recorded within 20 km of this point since 17 July 2026. Another comparable one was recorded here earlier the same day.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued August 31 at 12:04PM MDT until August 31 at 12:45PM MDT by NWS Salt Lake City UT
An estimated 112,697 people live within 50 km of this point.
Nearby, since 17 July 2026
- July 18, 2026 · score 43 · 5.5 km
- July 29, 2026 · score 43 · 12.4 km
- August 13, 2026 · score 43 · 17.6 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 37 out of 100, at 81 % confidence.
The score is ours, computed from intensity, exposed population and local history — not the source’s.
Event Data
| Type | Severe weather |
| Severity | medium |
| Calamity Score (ours) | 37 / 100 |
| Our confidence | 81% |
| Coordinates | 37.0127, -113.2504 |
| Nearest City | Hurricane (19 km) |
| Population Exposed | 112.7K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-08-31T18:04:00.000Z |
| Source | https://api.weather.gov/alerts/urn%3Aoid%3A2.49.0.1.840.0.a60b3bd43ff80aa48b048e6e05ab4fd060b2f147.001.1 |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Washington, UT; Mohave, AZ |
| Headline | Severe Thunderstorm Warning issued August 31 at 12:04PM MDT until August 31 at 12:45PM MDT by NWS Salt Lake City UT |
| Expires | 2026-08-31T12:45:00-06:00 |
| SenderName | NWS Salt Lake City UT |
| HasExactCoords | true |
| MergedCount | 2 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.a60b3bd43ff80aa48b048e6e05ab4fd060b2f147.001.1","noaa_urn:oid:2.49.0.1.840.0.65c9a0aa9876347cd49dd16d5abf2d5bfe9de98c.001.1"] |
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 10 February 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.
Calamity.live data shows a weather event with CalamityScore 37/100, near Hurricane (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 188 scientific monitoring sources.