This alert expired on 31 August 2026 at 18:46 UTC. It is kept here as a record.
It is one of only 4 we have 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 12:36PM MDT until August 31 at 12:45PM MDT by NWS Salt Lake City UT
An estimated 130,193 people live within 50 km of this point.
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 | 36.9529, -113.5381 |
| Nearest City | Saint George (17 km) |
| Population Exposed | 130.2K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-08-31T18:36:00.000Z |
| Source | https://api.weather.gov/alerts/urn%3Aoid%3A2.49.0.1.840.0.f656fe651efa0330896346e5d3e966459079b692.001.1 |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Washington, UT; Mohave, AZ; Clark, NV |
| Headline | Severe Thunderstorm Warning issued August 31 at 12:36PM MDT until August 31 at 12:45PM MDT by NWS Salt Lake City UT |
| Expires | 2026-08-31T12:46:00-06:00 |
| SenderName | NWS Salt Lake City UT |
| HasExactCoords | true |
| MergedCount | 2 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.f656fe651efa0330896346e5d3e966459079b692.001.1","noaa_urn:oid:2.49.0.1.840.0.f47e3001f4a974a1bfa5bc5a58856369f61c7adf.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.
Want to know when something happens near Saint George?
Calamity.live data shows a weather event with CalamityScore 37/100, near Saint George (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.