This alert expired on 22 July 2026 at 03:00 UTC. It is kept here as a record.
No stronger detection stands among the 29 recorded within 20 km of this point since 12 April 2026 — 8 others scored the same. The last comparable one was on 25 June 2026.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued July 21 at 8:33PM MDT until July 21 at 9:00PM MDT by NWS Salt Lake City UT
An estimated 1,832,412 people live within 50 km of this point.
Nearby, since 12 April 2026
- August 29, 2026 · score 52 · 2.1 km
- July 30, 2026 · score 46 · 2.5 km
- July 30, 2026 · score 46 · 3.6 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 52 out of 100, at 80 % 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) | 52 / 100 |
| Our confidence | 80% |
| Coordinates | 40.7780, -111.9780 |
| Nearest City | Salt Lake City (8 km) |
| Population Exposed | 1.8M within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-07-22T02:33:00.000Z |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Davis, UT; Salt Lake, UT |
| Headline | Severe Thunderstorm Warning issued July 21 at 8:33PM MDT until July 21 at 9:00PM MDT by NWS Salt Lake City UT |
| Expires | 2026-07-21T21:00:00-06:00 |
| SenderName | NWS Salt Lake City UT |
| HasExactCoords | true |
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 52/100, near Salt Lake City (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 191 scientific monitoring sources.