This alert expired on 10 August 2026 at 00:15 UTC. It is kept here as a record.
No stronger detection stands among the 8 recorded within 20 km of this point since 18 May 2026 — 3 others scored the same. The last comparable one was on 9 August 2026. One more was recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued August 9 at 5:01PM PDT until August 9 at 5:15PM PDT by NWS Las Vegas NV
Nearby, since 18 May 2026
- August 9, 2026 · score 22 · 0.0 km
- July 21, 2026 · score 22 · 9.0 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 22 out of 100, at 60 % 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) | 22 / 100 |
| Our confidence | 60% |
| Coordinates | 36.0467, -114.0983 |
| Nearest City | Boulder City (66 km) |
| Impact Tier | minor |
| Timestamp | 2026-08-10T00:01:00.000Z |
| Source | https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.50b9e67c15b17fc5b6d20d300bd0f4c7c1b49e31.001.1 |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Mohave, AZ; Clark, NV |
| Headline | Severe Thunderstorm Warning issued August 9 at 5:01PM PDT until August 9 at 5:15PM PDT by NWS Las Vegas NV |
| Expires | 2026-08-09T17:15:00-07:00 |
| SenderName | NWS Las Vegas NV |
| 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 22/100, near Boulder City (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 188 scientific monitoring sources.