This alert expired on 12 August 2026 at 22:15 UTC. It is kept here as a record.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued August 12 at 2:55PM PDT until August 12 at 3:15PM PDT by NWS Las Vegas NV
An estimated 68,357 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 39 out of 100, at 78 % 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) | 39 / 100 |
| Our confidence | 78% |
| Coordinates | 35.3342, -114.4200 |
| Nearest City | Bullhead City (25 km) |
| Population Exposed | 68.4K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-08-12T21:55:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.b2e4395c22b01e894060673621c59ba9 |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Mohave, AZ; Clark, NV; Mohave, AZ; San Bernardino, CA |
| Headline | Severe Thunderstorm Warning issued August 12 at 2:55PM PDT until August 12 at 3:15PM PDT by NWS Las Vegas NV |
| Expires | 2026-08-12T15:15:00-07:00 |
| SenderName | NWS Las Vegas NV |
| HasExactCoords | true |
| MergedCount | 2 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.b2e4395c22b01e894060673621c59ba9f656d72d.001.1","noaa_urn:oid:2.49.0.1.840.0.400b8c84471c358975b5c867310f7f45835bafa1.001.1"] |
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 39/100, near Bullhead City (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 188 scientific monitoring sources.