This alert expired on 31 August 2026 at 04:00 UTC. It is kept here as a record.
No stronger detection stands among the 26 recorded within 20 km of this point since 13 July 2026 — 15 others scored the same. Another comparable one was recorded here earlier the same day.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued August 30 at 8:34PM MST until August 30 at 9:00PM MST by NWS Phoenix AZ
An estimated 3,145,245 people live within 50 km of this point.
Nearby, since 13 July 2026
- August 31, 2026 · score 52 · 0.0 km
- July 13, 2026 · score 52 · 6.6 km
- July 13, 2026 · score 52 · 9.9 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 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) | 52 / 100 |
| Our confidence | 81% |
| Coordinates | 33.3872, -112.5187 |
| Nearest City | Buckeye (6 km) |
| Population Exposed | 3.1M within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-08-31T03:34:00.000Z |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Maricopa, AZ; Maricopa, AZ; Pinal, AZ |
| Headline | Severe Thunderstorm Warning issued August 30 at 8:34PM MST until August 30 at 9:00PM MST by NWS Phoenix AZ |
| Expires | 2026-08-30T21:00:00-07:00 |
| SenderName | NWS Phoenix AZ |
| HasExactCoords | true |
| MergedCount | 3 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.203d5f7b8b1ea7058b39777879ab6c719580277b.001.1","noaa_urn:oid:2.49.0.1.840.0.7953c6f6669510f514219ed0439da74a5ab11b93.001.1","noaa_urn:oid:2.49.0.1.840.0.555e157f7876fb1a3b9a5c19262a834b056b6f81.001.1"] |
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 52/100, near Buckeye (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 191 scientific monitoring sources.