This alert expired on 31 August 2026 at 03:30 UTC. It is kept here as a record.
It is the 6th strongest of the 17 detections recorded within 20 km of this point since 10 August 2026. Another comparable one was recorded here earlier the same day.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued August 30 at 8:09PM MST until August 30 at 8:30PM MST by NWS Phoenix AZ
An estimated 210,563 people live within 50 km of this point.
Nearby, since 10 August 2026
- August 11, 2026 · score 52 · 24.7 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 43 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) | 43 / 100 |
| Our confidence | 81% |
| Coordinates | 33.3410, -112.8530 |
| Nearest City | Buckeye (26 km) |
| Population Exposed | 210.6K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-08-31T03:09:00.000Z |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Maricopa, AZ; La Paz, AZ; Maricopa, AZ; Maricopa, AZ; Pinal, AZ |
| Headline | Severe Thunderstorm Warning issued August 30 at 8:09PM MST until August 30 at 8:30PM MST by NWS Phoenix AZ |
| Expires | 2026-08-30T20:30:00-07:00 |
| SenderName | NWS Phoenix AZ |
| HasExactCoords | true |
| MergedCount | 3 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.444926257c4dcacd18f7dbc48d893d8d11fe7d44.001.1","noaa_urn:oid:2.49.0.1.840.0.474d7327b7f29fc4ca6881a0ff31dcb65a5b5e44.001.1","noaa_urn:oid:2.49.0.1.840.0.ff9da56c5fba2f0c7fffd5608ac040ca95b9491a.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 43/100, near Buckeye (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 191 scientific monitoring sources.