This alert expired on 31 August 2026 at 05:15 UTC. It is kept here as a record.
It is the 4th strongest of the 11 detections recorded within 20 km of this point since 14 July 2026. Another comparable one was recorded here earlier the same day.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued August 30 at 9:27PM MST until August 30 at 10:15PM MST by NWS Phoenix AZ
An estimated 617,458 people live within 50 km of this point.
Nearby, since 14 July 2026
- August 31, 2026 · score 43 · 11.4 km
- August 9, 2026 · score 34 · 18.9 km
- July 14, 2026 · score 48 · 21.2 km
How we know
Confirmed by 2 independent sources, including NOAA.
Our own score for this event is 48 out of 100, at 86 % 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) | 48 / 100 |
| Our confidence | 86% |
| Coordinates | 33.8479, -112.5879 |
| Nearest City | Sun City West (31 km) |
| Population Exposed | 617.5K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-08-31T04:27:00.000Z |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Maricopa, AZ |
| Headline | Severe Thunderstorm Warning issued August 30 at 9:27PM MST until August 30 at 10:15PM MST by NWS Phoenix AZ |
| Expires | 2026-08-30T22:15:00-07:00 |
| SenderName | NWS Phoenix AZ |
| HasExactCoords | true |
| MergedCount | 2 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.e733edce538a9bcc92c76fa6cf365e793a1eab84.001.1","noaa_urn:oid:2.49.0.1.840.0.4d278b60fff977ee1f8884f31706399a7a6b1ded.001.1"] |
| Google News RssFeed | weather |
| Google News SourceName | KTAR News 92.3 FM |
| MergedSources | [{"id":"gnews_weather_496707_228","source":"google_news","severity":"medium","severityValue":40,"timestamp":1788147549000,"latitude":33.45,"longitude":-112.07}] |
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 48/100, near Sun City West (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 191 scientific monitoring sources.