This alert expired on 10 August 2026 at 00:00 UTC. It is kept here as a record.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued August 9 at 4:20PM MST until August 9 at 5:00PM MST by NWS Tucson AZ
Nearby, since 9 August 2026
- September 1, 2026 · score 16 · 8.3 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 | 32.9830, -113.4140 |
| Nearest City | Buckeye (89 km) |
| Impact Tier | minor |
| Timestamp | 2026-08-09T23:20:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.6ab24deb4fe0a39e45c69fd8e7a20c36 |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Pima, AZ; La Paz, AZ |
| Headline | Severe Thunderstorm Warning issued August 9 at 4:20PM MST until August 9 at 5:00PM MST by NWS Tucson AZ |
| Expires | 2026-08-09T17:00:00-07:00 |
| SenderName | NWS Tucson AZ |
| HasExactCoords | true |
| MergedCount | 2 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.6ab24deb4fe0a39e45c69fd8e7a20c36d473401b.001.1","noaa_urn:oid:2.49.0.1.840.0.56468a0e3685757f1ce4724bf89961fd810cea80.001.1"] |
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 22/100 (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 188 scientific monitoring sources.