This alert expired on 12 July 2026 at 01:53 UTC. It is kept here as a record.
It is the 7th strongest of the 118 detections recorded within 20 km of this point since 12 May 2026. Another comparable one was recorded here earlier the same day. 6 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued July 11 at 6:43PM MST until July 11 at 6:45PM MST by NWS Tucson AZ
An estimated 855,005 people live within 50 km of this point.
Nearby, since 12 May 2026
- August 28, 2026 · score 54 · 4.0 km
- August 11, 2026 · score 48 · 10.0 km
- August 28, 2026 · score 48 · 10.1 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 48 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) | 48 / 100 |
| Our confidence | 81% |
| Coordinates | 32.2600, -110.9430 |
| Nearest City | Tucson (5 km) |
| Population Exposed | 855.0K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-07-12T01:43:00.000Z |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Pima, AZ |
| Headline | Severe Thunderstorm Warning issued July 11 at 6:43PM MST until July 11 at 6:45PM MST by NWS Tucson AZ |
| Expires | 2026-07-11T18:53:00-07:00 |
| SenderName | NWS Tucson AZ |
| HasExactCoords | true |
| MergedCount | 2 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.a8c8263f22ce24da2ce4888c6b6f7eb4f5205390.001.1","noaa_urn:oid:2.49.0.1.840.0.317026cba67b7263cdeb17e6541e10458580255b.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 48/100, near Tucson (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 194 scientific monitoring sources.