Right now
The most recent data we hold from NOAA arrived 7 minutes ago, and this point is not in it. We record detections, not passes: an absence is not proof that nothing is there.
2 other detections within 20 km in the last 24 hours, the nearest 19 km from here.
This alert expired on 6 August 2026 at 03:15 UTC. It is kept here as a record.
It is the 29th strongest of the 66 detections recorded within 20 km of this point since 11 July 2026. Another comparable one was recorded here earlier the same day. 8 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued August 5 at 7:59PM MST until August 5 at 8:15PM MST by NWS Tucson AZ
Urban PEI: 90,453 within a heuristic 50 km radius; not unique people.
Nearby, since 11 July 2026
- July 26, 2026 · score 39 · 7.3 km
- July 11, 2026 · score 39 · 9.6 km
- September 12, 2026 · score 32 · 11.5 km
How we know
2 recorded sources include NOAA; independence is not established by this count.
Our own score for this event is 39 out of 100.
This is our versioned heuristic index, not source severity or a calibrated probability. Urban PEI does not count unique people.
Computed under scoring rules v1. Rows carrying other versions were judged by different rules and are not directly comparable.
Event Data
| Type | Severe Weather |
| Severity | Medium |
| Calamity Score (ours) | 39 / 100 |
| Legacy data-support index | 0.86/1 |
| Coordinates | 31.7921, -110.5738 |
| Nearest City | Sierra Vista (37 km) |
| Urban exposure index (PEI) | 90.5K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-08-06T02:59:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.97548b8e959626a99dfd9d7201436685 |
Physical priority index · v1. Heuristic priority, not calibrated probability, predictive accuracy or damage. The legacy data-support index combines assigned source support and field availability. Urban PEI is distance-weighted and does not count unique people; zero does not establish that nobody is present. Model cards.
Source and revision timeline
Source: noaa. Occurrence: 2026-08-06T02:59:00.000Z.
First archived: 2026-08-06T03:01:36.645Z. Material modification: not recorded.
Retained revisions are prospective; earlier versions may be unavailable. No revision entry does not prove that a record never changed.
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Pima, AZ; Santa Cruz, AZ; Cochise, AZ; Graham, AZ and 1 more areas |
| Headline | Severe Thunderstorm Warning issued August 5 at 7:59PM MST until August 5 at 8:15PM MST by NWS Tucson AZ |
| Expires | 2026-08-05T20:15:00-07:00 |
| SenderName | NWS Tucson AZ |
| HasExactCoords | true |
| MergedCount | 4 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.97548b8e959626a99dfd9d72014366855174952a.001.1","noaa_urn:oid:2.49.0.1.840.0.07da3120716d97c21eaee8f73c11ac7c58c9bad9.001.1","noaa_urn:oid:2.49.0.1.840.0.16e4ae973ff16ceb3464db0bc1f516e5e702c8ff.001.1","noaa_urn:oid:2.49.0.1.840.0.8e3580be431f25236614234c10b66170f9bad0e3.001.1"] |
| Iem TypeSummary | R |
| Iem Magnitude | 0.42 |
| Iem Unit | Inch |
| Iem City | 1 WSW Patagonia |
| Iem County | Santa Cruz |
| Iem State | AZ |
| Iem Wfo | TWC |
| Iem Remark | 0.42 inches of rain in 5 mins. 0.6 inches in 10 mins. |
| MergedSources | [{"id":"iem_R_31.540_-110.760_1785980400000","source":"iem","severity":"low","severityValue":25,"timestamp":1785980400000,"latitude":31.54,"longitude":-110.76}] |
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 8 March 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.
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