Right now
The most recent data we hold from NOAA arrived 18 minutes ago, and this point is not in it. We record detections, not passes: an absence is not proof that nothing is there.
This alert expired on 6 August 2026 at 04:30 UTC. It is kept here as a record.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued August 5 at 9:03PM MST until August 5 at 9:30PM MST by NWS Tucson AZ
Urban PEI: 43,355 within a heuristic 50 km radius; not unique people.
How we know
3 recorded sources include NOAA; independence is not established by this count.
Our own score for this event is 28 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) | 28 / 100 |
| Legacy data-support index | 0.91/1 |
| Coordinates | 31.7851, -110.2768 |
| Nearest City | Sierra Vista (26 km) |
| Urban exposure index (PEI) | 43.4K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-08-06T04:03:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.a57fe0e682e05a1910458b1896160850 |
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: 2026-08-06T04:03:00.000Z.
First archived: 2026-08-06T04:05:09.094Z. 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 | Cochise, AZ; Pima, AZ; Cochise, AZ; Pima, AZ and 1 more areas |
| Headline | Severe Thunderstorm Warning issued August 5 at 9:03PM MST until August 5 at 9:30PM MST by NWS Tucson AZ |
| Expires | 2026-08-05T21:30:00-07:00 |
| SenderName | NWS Tucson AZ |
| HasExactCoords | true |
| MergedCount | 6 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.a57fe0e682e05a1910458b1896160850e62c6bad.001.1","noaa_urn:oid:2.49.0.1.840.0.307c59a749e719b2ee817f1ac0d607ccb8efc401.001.1","noaa_urn:oid:2.49.0.1.840.0.63f4304aa24bfe428110487c0a6f1896f4e0be33.001.1","noaa_urn:oid:2.49.0.1.840.0.f71de6206000c803dfc374a15cfd9fa4907922d8.001.1","noaa_urn:oid:2.49.0.1.840.0.57052020adb9ad9bc1acfd43851aa28270d0249c.001.1","noaa_urn:oid:2.49.0.1.840.0.c69e351d595baa01a1241beb8c39760306543ad8.001.1"] |
| Iem TypeSummary | H |
| Iem Magnitude | 1 |
| Iem Unit | Inch |
| Iem City | 6 SE Sierra Vista |
| Iem County | Cochise |
| Iem State | AZ |
| Iem Wfo | TWC |
| Iem Remark | Trained spotter reported between dime and quarter sized hail. |
| MergedSources | [{"id":"iem_R_31.540_-110.760_1785980400000","source":"iem","severity":"low","severityValue":25,"timestamp":1785980400000,"latitude":31.54,"longitude":-110.76},{"id":"iem_H_31.500_-110.260_1785983880000","source":"iem","severity":"low","severityValue":25,"timestamp":1785983880000,"latitude":31.5,"longitude":-110.26}] |
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.
Review the area, threshold and delivery channel in your account.
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