Right now
The most recent data we hold from NOAA arrived 5 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 <1 km from here.
This alert expired on 15 September 2026 at 02:15 UTC. It is kept here as a record.
It is the 7th strongest of the 9 detections recorded within 20 km of this point since 12 July 2026. The last comparable one was on 10 August 2026.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued September 14 at 6:46PM MST until September 14 at 7:15PM MST by NWS Phoenix AZ
Urban PEI: 185,119 within a heuristic 50 km radius; not unique people.
Nearby, since 12 July 2026
- September 15, 2026 · score 37 · 0.8 km
- July 14, 2026 · score 43 · 8.6 km
- August 10, 2026 · score 43 · 11.8 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 37 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 v5. Rows carrying other versions were judged by different rules and are not directly comparable.
Event Data
| Type | Severe Weather |
| Severity | Medium |
| Calamity Score (ours) | 37 / 100 |
| Legacy data-support index | 0.81/1 |
| Coordinates | 33.1443, -111.1557 |
| Nearest City | Florence (25 km) |
| Urban exposure index (PEI) | 185.1K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-09-15T01:46:00.000Z |
| Source | https://api.weather.gov/alerts/urn%3Aoid%3A2.49.0.1.840.0.84300280080f51f4599e82bbd70c77c22d425453.001.1 |
Physical priority index · v5. 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: 2026-09-15T01:46:00.000Z.
First archived: 2026-09-15T01:51:08.984Z. 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 | Pinal, AZ |
| Headline | Severe Thunderstorm Warning issued September 14 at 6:46PM MST until September 14 at 7:15PM MST by NWS Phoenix AZ |
| Expires | 2026-09-14T19:15:00-07:00 |
| SenderName | NWS Phoenix AZ |
| HasExactCoords | true |
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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