Right now
The most recent data we hold from NOAA arrived 20 minutes ago, and this point is not in it. We record detections, not passes: an absence is not proof that nothing is there.
Nothing else has been detected within 20 km in the last 24 hours.
This alert expired on 12 July 2026 at 03:30 UTC. It is kept here as a record.
It is the 19th strongest of the 35 detections recorded within 20 km of this point since 12 July 2026.
What the source measured
NOAA reported: Dust Storm Warning issued July 11 at 6:58PM MST until July 11 at 8:30PM MST by NWS Tucson AZ
Urban PEI: 41,315 within a heuristic 50 km radius; not unique people.
Nearby, since 12 July 2026
- July 13, 2026 · score 39 · 6.2 km
- August 29, 2026 · score 48 · 11.6 km
- August 28, 2026 · score 54 · 16.4 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 34 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) | 34 / 100 |
| Legacy data-support index | 0.81/1 |
| Coordinates | 32.2479, -111.5669 |
| Nearest City | Marana (38 km) |
| Urban exposure index (PEI) | 41.3K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-07-12T01:58:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Dust Storm Warning_noaa_urn:oid:2.49.0.1.840.0.72d6c92ddb50428d414ac190230749b0 |
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: 2026-07-12T01:58:00.000Z.
First archived: 2026-07-12T02:31:15.821Z. 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 | Dust Storm Warning |
| Urgency | Expected |
| Certainty | Likely |
| AreaDesc | Pima, AZ; Pima, AZ; Pinal, AZ |
| Headline | Dust Storm Warning issued July 11 at 6:58PM MST until July 11 at 8:30PM MST by NWS Tucson AZ |
| Expires | 2026-07-11T20:30:00-07:00 |
| SenderName | NWS Tucson AZ |
| HasExactCoords | true |
| MergedCount | 2 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.72d6c92ddb50428d414ac190230749b02e355ed6.001.1","noaa_urn:oid:2.49.0.1.840.0.4fc4a0931fcc8a95bdcab0819a3bec17247fd591.001.1"] |
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 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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