Right now
The most recent data we hold from NOAA arrived 2 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 13 July 2026 at 04:00 UTC. It is kept here as a record.
It is the 10th strongest of the 60 detections recorded within 20 km of this point since 23 June 2026. Another comparable one was recorded here earlier the same day. 2 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Flash Flood Warning issued July 12 at 6:01PM MST until July 12 at 9:00PM MST by NWS Tucson AZ
Urban PEI: 855,005 within a heuristic 50 km radius; not unique people.
Nearby, since 23 June 2026
- August 31, 2026 · score 48 · 7.2 km
- August 6, 2026 · score 48 · 8.5 km
- August 30, 2026 · score 54 · 11.0 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.
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) | 48 / 100 |
| Legacy data-support index | 0.81/1 |
| Coordinates | 32.0784, -111.2245 |
| Nearest City | Drexel Heights (20 km) |
| Urban exposure index (PEI) | 855.0K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-07-13T01:01:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Flash Flood Warning_noaa_urn:oid:2.49.0.1.840.0.56ebe599f1efdbaef4965aaba55a25d0 |
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: 2026-07-13T01:01:00.000Z.
First archived: 2026-07-13T01:04:17.863Z. 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 | Flash Flood Warning |
| Urgency | Immediate |
| Certainty | Likely |
| AreaDesc | Pima, AZ; Pinal, AZ; Pima, AZ; Santa Cruz, AZ |
| Headline | Flash Flood Warning issued July 12 at 6:01PM MST until July 12 at 9:00PM MST by NWS Tucson AZ |
| Expires | 2026-07-12T21:00:00-07:00 |
| SenderName | NWS Tucson AZ |
| HasExactCoords | true |
| MergedCount | 8 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.56ebe599f1efdbaef4965aaba55a25d08eb27d76.001.1","noaa_urn:oid:2.49.0.1.840.0.6437179201e9a83a7e860281eef35be93c74b936.001.1","noaa_urn:oid:2.49.0.1.840.0.ee4d345ca69ca8c188af95e4d8718de64c931e84.001.1","noaa_urn:oid:2.49.0.1.840.0.99bc2d9b35c38d93c2014859628b7e795a18583b.001.1","noaa_urn:oid:2.49.0.1.840.0.0e11e6d21258776f2f0eff559c97fea88d8a0302.001.1","noaa_urn:oid:2.49.0.1.840.0.bed0cab8620af86b9f8d85f73776ea19f19b7f8b.001.1","noaa_urn:oid:2.49.0.1.840.0.e05955914bd8657da51a93234c8d6a33e91e71fb.001.1","noaa_urn:oid:2.49.0.1.840.0.b0400cf632a8b4f741d24287eecfff28722d5604.001.1"] |
Safety Information
During flooding: never walk, swim, or drive through floodwaters. Six inches of moving water can knock you down, and one foot of water can sweep away a vehicle. Move to higher ground if waters rise. After flooding, avoid contact with floodwater which may contain sewage, chemicals, or debris. Follow local emergency service guidance.
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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