This alert expired on 17 July 2026 at 05:15 UTC. It is kept here as a record.
It is the 40th strongest of the 91 detections recorded within 20 km of this point since 15 June 2026. The last comparable one was on 13 July 2026. 15 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Flash Flood Warning issued July 16 at 7:16PM MST until July 16 at 10:15PM MST by NWS Phoenix AZ
An estimated 833,614 people live within 50 km of this point.
Nearby, since 15 June 2026
- August 10, 2026 · score 48 · 1.7 km
- August 28, 2026 · score 48 · 12.2 km
- July 12, 2026 · score 48 · 12.2 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 41 out of 100, at 81 % confidence.
The score is ours, computed from intensity, exposed population and local history — not the source’s.
Event Data
| Type | Severe weather |
| Severity | medium |
| Calamity Score (ours) | 41 / 100 |
| Our confidence | 81% |
| Coordinates | 32.3497, -110.8678 |
| Nearest City | Catalina Foothills (7 km) |
| Population Exposed | 833.6K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-07-17T02:16:00.000Z |
Score Breakdown
Technical Details
| Event | Flash Flood Warning |
| Urgency | Immediate |
| Certainty | Likely |
| AreaDesc | Maricopa, AZ; Pima, AZ; Maricopa, AZ; Pinal, AZ and 3 more areas |
| Headline | Flash Flood Warning issued July 16 at 7:16PM MST until July 16 at 10:15PM MST by NWS Phoenix AZ |
| Expires | 2026-07-16T22:15:00-07:00 |
| SenderName | NWS Phoenix AZ |
| HasExactCoords | true |
| MergedCount | 10 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.582afebfd473d5a9da5cb2c92bf083afcc892482.001.1","noaa_urn:oid:2.49.0.1.840.0.786e2d23f209dd0e9b4f26cf90861b7f9048ea89.001.1","noaa_urn:oid:2.49.0.1.840.0.9fc636f672c468f5bf26697ec9901366e76e0c55.001.1","noaa_urn:oid:2.49.0.1.840.0.c80ce9f2db828140494a3b125f7a0c5507e3d4f6.001.1","noaa_urn:oid:2.49.0.1.840.0.805a13a0d99488e398aabc7e424bcaf8280596d9.001.1","noaa_urn:oid:2.49.0.1.840.0.2168560399b8105c71fe6cd81310e4b8f4fda895.001.1","noaa_urn:oid:2.49.0.1.840.0.277aa9a70708ef4ef2c9591e7a6e20e145b92704.001.1","noaa_urn:oid:2.49.0.1.840.0.f45ec13ecc3875759cd146e473f6e4caf4a59bc6.001.1","noaa_urn:oid:2.49.0.1.840.0.03bbd4cfeb498ac8d5b4c5cbcb8d900231278fcd.001.1","noaa_urn:oid:2.49.0.1.840.0.6674050aeae07d2c66aa604379c3b1c0a7f451c7.001.1"] |
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 10 February 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.
Calamity.live data shows a weather event with CalamityScore 41/100, near Catalina Foothills (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 194 scientific monitoring sources.