Right now
The most recent data we hold from NOAA arrived 4 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 21 July 2026 at 01:22 UTC. It is kept here as a record.
It is the 13th strongest of the 21 detections recorded within 20 km of this point since 3 June 2026. Another comparable one was recorded here earlier the same day. 4 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Flash Flood Warning issued July 20 at 6:12PM MST until July 20 at 6:15PM MST by NWS Flagstaff AZ
Nearby, since 3 June 2026
- June 3, 2026 · score 16 · 14.3 km
- August 4, 2026 · score 22 · 15.0 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 16 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) | 16 / 100 |
| Legacy data-support index | 0.60/1 |
| Coordinates | 32.8954, -109.3929 |
| Nearest City | Tanque Verde (145 km) |
| Urban exposure index (PEI) | 0 within 50 km |
| Impact Tier | minor |
| Timestamp | 2026-07-21T01:12:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Flash Flood Warning_noaa_urn:oid:2.49.0.1.840.0.246d030583829e5632890d08b5b87028 |
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: 2026-07-21T01:12:00.000Z.
First archived: 2026-07-21T01:14:12.536Z. 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 | Coconino, AZ; Coconino, AZ; Navajo, AZ; Apache, AZ; Navajo, AZ and 7 more areas |
| Headline | Flash Flood Warning issued July 20 at 6:12PM MST until July 20 at 6:15PM MST by NWS Flagstaff AZ |
| Expires | 2026-07-20T18:22:00-07:00 |
| SenderName | NWS Flagstaff AZ |
| HasExactCoords | true |
| MergedCount | 14 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.246d030583829e5632890d08b5b8702829a2d567.001.1","noaa_urn:oid:2.49.0.1.840.0.5b81a84705f57ac8c295b87a860aea8f0c404dbc.001.1","noaa_urn:oid:2.49.0.1.840.0.10a9c933d7799cc50f8a660c1d3f8244cfb9fd47.001.1","noaa_urn:oid:2.49.0.1.840.0.5672a2eb195793729aaba221f6ac3cf6076b692d.001.1","noaa_urn:oid:2.49.0.1.840.0.04eaf45f0f73758d53088ed1dbd6b4455b088aac.001.1","noaa_urn:oid:2.49.0.1.840.0.287a8e91fea495621dd989c2f952d13abded79bb.001.1","noaa_urn:oid:2.49.0.1.840.0.d0578b48fe84407a71b8b00e983ea152668e3af4.001.1","noaa_urn:oid:2.49.0.1.840.0.639bafb50555f0a9be364f0d6910970a8841c0f9.001.1","noaa_urn:oid:2.49.0.1.840.0.f52fc794ae6965802fa86534f9ffc0f47f8f54b7.001.1","noaa_urn:oid:2.49.0.1.840.0.777d7c5eb95a41f8f52185a2cd08827d7fcc4d12.001.1","noaa_urn:oid:2.49.0.1.840.0.2b0c9b3ea52c5563d23a03b6f02c9c9eb73ca3a3.001.1","noaa_urn:oid:2.49.0.1.840.0.3fae1f1dc173bb9a05e028122a78df4d23b15cb8.001.1","noaa_urn:oid:2.49.0.1.840.0.70c89dbf204f22c41dd51c1f5c783efc67c0d81e.001.1","noaa_urn:oid:2.49.0.1.840.0.5705b0bc089d9efa5bf78b82e2a14a3ca75395f1.001.1"] |
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.
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