Right now
The most recent data we hold from NOAA arrived 1 minute ago, and this point is in it.
2 other detections within 20 km in the last 24 hours, the nearest 3 km from here.
This alert is in force until 12 September 2026, 03:00 UTC.
It is the 5th strongest of the 8 detections recorded within 20 km of this point since 17 July 2026. The last comparable one was on 11 September 2026. 2 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Flash Flood Warning issued September 11 at 5:00PM MST until September 11 at 8:00PM MST by NWS Flagstaff AZ
An estimated 15,345 people live within 50 km of this point.
Nearby, since 17 July 2026
- September 11, 2026 · score 28 · 3.4 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 28 out of 100, at 80 % confidence.
The score is ours, computed from intensity, exposed population and local history — not the source’s.
Computed under scoring rules v4. Rows carrying other versions were judged by different rules and are not directly comparable.
Event Data
| Type | Severe Weather |
| Severity | Medium |
| Calamity Score (ours) | 28 / 100 |
| Our confidence | 80% |
| Coordinates | 34.4195, -111.5445 |
| Nearest City | Payson (29 km) |
| Population Exposed | 15.3K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-09-12T00:00:00.000Z |
| Source | https://api.weather.gov/alerts/urn%3Aoid%3A2.49.0.1.840.0.0aa8d2cb6fa3da1f958bd8f04d4637bff360d9b8.001.1 |
Score Breakdown
Technical Details
| Event | Flash Flood Warning |
| Urgency | Immediate |
| Certainty | Likely |
| AreaDesc | Gila, AZ |
| Headline | Flash Flood Warning issued September 11 at 5:00PM MST until September 11 at 8:00PM MST by NWS Flagstaff AZ |
| Expires | 2026-09-11T20:00:00-07:00 |
| SenderName | NWS Flagstaff AZ |
| HasExactCoords | true |
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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