Right now
The most recent data we hold from NOAA arrived 2 minutes ago, and this point is in it.
Nothing else has been detected within 20 km in the last 24 hours.
This alert is in force until 1 October 2026, 07:30 UTC.
It is the only one we have recorded within 20 km of this point since 30 September 2026.
What the source measured
NOAA reported: Flood Warning issued September 30 at 2:22PM MST until October 1 at 12:30AM MST by NWS Flagstaff AZ
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 v5. 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 | 0.59/1 |
| Coordinates | 35.1084, -110.6279 |
| Nearest City | Flagstaff (93 km) |
| Urban exposure index (PEI) | 0 within 50 km |
| Impact Tier | minor |
| Timestamp | 2026-09-30T21:22:00.000Z |
| Source | https://api.weather.gov/alerts/urn%3Aoid%3A2.49.0.1.840.0.0aba51fc525784a63be2c6db82ad906ad5e0e938.001.1 |
Physical priority index · v5. 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: 2026-09-30T21:22:00.000Z.
First archived: 2026-09-30T21:02:24.659Z. Material modification: 2026-09-30T21:24:31.264Z.
Retained revisions are prospective; earlier versions may be unavailable. No revision entry does not prove that a record never changed.
5 retained revisions changed source fields this page does not show; the index, severity and version stayed the same.
Score Breakdown
Technical Details
| Event | Flood Warning |
| MessageId | urn:oid:2.49.0.1.840.0.0aba51fc525784a63be2c6db82ad906ad5e0e938.001.1 |
| Urgency | Immediate |
| Certainty | Likely |
| AreaDesc | Coconino, AZ; Navajo, AZ |
| Headline | Flood Warning issued September 30 at 2:22PM MST until October 1 at 12:30AM MST by NWS Flagstaff AZ |
| Expires | 2026-10-01T00:30:00-07:00 |
| 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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