Right now
The most recent data we hold from NOAA arrived 21 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 is in force until 1 October 2026, 06:00 UTC.
It is one of only 3 we have recorded within 20 km of this point since 3 August 2026. The last comparable one was on 16 September 2026.
What the source measured
NOAA reported: Flood Warning issued September 30 at 9:20AM MST until September 30 at 11:00PM MST by NWS Tucson 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 | 0.60/1 |
| Coordinates | 33.9037, -110.0555 |
| Nearest City | Payson (123 km) |
| Urban exposure index (PEI) | 0 within 50 km |
| Impact Tier | minor |
| Timestamp | 2026-09-30T16:20:00.000Z |
| Source | https://api.weather.gov/alerts/urn%3Aoid%3A2.49.0.1.840.0.5b416af5097734ae2030d761f9928bf056c9f38e.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: 2026-09-30T16:20:00.000Z.
First archived: 2026-09-30T16:25:39.746Z. 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 | Flood Warning |
| MessageId | urn:oid:2.49.0.1.840.0.5b416af5097734ae2030d761f9928bf056c9f38e.001.1 |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Greenlee, AZ; Graham, AZ; Apache, AZ; Navajo, AZ and 2 more areas |
| Headline | Flood Warning issued September 30 at 9:20AM MST until September 30 at 11:00PM MST by NWS Tucson AZ |
| Expires | 2026-09-30T23:00:00-07:00 |
| SenderName | NWS Tucson AZ |
| HasExactCoords | true |
| MergedCount | 5 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.7ff4070e44065cccb4d892a5460c2351bf1c2b77.001.1","noaa_urn:oid:2.49.0.1.840.0.530a3259acd5c23802f33ec5cea26fdc063c175d.001.1","noaa_urn:oid:2.49.0.1.840.0.a338c447b1965645c5b33402a3bf62af1041d900.001.1","noaa_urn:oid:2.49.0.1.840.0.b8d4a04497acff8a5714731644540b0a37b66cda.001.1","noaa_urn:oid:2.49.0.1.840.0.6be82c807a1785c1e054b0ff2dc29ec1a521c044.001.1"] |
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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