Right now
The most recent data we hold from NOAA arrived 22 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 18 July 2026 at 02:18 UTC. It is kept here as a record.
It is the 5th strongest of the 17 detections recorded within 20 km of this point since 18 July 2026. Another comparable one was recorded here earlier the same day. 5 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Flash Flood Warning issued July 17 at 7:08PM MST until July 17 at 7:15PM MST by NWS Phoenix AZ
Urban PEI: 53,553 within a heuristic 50 km radius; not unique people.
Nearby, since 18 July 2026
- August 12, 2026 · score 39 · 7.2 km
- July 18, 2026 · score 43 · 19.2 km
- August 12, 2026 · score 39 · 23.5 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 39 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) | 39 / 100 |
| Legacy data-support index | 0.80/1 |
| Coordinates | 34.7124, -114.3124 |
| Nearest City | Lake Havasu City (26 km) |
| Urban exposure index (PEI) | 53.6K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-07-18T02:08:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Flash Flood Warning_noaa_urn:oid:2.49.0.1.840.0.b4b73dd35c1130f04a6186c33b0e7f08 |
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: 2026-07-18T02:08:00.000Z.
First archived: 2026-07-18T02:14:25.135Z. 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 | La Paz, AZ; San Bernardino, CA; Mohave, AZ |
| Headline | Flash Flood Warning issued July 17 at 7:08PM MST until July 17 at 7:15PM MST by NWS Phoenix AZ |
| Expires | 2026-07-17T19:18:00-07:00 |
| SenderName | NWS Phoenix AZ |
| HasExactCoords | true |
| MergedCount | 4 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.b4b73dd35c1130f04a6186c33b0e7f08d99b50ac.001.1","noaa_urn:oid:2.49.0.1.840.0.afa4b32b8197ab68299dad2612964e6e5791b65a.001.1","noaa_urn:oid:2.49.0.1.840.0.ef612a869449eb191f566570f30432e2dc36ed42.001.1","noaa_urn:oid:2.49.0.1.840.0.ac63b35af0bced656f91ae862671a32ce9e43fa0.001.1"] |
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.
Review the area, threshold and delivery channel in your account.
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