This alert expired on 31 August 2026 at 07:45 UTC. It is kept here as a record.
It is the 10th strongest of the 19 detections recorded within 20 km of this point since 10 August 2026. Another comparable one was recorded here earlier the same day.
What the source measured
NOAA reported: Flash Flood Warning issued August 30 at 10:47PM MST until August 31 at 12:45AM MST by NWS Phoenix AZ
An estimated 244,498 people live within 50 km of this point.
Nearby, since 10 August 2026
- August 10, 2026 · score 52 · 12.6 km
- August 11, 2026 · score 52 · 20.2 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 43 out of 100, at 82 % confidence.
The score is ours, computed from intensity, exposed population and local history — not the source’s.
Event Data
| Type | Severe weather |
| Severity | medium |
| Calamity Score (ours) | 43 / 100 |
| Our confidence | 82% |
| Coordinates | 33.3437, -112.7490 |
| Nearest City | Buckeye (16 km) |
| Population Exposed | 244.5K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-08-31T05:47:00.000Z |
Score Breakdown
Technical Details
| Event | Flash Flood Warning |
| Urgency | Immediate |
| Certainty | Likely |
| AreaDesc | Pinal, AZ; La Paz, AZ; Maricopa, AZ |
| Headline | Flash Flood Warning issued August 30 at 10:47PM MST until August 31 at 12:45AM MST by NWS Phoenix AZ |
| Expires | 2026-08-31T00:45:00-07:00 |
| SenderName | NWS Phoenix AZ |
| HasExactCoords | true |
| MergedCount | 4 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.18449be702b1b4ff1ba4f06ac2a82d49949a1904.001.1","noaa_urn:oid:2.49.0.1.840.0.bbf54c4ba0e3560fab82e9036572bd468c14ff34.001.1","noaa_urn:oid:2.49.0.1.840.0.8e35da61809a1b612773679df519173e5f8e75a9.001.1","noaa_urn:oid:2.49.0.1.840.0.d32e15d7bfcc5aa3f5c857e4ac5623586e1e8701.001.1"] |
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 10 February 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.
Calamity.live data shows a weather event with CalamityScore 43/100, near Buckeye (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 191 scientific monitoring sources.