This alert expired on 12 August 2026 at 02:36 UTC. It is kept here as a record.
The last comparable one was on 5 August 2026. One more was recorded here in the fortnight before it.
What the source measured
NOAA reported: Flash Flood Warning issued August 11 at 7:26PM MST until August 11 at 7:30PM 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 22 out of 100, at 59 % 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) | 22 / 100 |
| Our confidence | 59% |
| Coordinates | 33.4439, -110.0150 |
| Nearest City | Florence (136 km) |
| Impact Tier | minor |
| Timestamp | 2026-08-12T02:26:00.000Z |
Score Breakdown
Technical Details
| Event | Flash Flood Warning |
| Urgency | Immediate |
| Certainty | Likely |
| AreaDesc | Gila, AZ; Navajo, AZ; Yavapai, AZ; Apache, AZ and 2 more areas |
| Headline | Flash Flood Warning issued August 11 at 7:26PM MST until August 11 at 7:30PM MST by NWS Flagstaff AZ |
| Expires | 2026-08-11T19:36:00-07:00 |
| SenderName | NWS Flagstaff AZ |
| HasExactCoords | true |
| MergedCount | 6 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.b5dc712b5790223650b0b1d7b6abe0010ceb46bb.001.1","noaa_urn:oid:2.49.0.1.840.0.5637f2aee40f2c4562feb5aea91473c11b96e789.001.1","noaa_urn:oid:2.49.0.1.840.0.89ba8fbce76507427f04a31cccff234e02869f9f.001.1","noaa_urn:oid:2.49.0.1.840.0.aa4879e85184fbf3a1c1f91b5439ef4d3e762584.001.1","noaa_urn:oid:2.49.0.1.840.0.39bf680846ebe2321aecbe7920be8bc4b5e1e241.001.1","noaa_urn:oid:2.49.0.1.840.0.3bcc3deb9b8bde5b43c1012c050cd11cc67142b9.001.1"] |
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 22/100, near Florence (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 188 scientific monitoring sources.