Highlights
- NWS Phoenix issued a Severe Flood Warning for Maricopa County effective 10:23 p.m. Wednesday, expiring 12:45 a.m. Thursday.
- Indian Bend Wash gauge readings exceeded alarm stage; flooding is already occurring in Paradise Valley and Downtown Scottsdale.
- Low-water crossings are inundated and may not be passable; up to 0.5 inches of additional rainfall is possible.
- NWS instructs drivers to turn around and avoid flooded roads, noting most flood deaths occur in vehicles.
<p>FLOOD WARNING: The National Weather Service in Phoenix issued a Severe Flood Warning for Maricopa County at 10:23 p.m. Wednesday, September 16, running until 12:45 a.m. Thursday, September 17, as gauge readings on Indian Bend Wash climbed above alarm stage following earlier thunderstorms.</p> <p>Flooding is already occurring in the warned area, according to the <a href="https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.91c9ce2372f5ccd46be02bfd89b59aa273b1be69.001.1">NWS alert</a>. Affected locations include Paradise Valley and <a href="/entity/downtown/">Downtown</a> Scottsdale. Low-water crossings are inundated and may not be passable. An additional 0.5 inches of rainfall remains possible within the warned area.</p> <p>Rivers, creeks, streams, and other low-lying and flood-prone locations face imminent or ongoing flooding. NWS instructs anyone encountering flooded roads to turn around, noting that most flood deaths occur in vehicles.</p> <p>The warning expires at 12:45 a.m. MST; residents should monitor <a href="http://www.weather.gov/safety/flood">weather.gov</a> for updates as conditions develop.</p>
Sources
Every factual claim in this article traces to one of the sources below. See how we work for the editorial process.
- api.weather.gov retrieved 17/09/2026 05:28
Authored by The Scottsdale Signal. Drafted by AI from primary-source material under our beat-specific editorial guides; reviewed by humans before publish under our five-gate process. Sources retrieved at 17/09/2026 05:28. Every claim traces to a source.
