Flash Flood — Coconino, Arizona

2025-07-02 · near Sunnyside, Coconino, Arizona

Event narrative

A county official reported a 5 foot rise in 45 minutes at the Rio de Flag Coconino County ALERT gauge located near the Flagstaff Mall.

Wider weather episode

Deep tropical monsoon moisture interacted with an approaching upper level low moving towards the southern California coastline to bring strong thunderstorms and flash flooding to the region.

View location on OpenStreetMap → (35.2228, -111.5666)

Source: NOAA Storm Events Database, event_id 1262000. Narrative written by the NWS forecast office that issued the report.