Flash Flood — Coconino, Arizona

2025-09-04 to 2025-09-05 · near North Rim, Coconino, Arizona

Event narrative

The National Park Service and USGS provided pictures and USGS stream gage data of a flash flood event that occurred in North Canyon Wash. The stream gage showed a peak rise of 1.1 feet at 8:55 PM on September 4th, followed by a second peak rise of 0.8 feet at 2:55 AM on September 5th. The pictures indicated higher flows of water mixed with debris and fire ash from its source in the Dragon Bravo Burn Scar area.

Wider weather episode

Heavy monsoon rain caused stream rises and flash flooding in the Grand Canyon area.

View location on OpenStreetMap → (36.4837, -112.0080)

Source: NOAA Storm Events Database, event_id 1289374. Narrative written by the NWS forecast office that issued the report.