Flash Flood in Coconino County, Arizona

Flash Flood September 4, 2025 – September 5, 2025 · Coconino County, Arizona

Where the report was made, with tornadoes recorded within 15 miles over the years.

What the National Weather Service wrote

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.

The wider storm

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

Began near North Rim (36.4837, -112.0080).

Source: NOAA Storm Events Database, event 1289374. Narratives are written by the National Weather Service forecast office that issued the report.

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