Flood — Navajo, Arizona

2023-08-09 to 2023-08-12 · near Woodruff, Navajo, Arizona

Event narrative

A USGS stream gage on the Little Colorado River at Woodruff showed a rise of 6.9 feet starting at 120 PM on August 9. The flow returned to a normal level around 1000 PM on August 10. The flood started at Hoolbrook at 600 PM August and rose around 4.5 feet by 200 AM on August 10. This flood reached the Colorado River at 500 PM on August 10 and the river level rose 1.7 feet.

Wider weather episode

The air flow over Arizona slowly transitioned from a west to east trajectory, to more southerly. This was due to a nearly stationary low forming off the western coast of California, which will provided some dynamical forcing. This allowed moisture to move northward from Mexico. Scattered to numerous showers and thunderstorms formed over the north-central Arizona.

View location on OpenStreetMap → (34.7800, -110.0400)

Source: NOAA Storm Events Database, event_id 1109726. Narrative written by the NWS forecast office that issued the report.