Flash Flood — Navajo, Arizona

2022-08-11 · near Shonto, Navajo, Arizona

Event narrative

Flash flooding over Highway 160 was reported (Social Media and Law Enforcement) between on Highway 160 between Tonalea, Shonto, and Tsegi. Highway 98 was flooded near Shanto Wash.

Wider weather episode

Above normal precipitable water values, high surface dewpoints, and light southerly or southeasterly steering flow will continued across northern Arizona. The morning sounding showed moderate instability, with potential for back-building and/or training. The Weather Prediction Center put northern Arizona in the slight risk categories and a Flash Flood Watch was issued for much of the CWA.

View location on OpenStreetMap → (36.6176, -110.5421)

Source: NOAA Storm Events Database, event_id 1052295. Narrative written by the NWS forecast office that issued the report.