Debris Flow in San Juan County, Utah

Debris Flow August 26, 2021 · San Juan County, Utah

$1K

Damage as recorded

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

What the National Weather Service wrote

Water and rock flowed across Utah Highway 191 at mile marker 110 near Hole in the Rock.

The wider storm

A shortwave trough progressed across the region as subtropical moisture streamed in from the south. As a result, scattered showers and thunderstorms developed across eastern Utah. Moderate instability produced some stronger thunderstorms that generated severe wind gusts as well as heavy rain which led to isolated debris flows.

Began near Grand Co Arpt (38.4000, -109.4500).

Source: NOAA Storm Events Database, event 970670. Narratives are written by the National Weather Service forecast office that issued the report.

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