Debris Flow in San Juan County, Colorado

Debris Flow July 21, 2021 · San Juan County, Colorado

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

What the National Weather Service wrote

A significant debris flow of mud, rocks and branches occurred on Cinnamon Pass in the San Juan Mountains. The exact time of the slide is unknown.

The wider storm

A subtle pulse of monsoon moisture worked its way northward across western Colorado. This, paired with the already present abundance of moisture, resulted in scattered showers and thunderstorms across the region. The stronger storms produced heavy rain, some of which led to localized debris flows in Pitkin and San Juan counties.

Began near Eureka (37.9340, -107.5380).

Source: NOAA Storm Events Database, event 965681. Narratives are written by the National Weather Service forecast office that issued the report.

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