Debris Flow in Pitkin County, Colorado

Debris Flow July 20, 2021 · Pitkin County, Colorado

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

What the National Weather Service wrote

A mudslide resulted in the closure of Colorado Highway 133 just north of Redstone at mile marker 55. The road opened to one lane later that morning before crews finished cleanup operations.

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 Redstone (39.1970, -107.2300).

Source: NOAA Storm Events Database, event 965674. Narratives are written by the National Weather Service forecast office that issued the report.

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