Debris Flow in San Juan County, Colorado

Debris Flow July 30, 2021 · San Juan County, Colorado

$10K

Damage as recorded

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

What the National Weather Service wrote

A section of Hotel Draw Road (Forest Service Road 550) was blocked by a mudslide one-half mile east of its intersection with the Colorado Trail.

The wider storm

The prolonged North American Monsoon pattern prevailed across western Colorado with abundant moisture present as precipitable water values trended to 170% of normal. Additionally, morning sunshine allowed the atmosphere to rapidly destabilize over the higher terrain. As a result, another round of strong thunderstorms developed and produced heavy rain which caused several mudslides across portions of west-central Colorado.

Began near Elk Park (37.6557, -107.9578).

Source: NOAA Storm Events Database, event 965810. Narratives are written by the National Weather Service forecast office that issued the report.

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