Debris Flow in Archuleta County, Colorado

Debris Flow July 17, 2018 · Archuleta County, Colorado

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

What the National Weather Service wrote

A mudslide occurred along Colorado Highway 160 at mile marker 124 as a result of heavy rain. Vehicles were stuck in deep mud with traffic backed up on either side of the highway. The highway was closed in both directions for almost 4 hours with about 100 vehicles backed up on either side of the mudslide area. Radar estimates showed half an inch to an inch of rainfall within an hour in that area.

The wider storm

Subtropical moisture trapped underneath a ridge of high pressure produced some thunderstorms with heavy rainfall in Archuleta and Montezuma counties. Debris flows and minor road flooding occurred as a result.

Began near Chimney Rock (37.2061, -107.3099).

Source: NOAA Storm Events Database, event 766085. Narratives are written by the National Weather Service forecast office that issued the report.

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