Debris Flow in Pitkin County, Colorado

Debris Flow July 26, 2024 · Pitkin County, Colorado

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

What the National Weather Service wrote

A strong thunderstorm produced heavy rainfall rates resulting in a large mudslide at Avalanche Ranch along Highway 133. There were other mudslides along Highway 133 between Redstone Blvd and Red Dog Rd about 4 miles north of Redstone. These mudslides resulted in Highway 133 being closed in both directions from mile markers 53 to 57.

The wider storm

Deep monsoonal moisture pushed in from the west during the overnight and early morning hours accompanied by a shortwave disturbance, allowing for stronger storms to form capable of heavy rainfall rates. This moisture replaced a previously dry air mass so heavy rain threat was more localized. One particular storm resulted in debris flows over Pitkin County that evening.

Began near Redstone (39.2593, -107.2354).

Source: NOAA Storm Events Database, event 1204581. Narratives are written by the National Weather Service forecast office that issued the report.

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