Debris Flow in Pitkin County, Colorado
Debris Flow July 29, 2021 · Pitkin County, Colorado
Where the report was made, with tornadoes recorded within 15 miles over the years.
What the National Weather Service wrote
Several mudslides occurred along Colorado Highway 133 near Redstone as a result of heavy rains. Debris depth was 7 to 8 feet with one slide and 3 to 4 feet deep with another. As a result, motorists were stranded until cleanup operations were complete.
The wider storm
Substantial monsoon moisture remained over the area as high pressure drifted east over the Plains. Additionally, strong instability was in place as a midlevel shortwave trough moved overhead. As a result, widespread showers and thunderstorms developed across the area with many storms producing heavy rain. This led to multiple debris flows across portions of west-central Colorado including over the Grizzly Creek Fire burn scar. Additionally, a severe thunderstorm produced large hail in Garfield County.
Began near Redstone (39.1900, -107.2400).
Source: NOAA Storm Events Database, event 965529. Narratives are written by the National Weather Service forecast office that issued the report.
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