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Flash Flood in San Miguel County, Colorado
Flash Flood July 31, 2021 · San Miguel County, Colorado
Where the report was made, with tornadoes recorded within 15 miles over the years.
What the National Weather Service wrote
Several inches of water ran across Colorado Highway 145 between mile markers 86 and 88.
The wider storm
High pressure retrograted in response to a deepening mid-level trough over the center of the nation and parked over western Colorado. Even so, subtropical moisture remained entrenched over the area with precipitable water values exceeding an inch and trending over 150% of the climatological norm. As a result, widespread showers and thunderstorms erupted over western Colorado. Additionally, convergence along the Continental Divide enhanced storm coverage. Heavy rain and training was common with storms which led to numerous reports of flash flooding and debris flows, including over the Pine Gulch and Grizzly Creek Fire burn scars.
Began near Placerville (38.0300, -108.1100).
Source: NOAA Storm Events Database, event 965536. Narratives are written by the National Weather Service forecast office that issued the report.
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