Debris Flow in Pitkin County, Colorado
Debris Flow August 25, 2025 · Pitkin County, Colorado
Where the report was made, with tornadoes recorded within 15 miles over the years.
What the National Weather Service wrote
As of approximately 10:10 AM MDT, two rock slides were reported to have occurred on Highway 82 in Snowmass Canyon. No road closures were reported, and no damages occurred. Road did have to be cleared. No injuries or fatalities were reported.
The wider storm
On the morning of August 25th, an unusual amount of moisture was present across eastern Utah and western Colorado. While there was quite a bit of cloud cover present across western portions of the area, skies remained clear over the northern and central Colorado Divide mountains. This helped to develop instability early in the day, which combined with lift from a passing shortwave to trigger some strong thunderstorms during the morning. With the abundant moisture, these storms were heavy rain producers.
Began near Snowmass (39.3432, -106.9804).
Source: NOAA Storm Events Database, event 1291253. Narratives are written by the National Weather Service forecast office that issued the report.
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