Debris Flow in Alpine County, California

Debris Flow June 4, 2023 · Alpine County, California

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

What the National Weather Service wrote

CHP reported rock and debris flow on the westbound lane of SR89 near Indian Creek road, located 1.0 ENE of Markleeville, CA.

The wider storm

The combination of afternoon instability as well as increasing mid-level moisture pushing northward on the eastern flank of an upper level low that moved over SoCal and stalled over central-southern California. This upper feature introduced a daily chance of showers and thunderstorms during the first week of June.

Began near Markleeville (38.7055, -119.7529).

Source: NOAA Storm Events Database, event 1130427. Narratives are written by the National Weather Service forecast office that issued the report.

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