Debris Flow in Napa County, California

Debris Flow January 8, 2018 – January 9, 2018 · Napa County, California

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

What the National Weather Service wrote

Uphill slippage reported on Redwood Road at mile marker 3.5 on the perimeter of the Nuns Fire burn scar. Exact time of occurrence is unknown.

The wider storm

The combination of two storm systems, one off the northern California coast and one southwest of Los Angeles, produced heavy rainfall across the central coast over January 8th to the 9th. Rain caused minor roadway flooding and a few small debris flows.

Began near Lokoya (38.3437, -122.4057).

Source: NOAA Storm Events Database, event 730501. Narratives are written by the National Weather Service forecast office that issued the report.

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