Flood in Napa County, California

Flood February 4, 2019 · Napa County, California

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

What the National Weather Service wrote

SR 12 at SR 121 northbound lanes flooded.

The wider storm

A mid/upper low with a very cold airmass moved through in early February bringing snow to lower elevation peaks across the region prompting a rare Winter Weather Advisory. Junipero Serra Peak received around a foot of snow. Rainfall just ahead of this system also brought roadway flooding and minor debris flows.

Began near West Napa (38.2577, -122.3027).

Source: NOAA Storm Events Database, event 800429. Narratives are written by the National Weather Service forecast office that issued the report.

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