Heavy Rain in Sierra County, California

Heavy Rain October 3, 2018 – October 4, 2018 · Sierra County, California

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

What the National Weather Service wrote

Mesonet station RNYC1, 4 miles south-southeast of Sierraville (elevation 6943 feet) reported 1 inch of rainfall in a 26-hour period from 3 October 1130PST to 4 October 1330PST.

The wider storm

An upper low moved across California and western Nevada providing forcing for showers and thunderstorm across the region. The combination of a moist atmosphere, instability and diffluent forcing from the low allowed for isolated storms with localized heavy rainfall.

Began near Sierraville Drwtr Ar (39.5250, -120.3288).

Source: NOAA Storm Events Database, event 779170. Narratives are written by the National Weather Service forecast office that issued the report.

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