Heavy Rain in Alpine County, California

Heavy Rain July 20, 2018 · Alpine County, California

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

What the National Weather Service wrote

SNOTEL MNPC1 at Monitor Pass (elevation 8304 feet) reported 1.10 inches of rainfall in a 5-hour period from 20 July 1200PST to 1700PST.

The wider storm

Daytime heating and ample moisture along the periphery of a ridge caused scattered convection over western Nevada and the eastern Sierra July 19th through the 25th. Several storms produced heavy rainfall which led to flash flooding and debris flows. Hail was also reported with some storms.

Began near Loope (38.6683, -119.6087).

Source: NOAA Storm Events Database, event 778231. Narratives are written by the National Weather Service forecast office that issued the report.

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