Heavy Rain in Trinity County, California

Heavy Rain December 29, 2022 – December 30, 2022 · Trinity County, California

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

What the National Weather Service wrote

Heavy rain caused a landslide across HWY 299 east of Helena.

The wider storm

Deep-layer westerly flow occurring along a zonally oriented quasi-stationary frontal boundary yielded a multi-day atmospheric river event across Northwest California during late December. Widespread impacts due to heavy rain and strong winds were observed across the region.

Began near Helena (40.7600, -123.1000).

Source: NOAA Storm Events Database, event 1068328. Narratives are written by the National Weather Service forecast office that issued the report.

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