Updated Dec. 4, 2019 2:14 PM
After one storm system wallops Southern California and Arizona with heavy rain and high-country snow through Wednesday night, a much larger storm is set to slam Central and Northern California with a wide array of impacts from Friday into Saturday.
Although the center of the storm system will move ashore in Oregon later Saturday into Saturday night, the worst of the impacts will occur farther to the south.
Heavy rain and gusty winds will target coastal areas from San Francisco northward into southern Oregon spanning Friday into Saturday, as well as the Central Valley's I-5 corridor from Sacramento to Redding.
The foothills of the Sierra Nevada will also be hit hard with flooding downpours during this time.
A general 1-2 inches of rain is forecast in the lowest elevations of the I-5 corridor and San Francisco Bay area, while 2-4 inches is more likely in coastal areas of Northern California.
It is in the coastal ranges and foothills of the Sierra, however, that rainfall totals of 3-6 inches will occur. An AccuWeather Local StormMax™ of 8 inches is anticipated in these regions.
Because California is no longer suffering from drought and has actually been abnormally wet over the past one to two weeks, the heavy rainfall will significantly heighten the risk for flooding and mudslides, especially in burn-scar areas from this year's wildfires.
https://www.accuweather.com/en/weather-news/powerful-storm-to-slam-west-coast-with-feet-of-snow-flooding-rain-late-this-week/639384
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