Less than a week after another storm brought near-record rain to San Francisco, the weather forecaster warns that a bomb cyclone will hit California on Wednesday with life threatening flooding and high winds.

Flash flood and landslides in San Francisco Bay Area

San Francisco received a record amount of rain in a single day.

Anadolu Agency via Getty Images

The Weather Channel predicts as much as eight inches of rain in some areas of northern California and 60 mph wind gusts in the Sierra Nevada mountains.

Flood watches, high wind warnings and coastal flood watches have been issued by the National Weather Service for Santa Barbara County in southern California, where the storm is expected to stretch from Wednesday into Thursday.

According to the NWS Bay Area branch, the long, narrow stretch of heavy rain will connect with a low-pressure system that is expected to develop into a bomb cyclone.

The storm will increase the threat for widespread flooding and wind damage in the San Francisco Bay area.

According to the Center for Western Weather and Water Extremes, which rates atmospheric rivers, the upcoming river is a category three event, but that rating does not consider previous rainfall or the saturation of the ground.

PLAY 1/1 Skip Ad Continue watching after the ad Loading PodsVisit Advertiser websiteGO TO PAGE

The second-wettest day on record in San Francisco was on New Year's Eve, with over five inches of rain, just short of a 1994 storm. It was the third wettest day on record in Redwood City, California, which received 4.88 inches, under the all-time record set in 1962.

What To Watch For

There are mud slides. The risk of mudslides can last days after the rain ends, according to Jon Porter of AccuWeather. There was a mud slide on New Year's Eve.

Crucial Quote

The storm will likely be one of the most impactful systems on a widespread scale that has impacted the area in a long while.

An atmospheric river to slam California is a truly brutal system.