More than half a million homes and businesses were without power in California as the state braced for another week of heavy rain, high winds and potential floods.

A senior branch forecaster at the National Weather Service said that there will be between 5 and 7 inches of rain in California in the next few days, with some isolated spots in the coastal mountains getting up to 10 inches. According to the latest computer forecast models, the pattern will continue through January 17th.

It will probably be the worst of it, but there is still a lot of weaker ones after that. There are another nine days of wet weather before we get to a dry period.

According to Power Outage.us, over half a million customers were without electricity as of Sunday morning.

US-WEATHER-CALIFORNIA
A vehicle drives on a flooded road in Sebastopol, California, on Jan. 5.

California has been battered by waves of atmospheric river storms that bring large streams of water from the Pacific that bring heavy rain, snow, and raise the risk of mudslides. According to an estimate by AccuWeather Inc., the systems have caused more than a billion dollars in damage so far.

According to the Center for Western Weather and Water Extremes website, some of the forecast models have changed as the storm approaches. It was forecast that it would be a stronger Category 4 event.

Massive Storm Brings Flooding Rains And Damaging Winds To California
In an aerial view, damage is visible on the Capitola Wharf following a powerful winter storm on Jan. 6. 

In recent weeks, California has been drenched with so much water that it will cause widespread outages, mud slides and floods that will cover roads with debris. According to the US Storm Prediction Center, there's a chance of a tornado on Monday.

It is going to be a difficult day Monday.