Southern California is bracing for a significant storm expected to bring months' worth of rainfall and strong winds, according to CNN. This storm is the most powerful in a series of atmospheric river-fueled events affecting the region this week, following a previous storm that caused severe flooding in Northern California. The storm's impact began on the California coast Tuesday night, with heavy rain anticipated to continue through Wednesday evening. The Weather Prediction Center has issued a Level 4 'high' risk of flooding for Wednesday, impacting over 6 million people in Los Angeles, San Bernardino, Ventura, and Santa Barbara counties. There is a substantial risk of urban flooding, rock/mudslides, and debris flows, with evacuation orders in place for areas near recent burn scars.