A series of storm systems are lining up across the Pacific Ocean and will affect southwest California through the week. The first storm has already brought a trace of rain to northern San Luis Obispo County this afternoon and is expected to spread south of Point Conception tonight. The chance of rain and mountain snow will persist across the entire forecast area into Monday mid- morning. But most areas should see between one quarter and three quarters of an inch of Rain. Mountain resorts above 6000 feet could see 2 to 4 inches of snow.
The second storm will quickly follow on Tuesday and is forecasted to be stronger with more southerly flow that will help to enhance rainfall totals… especially across south facing mountains and foothills. Coastal and valley areas can generally expect between one and two inches of rain with this system… with two to four inches possible in the foothills and mountains. Due to the potential for rainfall rates briefly reaching one half inch per hour… recent burn areas… including the solimar burn area… will be at risk for flash flooding with mud and debris flows.
— LA Co Public Works (@LAPublicWorks) December 30, 2015