It's welcome news for the state, which has just endured its driest year in recorded history.
While the rain won't be enough to end the drought, the National Weather Service projects that by Saturday, twin Pacific storms may bring as much as two inches of rain to the coast and several feet of snow to the Sierra.
The first storm is expected on Wednesday and will offer light rains.
But the storm on Friday is expected to drench the entire state for 24 hours.
The annual report on California's Air Quality has just been released, and the drought is listed as a major factor this year.
Rain and snow may not have pushed California out of its drought, but the late season precipitation will mean a little more water for State Water Project users. There is also relief for some federal Central Valley Project users.
A new survey finds Californians are split over the cause of the state's drought.
Hundreds of waterfalls are cascading throughout Yosemite National Park, but they may not last too much longer.
California and federal agencies have released a plan about how they’ll operate the state and federal water projects during the drought. The plan does not change water allocations.