LOS ANGELES — Thoroughly saturated and muddied California was drying out and cleaning up Friday in the aftermath of Pacific storms that dumped heavy rain and snow throughout the state. For the first time in days sunlight poked through clouds trailing the latest weather system, which was impacting the Rocky Mountains region as it headed east. The storms deepened the Sierra Nevada snowpack, a key part of California’s water supply, but officials warned of backcountry avalanche danger. The drought-plagued state received rainfall totals that meteorologists termed “impressive” but the deluge also left muddy messes that kept some roads closed due to flooding and the danger of rock falls in canyons. The state, however, avoided a repeat of the disaster that hit the community of Montecito a little over a year ago when a downpour on a wildfire burn scar unleashed deadly debris flows. Lifting of evacuation orders allowed residents to return to various areas, including portions of Malibu scarred by a huge November wildfire that stripped vegetation from surrounding mountains. “The potential for falling rocks, mud and debris flow still exists and residents should maintain good situational awareness when re-entering the area,” a city statement said. A Malibu hiker was critically injured by a boulder on Thursday and more than a dozen people, mostly homeless, were rescued from swollen Southern California rivers.