From WeatherNation РA multi-day rain and snow event pummeled California’s Sierra Nevada, with several feet of accumulation piling up over the first weekend in April. The wet storm then remained nearly stationary over the southern half of the state, where it continued to deliver heavy rain and high elevation snow through the following Friday. The biggest changes to the snowpack were recorded over the Southern Sierra where liquid snow equivalent snowpack increased by 32%! The heavy accumulation even created some massive snow rollers. Percent of normal snowpack in the Southern Sierra jumped from 44% of normal on April 4th to 60% of normal on April 11th. (more).