@cnn: A dangerous #winterstorm is slamming #northerncalifornia with rare #blizzard conditions and fierce winds as it threatens to unload up to 10 feet of snow in the mountains and snarl travel. About a half million people are under blizzard warnings in the Mountain West, with another 6 million under winter weather alerts across the region. The weather service on Friday warned of “high to extreme” avalanche danger through Sunday afternoon in the Central Sierra and Greater Lake Tahoe area. The most extreme conditions are unfolding at the highest elevations, where snowfall rates could top three to five inches an hour through Saturday, threatening road closures and increasing the risk of avalanches. Read more at the link in our bio.