"California Mountains Bracing for Record Snowfall and 100-mph Winds"

California prepares for a massive snowstorm in the Sierra Nevada region, with up to 10 feet of snow and wind gusts of 140 mph expected. Ski resorts have closed, roads are shut down, and travel conditions are deemed extremely dangerous to impossible. The storm is forecast to bring heavy snow and fierce winds, with potential for avalanches, and has already caused car collisions and road closures. The snowpack in the mountains is crucial for California's water supply, and conditions are expected to improve by Monday.